blender-archive/source/blender/editors/interface/interface_widgets.c

/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version. 
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2009 Blender Foundation.
 * All rights reserved.
 * 
 * Contributor(s): Blender Foundation
 *
 * ***** END GPL LICENSE BLOCK *****
 */

/** \file blender/editors/interface/interface_widgets.c
 *  \ingroup edinterface
 */


#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>


#include "DNA_screen_types.h"
#include "DNA_userdef_types.h"

#include "BLI_math.h"
#include "BLI_listbase.h"
#include "BLI_rect.h"
#include "BLI_string.h"
#include "BLI_string_utf8.h"
#include "BLI_utildefines.h"

#include "BKE_context.h"
#include "BKE_curve.h"
#include "BKE_utildefines.h"

#include "RNA_access.h"

#include "BIF_gl.h"
#include "BIF_glutil.h"

#include "BLF_api.h"

#include "UI_interface.h"
#include "UI_interface_icons.h"


#include "interface_intern.h"

/* ************** widget base functions ************** */
/*
 * - in: roundbox codes for corner types and radius
 * - return: array of [size][2][x,y] points, the edges of the roundbox, + UV coords
 *
 * - draw black box with alpha 0 on exact button boundbox
 * - for ever AA step:
 *    - draw the inner part for a round filled box, with color blend codes or texture coords
 *    - draw outline in outline color
 *    - draw outer part, bottom half, extruded 1 pixel to bottom, for emboss shadow
 *    - draw extra decorations
 * - draw background color box with alpha 1 on exact button boundbox
 */

/* fill this struct with polygon info to draw AA'ed */
/* it has outline, back, and two optional tria meshes */

typedef struct uiWidgetTrias {
	unsigned int tot;
	
	float vec[32][2];
	unsigned int (*index)[3];
	
} uiWidgetTrias;

/* max as used by round_box__edges */
#define WIDGET_CURVE_RESOLU 9
#define WIDGET_SIZE_MAX (WIDGET_CURVE_RESOLU*4)

typedef struct uiWidgetBase {
	
	int totvert, halfwayvert;
	float outer_v[WIDGET_SIZE_MAX][2];
	float inner_v[WIDGET_SIZE_MAX][2];
	float inner_uv[WIDGET_SIZE_MAX][2];
	
	short inner, outline, emboss; /* set on/off */
	short shadedir;
	
	uiWidgetTrias tria1;
	uiWidgetTrias tria2;
	
} uiWidgetBase;

/* uiWidgetType: for time being only for visual appearance,
 * later, a handling callback can be added too 
 */
typedef struct uiWidgetType {
	
	/* pointer to theme color definition */
	uiWidgetColors *wcol_theme;
	uiWidgetStateColors *wcol_state;
	
	/* converted colors for state */
	uiWidgetColors wcol;
	
	void (*state)(struct uiWidgetType *, int state);
	void (*draw)(uiWidgetColors *, rcti *, int state, int roundboxalign);
	void (*custom)(uiBut *, uiWidgetColors *, rcti *, int state, int roundboxalign);
	void (*text)(uiFontStyle *, uiWidgetColors *, uiBut *, rcti *);
	
} uiWidgetType;


/* *********************** draw data ************************** */

static float cornervec[WIDGET_CURVE_RESOLU][2]= {{0.0, 0.0}, {0.195, 0.02}, {0.383, 0.067}, {0.55, 0.169},
{0.707, 0.293}, {0.831, 0.45}, {0.924, 0.617}, {0.98, 0.805}, {1.0, 1.0}};

#define WIDGET_AA_JITTER 8
static float jit[WIDGET_AA_JITTER][2]= {
    { 0.468813 , -0.481430}, {-0.155755 , -0.352820},
    { 0.219306 , -0.238501}, {-0.393286 , -0.110949},
    {-0.024699 ,  0.013908}, { 0.343805 ,  0.147431},
    {-0.272855 ,  0.269918}, { 0.095909 ,  0.388710}};

static float num_tria_vert[3][2]= { 
{-0.352077, 0.532607}, {-0.352077, -0.549313}, {0.330000, -0.008353}};

static unsigned int num_tria_face[1][3]= {
{0, 1, 2}};

static float scroll_circle_vert[16][2]= {
{0.382684, 0.923879}, {0.000001, 1.000000}, {-0.382683, 0.923880}, {-0.707107, 0.707107},
{-0.923879, 0.382684}, {-1.000000, 0.000000}, {-0.923880, -0.382684}, {-0.707107, -0.707107},
{-0.382683, -0.923880}, {0.000000, -1.000000}, {0.382684, -0.923880}, {0.707107, -0.707107},
{0.923880, -0.382684}, {1.000000, -0.000000}, {0.923880, 0.382683}, {0.707107, 0.707107}};

static unsigned int scroll_circle_face[14][3]= {
{0, 1, 2}, {2, 0, 3}, {3, 0, 15}, {3, 15, 4}, {4, 15, 14}, {4, 14, 5}, {5, 14, 13}, {5, 13, 6}, 
{6, 13, 12}, {6, 12, 7}, {7, 12, 11}, {7, 11, 8}, {8, 11, 10}, {8, 10, 9}};

static float menu_tria_vert[6][2]= {
{-0.41, 0.16}, {0.41, 0.16}, {0, 0.82}, 
{0, -0.82}, {-0.41, -0.16}, {0.41, -0.16}};

static unsigned int menu_tria_face[2][3]= {{2, 0, 1}, {3, 5, 4}};

static float check_tria_vert[6][2]= {
{-0.578579, 0.253369}, 	{-0.392773, 0.412794}, 	{-0.004241, -0.328551}, 
{-0.003001, 0.034320}, 	{1.055313, 0.864744}, 	{0.866408, 1.026895}};

static unsigned int check_tria_face[4][3]= {
{3, 2, 4}, {3, 4, 5}, {1, 0, 3}, {0, 2, 3}};

GLubyte checker_stipple_sml[32*32/8] =
{
	255,0,255,0,255,0,255,0,255,0,255,0,255,0,255,0,
	255,0,255,0,255,0,255,0,255,0,255,0,255,0,255,0,
	0,255,0,255,0,255,0,255,0,255,0,255,0,255,0,255,
	0,255,0,255,0,255,0,255,0,255,0,255,0,255,0,255,
	255,0,255,0,255,0,255,0,255,0,255,0,255,0,255,0,
	255,0,255,0,255,0,255,0,255,0,255,0,255,0,255,0,
	0,255,0,255,0,255,0,255,0,255,0,255,0,255,0,255,
	0,255,0,255,0,255,0,255,0,255,0,255,0,255,0,255,
};

/* ************************************************* */

void ui_draw_anti_tria(float x1, float y1, float x2, float y2, float x3, float y3)
{
	float tri_arr[3][2]= {{x1, y1}, {x2, y2}, {x3, y3}};
	float color[4];
	int j;
	
	glEnable(GL_BLEND);
	glGetFloatv(GL_CURRENT_COLOR, color);
	color[3] *= 0.125f;
	glColor4fv(color);

	glEnableClientState(GL_VERTEX_ARRAY);
	glVertexPointer(2, GL_FLOAT, 0, tri_arr);

	/* for each AA step */
	for (j = 0; j < WIDGET_AA_JITTER; j++) {
		glTranslatef(1.0f * jit[j][0], 1.0f * jit[j][1], 0.0f);
		glDrawArrays(GL_TRIANGLES, 0, 3);
		glTranslatef(-1.0f * jit[j][0], -1.0f * jit[j][1], 0.0f);
	}

	glDisableClientState(GL_VERTEX_ARRAY);
	glDisable(GL_BLEND);
}

void ui_draw_anti_roundbox(int mode, float minx, float miny, float maxx, float maxy, float rad)
{
	float color[4];
	int j;
	
	glEnable(GL_BLEND);
	glGetFloatv(GL_CURRENT_COLOR, color);
	color[3] *= 0.125f;
	glColor4fv(color);
	
	for (j = 0;  j < WIDGET_AA_JITTER; j++) {
		glTranslatef(1.0f * jit[j][0], 1.0f * jit[j][1], 0.0f);
		uiDrawBox(mode, minx, miny, maxx, maxy, rad);
		glTranslatef(-1.0f * jit[j][0], -1.0f * jit[j][1], 0.0f);
	}

	glDisable(GL_BLEND);
}

static void widget_init(uiWidgetBase *wtb)
{
	wtb->totvert= wtb->halfwayvert= 0;
	wtb->tria1.tot= 0;
	wtb->tria2.tot= 0;
	
	wtb->inner= 1;
	wtb->outline= 1;
	wtb->emboss= 1;
	wtb->shadedir= 1;
}

/* helper call, makes shadow rect, with 'sun' above menu, so only shadow to left/right/bottom */
/* return tot */
static int round_box_shadow_edges(float (*vert)[2], rcti *rect, float rad, int roundboxalign, float step)
{
	float vec[WIDGET_CURVE_RESOLU][2];
	float minx, miny, maxx, maxy;
	int a, tot= 0;
	
	rad+= step;
	
	if(2.0f*rad > rect->ymax-rect->ymin)
		rad= 0.5f*(rect->ymax-rect->ymin);
	
	minx= rect->xmin-step;
	miny= rect->ymin-step;
	maxx= rect->xmax+step;
	maxy= rect->ymax+step;
	
	/* mult */
	for(a=0; a < WIDGET_CURVE_RESOLU; a++) {
		vec[a][0]= rad*cornervec[a][0]; 
		vec[a][1]= rad*cornervec[a][1]; 
	}
	
	/* start with left-top, anti clockwise */
	if(roundboxalign & UI_CNR_TOP_LEFT) {
		for(a=0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
			vert[tot][0]= minx+rad-vec[a][0];
			vert[tot][1]= maxy-vec[a][1];
		}
	}
	else {
		for(a=0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
			vert[tot][0]= minx;
			vert[tot][1]= maxy;
		}
	}
	
	if(roundboxalign & UI_CNR_BOTTOM_LEFT) {
		for(a=0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
			vert[tot][0]= minx+vec[a][1];
			vert[tot][1]= miny+rad-vec[a][0];
		}
	}
	else {
		for(a=0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
			vert[tot][0]= minx;
			vert[tot][1]= miny;
		}
	}
	
	if(roundboxalign & UI_CNR_BOTTOM_RIGHT) {
		for(a=0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
			vert[tot][0]= maxx-rad+vec[a][0];
			vert[tot][1]= miny+vec[a][1];
		}
	}
	else {
		for(a=0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
			vert[tot][0]= maxx;
			vert[tot][1]= miny;
		}
	}
	
	if(roundboxalign & UI_CNR_TOP_RIGHT) {
		for(a=0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
			vert[tot][0]= maxx-vec[a][1];
			vert[tot][1]= maxy-rad+vec[a][0];
		}
	}
	else {
		for(a=0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
			vert[tot][0]= maxx;
			vert[tot][1]= maxy;
		}
	}
	return tot;
}

/* this call has 1 extra arg to allow mask outline */
static void round_box__edges(uiWidgetBase *wt, int roundboxalign, rcti *rect, float rad, float radi)
{
	float vec[WIDGET_CURVE_RESOLU][2], veci[WIDGET_CURVE_RESOLU][2];
	float minx= rect->xmin, miny= rect->ymin, maxx= rect->xmax, maxy= rect->ymax;
	float minxi= minx + 1.0f; /* boundbox inner */
	float maxxi= maxx - 1.0f;
	float minyi= miny + 1.0f;
	float maxyi= maxy - 1.0f;
	float facxi= (maxxi!=minxi) ? 1.0f/(maxxi-minxi) : 0.0f; /* for uv, can divide by zero */
	float facyi= (maxyi!=minyi) ? 1.0f/(maxyi-minyi) : 0.0f;
	int a, tot= 0, minsize;
	const int hnum= ((roundboxalign & (UI_CNR_TOP_LEFT | UI_CNR_TOP_RIGHT))==(UI_CNR_TOP_LEFT | UI_CNR_TOP_RIGHT) ||
	                 (roundboxalign & (UI_CNR_BOTTOM_RIGHT | UI_CNR_BOTTOM_LEFT))==(UI_CNR_BOTTOM_RIGHT | UI_CNR_BOTTOM_LEFT)) ? 1 : 2;
	const int vnum= ((roundboxalign & (UI_CNR_TOP_LEFT | UI_CNR_BOTTOM_LEFT))==(UI_CNR_TOP_LEFT | UI_CNR_BOTTOM_LEFT) ||
	                 (roundboxalign & (UI_CNR_TOP_RIGHT | UI_CNR_BOTTOM_RIGHT))==(UI_CNR_TOP_RIGHT | UI_CNR_BOTTOM_RIGHT)) ? 1 : 2;

	minsize= MIN2((rect->xmax-rect->xmin)*hnum, (rect->ymax-rect->ymin)*vnum);
	
	if(2.0f*rad > minsize)
		rad= 0.5f*minsize;

	if(2.0f*(radi+1.0f) > minsize)
		radi= 0.5f*minsize - 1.0f;
	
	/* mult */
	for(a=0; a < WIDGET_CURVE_RESOLU; a++) {
		veci[a][0]= radi*cornervec[a][0]; 
		veci[a][1]= radi*cornervec[a][1]; 
		vec[a][0]= rad*cornervec[a][0]; 
		vec[a][1]= rad*cornervec[a][1]; 
	}
	
	/* corner left-bottom */
	if(roundboxalign & UI_CNR_BOTTOM_LEFT) {
		
		for(a=0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
			wt->inner_v[tot][0]= minxi+veci[a][1];
			wt->inner_v[tot][1]= minyi+radi-veci[a][0];
			
			wt->outer_v[tot][0]= minx+vec[a][1];
			wt->outer_v[tot][1]= miny+rad-vec[a][0];
			
			wt->inner_uv[tot][0]= facxi*(wt->inner_v[tot][0] - minxi);
			wt->inner_uv[tot][1]= facyi*(wt->inner_v[tot][1] - minyi);
		}
	}
	else {
		wt->inner_v[tot][0]= minxi;
		wt->inner_v[tot][1]= minyi;
		
		wt->outer_v[tot][0]= minx;
		wt->outer_v[tot][1]= miny;

		wt->inner_uv[tot][0]= 0.0f;
		wt->inner_uv[tot][1]= 0.0f;
		
		tot++;
	}
	
	/* corner right-bottom */
	if(roundboxalign & UI_CNR_BOTTOM_RIGHT) {
		
		for(a=0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
			wt->inner_v[tot][0]= maxxi-radi+veci[a][0];
			wt->inner_v[tot][1]= minyi+veci[a][1];
			
			wt->outer_v[tot][0]= maxx-rad+vec[a][0];
			wt->outer_v[tot][1]= miny+vec[a][1];
			
			wt->inner_uv[tot][0]= facxi*(wt->inner_v[tot][0] - minxi);
			wt->inner_uv[tot][1]= facyi*(wt->inner_v[tot][1] - minyi);
		}
	}
	else {
		wt->inner_v[tot][0]= maxxi;
		wt->inner_v[tot][1]= minyi;
		
		wt->outer_v[tot][0]= maxx;
		wt->outer_v[tot][1]= miny;

		wt->inner_uv[tot][0]= 1.0f;
		wt->inner_uv[tot][1]= 0.0f;
		
		tot++;
	}
	
	wt->halfwayvert= tot;
	
