350 lines
9.2 KiB
C
350 lines
9.2 KiB
C
/**
|
|
* $Id:
|
|
*
|
|
* ***** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
* The Original Code is Copyright (C) 2008 Blender Foundation.
|
|
* All rights reserved.
|
|
*
|
|
*
|
|
* Contributor(s): Blender Foundation
|
|
*
|
|
* ***** END GPL LICENSE BLOCK *****
|
|
*/
|
|
|
|
#define _USE_MATH_DEFINES
|
|
#include <math.h>
|
|
|
|
#include "DNA_screen_types.h"
|
|
#include "DNA_vec_types.h"
|
|
#include "DNA_userdef_types.h"
|
|
#include "DNA_windowmanager_types.h"
|
|
|
|
#include "MEM_guardedalloc.h"
|
|
|
|
#include "BLI_blenlib.h"
|
|
|
|
#include "BKE_context.h"
|
|
#include "BKE_utildefines.h"
|
|
|
|
#include "WM_api.h"
|
|
#include "WM_types.h"
|
|
|
|
#include "wm.h"
|
|
#include "wm_event_system.h"
|
|
#include "wm_subwindow.h"
|
|
|
|
#include "ED_screen.h"
|
|
|
|
#include "BIF_gl.h"
|
|
#include "BIF_glutil.h"
|
|
|
|
|
|
/* context checked on having screen, window and area */
|
|
wmGesture *WM_gesture_new(bContext *C, wmEvent *event, int type)
|
|
{
|
|
wmGesture *gesture= MEM_callocN(sizeof(wmGesture), "new gesture");
|
|
wmWindow *window= CTX_wm_window(C);
|
|
ARegion *ar= CTX_wm_region(C);
|
|
int sx, sy;
|
|
|
|
BLI_addtail(&window->gesture, gesture);
|
|
|
|
gesture->type= type;
|
|
gesture->event_type= event->type;
|
|
gesture->swinid= ar->swinid; /* means only in area-region context! */
|
|
|
|
wm_subwindow_getorigin(window, gesture->swinid, &sx, &sy);
|
|
|
|
if( ELEM4(type, WM_GESTURE_RECT, WM_GESTURE_CROSS_RECT, WM_GESTURE_TWEAK, WM_GESTURE_CIRCLE)) {
|
|
rcti *rect= MEM_callocN(sizeof(rcti), "gesture rect new");
|
|
|
|
gesture->customdata= rect;
|
|
rect->xmin= event->x - sx;
|
|
rect->ymin= event->y - sy;
|
|
if(type==WM_GESTURE_CIRCLE) {
|
|
#ifdef GESTURE_MEMORY
|
|
rect->xmax= circle_select_size;
|
|
#else
|
|
rect->xmax= 25; // XXX temp
|
|
#endif
|
|
} else {
|
|
rect->xmax= event->x - sx;
|
|
rect->ymax= event->y - sy;
|
|
}
|
|
}
|
|
else if (ELEM(type, WM_GESTURE_LINES, WM_GESTURE_LASSO)) {
|
|
short *lasso;
|
|
gesture->customdata= lasso= MEM_callocN(2*sizeof(short)*WM_LASSO_MAX_POINTS, "lasso points");
|
|
lasso[0] = event->x - sx;
|
|
lasso[1] = event->y - sy;
|
|
gesture->points= 1;
|
|
}
|
|
|
|
return gesture;
|
|
}
|
|
|
|
void WM_gesture_end(bContext *C, wmGesture *gesture)
|
|
{
|
|
BLI_remlink(&CTX_wm_window(C)->gesture, gesture);
|
|
MEM_freeN(gesture->customdata);
|
|
MEM_freeN(gesture);
|
|
}
|
|
|
|
/* tweak and line gestures */
|
|
#define TWEAK_THRESHOLD 10
|
|
int wm_gesture_evaluate(bContext *C, wmGesture *gesture)
|
|
{
|
|
if(gesture->type==WM_GESTURE_TWEAK) {
|
|
rcti *rect= gesture->customdata;
|
|
int dx= rect->xmax - rect->xmin;
|
|
int dy= rect->ymax - rect->ymin;
|
|
if(ABS(dx)+ABS(dy) > TWEAK_THRESHOLD) {
|
|
int theta= (int)floor(4.0f*atan2((float)dy, (float)dx)/M_PI + 0.5);
|
|
int val= EVT_GESTURE_W;
|
|
|
|
if(theta==0) val= EVT_GESTURE_E;
|
|
else if(theta==1) val= EVT_GESTURE_NE;
|
|
else if(theta==2) val= EVT_GESTURE_N;
|
|
else if(theta==3) val= EVT_GESTURE_NW;
|
|
else if(theta==-1) val= EVT_GESTURE_SE;
|
|
else if(theta==-2) val= EVT_GESTURE_S;
|
|
else if(theta==-3) val= EVT_GESTURE_SW;
|
|
|
|
#if 0
|
|
/* debug */
|
|
if(val==1) printf("tweak north\n");
|
|
if(val==2) printf("tweak north-east\n");
|
|
if(val==3) printf("tweak east\n");
|
|
if(val==4) printf("tweak south-east\n");
|
|
if(val==5) printf("tweak south\n");
|
|
if(val==6) printf("tweak south-west\n");
|
|
if(val==7) printf("tweak west\n");
|
|
if(val==8) printf("tweak north-west\n");
|
|
#endif
|
|
return val;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* ******************* gesture draw ******************* */
|
|
|
|
static void wm_gesture_draw_rect(wmWindow *win, wmGesture *gt)
|
|
{
|
|
rcti *rect= (rcti *)gt->customdata;
|
|
|
|
glEnable(GL_BLEND);
|
|
glColor4f(1.0, 1.0, 1.0, 0.05);
|
|
glBegin(GL_QUADS);
|
|
glVertex2s(rect->xmax, rect->ymin);
|
|
glVertex2s(rect->xmax, rect->ymax);
|
|
glVertex2s(rect->xmin, rect->ymax);
|
|
glVertex2s(rect->xmin, rect->ymin);
|
|
glEnd();
|
|
glDisable(GL_BLEND);
|
|
|
|
glEnable(GL_LINE_STIPPLE);
|
|
glColor3ub(96, 96, 96);
|
|
glLineStipple(1, 0xCCCC);
|
|
sdrawbox(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
|
|
glColor3ub(255, 255, 255);
|
|
glLineStipple(1, 0x3333);
|
|
sdrawbox(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
|
|
glDisable(GL_LINE_STIPPLE);
|
|
}
|
|
|
|
static void wm_gesture_draw_line(wmWindow *win, wmGesture *gt)
|
|
{
|
|
rcti *rect= (rcti *)gt->customdata;
|
|
|
|
glEnable(GL_LINE_STIPPLE);
|
|
glColor3ub(96, 96, 96);
|
|
glLineStipple(1, 0xAAAA);
|
|
sdrawline(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
|
|
glColor3ub(255, 255, 255);
|
|
glLineStipple(1, 0x5555);
|
|
sdrawline(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
|
|
|
|
glDisable(GL_LINE_STIPPLE);
|
|
|
|
}
|
|
|
|
static void wm_gesture_draw_circle(wmWindow *win, wmGesture *gt)
|
|
{
|
|
rcti *rect= (rcti *)gt->customdata;
|
|
|
|
glTranslatef((float)rect->xmin, (float)rect->ymin, 0.0f);
|
|
|
|
glEnable(GL_BLEND);
|
|
glColor4f(1.0, 1.0, 1.0, 0.05);
|
|
glutil_draw_filled_arc(0.0, M_PI*2.0, rect->xmax, 40);
|
|
glDisable(GL_BLEND);
|
|
|
|
glEnable(GL_LINE_STIPPLE);
|
|
glColor3ub(96, 96, 96);
|
|
glLineStipple(1, 0xAAAA);
|
|
glutil_draw_lined_arc(0.0, M_PI*2.0, rect->xmax, 40);
|
|
glColor3ub(255, 255, 255);
|
|
glLineStipple(1, 0x5555);
|
|
glutil_draw_lined_arc(0.0, M_PI*2.0, rect->xmax, 40);
|
|
|
|
glDisable(GL_LINE_STIPPLE);
|
|
glTranslatef((float)-rect->xmin, (float)-rect->ymin, 0.0f);
|
|
|
|
}
|
|
|
|
/* more than 64 intersections will just leak.. not much and not a likely scenario */
|
|
typedef struct TessData { int num; short *intersections[64]; } TessData;
|
|
|
|
static void combine_cb(GLdouble coords[3], GLdouble *vertex_data[4], GLfloat weight[4], void **dataOut, void *data)
|
|
{
|
|
short *vertex;
|
|
TessData *td = (TessData *)data;
|
|
vertex = (short *)malloc(2*sizeof(short));
|
|
vertex[0] = (short)coords[0];
|
|
vertex[1] = (short)coords[1];
|
|
*dataOut = vertex;
|
|
|
|
if (td->num < 64) {
|
|
td->intersections[td->num++] = vertex;
|
|
}
|
|
}
|
|
|
|
static void free_tess_data(GLUtesselator *tess, TessData *td)
|
|
{
|
|
int i;
|
|
for (i=0; i<td->num; i++) {
|
|
free(td->intersections[i]);
|
|
}
|
|
MEM_freeN(td);
|
|
td = NULL;
|
|
gluDeleteTess(tess);
|
|
}
|
|
|
|
static void wm_gesture_draw_lasso(wmWindow *win, wmGesture *gt)
|
|
{
|
|
short *lasso= (short *)gt->customdata;