	/* corner right-top */
	if(roundboxalign & UI_CNR_TOP_RIGHT) {
		
		for(a=0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
			wt->inner_v[tot][0]= maxxi-veci[a][1];
			wt->inner_v[tot][1]= maxyi-radi+veci[a][0];
			
			wt->outer_v[tot][0]= maxx-vec[a][1];
			wt->outer_v[tot][1]= maxy-rad+vec[a][0];
			
			wt->inner_uv[tot][0]= facxi*(wt->inner_v[tot][0] - minxi);
			wt->inner_uv[tot][1]= facyi*(wt->inner_v[tot][1] - minyi);
		}
	}
	else {
		wt->inner_v[tot][0]= maxxi;
		wt->inner_v[tot][1]= maxyi;
		
		wt->outer_v[tot][0]= maxx;
		wt->outer_v[tot][1]= maxy;
		
		wt->inner_uv[tot][0]= 1.0f;
		wt->inner_uv[tot][1]= 1.0f;
		
		tot++;
	}
	
	/* corner left-top */
	if(roundboxalign & UI_CNR_TOP_LEFT) {
		
		for(a=0; a < WIDGET_CURVE_RESOLU; a++, tot++) {
			wt->inner_v[tot][0]= minxi+radi-veci[a][0];
			wt->inner_v[tot][1]= maxyi-veci[a][1];
			
			wt->outer_v[tot][0]= minx+rad-vec[a][0];
			wt->outer_v[tot][1]= maxy-vec[a][1];
			
			wt->inner_uv[tot][0]= facxi*(wt->inner_v[tot][0] - minxi);
			wt->inner_uv[tot][1]= facyi*(wt->inner_v[tot][1] - minyi);
		}
		
	}
	else {
		
		wt->inner_v[tot][0]= minxi;
		wt->inner_v[tot][1]= maxyi;
		
		wt->outer_v[tot][0]= minx;
		wt->outer_v[tot][1]= maxy;
		
		wt->inner_uv[tot][0]= 0.0f;
		wt->inner_uv[tot][1]= 1.0f;
		
		tot++;
	}

	BLI_assert(tot <= WIDGET_SIZE_MAX);

	wt->totvert= tot;
}

static void round_box_edges(uiWidgetBase *wt, int roundboxalign, rcti *rect, float rad)
{
	round_box__edges(wt, roundboxalign, rect, rad, rad-1.0f);
}


/* based on button rect, return scaled array of triangles */
static void widget_num_tria(uiWidgetTrias *tria, rcti *rect, float triasize, char where)
{
	float centx, centy, sizex, sizey, minsize;
	int a, i1=0, i2=1;
	
	minsize= MIN2(rect->xmax-rect->xmin, rect->ymax-rect->ymin);
	
	/* center position and size */
	centx= (float)rect->xmin + 0.5f*minsize;
	centy= (float)rect->ymin + 0.5f*minsize;
	sizex= sizey= -0.5f*triasize*minsize;

	if(where=='r') {
		centx= (float)rect->xmax - 0.5f*minsize;
		sizex= -sizex;
	}	
	else if(where=='t') {
		centy= (float)rect->ymax - 0.5f*minsize;
		sizey= -sizey;
		i2=0; i1= 1;
	}	
	else if(where=='b') {
		sizex= -sizex;
		i2=0; i1= 1;
	}	
	
	for(a=0; a<3; a++) {
		tria->vec[a][0]= sizex*num_tria_vert[a][i1] + centx;
		tria->vec[a][1]= sizey*num_tria_vert[a][i2] + centy;
	}
	
	tria->tot= 1;
	tria->index= num_tria_face;
}

static void widget_scroll_circle(uiWidgetTrias *tria, rcti *rect, float triasize, char where)
{
	float centx, centy, sizex, sizey, minsize;
	int a, i1=0, i2=1;
	
	minsize= MIN2(rect->xmax-rect->xmin, rect->ymax-rect->ymin);
	
	/* center position and size */
	centx= (float)rect->xmin + 0.5f*minsize;
	centy= (float)rect->ymin + 0.5f*minsize;
	sizex= sizey= -0.5f*triasize*minsize;

	if(where=='r') {
		centx= (float)rect->xmax - 0.5f*minsize;
		sizex= -sizex;
	}	
	else if(where=='t') {
		centy= (float)rect->ymax - 0.5f*minsize;
		sizey= -sizey;
		i2=0; i1= 1;
	}	
	else if(where=='b') {
		sizex= -sizex;
		i2=0; i1= 1;
	}	
	
	for(a=0; a<16; a++) {
		tria->vec[a][0]= sizex*scroll_circle_vert[a][i1] + centx;
		tria->vec[a][1]= sizey*scroll_circle_vert[a][i2] + centy;
	}
	
	tria->tot= 14;
	tria->index= scroll_circle_face;
}

static void widget_trias_draw(uiWidgetTrias *tria)
{
	glEnableClientState(GL_VERTEX_ARRAY);
	glVertexPointer(2, GL_FLOAT, 0, tria->vec);
	glDrawElements(GL_TRIANGLES, tria->tot*3, GL_UNSIGNED_INT, tria->index);
	glDisableClientState(GL_VERTEX_ARRAY);
}

static void widget_menu_trias(uiWidgetTrias *tria, rcti *rect)
{
	float centx, centy, size, asp;
	int a;
		
	/* center position and size */
	centx= rect->xmax - 0.5f*(rect->ymax-rect->ymin);
	centy= rect->ymin + 0.5f*(rect->ymax-rect->ymin);
	size= 0.4f*(rect->ymax-rect->ymin);
	
	/* XXX exception */
	asp= ((float)rect->xmax-rect->xmin)/((float)rect->ymax-rect->ymin);
	if(asp > 1.2f && asp < 2.6f)
		centx= rect->xmax - 0.3f*(rect->ymax-rect->ymin);
	
	for(a=0; a<6; a++) {
		tria->vec[a][0]= size*menu_tria_vert[a][0] + centx;
		tria->vec[a][1]= size*menu_tria_vert[a][1] + centy;
	}

	tria->tot= 2;
	tria->index= menu_tria_face;
}

static void widget_check_trias(uiWidgetTrias *tria, rcti *rect)
{
	float centx, centy, size;
	int a;
	
	/* center position and size */
	centx= rect->xmin + 0.5f*(rect->ymax-rect->ymin);
	centy= rect->ymin + 0.5f*(rect->ymax-rect->ymin);
	size= 0.5f*(rect->ymax-rect->ymin);
	
	for(a=0; a<6; a++) {
		tria->vec[a][0]= size*check_tria_vert[a][0] + centx;
		tria->vec[a][1]= size*check_tria_vert[a][1] + centy;
	}
	
	tria->tot= 4;
	tria->index= check_tria_face;
}


/* prepares shade colors */
static void shadecolors4(char coltop[4], char *coldown, const char *color, short shadetop, short shadedown)
{
	
	coltop[0]= CLAMPIS(color[0]+shadetop, 0, 255);
	coltop[1]= CLAMPIS(color[1]+shadetop, 0, 255);
	coltop[2]= CLAMPIS(color[2]+shadetop, 0, 255);
	coltop[3]= color[3];

	coldown[0]= CLAMPIS(color[0]+shadedown, 0, 255);
	coldown[1]= CLAMPIS(color[1]+shadedown, 0, 255);
	coldown[2]= CLAMPIS(color[2]+shadedown, 0, 255);
	coldown[3]= color[3];	
}

static void round_box_shade_col4_r(unsigned char col_r[4], const char col1[4], const char col2[4], const float fac)
{
	const int faci= FTOCHAR(fac);
	const int facm= 255-faci;

	col_r[0]= (faci*col1[0] + facm*col2[0])>>8;
	col_r[1]= (faci*col1[1] + facm*col2[1])>>8;
	col_r[2]= (faci*col1[2] + facm*col2[2])>>8;
	col_r[3]= (faci*col1[3] + facm*col2[3])>>8;
}

static void widget_verts_to_quad_strip(uiWidgetBase *wtb, const int totvert, float quad_strip[WIDGET_SIZE_MAX*2+2][2])
{
	int a;
	for(a=0; a<totvert; a++) {
		copy_v2_v2(quad_strip[a*2], wtb->outer_v[a]);
		copy_v2_v2(quad_strip[a*2+1], wtb->inner_v[a]);
	}
	copy_v2_v2(quad_strip[a*2], wtb->outer_v[0]);
	copy_v2_v2(quad_strip[a*2+1], wtb->inner_v[0]);
}

static void widget_verts_to_quad_strip_open(uiWidgetBase *wtb, const int totvert, float quad_strip[WIDGET_SIZE_MAX*2][2])
{
	int a;
	for(a=0; a<totvert; a++) {
		quad_strip[a*2][0]= wtb->outer_v[a][0];
		quad_strip[a*2][1]= wtb->outer_v[a][1];
		quad_strip[a*2+1][0]= wtb->outer_v[a][0];
		quad_strip[a*2+1][1]= wtb->outer_v[a][1] - 1.0f;
	}
}

static void widgetbase_outline(uiWidgetBase *wtb)
{
	float quad_strip[WIDGET_SIZE_MAX*2+2][2]; /* + 2 because the last pair is wrapped */
	widget_verts_to_quad_strip(wtb, wtb->totvert, quad_strip);

	glEnableClientState(GL_VERTEX_ARRAY);
	glVertexPointer(2, GL_FLOAT, 0, quad_strip);
	glDrawArrays(GL_QUAD_STRIP, 0, wtb->totvert*2 + 2);
	glDisableClientState(GL_VERTEX_ARRAY);
}

static void widgetbase_draw(uiWidgetBase *wtb, uiWidgetColors *wcol)
{
	int j, a;
	
	glEnable(GL_BLEND);

	/* backdrop non AA */
	if(wtb->inner) {
		if(wcol->shaded==0) {
			if (wcol->alpha_check) {
				float inner_v_half[WIDGET_SIZE_MAX][2];
				float x_mid= 0.0f; /* used for dumb clamping of values */

				/* dark checkers */
				glColor4ub(UI_TRANSP_DARK, UI_TRANSP_DARK, UI_TRANSP_DARK, 255);
				glEnableClientState(GL_VERTEX_ARRAY);
				glVertexPointer(2, GL_FLOAT, 0, wtb->inner_v);
				glDrawArrays(GL_POLYGON, 0, wtb->totvert);
				glDisableClientState(GL_VERTEX_ARRAY);

				/* light checkers */
				glEnable(GL_POLYGON_STIPPLE);
				glColor4ub(UI_TRANSP_LIGHT, UI_TRANSP_LIGHT, UI_TRANSP_LIGHT, 255);
				glPolygonStipple(checker_stipple_sml);

				glEnableClientState(GL_VERTEX_ARRAY);
				glVertexPointer(2, GL_FLOAT, 0, wtb->inner_v);
				glDrawArrays(GL_POLYGON, 0, wtb->totvert);
				glDisableClientState(GL_VERTEX_ARRAY);

				glDisable(GL_POLYGON_STIPPLE);

				/* alpha fill */
				glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

				glColor4ubv((unsigned char*)wcol->inner);
				glEnableClientState(GL_VERTEX_ARRAY);

				for(a=0; a<wtb->totvert; a++) {
					x_mid += wtb->inner_v[a][0];
				}
				x_mid /= wtb->totvert;

				glVertexPointer(2, GL_FLOAT, 0, wtb->inner_v);
				glDrawArrays(GL_POLYGON, 0, wtb->totvert);
				glDisableClientState(GL_VERTEX_ARRAY);

				/* 1/2 solid color */
				glColor4ub(wcol->inner[0], wcol->inner[1], wcol->inner[2], 255);

				for(a=0; a<wtb->totvert; a++) {
					inner_v_half[a][0]= MIN2(wtb->inner_v[a][0], x_mid);
					inner_v_half[a][1]= wtb->inner_v[a][1];
				}

				glEnableClientState(GL_VERTEX_ARRAY);
				glVertexPointer(2, GL_FLOAT, 0, inner_v_half);
				glDrawArrays(GL_POLYGON, 0, wtb->totvert);
				glDisableClientState(GL_VERTEX_ARRAY);
			}
			else {
				/* simple fill */
				glColor4ubv((unsigned char*)wcol->inner);

				glEnableClientState(GL_VERTEX_ARRAY);
				glVertexPointer(2, GL_FLOAT, 0, wtb->inner_v);
				glDrawArrays(GL_POLYGON, 0, wtb->totvert);
				glDisableClientState(GL_VERTEX_ARRAY);
			}
		}
		else {
			char col1[4], col2[4];
			unsigned char col_array[WIDGET_SIZE_MAX * 4];
			unsigned char *col_pt= col_array;
			
			shadecolors4(col1, col2, wcol->inner, wcol->shadetop, wcol->shadedown);
			
			glShadeModel(GL_SMOOTH);
			for(a=0; a<wtb->totvert; a++, col_pt += 4) {
				round_box_shade_col4_r(col_pt, col1, col2, wtb->inner_uv[a][wtb->shadedir]);
			}

			glEnableClientState(GL_VERTEX_ARRAY);
			glEnableClientState(GL_COLOR_ARRAY);
			glVertexPointer(2, GL_FLOAT, 0, wtb->inner_v);
			glColorPointer(4, GL_UNSIGNED_BYTE, 0, col_array);
			glDrawArrays(GL_POLYGON, 0, wtb->totvert);
			glDisableClientState(GL_VERTEX_ARRAY);
			glDisableClientState(GL_COLOR_ARRAY);

			glShadeModel(GL_FLAT);
		}
	}
	
	/* for each AA step */
	if(wtb->outline) {
		float quad_strip[WIDGET_SIZE_MAX*2+2][2]; /* + 2 because the last pair is wrapped */
		float quad_strip_emboss[WIDGET_SIZE_MAX*2][2]; /* only for emboss */

		const unsigned char tcol[4] = {wcol->outline[0],
		                               wcol->outline[1],
		                               wcol->outline[2],
		                               UCHAR_MAX / WIDGET_AA_JITTER};

		widget_verts_to_quad_strip(wtb, wtb->totvert, quad_strip);

		if(wtb->emboss) {
			widget_verts_to_quad_strip_open(wtb, wtb->halfwayvert, quad_strip_emboss);
		}

		glEnableClientState(GL_VERTEX_ARRAY);

		for (j = 0; j < WIDGET_AA_JITTER; j++) {
			glTranslatef(1.0f * jit[j][0], 1.0f * jit[j][1], 0.0f);
			
			/* outline */
			glColor4ubv(tcol);

			glVertexPointer(2, GL_FLOAT, 0, quad_strip);
			glDrawArrays(GL_QUAD_STRIP, 0, wtb->totvert*2 + 2);
		
			/* emboss bottom shadow */
			if(wtb->emboss) {
				glColor4f(1.0f, 1.0f, 1.0f, 0.02f);

				glVertexPointer(2, GL_FLOAT, 0, quad_strip_emboss);
				glDrawArrays(GL_QUAD_STRIP, 0, wtb->halfwayvert*2);
			}
			
			glTranslatef(-1.0f * jit[j][0], -1.0f * jit[j][1], 0.0f);
		}

		glDisableClientState(GL_VERTEX_ARRAY);
	}
	
	/* decoration */
	if(wtb->tria1.tot || wtb->tria2.tot) {
		const unsigned char tcol[4] = {wcol->item[0],
		                               wcol->item[1],
		                               wcol->item[2],
		                               (unsigned char)((float)wcol->item[3] / WIDGET_AA_JITTER)};
		/* for each AA step */
		for (j = 0; j < WIDGET_AA_JITTER; j++) {
			glTranslatef(1.0f * jit[j][0], 1.0f * jit[j][1], 0.0f);

			if(wtb->tria1.tot) {
				glColor4ubv(tcol);
				widget_trias_draw(&wtb->tria1);
			}
			if(wtb->tria2.tot) {
				glColor4ubv(tcol);
				widget_trias_draw(&wtb->tria2);
			}
		
			glTranslatef(-1.0f * jit[j][0], -1.0f * jit[j][1], 0.0f);
		}
	}

	glDisable(GL_BLEND);
	
}

/* *********************** text/icon ************************************** */

#define PREVIEW_PAD	4

static void widget_draw_preview(BIFIconID icon, float UNUSED(alpha), rcti *rect)
{
	int w, h, size;

	if(icon==ICON_NONE)
		return;

	w = rect->xmax - rect->xmin;
	h = rect->ymax - rect->ymin;
	size = MIN2(w, h);
	size -= PREVIEW_PAD*2;	/* padding */

	if(size > 0) {
		int x = rect->xmin + w/2 - size/2;
		int y = rect->ymin + h/2 - size/2;

		UI_icon_draw_preview_aspect_size(x, y, icon, 1.0f, size);
	}
}


static int ui_but_draw_menu_icon(uiBut *but)
{
	return (but->flag & UI_ICON_SUBMENU) && (but->dt == UI_EMBOSSP);
}

/* icons have been standardized... and this call draws in untransformed coordinates */

static void widget_draw_icon(uiBut *but, BIFIconID icon, float alpha, rcti *rect)
{
	int xs=0, ys=0;
	float aspect, height;
	
	if (but->flag & UI_ICON_PREVIEW) {
		widget_draw_preview(icon, alpha, rect);
		return;
	}
	
	/* this icon doesn't need draw... */
	if(icon==ICON_BLANK1 && (but->flag & UI_ICON_SUBMENU)==0) return;
	
	/* we need aspect from block, for menus... these buttons are scaled in uiPositionBlock() */
	aspect= but->block->aspect;
	if(aspect != but->aspect) {
		/* prevent scaling up icon in pupmenu */
		if (aspect < 1.0f) {			
			height= UI_DPI_ICON_SIZE;
			aspect = 1.0f;
			
		}
		else 
			height= UI_DPI_ICON_SIZE/aspect;
	}
	else
		height= UI_DPI_ICON_SIZE;
	
	/* calculate blend color */
	if ELEM4(but->type, TOG, ROW, TOGN, LISTROW) {
		if(but->flag & UI_SELECT);
		else if(but->flag & UI_ACTIVE);
		else alpha= 0.5f;
	}
	
	/* extra feature allows more alpha blending */
	if(but->type==LABEL && but->a1==1.0f) alpha *= but->a2;
	
	glEnable(GL_BLEND);
	
	if(icon && icon!=ICON_BLANK1) {
		if(but->flag & UI_ICON_LEFT) {
			if (but->type==BUT_TOGDUAL) {
				if (but->drawstr[0]) {
					xs= rect->xmin-1;
				} else {
					xs= (rect->xmin+rect->xmax- height)/2;
				}
			}
			else if (but->block->flag & UI_BLOCK_LOOP) {
				if(but->type==SEARCH_MENU)
					xs= rect->xmin+4;
				else
					xs= rect->xmin+1;
			}
			else if ((but->type==ICONROW) || (but->type==ICONTEXTROW)) {
				xs= rect->xmin+3;
			}
			else {
				xs= rect->xmin+4;
			}
			ys= (rect->ymin+rect->ymax- height)/2;
		}
		else {
			xs= (rect->xmin+rect->xmax- height)/2;
			ys= (rect->ymin+rect->ymax- height)/2;
		}
		
		/* to indicate draggable */
		if(but->dragpoin && (but->flag & UI_ACTIVE)) {
			float rgb[3]= {1.25f, 1.25f, 1.25f};
			UI_icon_draw_aspect_color(xs, ys, icon, aspect, rgb);
		}
		else
			UI_icon_draw_aspect(xs, ys, icon, aspect, alpha);
	}

	if (ui_but_draw_menu_icon(but)) {
		xs= rect->xmax-17;
		ys= (rect->ymin+rect->ymax- height)/2;
		
		UI_icon_draw_aspect(xs, ys, ICON_RIGHTARROW_THIN, aspect, alpha);
	}
	
	glDisable(GL_BLEND);
}

static void ui_text_clip_give_prev_off(uiBut *but)
{
	char *prev_utf8 = BLI_str_find_prev_char_utf8(but->drawstr, but->drawstr + but->ofs);
	int bytes = but->drawstr + but->ofs - prev_utf8;

	but->ofs -= bytes;
}

static void ui_text_clip_give_next_off(uiBut *but)
{
	char *next_utf8 = BLI_str_find_next_char_utf8(but->drawstr + but->ofs, NULL);
	int bytes = next_utf8 - (but->drawstr + but->ofs);

	but->ofs += bytes;
}

/* sets but->ofs to make sure text is correctly visible */
static void ui_text_leftclip(uiFontStyle *fstyle, uiBut *but, rcti *rect)
{
	int border= (but->flag & UI_BUT_ALIGN_RIGHT)? 8: 10;
	int okwidth= rect->xmax-rect->xmin - border;
	
	if (but->flag & UI_HAS_ICON) okwidth -= UI_DPI_ICON_SIZE;
	
	/* need to set this first */
	uiStyleFontSet(fstyle);
	
	if (fstyle->kerning==1)	/* for BLF_width */
		BLF_enable(fstyle->uifont_id, BLF_KERNING_DEFAULT);

	/* if text editing we define ofs dynamically */
	if(but->editstr && but->pos >= 0) {
		if(but->ofs > but->pos)
			but->ofs= but->pos;

		if(BLF_width(fstyle->uifont_id, but->drawstr) <= okwidth)
			but->ofs = 0;
	}
	else but->ofs= 0;
	
	but->strwidth= BLF_width(fstyle->uifont_id, but->drawstr + but->ofs);
	
	while(but->strwidth > okwidth) {
		
		/* textbut exception, clip right when... */
		if(but->editstr && but->pos >= 0) {
			float width;
			char buf[UI_MAX_DRAW_STR];
			
			/* copy draw string */
			BLI_strncpy_utf8(buf, but->drawstr, sizeof(buf));
			/* string position of cursor */
			buf[but->pos]= 0;
			width= BLF_width(fstyle->uifont_id, buf+but->ofs);
			
			/* if cursor is at 20 pixels of right side button we clip left */
			if(width > okwidth-20)
				ui_text_clip_give_next_off(but);
			else {
				int len, bytes;
				/* shift string to the left */
				if(width < 20 && but->ofs > 0)
					ui_text_clip_give_prev_off(but);
				len= strlen(but->drawstr);
				bytes= BLI_str_utf8_size(BLI_str_find_prev_char_utf8(but->drawstr, but->drawstr + len));
				but->drawstr[ len-bytes ]= 0;
			}
		}
		else
			ui_text_clip_give_next_off(but);

		but->strwidth= BLF_width(fstyle->uifont_id, but->drawstr+but->ofs);
		
		if(but->strwidth < 10) break;
	}
	
	if (fstyle->kerning==1)
		BLF_disable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
}

static void ui_text_label_rightclip(uiFontStyle *fstyle, uiBut *but, rcti *rect)
{
	int border= (but->flag & UI_BUT_ALIGN_RIGHT)? 8: 10;
	int okwidth= rect->xmax-rect->xmin - border;
	char *cpoin=NULL;
	char *cpend = but->drawstr + strlen(but->drawstr);
	
	/* need to set this first */
	uiStyleFontSet(fstyle);
	
	if (fstyle->kerning==1)	/* for BLF_width */
		BLF_enable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
	
	but->strwidth= BLF_width(fstyle->uifont_id, but->drawstr);
	but->ofs= 0;
	
	/* find the space after ':' separator */
	cpoin= strrchr(but->drawstr, ':');
	
	if (cpoin && (cpoin < cpend-2)) {
		char *cp2 = cpoin;
		
		/* chop off the leading text, starting from the right */
		while (but->strwidth > okwidth && cp2 > but->drawstr) {
			int bytes = BLI_str_utf8_size(cp2);
			if (bytes < 0)
				bytes = 1;

			/* shift the text after and including cp2 back by 1 char, +1 to include null terminator */
			memmove(cp2-bytes, cp2, strlen(cp2)+1);
			cp2-=bytes;
			
			but->strwidth= BLF_width(fstyle->uifont_id, but->drawstr+but->ofs);
			if(but->strwidth < 10) break;
		}
	
	
		/* after the leading text is gone, chop off the : and following space, with ofs */
		while ((but->strwidth > okwidth) && (but->ofs < 2))
		{
			ui_text_clip_give_next_off(but);
			but->strwidth= BLF_width(fstyle->uifont_id, but->drawstr+but->ofs);
			if(but->strwidth < 10) break;
		}
		
	}

	/* once the label's gone, chop off the least significant digits */
	while(but->strwidth > okwidth ) {
		int len= strlen(but->drawstr);
		int bytes= BLI_str_utf8_size(BLI_str_find_prev_char_utf8(but->drawstr, but->drawstr + len));
		if (bytes < 0)
			bytes = 1;

		but->drawstr[ len-bytes ]= 0;
		
		but->strwidth= BLF_width(fstyle->uifont_id, but->drawstr+but->ofs);
		if(but->strwidth < 10) break;
	}
	
	if (fstyle->kerning==1)
		BLF_disable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
}


static void widget_draw_text(uiFontStyle *fstyle, uiWidgetColors *wcol, uiBut *but, rcti *rect)
{
//	int transopts;
	char *cpoin = NULL;
	
	/* for underline drawing */
	float font_xofs, font_yofs;

	uiStyleFontSet(fstyle);
	
	if(but->editstr || (but->flag & UI_TEXT_LEFT))
		fstyle->align= UI_STYLE_TEXT_LEFT;
	else
		fstyle->align= UI_STYLE_TEXT_CENTER;			
	
	if (fstyle->kerning==1)	/* for BLF_width */
		BLF_enable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
	
	/* text button selection and cursor */
	if(but->editstr && but->pos != -1) {
		short t=0, pos=0, ch;
		short selsta_tmp, selend_tmp, selsta_draw, selwidth_draw;

		if ((but->selend - but->selsta) > 0) {
			/* text button selection */
			selsta_tmp = but->selsta;
			selend_tmp = but->selend;
			
			if(but->drawstr[0]!=0) {

				if (but->selsta >= but->ofs) {
					ch= but->drawstr[selsta_tmp];
					but->drawstr[selsta_tmp]= 0;
					
					selsta_draw = BLF_width(fstyle->uifont_id, but->drawstr+but->ofs);
					
					but->drawstr[selsta_tmp]= ch;
				} else
					selsta_draw = 0;
				
				ch= but->drawstr[selend_tmp];
				but->drawstr[selend_tmp]= 0;
				
				selwidth_draw = BLF_width(fstyle->uifont_id, but->drawstr+but->ofs);
				
				but->drawstr[selend_tmp]= ch;

				glColor3ubv((unsigned char*)wcol->item);
				glRects(rect->xmin+selsta_draw, rect->ymin+2, rect->xmin+selwidth_draw, rect->ymax-2);
			}
		} else {
			/* text cursor */
			pos= but->pos;
			if(pos >= but->ofs) {
				if(but->drawstr[0]!=0) {
					ch= but->drawstr[pos];
					but->drawstr[pos]= 0;
					
					t= BLF_width(fstyle->uifont_id, but->drawstr+but->ofs) / but->aspect;
					
					but->drawstr[pos]= ch;
				}

				glColor3f(0.20, 0.6, 0.9);
				glRects(rect->xmin+t, rect->ymin+2, rect->xmin+t+2, rect->ymax-2);
			}
		}
	}
	
	if (fstyle->kerning == 1)
		BLF_disable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
	
	//	ui_rasterpos_safe(x, y, but->aspect);
//	if(but->type==IDPOIN) transopts= 0;	// no translation, of course!
//	else transopts= ui_translate_buttons();
	
	/* cut string in 2 parts - only for menu entries */
	if((but->block->flag & UI_BLOCK_LOOP)) {
		if(ELEM5(but->type, SLI, NUM, TEX, NUMSLI, NUMABS)==0) {
			cpoin= strchr(but->drawstr, '|');
			if(cpoin) *cpoin= 0;		
		}
	}
	
	glColor3ubv((unsigned char*)wcol->text);

	uiStyleFontDrawExt(fstyle, rect, but->drawstr+but->ofs, &font_xofs, &font_yofs);

	if(but->menu_key != '\0') {
		char fixedbuf[128];
		char *str;

		BLI_strncpy(fixedbuf, but->drawstr + but->ofs, sizeof(fixedbuf));

		str= strchr(fixedbuf, but->menu_key-32); /* upper case */
		if(str==NULL)
			str= strchr(fixedbuf, but->menu_key);

		if(str) {
			int ul_index= -1;
			float ul_advance;

			ul_index= (int)(str - fixedbuf);

			if (fstyle->kerning == 1) {
				BLF_enable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
			}

			fixedbuf[ul_index]= '\0';
			ul_advance= BLF_width(fstyle->uifont_id, fixedbuf);

			BLF_position(fstyle->uifont_id, rect->xmin+font_xofs + ul_advance, rect->ymin+font_yofs, 0.0f);
			BLF_draw(fstyle->uifont_id, "_", 2);

			if (fstyle->kerning == 1) {
				BLF_disable(fstyle->uifont_id, BLF_KERNING_DEFAULT);
			}
		}
	}

	/* part text right aligned */
	if(cpoin) {
		fstyle->align= UI_STYLE_TEXT_RIGHT;
		rect->xmax -= ui_but_draw_menu_icon(but) ? UI_DPI_ICON_SIZE : 5;
		uiStyleFontDraw(fstyle, rect, cpoin+1);
		*cpoin= '|';
	}
}

/* draws text and icons for buttons */
static void widget_draw_text_icon(uiFontStyle *fstyle, uiWidgetColors *wcol, uiBut *but, rcti *rect)
{
	
	if(but==NULL) return;

	/* clip but->drawstr to fit in available space */
	if (but->editstr && but->pos >= 0) {
		ui_text_leftclip(fstyle, but, rect);
	}
	else if (ELEM4(but->type, NUM, NUMABS, NUMSLI, SLI)) {
		ui_text_label_rightclip(fstyle, but, rect);
	}
	else if (ELEM(but->type, TEX, SEARCH_MENU)) {
		ui_text_leftclip(fstyle, but, rect);
	}
	else if ((but->block->flag & UI_BLOCK_LOOP) && (but->type == BUT)) {
		ui_text_leftclip(fstyle, but, rect);
	}
	else but->ofs= 0;
	