|
|
int i;
|
|
TessData *data=MEM_callocN(sizeof(TessData), "tesselation data");
|
|
GLUtesselator *tess = gluNewTess();
|
|
|
|
/* use GLU tesselator to draw a filled lasso shape */
|
|
gluTessCallback(tess, GLU_TESS_BEGIN, glBegin);
|
|
gluTessCallback(tess, GLU_TESS_VERTEX, glVertex2sv);
|
|
gluTessCallback(tess, GLU_TESS_END, glEnd);
|
|
gluTessCallback(tess, GLU_TESS_COMBINE_DATA, combine_cb);
|
|
|
|
glEnable(GL_BLEND);
|
|
glColor4f(1.0, 1.0, 1.0, 0.05);
|
|
gluTessBeginPolygon (tess, data);
|
|
gluTessBeginContour (tess);
|
|
for (i=0; i<gt->points; i++, lasso+=2) {
|
|
GLdouble d_lasso[2] = {(GLdouble)lasso[0], (GLdouble)lasso[1]};
|
|
gluTessVertex (tess, d_lasso, lasso);
|
|
}
|
|
gluTessEndContour (tess);
|
|
gluTessEndPolygon (tess);
|
|
glDisable(GL_BLEND);
|
|
|
|
free_tess_data(tess, data);
|
|
|
|
glEnable(GL_LINE_STIPPLE);
|
|
glColor3ub(96, 96, 96);
|
|
glLineStipple(1, 0xAAAA);
|
|
glBegin(GL_LINE_STRIP);
|
|
lasso= (short *)gt->customdata;
|
|
for(i=0; i<gt->points; i++, lasso+=2)
|
|
glVertex2sv(lasso);
|
|
if(gt->type==WM_GESTURE_LASSO)
|
|
glVertex2sv((short *)gt->customdata);
|
|
glEnd();
|
|
|
|
glColor3ub(255, 255, 255);
|
|
glLineStipple(1, 0x5555);
|
|
glBegin(GL_LINE_STRIP);
|
|
lasso= (short *)gt->customdata;
|
|
for(i=0; i<gt->points; i++, lasso+=2)
|
|
glVertex2sv(lasso);
|
|
if(gt->type==WM_GESTURE_LASSO)
|
|
glVertex2sv((short *)gt->customdata);
|
|
glEnd();
|
|
|
|
glDisable(GL_LINE_STIPPLE);
|
|
|
|
}
|
|
|
|
static void wm_gesture_draw_cross(wmWindow *win, wmGesture *gt)
|
|
{
|
|
rcti *rect= (rcti *)gt->customdata;
|
|
|
|
glEnable(GL_LINE_STIPPLE);
|
|
glColor3ub(96, 96, 96);
|
|
glLineStipple(1, 0xCCCC);
|
|
sdrawline(rect->xmin - win->sizex, rect->ymin, rect->xmin + win->sizex, rect->ymin);
|
|
sdrawline(rect->xmin, rect->ymin - win->sizey, rect->xmin, rect->ymin + win->sizey);
|
|
|
|
glColor3ub(255, 255, 255);
|
|
glLineStipple(1, 0x3333);
|
|
sdrawline(rect->xmin - win->sizex, rect->ymin, rect->xmin + win->sizex, rect->ymin);
|
|
sdrawline(rect->xmin, rect->ymin - win->sizey, rect->xmin, rect->ymin + win->sizey);
|
|
glDisable(GL_LINE_STIPPLE);
|
|
}
|
|
|
|
/* called in wm_draw.c */
|
|
void wm_gesture_draw(wmWindow *win)
|
|
{
|
|
wmGesture *gt= (wmGesture *)win->gesture.first;
|
|
|
|
for(; gt; gt= gt->next) {
|
|
/* all in subwindow space */
|
|
wmSubWindowSet(win, gt->swinid);
|
|
wmOrthoPixelSpace();
|
|
|
|
if(gt->type==WM_GESTURE_RECT)
|
|
wm_gesture_draw_rect(win, gt);
|
|
else if(gt->type==WM_GESTURE_TWEAK)
|
|
wm_gesture_draw_line(win, gt);
|
|
else if(gt->type==WM_GESTURE_CIRCLE)
|
|
wm_gesture_draw_circle(win, gt);
|
|
else if(gt->type==WM_GESTURE_CROSS_RECT) {
|
|
if(gt->mode==1)
|
|
wm_gesture_draw_rect(win, gt);
|
|
else
|
|
wm_gesture_draw_cross(win, gt);
|
|
}
|
|
else if(gt->type==WM_GESTURE_LINES)
|
|
wm_gesture_draw_lasso(win, gt);
|
|
else if(gt->type==WM_GESTURE_LASSO)
|
|
wm_gesture_draw_lasso(win, gt);
|
|
}
|
|
}
|
|
|
|
void wm_gesture_tag_redraw(bContext *C)
|
|
{
|
|
wmWindow *win= CTX_wm_window(C);
|
|
bScreen *screen= CTX_wm_screen(C);
|
|
ARegion *ar= CTX_wm_region(C);
|
|
|
|
if(screen)
|
|
screen->do_draw_gesture= 1;
|
|
if(ar && win->drawmethod != USER_DRAW_TRIPLE)
|
|
ED_region_tag_redraw(ar);
|
|
}
|
|
|