	/* check for button text label */
	if (but->type == ICONTEXTROW) {
		widget_draw_icon(but, (BIFIconID) (but->icon+but->iconadd), 1.0f, rect);
	}
	else {
				
		if(but->type==BUT_TOGDUAL) {
			int dualset= 0;
			if(but->pointype==SHO)
				dualset= BTST( *(((short *)but->poin)+1), but->bitnr);
			else if(but->pointype==INT)
				dualset= BTST( *(((int *)but->poin)+1), but->bitnr);
			
			widget_draw_icon(but, ICON_DOT, dualset?1.0f:0.25f, rect);
		}
		else if(but->type==MENU && (but->flag & UI_BUT_NODE_LINK)) {
			int tmp = rect->xmin;
			rect->xmin = rect->xmax - (rect->ymax - rect->ymin) - 1;
			widget_draw_icon(but, ICON_LAYER_USED, 1.0f, rect);
			rect->xmin = tmp;
		}
		
		/* If there's an icon too (made with uiDefIconTextBut) then draw the icon
		 * and offset the text label to accommodate it */
		
		if (but->flag & UI_HAS_ICON) {
			widget_draw_icon(but, but->icon+but->iconadd, 1.0f, rect);
			
			rect->xmin += (int)((float)UI_icon_get_width(but->icon+but->iconadd) * UI_DPI_ICON_FAC);
			
			if(but->editstr || (but->flag & UI_TEXT_LEFT)) 
				rect->xmin += 5;
		}
		else if((but->flag & UI_TEXT_LEFT)) 
			rect->xmin += 5;
		
		/* always draw text for textbutton cursor */
		widget_draw_text(fstyle, wcol, but, rect);

	}
}



/* *********************** widget types ************************************* */


/* uiWidgetStateColors
 *     char inner_anim[4];
 *     char inner_anim_sel[4];
 *     char inner_key[4];
 *     char inner_key_sel[4];
 *     char inner_driven[4];
 *     char inner_driven_sel[4];
 *     float blend;
 */

static struct uiWidgetStateColors wcol_state_colors= {
	{115, 190, 76, 255},
	{90, 166, 51, 255},
	{240, 235, 100, 255},
	{215, 211, 75, 255},
	{180, 0, 255, 255},
	{153, 0, 230, 255},
	0.5f, 0.0f
};

/* uiWidgetColors
 *     float outline[3];
 *     float inner[4];
 *     float inner_sel[4];
 *     float item[3];
 *     float text[3];
 *     float text_sel[3];
 *     
 *     short shaded;
 *     float shadetop, shadedown;
 */

static struct uiWidgetColors wcol_num= {
	{25, 25, 25, 255},
	{180, 180, 180, 255},
	{153, 153, 153, 255},
	{90, 90, 90, 255},
	
	{0, 0, 0, 255},
	{255, 255, 255, 255},
	
	1,
	-20, 0
};

static struct uiWidgetColors wcol_numslider= {
	{25, 25, 25, 255},
	{180, 180, 180, 255},
	{153, 153, 153, 255},
	{128, 128, 128, 255},
	
	{0, 0, 0, 255},
	{255, 255, 255, 255},
	
	1,
	-20, 0
};

static struct uiWidgetColors wcol_text= {
	{25, 25, 25, 255},
	{153, 153, 153, 255},
	{153, 153, 153, 255},
	{90, 90, 90, 255},
	
	{0, 0, 0, 255},
	{255, 255, 255, 255},
	
	1,
	0, 25
};

static struct uiWidgetColors wcol_option= {
	{0, 0, 0, 255},
	{70, 70, 70, 255},
	{70, 70, 70, 255},
	{255, 255, 255, 255},
	
	{0, 0, 0, 255},
	{255, 255, 255, 255},
	
	1,
	15, -15
};

/* button that shows popup */
static struct uiWidgetColors wcol_menu= {
	{0, 0, 0, 255},
	{70, 70, 70, 255},
	{70, 70, 70, 255},
	{255, 255, 255, 255},
	
	{255, 255, 255, 255},
	{204, 204, 204, 255},
	
	1,
	15, -15
};

/* button that starts pulldown */
static struct uiWidgetColors wcol_pulldown= {
	{0, 0, 0, 255},
	{63, 63, 63, 255},
	{86, 128, 194, 255},
	{255, 255, 255, 255},
	
	{0, 0, 0, 255},
	{0, 0, 0, 255},
	
	0,
	25, -20
};

/* button inside menu */
static struct uiWidgetColors wcol_menu_item= {
	{0, 0, 0, 255},
	{0, 0, 0, 0},
	{86, 128, 194, 255},
	{172, 172, 172, 128},
	
	{255, 255, 255, 255},
	{0, 0, 0, 255},
	
	1,
	38, 0
};

/* backdrop menu + title text color */
static struct uiWidgetColors wcol_menu_back= {
	{0, 0, 0, 255},
	{25, 25, 25, 230},
	{45, 45, 45, 230},
	{100, 100, 100, 255},
	
	{160, 160, 160, 255},
	{255, 255, 255, 255},
	
	0,
	25, -20
};

/* tooltip colour */
static struct uiWidgetColors wcol_tooltip= {
	{0, 0, 0, 255},
	{25, 25, 25, 230},
	{45, 45, 45, 230},
	{100, 100, 100, 255},

	{160, 160, 160, 255},
	{255, 255, 255, 255},

	0,
	25, -20
};

static struct uiWidgetColors wcol_radio= {
	{0, 0, 0, 255},
	{70, 70, 70, 255},
	{86, 128, 194, 255},
	{255, 255, 255, 255},
	
	{255, 255, 255, 255},
	{0, 0, 0, 255},
	
	1,
	15, -15
};

static struct uiWidgetColors wcol_regular= {
	{25, 25, 25, 255},
	{153, 153, 153, 255},
	{100, 100, 100, 255},
	{25, 25, 25, 255},
	
	{0, 0, 0, 255},
	{255, 255, 255, 255},
	
	0,
	0, 0
};

static struct uiWidgetColors wcol_tool= {
	{25, 25, 25, 255},
	{153, 153, 153, 255},
	{100, 100, 100, 255},
	{25, 25, 25, 255},
	
	{0, 0, 0, 255},
	{255, 255, 255, 255},
	
	1,
	15, -15
};

static struct uiWidgetColors wcol_box= {
	{25, 25, 25, 255},
	{128, 128, 128, 255},
	{100, 100, 100, 255},
	{25, 25, 25, 255},
	
	{0, 0, 0, 255},
	{255, 255, 255, 255},
	
	0,
	0, 0
};

static struct uiWidgetColors wcol_toggle= {
	{25, 25, 25, 255},
	{153, 153, 153, 255},
	{100, 100, 100, 255},
	{25, 25, 25, 255},
	
	{0, 0, 0, 255},
	{255, 255, 255, 255},
	
	0,
	0, 0
};

static struct uiWidgetColors wcol_scroll= {
	{50, 50, 50, 180},
	{80, 80, 80, 180},
	{100, 100, 100, 180},
	{128, 128, 128, 255},
	
	{0, 0, 0, 255},
	{255, 255, 255, 255},
	
	1,
	5, -5
};

static struct uiWidgetColors wcol_progress= {
	{0, 0, 0, 255},
	{190, 190, 190, 255},
	{100, 100, 100, 180},
	{68, 68, 68, 255},
	
	{0, 0, 0, 255},
	{255, 255, 255, 255},
	
	0,
	0, 0
};

static struct uiWidgetColors wcol_list_item= {
	{0, 0, 0, 255},
	{0, 0, 0, 0},
	{86, 128, 194, 255},
	{0, 0, 0, 255},
	
	{0, 0, 0, 255},
	{0, 0, 0, 255},
	
	0,
	0, 0
};

/* free wcol struct to play with */
static struct uiWidgetColors wcol_tmp= {
	{0, 0, 0, 255},
	{128, 128, 128, 255},
	{100, 100, 100, 255},
	{25, 25, 25, 255},
	
	{0, 0, 0, 255},
	{255, 255, 255, 255},
	
	0,
	0, 0
};


/* called for theme init (new theme) and versions */
void ui_widget_color_init(ThemeUI *tui)
{
	tui->wcol_regular= wcol_regular;
	tui->wcol_tool= wcol_tool;
	tui->wcol_text= wcol_text;
	tui->wcol_radio= wcol_radio;
	tui->wcol_option= wcol_option;
	tui->wcol_toggle= wcol_toggle;
	tui->wcol_num= wcol_num;
	tui->wcol_numslider= wcol_numslider;
	tui->wcol_menu= wcol_menu;
	tui->wcol_pulldown= wcol_pulldown;
	tui->wcol_menu_back= wcol_menu_back;
	tui->wcol_tooltip = wcol_tooltip;
	tui->wcol_menu_item= wcol_menu_item;
	tui->wcol_box= wcol_box;
	tui->wcol_scroll= wcol_scroll;
	tui->wcol_list_item= wcol_list_item;
	tui->wcol_progress= wcol_progress;

	tui->wcol_state= wcol_state_colors;
}

/* ************ button callbacks, state ***************** */

static void widget_state_blend(char cp[3], const char cpstate[3], const float fac)
{
	if(fac != 0.0f) {
		cp[0]= (int)((1.0f-fac)*cp[0] + fac*cpstate[0]);
		cp[1]= (int)((1.0f-fac)*cp[1] + fac*cpstate[1]);
		cp[2]= (int)((1.0f-fac)*cp[2] + fac*cpstate[2]);
	}
}

/* copy colors from theme, and set changes in it based on state */
static void widget_state(uiWidgetType *wt, int state)
{
	uiWidgetStateColors *wcol_state= wt->wcol_state;

	wt->wcol= *(wt->wcol_theme);
	
	if(state & UI_SELECT) {
		copy_v4_v4_char(wt->wcol.inner, wt->wcol.inner_sel);

		if(state & UI_BUT_ANIMATED_KEY)
			widget_state_blend(wt->wcol.inner, wcol_state->inner_key_sel, wcol_state->blend);
		else if(state & UI_BUT_ANIMATED)
			widget_state_blend(wt->wcol.inner, wcol_state->inner_anim_sel, wcol_state->blend);
		else if(state & UI_BUT_DRIVEN)
			widget_state_blend(wt->wcol.inner, wcol_state->inner_driven_sel, wcol_state->blend);

		copy_v3_v3_char(wt->wcol.text, wt->wcol.text_sel);
		
		if(state & UI_SELECT)
			SWAP(short, wt->wcol.shadetop, wt->wcol.shadedown);
	}
	else {
		if(state & UI_BUT_ANIMATED_KEY)
			widget_state_blend(wt->wcol.inner, wcol_state->inner_key, wcol_state->blend);
		else if(state & UI_BUT_ANIMATED)
			widget_state_blend(wt->wcol.inner, wcol_state->inner_anim, wcol_state->blend);
		else if(state & UI_BUT_DRIVEN)
			widget_state_blend(wt->wcol.inner, wcol_state->inner_driven, wcol_state->blend);

		if(state & UI_ACTIVE) { /* mouse over? */
			wt->wcol.inner[0]= wt->wcol.inner[0]>=240? 255 : wt->wcol.inner[0]+15;
			wt->wcol.inner[1]= wt->wcol.inner[1]>=240? 255 : wt->wcol.inner[1]+15;
			wt->wcol.inner[2]= wt->wcol.inner[2]>=240? 255 : wt->wcol.inner[2]+15;
		}
	}

	if(state & UI_BUT_REDALERT) {
		char red[4]= {255, 0, 0};
		widget_state_blend(wt->wcol.inner, red, 0.4f);
	}
	if(state & UI_BUT_NODE_ACTIVE) {
		char blue[4]= {86, 128, 194};
		widget_state_blend(wt->wcol.inner, blue, 0.3f);
	}
}

/* sliders use special hack which sets 'item' as inner when drawing filling */
static void widget_state_numslider(uiWidgetType *wt, int state)
{
	uiWidgetStateColors *wcol_state= wt->wcol_state;
	float blend= wcol_state->blend - 0.2f; // XXX special tweak to make sure that bar will still be visible

	/* call this for option button */
	widget_state(wt, state);
	
	/* now, set the inner-part so that it reflects state settings too */
	// TODO: maybe we should have separate settings for the blending colors used for this case?
	if(state & UI_SELECT) {
		
		if(state & UI_BUT_ANIMATED_KEY)
			widget_state_blend(wt->wcol.item, wcol_state->inner_key_sel, blend);
		else if(state & UI_BUT_ANIMATED)
			widget_state_blend(wt->wcol.item, wcol_state->inner_anim_sel, blend);
		else if(state & UI_BUT_DRIVEN)
			widget_state_blend(wt->wcol.item, wcol_state->inner_driven_sel, blend);
		
		if(state & UI_SELECT)
			SWAP(short, wt->wcol.shadetop, wt->wcol.shadedown);
	}
	else {
		if(state & UI_BUT_ANIMATED_KEY)
			widget_state_blend(wt->wcol.item, wcol_state->inner_key, blend);
		else if(state & UI_BUT_ANIMATED)
			widget_state_blend(wt->wcol.item, wcol_state->inner_anim, blend);
		else if(state & UI_BUT_DRIVEN)
			widget_state_blend(wt->wcol.item, wcol_state->inner_driven, blend);
	}
}

/* labels use theme colors for text */
static void widget_state_label(uiWidgetType *wt, int state)
{
	/* call this for option button */
	widget_state(wt, state);

	if(state & UI_SELECT)
		UI_GetThemeColor4ubv(TH_TEXT_HI, (unsigned char *)wt->wcol.text);
	else
		UI_GetThemeColor4ubv(TH_TEXT, (unsigned char *)wt->wcol.text);
	
}

/* labels use theme colors for text */
static void widget_state_option_menu(uiWidgetType *wt, int state)
{
	
	/* call this for option button */
	widget_state(wt, state);
	
	/* if not selected we get theme from menu back */
	if(state & UI_SELECT)
		UI_GetThemeColor4ubv(TH_TEXT_HI, (unsigned char *)wt->wcol.text);
	else {
		bTheme *btheme= UI_GetTheme(); /* XXX */

		copy_v3_v3_char(wt->wcol.text, btheme->tui.wcol_menu_back.text);
	}
}


static void widget_state_nothing(uiWidgetType *wt, int UNUSED(state))
{
	wt->wcol= *(wt->wcol_theme);
}	

/* special case, button that calls pulldown */
static void widget_state_pulldown(uiWidgetType *wt, int state)
{
	wt->wcol= *(wt->wcol_theme);
	
	copy_v4_v4_char(wt->wcol.inner, wt->wcol.inner_sel);
	copy_v3_v3_char(wt->wcol.outline, wt->wcol.inner);

	if(state & UI_ACTIVE)
		copy_v3_v3_char(wt->wcol.text, wt->wcol.text_sel);
}

/* special case, menu items */
static void widget_state_menu_item(uiWidgetType *wt, int state)
{
	wt->wcol= *(wt->wcol_theme);
	
	if(state & (UI_BUT_DISABLED|UI_BUT_INACTIVE)) {
		wt->wcol.text[0]= 0.5f*(wt->wcol.text[0]+wt->wcol.text_sel[0]);
		wt->wcol.text[1]= 0.5f*(wt->wcol.text[1]+wt->wcol.text_sel[1]);
		wt->wcol.text[2]= 0.5f*(wt->wcol.text[2]+wt->wcol.text_sel[2]);
	}
	else if(state & UI_ACTIVE) {
		copy_v4_v4_char(wt->wcol.inner, wt->wcol.inner_sel);
		copy_v3_v3_char(wt->wcol.text, wt->wcol.text_sel);
	}
}


/* ************ menu backdrop ************************* */

/* outside of rect, rad to left/bottom/right */
static void widget_softshadow(rcti *rect, int roundboxalign, float radin, float radout)
{
	uiWidgetBase wtb;
	rcti rect1= *rect;
	float alpha, alphastep;
	int step, totvert;
	float quad_strip[WIDGET_SIZE_MAX*2][2];
	
	/* prevent tooltips to not show round shadow */
	if( 2.0f*radout > 0.2f*(rect1.ymax-rect1.ymin) )
		rect1.ymax -= 0.2f*(rect1.ymax-rect1.ymin);
	else
		rect1.ymax -= 2.0f*radout;
	
	/* inner part */
	totvert= round_box_shadow_edges(wtb.inner_v, &rect1, radin, roundboxalign & (UI_CNR_BOTTOM_RIGHT | UI_CNR_BOTTOM_LEFT), 0.0f);

	/* inverse linear shadow alpha */
	alpha= 0.15;
	alphastep= 0.67;
	
	glEnableClientState(GL_VERTEX_ARRAY);

	for(step= 1; step<=radout; step++, alpha*=alphastep) {
		round_box_shadow_edges(wtb.outer_v, &rect1, radin, UI_CNR_ALL, (float)step);
		
		glColor4f(0.0f, 0.0f, 0.0f, alpha);

		widget_verts_to_quad_strip_open(&wtb, totvert, quad_strip);

		glVertexPointer(2, GL_FLOAT, 0, quad_strip);
		glDrawArrays(GL_QUAD_STRIP, 0, totvert*2);
	}

	glDisableClientState(GL_VERTEX_ARRAY);
}

static void widget_menu_back(uiWidgetColors *wcol, rcti *rect, int flag, int direction)
{
	uiWidgetBase wtb;
	int roundboxalign= UI_CNR_ALL;
	
	widget_init(&wtb);
	
	/* menu is 2nd level or deeper */
	if (flag & UI_BLOCK_POPUP) {
		//rect->ymin -= 4.0;
		//rect->ymax += 4.0;
	}
	else if (direction == UI_DOWN) {
		roundboxalign= (UI_CNR_BOTTOM_RIGHT | UI_CNR_BOTTOM_LEFT);
		rect->ymin -= 4.0;
	} 
	else if (direction == UI_TOP) {
		roundboxalign= UI_CNR_TOP_LEFT | UI_CNR_TOP_RIGHT;
		rect->ymax += 4.0;
	}
	
	glEnable(GL_BLEND);
	widget_softshadow(rect, roundboxalign, 5.0f, 8.0f);
	
	round_box_edges(&wtb, roundboxalign, rect, 5.0f);
	wtb.emboss= 0;
	widgetbase_draw(&wtb, wcol);
	
	glDisable(GL_BLEND);
}


static void ui_hsv_cursor(float x, float y)
{
	
	glPushMatrix();
	glTranslatef(x, y, 0.0f);
	
	glColor3f(1.0f, 1.0f, 1.0f);
	glutil_draw_filled_arc(0.0f, M_PI*2.0, 3.0f, 8);
	
	glEnable(GL_BLEND);
	glEnable(GL_LINE_SMOOTH );
	glColor3f(0.0f, 0.0f, 0.0f);
	glutil_draw_lined_arc(0.0f, M_PI*2.0, 3.0f, 12);
	glDisable(GL_BLEND);
	glDisable(GL_LINE_SMOOTH );
	
	glPopMatrix();
	
}

void ui_hsvcircle_vals_from_pos(float *valrad, float *valdist, rcti *rect, float mx, float my)
{
	/* duplication of code... well, simple is better now */
	float centx= (float)(rect->xmin + rect->xmax)/2;
	float centy= (float)(rect->ymin + rect->ymax)/2;
	float radius, dist;
	
	if( rect->xmax-rect->xmin > rect->ymax-rect->ymin )
		radius= (float)(rect->ymax - rect->ymin)/2; 
	else
		radius= (float)(rect->xmax - rect->xmin)/2; 

	mx-= centx;
	my-= centy;
	dist= sqrt( mx*mx + my*my);
	if(dist < radius)
		*valdist= dist/radius;
	else
		*valdist= 1.0f;
	
	*valrad= atan2f(mx, my)/(2.0f*(float)M_PI) + 0.5f;
}

static void ui_draw_but_HSVCIRCLE(uiBut *but, uiWidgetColors *wcol, rcti *rect)
{
	/* gouraud triangle fan */
	float radstep, ang= 0.0f;
	float centx, centy, radius, cursor_radius;
	float rgb[3], hsvo[3], hsv[3], col[3], colcent[3];
	int a, tot= 32;
	int color_profile = but->block->color_profile;
	
	if (but->rnaprop && RNA_property_subtype(but->rnaprop) == PROP_COLOR_GAMMA)
		color_profile = BLI_PR_NONE;
	
	radstep= 2.0f*(float)M_PI/(float)tot;
	centx= (float)(rect->xmin + rect->xmax)/2;
	centy= (float)(rect->ymin + rect->ymax)/2;
	
	if( rect->xmax-rect->xmin > rect->ymax-rect->ymin )
		radius= (float)(rect->ymax - rect->ymin)/2; 
	else
		radius= (float)(rect->xmax - rect->xmin)/2; 
	
	/* color */
	ui_get_but_vectorf(but, rgb);
	copy_v3_v3(hsv, ui_block_hsv_get(but->block));
	rgb_to_hsv_compat(rgb[0], rgb[1], rgb[2], hsv, hsv+1, hsv+2);
	copy_v3_v3(hsvo, hsv);
	
	/* exception: if 'lock' is set
	 * lock the value of the color wheel to 1.
	 * Useful for color correction tools where you're only interested in hue. */
	if (but->flag & UI_BUT_COLOR_LOCK)
		hsv[2] = 1.f;
	else if (color_profile)
		hsv[2] = linearrgb_to_srgb(hsv[2]);
	
	hsv_to_rgb(0.f, 0.f, hsv[2], colcent, colcent+1, colcent+2);
	
	glShadeModel(GL_SMOOTH);

	glBegin(GL_TRIANGLE_FAN);
	glColor3fv(colcent);
	glVertex2f( centx, centy);
	
	for(a=0; a<=tot; a++, ang+=radstep) {
		float si= sin(ang);
		float co= cos(ang);
		
		ui_hsvcircle_vals_from_pos(hsv, hsv+1, rect, centx + co*radius, centy + si*radius);
		CLAMP(hsv[2], 0.0f, 1.0f); /* for display only */

		hsv_to_rgb(hsv[0], hsv[1], hsv[2], col, col+1, col+2);
		glColor3fv(col);
		glVertex2f( centx + co*radius, centy + si*radius);
	}
	glEnd();
	
	glShadeModel(GL_FLAT);
	
	/* fully rounded outline */
	glPushMatrix();
	glTranslatef(centx, centy, 0.0f);
	glEnable(GL_BLEND);
	glEnable(GL_LINE_SMOOTH );
	glColor3ubv((unsigned char*)wcol->outline);
	glutil_draw_lined_arc(0.0f, M_PI*2.0, radius, tot + 1);
	glDisable(GL_BLEND);
	glDisable(GL_LINE_SMOOTH );
	glPopMatrix();

	/* cursor */
	ang= 2.0f*(float)M_PI*hsvo[0] + 0.5f*(float)M_PI;

	if(but->flag & UI_BUT_COLOR_CUBIC)
		cursor_radius = (1.0f - powf(1.0f - hsvo[1], 3.0f));
	else
		cursor_radius = hsvo[1];

	radius= CLAMPIS(cursor_radius, 0.0f, 1.0f) * radius;
	ui_hsv_cursor(centx + cosf(-ang)*radius, centy + sinf(-ang)*radius);
}

/* ************ custom buttons, old stuff ************** */

/* draws in resolution of 20x4 colors */
void ui_draw_gradient(rcti *rect, const float hsv[3], int type, float alpha)
{
	int a;
	float h= hsv[0], s= hsv[1], v= hsv[2];
	float dx, dy, sx1, sx2, sy;
	float col0[4][3];	// left half, rect bottom to top
	float col1[4][3];	// right half, rect bottom to top

	/* draw series of gouraud rects */
	glShadeModel(GL_SMOOTH);
	
	switch(type) {
		case UI_GRAD_SV:
			hsv_to_rgb(h, 0.0, 0.0,   &col1[0][0], &col1[0][1], &col1[0][2]);
			hsv_to_rgb(h, 0.333, 0.0, &col1[1][0], &col1[1][1], &col1[1][2]);
			hsv_to_rgb(h, 0.666, 0.0, &col1[2][0], &col1[2][1], &col1[2][2]);
			hsv_to_rgb(h, 1.0, 0.0,   &col1[3][0], &col1[3][1], &col1[3][2]);
			break;
		case UI_GRAD_HV:
			hsv_to_rgb(0.0, s, 0.0,   &col1[0][0], &col1[0][1], &col1[0][2]);
			hsv_to_rgb(0.0, s, 0.333, &col1[1][0], &col1[1][1], &col1[1][2]);
			hsv_to_rgb(0.0, s, 0.666, &col1[2][0], &col1[2][1], &col1[2][2]);
			hsv_to_rgb(0.0, s, 1.0,   &col1[3][0], &col1[3][1], &col1[3][2]);
			break;
		case UI_GRAD_HS:
			hsv_to_rgb(0.0, 0.0, v,   &col1[0][0], &col1[0][1], &col1[0][2]);
			hsv_to_rgb(0.0, 0.333, v, &col1[1][0], &col1[1][1], &col1[1][2]);
			hsv_to_rgb(0.0, 0.666, v, &col1[2][0], &col1[2][1], &col1[2][2]);
			hsv_to_rgb(0.0, 1.0, v,   &col1[3][0], &col1[3][1], &col1[3][2]);
			break;
		case UI_GRAD_H:
			hsv_to_rgb(0.0, 1.0, 1.0,   &col1[0][0], &col1[0][1], &col1[0][2]);
			copy_v3_v3(col1[1], col1[0]);
			copy_v3_v3(col1[2], col1[0]);
			copy_v3_v3(col1[3], col1[0]);
			break;
		case UI_GRAD_S:
			hsv_to_rgb(1.0, 0.0, 1.0,   &col1[1][0], &col1[1][1], &col1[1][2]);
			copy_v3_v3(col1[0], col1[1]);
			copy_v3_v3(col1[2], col1[1]);
			copy_v3_v3(col1[3], col1[1]);
			break;
		case UI_GRAD_V:
			hsv_to_rgb(1.0, 1.0, 0.0,   &col1[2][0], &col1[2][1], &col1[2][2]);
			copy_v3_v3(col1[0], col1[2]);
			copy_v3_v3(col1[1], col1[2]);
			copy_v3_v3(col1[3], col1[2]);
			break;
		default:
			assert(!"invalid 'type' argument");
			hsv_to_rgb(1.0, 1.0, 1.0,   &col1[2][0], &col1[2][1], &col1[2][2]);
			copy_v3_v3(col1[0], col1[2]);
			copy_v3_v3(col1[1], col1[2]);
			copy_v3_v3(col1[3], col1[2]);
	}
	
	/* old below */
	
	for(dx=0.0f; dx<1.0f; dx+= 0.05f) {
		// previous color
		copy_v3_v3(col0[0], col1[0]);
		copy_v3_v3(col0[1], col1[1]);
		copy_v3_v3(col0[2], col1[2]);
		copy_v3_v3(col0[3], col1[3]);
		
		// new color
		switch(type) {
			case UI_GRAD_SV:
				hsv_to_rgb(h, 0.0, dx,   &col1[0][0], &col1[0][1], &col1[0][2]);
				hsv_to_rgb(h, 0.333, dx, &col1[1][0], &col1[1][1], &col1[1][2]);
				hsv_to_rgb(h, 0.666, dx, &col1[2][0], &col1[2][1], &col1[2][2]);
				hsv_to_rgb(h, 1.0, dx,   &col1[3][0], &col1[3][1], &col1[3][2]);
				break;
			case UI_GRAD_HV:
				hsv_to_rgb(dx, s, 0.0,   &col1[0][0], &col1[0][1], &col1[0][2]);
				hsv_to_rgb(dx, s, 0.333, &col1[1][0], &col1[1][1], &col1[1][2]);
				hsv_to_rgb(dx, s, 0.666, &col1[2][0], &col1[2][1], &col1[2][2]);
				hsv_to_rgb(dx, s, 1.0,   &col1[3][0], &col1[3][1], &col1[3][2]);
				break;
			case UI_GRAD_HS:
				hsv_to_rgb(dx, 0.0, v,   &col1[0][0], &col1[0][1], &col1[0][2]);
				hsv_to_rgb(dx, 0.333, v, &col1[1][0], &col1[1][1], &col1[1][2]);
				hsv_to_rgb(dx, 0.666, v, &col1[2][0], &col1[2][1], &col1[2][2]);
				hsv_to_rgb(dx, 1.0, v,   &col1[3][0], &col1[3][1], &col1[3][2]);
				break;
			case UI_GRAD_H:
				hsv_to_rgb(dx, 1.0, 1.0,   &col1[0][0], &col1[0][1], &col1[0][2]);
				copy_v3_v3(col1[1], col1[0]);
				copy_v3_v3(col1[2], col1[0]);
				copy_v3_v3(col1[3], col1[0]);
				break;
			case UI_GRAD_S:
				hsv_to_rgb(h, dx, 1.0,   &col1[1][0], &col1[1][1], &col1[1][2]);
				copy_v3_v3(col1[0], col1[1]);
				copy_v3_v3(col1[2], col1[1]);
				copy_v3_v3(col1[3], col1[1]);
				break;
			case UI_GRAD_V:
				hsv_to_rgb(h, 1.0, dx,   &col1[2][0], &col1[2][1], &col1[2][2]);
				copy_v3_v3(col1[0], col1[2]);
				copy_v3_v3(col1[1], col1[2]);
				copy_v3_v3(col1[3], col1[2]);
				break;
		}
		
		// rect
		sx1= rect->xmin + dx*(rect->xmax-rect->xmin);
		sx2= rect->xmin + (dx+0.05f)*(rect->xmax-rect->xmin);
		sy= rect->ymin;
		dy= (rect->ymax-rect->ymin)/3.0;
		
		glBegin(GL_QUADS);
		for(a=0; a<3; a++, sy+=dy) {
			glColor4f(col0[a][0], col0[a][1], col0[a][2], alpha);
			glVertex2f(sx1, sy);
			
			glColor4f(col1[a][0], col1[a][1], col1[a][2], alpha);
			glVertex2f(sx2, sy);

			glColor4f(col1[a+1][0], col1[a+1][1], col1[a+1][2], alpha);
			glVertex2f(sx2, sy+dy);
			
			glColor4f(col0[a+1][0], col0[a+1][1], col0[a+1][2], alpha);
			glVertex2f(sx1, sy+dy);
		}
		glEnd();
	}
	
	glShadeModel(GL_FLAT);
	
}



static void ui_draw_but_HSVCUBE(uiBut *but, rcti *rect)
{
	float rgb[3], h,s,v;
	float x=0.0f, y=0.0f;
	float *hsv= ui_block_hsv_get(but->block);
	float hsvn[3];
	
	h= hsv[0];
	s= hsv[1];
	v= hsv[2];
	
	ui_get_but_vectorf(but, rgb);
	rgb_to_hsv_compat(rgb[0], rgb[1], rgb[2], &h, &s, &v);

	hsvn[0]= h;
	hsvn[1]= s;
	hsvn[2]= v;
	
	ui_draw_gradient(rect, hsvn, but->a1, 1.f);
	
	switch((int)but->a1) {
		case UI_GRAD_SV:
			x= v; y= s; break;
		case UI_GRAD_HV:
			x= h; y= v; break;
		case UI_GRAD_HS:
			x= h; y= s; break;
		case UI_GRAD_H:
			x= h; y= 0.5; break;
		case UI_GRAD_S:
			x= s; y= 0.5; break;
		case UI_GRAD_V:
			x= v; y= 0.5; break;
	}
	
	/* cursor */
	x= rect->xmin + x*(rect->xmax-rect->xmin);
	y= rect->ymin + y*(rect->ymax-rect->ymin);
	CLAMP(x, rect->xmin+3.0f, rect->xmax-3.0f);
	CLAMP(y, rect->ymin+3.0f, rect->ymax-3.0f);
	
	ui_hsv_cursor(x, y);
	
	/* outline */
	glColor3ub(0,  0,  0);
	fdrawbox((rect->xmin), (rect->ymin), (rect->xmax), (rect->ymax));
}

/* vertical 'value' slider, using new widget code */
static void ui_draw_but_HSV_v(uiBut *but, rcti *rect)
{
	uiWidgetBase wtb;
	float rad= 0.5f*(rect->xmax - rect->xmin);
	float x, y;
	float rgb[3], hsv[3], v, range;
	int color_profile = but->block->color_profile;
	
	if (but->rnaprop && RNA_property_subtype(but->rnaprop) == PROP_COLOR_GAMMA)
		color_profile = BLI_PR_NONE;

	ui_get_but_vectorf(but, rgb);
	rgb_to_hsv(rgb[0], rgb[1], rgb[2], hsv, hsv+1, hsv+2);
	v = hsv[2];
	
	if (color_profile)
		v = linearrgb_to_srgb(v);

	/* map v from property range to [0,1] */
	range = but->softmax - but->softmin;
	v =	(v - but->softmin)/range;
	
	widget_init(&wtb);
	
	/* fully rounded */
	round_box_edges(&wtb, UI_CNR_ALL, rect, rad);
	
	/* setup temp colors */
	wcol_tmp.outline[0]= wcol_tmp.outline[1]= wcol_tmp.outline[2]= 0;
	wcol_tmp.inner[0]= wcol_tmp.inner[1]= wcol_tmp.inner[2]= 128;
	wcol_tmp.shadetop= 127;
	wcol_tmp.shadedown= -128;
	wcol_tmp.shaded= 1;
	
	widgetbase_draw(&wtb, &wcol_tmp);

	/* cursor */
	x= rect->xmin + 0.5f * (rect->xmax-rect->xmin);
	y= rect->ymin + v * (rect->ymax-rect->ymin);
	CLAMP(y, rect->ymin+3.0f, rect->ymax-3.0f);
	
	ui_hsv_cursor(x, y);
	
}


/* ************ separator, for menus etc ***************** */
static void ui_draw_separator(rcti *rect,  uiWidgetColors *wcol)
{
	int y = rect->ymin + (rect->ymax - rect->ymin)/2 - 1;
	unsigned char col[4];
	
	col[0] = wcol->text[0];
	col[1] = wcol->text[1];
	col[2] = wcol->text[2];
	col[3] = 7;
	
	glEnable(GL_BLEND);
	glColor4ubv(col);
	sdrawline(rect->xmin, y, rect->xmax, y);
	glDisable(GL_BLEND);
}

/* ************ button callbacks, draw ***************** */

static void widget_numbut(uiWidgetColors *wcol, rcti *rect, int state, int roundboxalign)
{
	uiWidgetBase wtb;
	float rad= 0.5f*(rect->ymax - rect->ymin);
	float textofs = rad*0.75f;

	if(state & UI_SELECT)
		SWAP(short, wcol->shadetop, wcol->shadedown);
	
	widget_init(&wtb);
	
	/* fully rounded */
	round_box_edges(&wtb, roundboxalign, rect, rad);
	
	/* decoration */
	if(!(state & UI_TEXTINPUT)) {
		widget_num_tria(&wtb.tria1, rect, 0.6f, 'l');
		widget_num_tria(&wtb.tria2, rect, 0.6f, 'r');
	}

	widgetbase_draw(&wtb, wcol);
	
	/* text space */
	rect->xmin += textofs;
	rect->xmax -= textofs;
}

//static int ui_link_bezier_points(rcti *rect, float coord_array[][2], int resol)
int ui_link_bezier_points(rcti *rect, float coord_array[][2], int resol)
{
	float dist, vec[4][2];

	vec[0][0]= rect->xmin;
	vec[0][1]= rect->ymin;
	vec[3][0]= rect->xmax;
	vec[3][1]= rect->ymax;
	
	dist= 0.5f*ABS(vec[0][0] - vec[3][0]);
	
	vec[1][0]= vec[0][0]+dist;
	vec[1][1]= vec[0][1];
	
	vec[2][0]= vec[3][0]-dist;
	vec[2][1]= vec[3][1];
	
	forward_diff_bezier(vec[0][0], vec[1][0], vec[2][0], vec[3][0], coord_array[0], resol, sizeof(float)*2);
	forward_diff_bezier(vec[0][1], vec[1][1], vec[2][1], vec[3][1], coord_array[0]+1, resol, sizeof(float)*2);
	
	return 1;
}

#define LINK_RESOL	24
void ui_draw_link_bezier(rcti *rect)
{
	float coord_array[LINK_RESOL+1][2];
	
	if(ui_link_bezier_points(rect, coord_array, LINK_RESOL)) {
		/* we can reuse the dist variable here to increment the GL curve eval amount*/
		// const float dist= 1.0f/(float)LINK_RESOL; // UNUSED

		glEnable(GL_BLEND);
		glEnable(GL_LINE_SMOOTH);

		glEnableClientState(GL_VERTEX_ARRAY);
		glVertexPointer(2, GL_FLOAT, 0, coord_array);
		glDrawArrays(GL_LINE_STRIP, 0, LINK_RESOL);
		glDisableClientState(GL_VERTEX_ARRAY);

		glDisable(GL_BLEND);
		glDisable(GL_LINE_SMOOTH);

	}
}

/* function in use for buttons and for view2d sliders */
void uiWidgetScrollDraw(uiWidgetColors *wcol, rcti *rect, rcti *slider, int state)
{
	uiWidgetBase wtb;
	float rad;
	int horizontal;
	short outline=0;

	widget_init(&wtb);

	/* determine horizontal/vertical */
	horizontal= (rect->xmax - rect->xmin > rect->ymax - rect->ymin);
	
	if(horizontal)
		rad= 0.5f*(rect->ymax - rect->ymin);
	else
		rad= 0.5f*(rect->xmax - rect->xmin);
	
	wtb.shadedir= (horizontal)? 1: 0;
	
	/* draw back part, colors swapped and shading inverted */
	if(horizontal)
		SWAP(short, wcol->shadetop, wcol->shadedown);
	
	round_box_edges(&wtb, UI_CNR_ALL, rect, rad);
	widgetbase_draw(&wtb, wcol);
	
	/* slider */
	if(slider->xmax-slider->xmin<2 || slider->ymax-slider->ymin<2);
	else {
		
		SWAP(short, wcol->shadetop, wcol->shadedown);
		
		copy_v4_v4_char(wcol->inner, wcol->item);
		
		if(wcol->shadetop>wcol->shadedown)
			wcol->shadetop+= 20;	/* XXX violates themes... */
		else wcol->shadedown+= 20;
		
		if(state & UI_SCROLL_PRESSED) {
			wcol->inner[0]= wcol->inner[0]>=250? 255 : wcol->inner[0]+5;
			wcol->inner[1]= wcol->inner[1]>=250? 255 : wcol->inner[1]+5;
			wcol->inner[2]= wcol->inner[2]>=250? 255 : wcol->inner[2]+5;
		}

		/* draw */
		wtb.emboss= 0; /* only emboss once */
		
		/* exception for progress bar */
		if (state & UI_SCROLL_NO_OUTLINE)	
			SWAP(short, outline, wtb.outline);
		
		round_box_edges(&wtb, UI_CNR_ALL, slider, rad);
		
		if(state & UI_SCROLL_ARROWS) {
			if(wcol->item[0] > 48) wcol->item[0]-= 48;
			if(wcol->item[1] > 48) wcol->item[1]-= 48;
			if(wcol->item[2] > 48) wcol->item[2]-= 48;
			wcol->item[3]= 255;
			
			if(horizontal) {
				widget_scroll_circle(&wtb.tria1, slider, 0.6f, 'l');
				widget_scroll_circle(&wtb.tria2, slider, 0.6f, 'r');
			}
			else {
				widget_scroll_circle(&wtb.tria1, slider, 0.6f, 'b');
				widget_scroll_circle(&wtb.tria2, slider, 0.6f, 't');
			}
		}
		widgetbase_draw(&wtb, wcol);
		
		if (state & UI_SCROLL_NO_OUTLINE)
			SWAP(short, outline, wtb.outline);
	}	
}

static void widget_scroll(uiBut *but, uiWidgetColors *wcol, rcti *rect, int state, int UNUSED(roundboxalign))
{
	rcti rect1;
	double value;
	float fac, size, min;
	int horizontal;

	/* calculate slider part */
	value= ui_get_but_val(but);

	size= (but->softmax + but->a1 - but->softmin);
	size= MAX2(size, 2);
	
	/* position */
	rect1= *rect;

	/* determine horizontal/vertical */
	horizontal= (rect->xmax - rect->xmin > rect->ymax - rect->ymin);
	
	if(horizontal) {
		fac= (rect->xmax - rect->xmin)/(size);
		rect1.xmin = rect1.xmin + ceilf(fac*((float)value - but->softmin));
		rect1.xmax = rect1.xmin + ceilf(fac*(but->a1 - but->softmin));

		/* ensure minimium size */
		min= rect->ymax - rect->ymin;

		if(rect1.xmax - rect1.xmin < min) {
			rect1.xmax = rect1.xmin + min;

			if(rect1.xmax > rect->xmax) {
				rect1.xmax = rect->xmax;
				rect1.xmin = MAX2(rect1.xmax - min, rect->xmin);
			}
		}
	}
	else {
		fac= (rect->ymax - rect->ymin)/(size);
		rect1.ymax = rect1.ymax - ceilf(fac*((float)value - but->softmin));
		rect1.ymin = rect1.ymax - ceilf(fac*(but->a1 - but->softmin));

		/* ensure minimium size */
		min= rect->xmax - rect->xmin;

		if(rect1.ymax - rect1.ymin < min) {
			rect1.ymax = rect1.ymin + min;

			if(rect1.ymax > rect->ymax) {
				rect1.ymax = rect->ymax;
				rect1.ymin = MAX2(rect1.ymax - min, rect->ymin);
			}
		}
	}

	if(state & UI_SELECT)
		state= UI_SCROLL_PRESSED;
	else
		state= 0;
	uiWidgetScrollDraw(wcol, rect, &rect1, state);
}

static void widget_progressbar(uiBut *but, uiWidgetColors *wcol, rcti *rect, int UNUSED(state), int UNUSED(roundboxalign))
{
	rcti rect_prog = *rect, rect_bar = *rect;
	float value = but->a1;
	float w, min;
	
	/* make the progress bar a proportion of the original height */
	/* hardcoded 4px high for now */
	rect_prog.ymax = rect_prog.ymin + 4;
	rect_bar.ymax = rect_bar.ymin + 4;
	
	w = value * (rect_prog.xmax - rect_prog.xmin);
	
	/* ensure minimium size */
	min= rect_prog.ymax - rect_prog.ymin;
	w = MAX2(w, min);
	
	rect_bar.xmax = rect_bar.xmin + w;
		
	uiWidgetScrollDraw(wcol, &rect_prog, &rect_bar, UI_SCROLL_NO_OUTLINE);
	
	/* raise text a bit */
	rect->ymin += 6;
	rect->xmin -= 6;
}

static void widget_link(uiBut *but, uiWidgetColors *UNUSED(wcol), rcti *rect, int UNUSED(state), int UNUSED(roundboxalign))
{
	
	if(but->flag & UI_SELECT) {
		rcti rectlink;
		
		UI_ThemeColor(TH_TEXT_HI);
		
		rectlink.xmin = (rect->xmin+rect->xmax)/2;
		rectlink.ymin = (rect->ymin+rect->ymax)/2;
		rectlink.xmax = but->linkto[0];
		rectlink.ymax = but->linkto[1];
		
		ui_draw_link_bezier(&rectlink);
	}
}

static void widget_numslider(uiBut *but, uiWidgetColors *wcol, rcti *rect, int state, int roundboxalign)
{
	uiWidgetBase wtb, wtb1;
	rcti rect1;
	double value;
	float offs, toffs, fac;
	char outline[3];

	widget_init(&wtb);
	widget_init(&wtb1);
	
	/* backdrop first */
	
	/* fully rounded */
	offs= 0.5f*(rect->ymax - rect->ymin);
	toffs = offs*0.75f;
	round_box_edges(&wtb, roundboxalign, rect, offs);

	wtb.outline= 0;
	widgetbase_draw(&wtb, wcol);
	
	/* draw left/right parts only when not in text editing */
	if(!(state & UI_TEXTINPUT)) {
		
			/* slider part */
		copy_v3_v3_char(outline, wcol->outline);
		copy_v3_v3_char(wcol->outline, wcol->item);
		copy_v3_v3_char(wcol->inner, wcol->item);

		if(!(state & UI_SELECT))
			SWAP(short, wcol->shadetop, wcol->shadedown);
		
		rect1= *rect;
		
		value= ui_get_but_val(but);
		fac= ((float)value-but->softmin)*(rect1.xmax - rect1.xmin - offs)/(but->softmax - but->softmin);
		
		/* left part of slider, always rounded */
		rect1.xmax = rect1.xmin + ceil(offs+1.0f);
		round_box_edges(&wtb1, roundboxalign & ~(UI_CNR_TOP_RIGHT | UI_CNR_BOTTOM_RIGHT), &rect1, offs);
		wtb1.outline= 0;
		widgetbase_draw(&wtb1, wcol);
		
		/* right part of slider, interpolate roundness */
		rect1.xmax = rect1.xmin + fac + offs;
		rect1.xmin+=  floor(offs-1.0f);
		if(rect1.xmax + offs > rect->xmax)
			offs*= (rect1.xmax + offs - rect->xmax)/offs;
		else 
			offs= 0.0f;
		round_box_edges(&wtb1, roundboxalign & ~(UI_CNR_TOP_LEFT | UI_CNR_BOTTOM_LEFT), &rect1, offs);
		
		widgetbase_draw(&wtb1, wcol);
		copy_v3_v3_char(wcol->outline, outline);
		
		if(!(state & UI_SELECT))
			SWAP(short, wcol->shadetop, wcol->shadedown);
	}
	
	/* outline */
	wtb.outline= 1;
	wtb.inner= 0;
	widgetbase_draw(&wtb, wcol);
	
	/* text space */
	rect->xmin += toffs;
	rect->xmax -= toffs;
}

/* I think 3 is sufficient border to indicate keyed status */
#define SWATCH_KEYED_BORDER 3

static void widget_swatch(uiBut *but, uiWidgetColors *wcol, rcti *rect, int state, int roundboxalign)
{
	uiWidgetBase wtb;
	float col[4];
	int color_profile = but->block->color_profile;
	
	col[3]= 1.0f;

	if (but->rnaprop) {
		if (RNA_property_subtype(but->rnaprop) == PROP_COLOR_GAMMA)
			color_profile = BLI_PR_NONE;

		if(RNA_property_array_length(&but->rnapoin, but->rnaprop)==4) {
			col[3]= RNA_property_float_get_index(&but->rnapoin, but->rnaprop, 3);
		}
	}
	
	widget_init(&wtb);
	
	/* half rounded */
	round_box_edges(&wtb, roundboxalign, rect, 5.0f);
		
	ui_get_but_vectorf(but, col);
	
	if(state & (UI_BUT_ANIMATED|UI_BUT_ANIMATED_KEY|UI_BUT_DRIVEN|UI_BUT_REDALERT)) {
		// draw based on state - color for keyed etc
		widgetbase_draw(&wtb, wcol);
		
		// inset to draw swatch color
		rect->xmin+= SWATCH_KEYED_BORDER;
		rect->xmax-= SWATCH_KEYED_BORDER;
		rect->ymin+= SWATCH_KEYED_BORDER;
		rect->ymax-= SWATCH_KEYED_BORDER;
		
		round_box_edges(&wtb, roundboxalign, rect, 5.0f);
	}
	
	if (color_profile)
		linearrgb_to_srgb_v3_v3(col, col);
	
	rgba_float_to_uchar((unsigned char *)wcol->inner, col);

	wcol->shaded = 0;
	wcol->alpha_check = (wcol->inner[3] < 255);

	widgetbase_draw(&wtb, wcol);
	
}

static void widget_icon_has_anim(uiBut *UNUSED(but), uiWidgetColors *wcol, rcti *rect, int state, int UNUSED(roundboxalign))
{
	if(state & (UI_BUT_ANIMATED|UI_BUT_ANIMATED_KEY|UI_BUT_DRIVEN|UI_BUT_REDALERT)) {
		uiWidgetBase wtb;
	
		widget_init(&wtb);
		wtb.outline= 0;
		
		/* rounded */
		round_box_edges(&wtb, UI_CNR_ALL, rect, 10.0f);
		widgetbase_draw(&wtb, wcol);
	}	
}


static void widget_textbut(uiWidgetColors *wcol, rcti *rect, int state, int roundboxalign)
{
	uiWidgetBase wtb;
	
	if(state & UI_SELECT)
		SWAP(short, wcol->shadetop, wcol->shadedown);
	
	widget_init(&wtb);
	
	/* half rounded */
	round_box_edges(&wtb, roundboxalign, rect, 4.0f);
	
	widgetbase_draw(&wtb, wcol);

}


static void widget_menubut(uiWidgetColors *wcol, rcti *rect, int UNUSED(state), int roundboxalign)
{
	uiWidgetBase wtb;
	
	widget_init(&wtb);
	
	/* half rounded */
	round_box_edges(&wtb, roundboxalign, rect, 4.0f);
	
	/* decoration */
	widget_menu_trias(&wtb.tria1, rect);
	
	widgetbase_draw(&wtb, wcol);
	
	/* text space */
	rect->xmax -= (rect->ymax-rect->ymin);
}

static void widget_menuiconbut(uiWidgetColors *wcol, rcti *rect, int UNUSED(state), int roundboxalign)
{
	uiWidgetBase wtb;
	
	widget_init(&wtb);
	
	/* half rounded */
	round_box_edges(&wtb, roundboxalign, rect, 4.0f);
	
	/* decoration */
	widgetbase_draw(&wtb, wcol);
}

static void widget_menunodebut(uiWidgetColors *wcol, rcti *rect, int UNUSED(state), int roundboxalign)
{
	/* silly node link button hacks */
	uiWidgetBase wtb;
	uiWidgetColors wcol_backup= *wcol;
	
	widget_init(&wtb);
	
	/* half rounded */
	round_box_edges(&wtb, roundboxalign, rect, 4.0f);

	wcol->inner[0] += 15;
	wcol->inner[1] += 15;
	wcol->inner[2] += 15;
	wcol->outline[0] += 15;
	wcol->outline[1] += 15;
	wcol->outline[2] += 15;
	
	/* decoration */
	widgetbase_draw(&wtb, wcol);
	*wcol= wcol_backup;
}

static void widget_pulldownbut(uiWidgetColors *wcol, rcti *rect, int state, int UNUSED(roundboxalign))
{
	if(state & UI_ACTIVE) {
		uiWidgetBase wtb;
		float rad= 0.5f*(rect->ymax - rect->ymin); // 4.0f
		
		widget_init(&wtb);
		
		/* half rounded */
		round_box_edges(&wtb, UI_CNR_ALL, rect, rad);
		
		widgetbase_draw(&wtb, wcol);
	}
}

static void widget_menu_itembut(uiWidgetColors *wcol, rcti *rect, int UNUSED(state), int UNUSED(roundboxalign))
{
	uiWidgetBase wtb;
	
	widget_init(&wtb);
	
	/* not rounded, no outline */
	wtb.outline= 0;
	round_box_edges(&wtb, 0, rect, 0.0f);
	
	widgetbase_draw(&wtb, wcol);
}

static void widget_list_itembut(uiWidgetColors *wcol, rcti *rect, int UNUSED(state), int UNUSED(roundboxalign))
{
	uiWidgetBase wtb;
	
	widget_init(&wtb);
	
	/* rounded, but no outline */
	wtb.outline= 0;
	round_box_edges(&wtb, UI_CNR_ALL, rect, 4.0f);
	
	widgetbase_draw(&wtb, wcol);
}

static void widget_optionbut(uiWidgetColors *wcol, rcti *rect, int state, int UNUSED(roundboxalign))
{
	uiWidgetBase wtb;
	rcti recttemp= *rect;
	int delta;
	
	widget_init(&wtb);
	
	/* square */
	recttemp.xmax = recttemp.xmin + (recttemp.ymax-recttemp.ymin);
	
	/* smaller */
	delta= 1 + (recttemp.ymax-recttemp.ymin)/8;
	recttemp.xmin+= delta;
	recttemp.ymin+= delta;
	recttemp.xmax-= delta;
	recttemp.ymax-= delta;
	
	/* half rounded */
	round_box_edges(&wtb, UI_CNR_ALL, &recttemp, 4.0f);
	
	/* decoration */
	if(state & UI_SELECT) {
		widget_check_trias(&wtb.tria1, &recttemp);
	}
	
	widgetbase_draw(&wtb, wcol);
	
	/* text space */
	rect->xmin += (rect->ymax-rect->ymin)*0.7 + delta;
}


static void widget_radiobut(uiWidgetColors *wcol, rcti *rect, int UNUSED(state), int roundboxalign)
{
	uiWidgetBase wtb;
	
	widget_init(&wtb);
	
	/* half rounded */
	round_box_edges(&wtb, roundboxalign, rect, 4.0f);
	
	widgetbase_draw(&wtb, wcol);

}

static void widget_box(uiBut *but, uiWidgetColors *wcol, rcti *rect, int UNUSED(state), int roundboxalign)
{
	uiWidgetBase wtb;
	char old_col[3];
	
	widget_init(&wtb);
	
	copy_v3_v3_char(old_col, wcol->inner);
	
	/* abuse but->hsv - if it's non-zero, use this color as the box's background */
	if (but->col[3]) {
		wcol->inner[0] = but->col[0];
		wcol->inner[1] = but->col[1];
		wcol->inner[2] = but->col[2];
	}
	
	/* half rounded */
	round_box_edges(&wtb, roundboxalign, rect, 4.0f);
	
	widgetbase_draw(&wtb, wcol);
	
	/* store the box bg as gl clearcolor, to retrieve later when drawing semi-transparent rects
	 * over the top to indicate disabled buttons */
	/* XXX, this doesnt work right since the color applies to buttons outside the box too. */
	glClearColor(wcol->inner[0]/255.0, wcol->inner[1]/255.0, wcol->inner[2]/255.0, 1.0);
	
	copy_v3_v3_char(wcol->inner, old_col);
}

static void widget_but(uiWidgetColors *wcol, rcti *rect, int UNUSED(state), int roundboxalign)
{
	uiWidgetBase wtb;
	
	widget_init(&wtb);
	
	/* half rounded */
	round_box_edges(&wtb, roundboxalign, rect, 4.0f);
		
	widgetbase_draw(&wtb, wcol);

}

static void widget_roundbut(uiWidgetColors *wcol, rcti *rect, int UNUSED(state), int roundboxalign)
{
	uiWidgetBase wtb;
	float rad= 5.0f; //0.5f*(rect->ymax - rect->ymin);
	
	widget_init(&wtb);
	
	/* half rounded */
	round_box_edges(&wtb, roundboxalign, rect, rad);

	widgetbase_draw(&wtb, wcol);
}

static void widget_draw_extra_mask(const bContext *C, uiBut *but, uiWidgetType *wt, rcti *rect)
{
	uiWidgetBase wtb;
	unsigned char col[4];
	
	/* state copy! */
	wt->wcol= *(wt->wcol_theme);
	
	widget_init(&wtb);
	
	if(but->block->drawextra) {
		/* note: drawextra can change rect +1 or -1, to match round errors of existing previews */
		but->block->drawextra(C, but->poin, but->block->drawextra_arg1, but->block->drawextra_arg2, rect);
		
		/* make mask to draw over image */
		UI_GetThemeColor3ubv(TH_BACK, col);
		glColor3ubv(col);
		
		round_box__edges(&wtb, UI_CNR_ALL, rect, 0.0f, 4.0);
		widgetbase_outline(&wtb);
	}
	
	/* outline */
	round_box_edges(&wtb, UI_CNR_ALL, rect, 5.0f);
	wtb.outline= 1;
	wtb.inner= 0;
	widgetbase_draw(&wtb, &wt->wcol);
	
}


static void widget_disabled(rcti *rect)
{
	float col[4];
	
	glEnable(GL_BLEND);
	
	/* can't use theme TH_BACK or TH_PANEL... undefined */
	glGetFloatv(GL_COLOR_CLEAR_VALUE, col);
	glColor4f(col[0], col[1], col[2], 0.5f);

	/* need -1 and +1 to make it work right for aligned buttons,
	 * but problem may be somewhere else? */
	glRectf(rect->xmin-1, rect->ymin-1, rect->xmax, rect->ymax+1);
	
	glDisable(GL_BLEND);
}

static uiWidgetType *widget_type(uiWidgetTypeEnum type)
{
	bTheme *btheme= UI_GetTheme();
	static uiWidgetType wt;
	
	/* defaults */
	wt.wcol_theme= &btheme->tui.wcol_regular;
	wt.wcol_state= &btheme->tui.wcol_state;
	wt.state= widget_state;
	wt.draw= widget_but;
	wt.custom= NULL;
	wt.text= widget_draw_text_icon;
	
	switch(type) {
		case UI_WTYPE_REGULAR:
			break;

		case UI_WTYPE_LABEL:
			wt.draw= NULL;
			wt.state= widget_state_label;
			break;
			
		case UI_WTYPE_TOGGLE:
			wt.wcol_theme= &btheme->tui.wcol_toggle;
			break;
			
		case UI_WTYPE_OPTION:
			wt.wcol_theme= &btheme->tui.wcol_option;
			wt.draw= widget_optionbut;
			break;
			
		case UI_WTYPE_RADIO:
			wt.wcol_theme= &btheme->tui.wcol_radio;
			wt.draw= widget_radiobut;
			break;

		case UI_WTYPE_NUMBER:
			wt.wcol_theme= &btheme->tui.wcol_num;
			wt.draw= widget_numbut;
			break;
			
		case UI_WTYPE_SLIDER:
			wt.wcol_theme= &btheme->tui.wcol_numslider;
			wt.custom= widget_numslider;
			wt.state= widget_state_numslider;
			break;
			
		case UI_WTYPE_EXEC:
			wt.wcol_theme= &btheme->tui.wcol_tool;
			wt.draw= widget_roundbut;
			break;

		case UI_WTYPE_TOOLTIP:
			wt.wcol_theme = &btheme->tui.wcol_tooltip;
			wt.draw = widget_menu_back;
			break;
			
			
			/* strings */
		case UI_WTYPE_NAME:
			wt.wcol_theme= &btheme->tui.wcol_text;
			wt.draw= widget_textbut;
			break;
			
		case UI_WTYPE_NAME_LINK:
			break;
			
		case UI_WTYPE_POINTER_LINK:
			break;
			
		case UI_WTYPE_FILENAME:
			break;
			
			
			/* start menus */
		case UI_WTYPE_MENU_RADIO:
			wt.wcol_theme= &btheme->tui.wcol_menu;
			wt.draw= widget_menubut;
			break;

		case UI_WTYPE_MENU_ICON_RADIO:
			wt.wcol_theme= &btheme->tui.wcol_menu;
			wt.draw= widget_menuiconbut;
			break;
			
		case UI_WTYPE_MENU_POINTER_LINK:
			wt.wcol_theme= &btheme->tui.wcol_menu;
			wt.draw= widget_menubut;
			break;

		case UI_WTYPE_MENU_NODE_LINK:
			wt.wcol_theme= &btheme->tui.wcol_menu;
			wt.draw= widget_menunodebut;
			break;
			
		case UI_WTYPE_PULLDOWN:
			wt.wcol_theme= &btheme->tui.wcol_pulldown;
			wt.draw= widget_pulldownbut;
			wt.state= widget_state_pulldown;
			break;
			
			/* in menus */
		case UI_WTYPE_MENU_ITEM:
			wt.wcol_theme= &btheme->tui.wcol_menu_item;
			wt.draw= widget_menu_itembut;
			wt.state= widget_state_menu_item;
			break;
			
		case UI_WTYPE_MENU_BACK:
			wt.wcol_theme= &btheme->tui.wcol_menu_back;
			wt.draw= widget_menu_back;
			break;
			
			/* specials */
		case UI_WTYPE_ICON:
			wt.custom= widget_icon_has_anim;
			break;
			
		case UI_WTYPE_SWATCH:
			wt.custom= widget_swatch;
			break;
			
		case UI_WTYPE_BOX:
			wt.custom= widget_box;
			wt.wcol_theme= &btheme->tui.wcol_box;
			break;
			
		case UI_WTYPE_RGB_PICKER:
			break;
			
		case UI_WTYPE_NORMAL:
			break;

		case UI_WTYPE_SCROLL:
			wt.wcol_theme= &btheme->tui.wcol_scroll;
			wt.state= widget_state_nothing;
			wt.custom= widget_scroll;
			break;

		case UI_WTYPE_LISTITEM:
			wt.wcol_theme= &btheme->tui.wcol_list_item;
			wt.draw= widget_list_itembut;
			break;
			
		case UI_WTYPE_PROGRESSBAR:
			wt.wcol_theme= &btheme->tui.wcol_progress;
			wt.custom= widget_progressbar;
			break;
	}
	
	return &wt;
}


static int widget_roundbox_set(uiBut *but, rcti *rect)
{
	/* alignment */
	if(but->flag & UI_BUT_ALIGN) {
		
		if(but->flag & UI_BUT_ALIGN_TOP)
			rect->ymax+= 1;
		if(but->flag & UI_BUT_ALIGN_LEFT)
			rect->xmin-= 1;
		
		switch(but->flag & UI_BUT_ALIGN) {
			case UI_BUT_ALIGN_TOP:
				return UI_CNR_BOTTOM_LEFT | UI_CNR_BOTTOM_RIGHT;
			case UI_BUT_ALIGN_DOWN:
				return UI_CNR_TOP_LEFT | UI_CNR_TOP_RIGHT;
			case UI_BUT_ALIGN_LEFT:
				return UI_CNR_TOP_RIGHT | UI_CNR_BOTTOM_RIGHT;
			case UI_BUT_ALIGN_RIGHT:
				return UI_CNR_TOP_LEFT | UI_CNR_BOTTOM_LEFT;
			case UI_BUT_ALIGN_DOWN | UI_BUT_ALIGN_RIGHT:
				return UI_CNR_TOP_LEFT;
			case UI_BUT_ALIGN_DOWN | UI_BUT_ALIGN_LEFT:
				return UI_CNR_TOP_RIGHT;
			case UI_BUT_ALIGN_TOP | UI_BUT_ALIGN_RIGHT:
				return UI_CNR_BOTTOM_LEFT;
			case UI_BUT_ALIGN_TOP | UI_BUT_ALIGN_LEFT:
				return UI_CNR_BOTTOM_RIGHT;
			default:
				return 0;
		}
	}

	return UI_CNR_ALL;
}

/* conversion from old to new buttons, so still messy */
void ui_draw_but(const bContext *C, ARegion *ar, uiStyle *style, uiBut *but, rcti *rect)
{
	bTheme *btheme= UI_GetTheme();
	ThemeUI *tui= &btheme->tui;
	uiFontStyle *fstyle= &style->widget;
	uiWidgetType *wt= NULL;

	/* handle menus separately */
	if(but->dt==UI_EMBOSSP) {
		switch (but->type) {
			case LABEL:
				widget_draw_text_icon(&style->widgetlabel, &tui->wcol_menu_back, but, rect);
				break;
			case SEPR:
				ui_draw_separator(rect, &tui->wcol_menu_item);
				break;
				
			default:
				wt= widget_type(UI_WTYPE_MENU_ITEM);
		}
	}
	else if(but->dt==UI_EMBOSSN) {
		/* "nothing" */
		wt= widget_type(UI_WTYPE_ICON);
	}
	else {
		
		switch (but->type) {
			case LABEL:
				if(but->block->flag & UI_BLOCK_LOOP)
					widget_draw_text_icon(&style->widgetlabel, &tui->wcol_menu_back, but, rect);
				else {
					wt= widget_type(UI_WTYPE_LABEL);
					fstyle= &style->widgetlabel;
				}
				break;
				
			case SEPR:
				break;
				
			case BUT:
				wt= widget_type(UI_WTYPE_EXEC);
				break;

			case NUM:
				wt= widget_type(UI_WTYPE_NUMBER);
				break;
				
			case NUMSLI:
			case HSVSLI:
				wt= widget_type(UI_WTYPE_SLIDER);
				break;
				
			case ROW:
				wt= widget_type(UI_WTYPE_RADIO);
				break;

			case LISTROW:
				wt= widget_type(UI_WTYPE_LISTITEM);
				break;
				
			case TEX:
				wt= widget_type(UI_WTYPE_NAME);
				break;
				
			case SEARCH_MENU:
				wt= widget_type(UI_WTYPE_NAME);
				if(but->block->flag & UI_BLOCK_LOOP)
					wt->wcol_theme= &btheme->tui.wcol_menu_back;
				break;
				
			case TOGBUT:
			case TOG:
			case TOGN:
			case TOG3:
				wt= widget_type(UI_WTYPE_TOGGLE);
				break;
				
			case OPTION:
			case OPTIONN:
				if (!(but->flag & UI_HAS_ICON)) {
					wt= widget_type(UI_WTYPE_OPTION);
					but->flag |= UI_TEXT_LEFT;
				}
				else
					wt= widget_type(UI_WTYPE_TOGGLE);
				
				/* option buttons have strings outside, on menus use different colors */
				if(but->block->flag & UI_BLOCK_LOOP)
					wt->state= widget_state_option_menu;
				
				break;
				
			case MENU:
			case BLOCK:
			case ICONTEXTROW:
				if(but->flag & UI_BUT_NODE_LINK)
					wt= widget_type(UI_WTYPE_MENU_NODE_LINK);
				else if(!but->str[0] && but->icon)
					wt= widget_type(UI_WTYPE_MENU_ICON_RADIO);
				else
					wt= widget_type(UI_WTYPE_MENU_RADIO);
				break;
				
			case PULLDOWN:
				wt= widget_type(UI_WTYPE_PULLDOWN);
				break;
			
			case BUTM:
				wt= widget_type(UI_WTYPE_MENU_ITEM);
				break;
				
			case COL:
				wt= widget_type(UI_WTYPE_SWATCH);
				break;
				
			case ROUNDBOX:
			case LISTBOX:
				wt= widget_type(UI_WTYPE_BOX);
				break;
				
			case LINK:
			case INLINK:
				wt= widget_type(UI_WTYPE_ICON);
				wt->custom= widget_link;
				
				break;
			
			case BUT_EXTRA:
				widget_draw_extra_mask(C, but, widget_type(UI_WTYPE_BOX), rect);
				break;
				
			case HSVCUBE:
				if(but->a1 == UI_GRAD_V_ALT) // vertical V slider, uses new widget draw now
					ui_draw_but_HSV_v(but, rect);
				else  // other HSV pickers...
					ui_draw_but_HSVCUBE(but, rect);
				break;
				
			case HSVCIRCLE:
				ui_draw_but_HSVCIRCLE(but, &tui->wcol_regular, rect);
				break;
				
			case BUT_COLORBAND:
				ui_draw_but_COLORBAND(but, &tui->wcol_regular, rect);
				break;
				
			case BUT_NORMAL:
				ui_draw_but_NORMAL(but, &tui->wcol_regular, rect);
				break;
				
			case BUT_IMAGE:
				ui_draw_but_IMAGE(ar, but, &tui->wcol_regular, rect);
				break;
			
			case HISTOGRAM:
				ui_draw_but_HISTOGRAM(ar, but, &tui->wcol_regular, rect);
				break;
				
			case WAVEFORM:
				ui_draw_but_WAVEFORM(ar, but, &tui->wcol_regular, rect);
				break;
				
			case VECTORSCOPE:
				ui_draw_but_VECTORSCOPE(ar, but, &tui->wcol_regular, rect);
				break;
					
			case BUT_CURVE:
				ui_draw_but_CURVE(ar, but, &tui->wcol_regular, rect);
				break;
				
			case PROGRESSBAR:
				wt= widget_type(UI_WTYPE_PROGRESSBAR);
				fstyle= &style->widgetlabel;
				break;

			case SCROLL:
				wt= widget_type(UI_WTYPE_SCROLL);
				break;

			case TRACKPREVIEW:
				ui_draw_but_TRACKPREVIEW(ar, but, &tui->wcol_regular, rect);
				break;

			default:
				wt= widget_type(UI_WTYPE_REGULAR);
		}
	}
	
	if(wt) {
		rcti disablerect= *rect; /* rect gets clipped smaller for text */
		int roundboxalign, state;
		
		roundboxalign= widget_roundbox_set(but, rect);

		state= but->flag;
		if(but->editstr) state |= UI_TEXTINPUT;
		
		wt->state(wt, state);
		if(wt->custom)
			wt->custom(but, &wt->wcol, rect, state, roundboxalign);
		else if(wt->draw)
			wt->draw(&wt->wcol, rect, state, roundboxalign);
		wt->text(fstyle, &wt->wcol, but, rect);
		
		if(state & (UI_BUT_DISABLED|UI_BUT_INACTIVE))
			if(but->dt!=UI_EMBOSSP)
				widget_disabled(&disablerect);
	}
}

void ui_draw_menu_back(uiStyle *UNUSED(style), uiBlock *block, rcti *rect)
{
	uiWidgetType *wt= widget_type(UI_WTYPE_MENU_BACK);
	
	wt->state(wt, 0);
	if(block)
		wt->draw(&wt->wcol, rect, block->flag, block->direction);
	else
		wt->draw(&wt->wcol, rect, 0, 0);
	
	if(block) {
		if(block->flag & UI_BLOCK_CLIPTOP) {
			/* XXX no scaling for UI here yet */
			glColor3ubv((unsigned char*)wt->wcol.text);
			UI_DrawTriIcon((rect->xmax+rect->xmin)/2, rect->ymax-8, 't');
		}
		if(block->flag & UI_BLOCK_CLIPBOTTOM) {
			/* XXX no scaling for UI here yet */
			glColor3ubv((unsigned char*)wt->wcol.text);
			UI_DrawTriIcon((rect->xmax+rect->xmin)/2, rect->ymin+10, 'v');
		}
	}	
}

uiWidgetColors* ui_tooltip_get_theme(void){
	uiWidgetType *wt = widget_type(UI_WTYPE_TOOLTIP);
	return wt->wcol_theme;
}

void ui_draw_tooltip_background(uiStyle *UNUSED(style), uiBlock *UNUSED(block), rcti *rect)
{
	uiWidgetType *wt = widget_type(UI_WTYPE_TOOLTIP);
	wt->state(wt, 0);
	/* wt->draw ends up using same function to draw the tooltip as menu_back */
	wt->draw(&wt->wcol, rect, 0, 0);
}

void ui_draw_search_back(uiStyle *UNUSED(style), uiBlock *block, rcti *rect)
{
	uiWidgetType *wt= widget_type(UI_WTYPE_BOX);
	
	glEnable(GL_BLEND);
	widget_softshadow(rect, UI_CNR_ALL, 5.0f, 8.0f);
	glDisable(GL_BLEND);

	wt->state(wt, 0);
	if(block)
		wt->draw(&wt->wcol, rect, block->flag, UI_CNR_ALL);
	else
		wt->draw(&wt->wcol, rect, 0, UI_CNR_ALL);
	
}


/* helper call to draw a menu item without button */
/* state: UI_ACTIVE or 0 */
void ui_draw_menu_item(uiFontStyle *fstyle, rcti *rect, const char *name, int iconid, int state)
{
	uiWidgetType *wt= widget_type(UI_WTYPE_MENU_ITEM);
	rcti _rect= *rect;
	char *cpoin;
	
	wt->state(wt, state);
	wt->draw(&wt->wcol, rect, 0, 0);
	
	uiStyleFontSet(fstyle);
	fstyle->align= UI_STYLE_TEXT_LEFT;
	
	/* text location offset */
	rect->xmin+=5;
	if(iconid) rect->xmin+= UI_DPI_ICON_SIZE;

	/* cut string in 2 parts? */
	cpoin= strchr(name, '|');
	if(cpoin) {
		*cpoin= 0;
		rect->xmax -= BLF_width(fstyle->uifont_id, cpoin+1) + 10;
	}
	
	glColor3ubv((unsigned char*)wt->wcol.text);
	uiStyleFontDraw(fstyle, rect, name);
	
	/* part text right aligned */
	if(cpoin) {
		fstyle->align= UI_STYLE_TEXT_RIGHT;
		rect->xmax = _rect.xmax - 5;
		uiStyleFontDraw(fstyle, rect, cpoin+1);
		*cpoin= '|';
	}
	
	/* restore rect, was messed with */
	*rect= _rect;

	if(iconid) {
		int xs= rect->xmin+4;
		int ys= 1 + (rect->ymin+rect->ymax- UI_DPI_ICON_SIZE)/2;
		glEnable(GL_BLEND);
		UI_icon_draw_aspect(xs, ys, iconid, 1.2f, 0.5f); /* XXX scale weak get from fstyle? */
		glDisable(GL_BLEND);
	}
}

void ui_draw_preview_item(uiFontStyle *fstyle, rcti *rect, const char *name, int iconid, int state)
{
	rcti trect = *rect, bg_rect;
	float font_dims[2] = {0.0f, 0.0f};
	uiWidgetType *wt= widget_type(UI_WTYPE_MENU_ITEM);
	unsigned char bg_col[3];
	
	wt->state(wt, state);
	wt->draw(&wt->wcol, rect, 0, 0);
	
	widget_draw_preview(iconid, 1.0f, rect);
	
	BLF_width_and_height(fstyle->uifont_id, name, &font_dims[0], &font_dims[1]);

	/* text rect */
	trect.xmin += 0;
	trect.xmax = trect.xmin + font_dims[0] + 10;
	trect.ymin += 10;
	trect.ymax = trect.ymin + font_dims[1];
	if(trect.xmax > rect->xmax - PREVIEW_PAD)
		trect.xmax = rect->xmax - PREVIEW_PAD;

	bg_rect = trect;
	bg_rect.xmin = rect->xmin + PREVIEW_PAD;
	bg_rect.ymin = rect->ymin + PREVIEW_PAD;
	bg_rect.xmax = rect->xmax - PREVIEW_PAD;
	bg_rect.ymax += PREVIEW_PAD / 2;
	
	if(bg_rect.xmax > rect->xmax - PREVIEW_PAD)
		bg_rect.xmax = rect->xmax - PREVIEW_PAD;

	UI_GetThemeColor3ubv(TH_BUTBACK, bg_col);
	glColor4ubv((unsigned char*)wt->wcol.item);
	glEnable(GL_BLEND);
	glRecti(bg_rect.xmin, bg_rect.ymin, bg_rect.xmax, bg_rect.ymax);
	glDisable(GL_BLEND);
	
	if (state == UI_ACTIVE)
		glColor3ubv((unsigned char*)wt->wcol.text);
	else
		glColor3ubv((unsigned char*)wt->wcol.text_sel);

	uiStyleFontDraw(fstyle, &trect, name);
}