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c752ec9fc458f6fd1fc0ae7a156d33bf86e73eff
blender-archive/source/blender/editors/space_view3d/view3d_draw.c

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2.5 Drawing and viewing code for view3d back (no not objects :). Quick test: converted 2250 ugly lines of code in 2.5 hours. With about 300k lines todo, this will be 333 hours = 30 days? Whoa!
2008-12-18 17:38:21 +00:00
/**
* $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 *****
*/
#include <string.h>
#include <stdio.h>
#include <math.h>
#include "DNA_action_types.h"
#include "DNA_armature_types.h"
#include "DNA_camera_types.h"
#include "DNA_key_types.h"
#include "DNA_object_types.h"
#include "DNA_space_types.h"
#include "DNA_scene_types.h"
#include "DNA_screen_types.h"
#include "DNA_userdef_types.h"
#include "DNA_view3d_types.h"
#include "DNA_world_types.h"
#include "MEM_guardedalloc.h"
#include "BLI_blenlib.h"
#include "BLI_arithb.h"
#include "BLI_rand.h"
#include "BKE_anim.h"
#include "BKE_context.h"
#include "BKE_image.h"
#include "BKE_ipo.h"
#include "BKE_key.h"
#include "BKE_object.h"
#include "BKE_global.h"
#include "BKE_scene.h"
#include "BKE_screen.h"
#include "BKE_utildefines.h"
#include "RE_pipeline.h" // make_stars
#include "IMB_imbuf_types.h"
#include "IMB_imbuf.h"
#include "BIF_gl.h"
#include "BIF_glutil.h"
#include "BMF_Api.h"
#include "WM_api.h"
#include "ED_screen.h"
#include "ED_util.h"
#include "UI_interface.h"
#include "UI_interface_icons.h"
#include "UI_resources.h"
#include "UI_view2d.h"
#include "view3d_intern.h" // own include
static void star_stuff_init_func(void)
{
cpack(-1);
glPointSize(1.0);
glBegin(GL_POINTS);
}
static void star_stuff_vertex_func(float* i)
{
glVertex3fv(i);
}
static void star_stuff_term_func(void)
{
glEnd();
}
void circf(float x, float y, float rad)
{
GLUquadricObj *qobj = gluNewQuadric();
gluQuadricDrawStyle(qobj, GLU_FILL);
glPushMatrix();
glTranslatef(x, y, 0.);
gluDisk( qobj, 0.0, rad, 32, 1);
glPopMatrix();
gluDeleteQuadric(qobj);
}
void circ(float x, float y, float rad)
{
GLUquadricObj *qobj = gluNewQuadric();
gluQuadricDrawStyle(qobj, GLU_SILHOUETTE);
glPushMatrix();
glTranslatef(x, y, 0.);
gluDisk( qobj, 0.0, rad, 32, 1);
glPopMatrix();
gluDeleteQuadric(qobj);
}
/* ********* custom clipping *********** */
static void view3d_draw_clipping(View3D *v3d)
{
BoundBox *bb= v3d->clipbb;
UI_ThemeColorShade(TH_BACK, -8);
glBegin(GL_QUADS);
glVertex3fv(bb->vec[0]); glVertex3fv(bb->vec[1]); glVertex3fv(bb->vec[2]); glVertex3fv(bb->vec[3]);
glVertex3fv(bb->vec[0]); glVertex3fv(bb->vec[4]); glVertex3fv(bb->vec[5]); glVertex3fv(bb->vec[1]);
glVertex3fv(bb->vec[4]); glVertex3fv(bb->vec[7]); glVertex3fv(bb->vec[6]); glVertex3fv(bb->vec[5]);
glVertex3fv(bb->vec[7]); glVertex3fv(bb->vec[3]); glVertex3fv(bb->vec[2]); glVertex3fv(bb->vec[6]);
glVertex3fv(bb->vec[1]); glVertex3fv(bb->vec[5]); glVertex3fv(bb->vec[6]); glVertex3fv(bb->vec[2]);
glVertex3fv(bb->vec[7]); glVertex3fv(bb->vec[4]); glVertex3fv(bb->vec[0]); glVertex3fv(bb->vec[3]);
glEnd();
}
void view3d_set_clipping(View3D *v3d)
{
double plane[4];
int a;
for(a=0; a<4; a++) {
QUATCOPY(plane, v3d->clip[a]);
glClipPlane(GL_CLIP_PLANE0+a, plane);
glEnable(GL_CLIP_PLANE0+a);
}
}
void view3d_clr_clipping(void)
{
int a;
for(a=0; a<4; a++) {
glDisable(GL_CLIP_PLANE0+a);
}
}
int view3d_test_clipping(View3D *v3d, float *vec)
{
/* vec in world coordinates, returns 1 if clipped */
float view[3];
VECCOPY(view, vec);
if(0.0f < v3d->clip[0][3] + INPR(view, v3d->clip[0]))
if(0.0f < v3d->clip[1][3] + INPR(view, v3d->clip[1]))
if(0.0f < v3d->clip[2][3] + INPR(view, v3d->clip[2]))
if(0.0f < v3d->clip[3][3] + INPR(view, v3d->clip[3]))
return 0;
return 1;
}
/* ********* end custom clipping *********** */
static void drawgrid_draw(ARegion *ar, float wx, float wy, float x, float y, float dx)
{
float fx, fy;
x+= (wx);
y+= (wy);
fx= x/dx;
fx= x-dx*floor(fx);
while(fx< ar->winx) {
fdrawline(fx, 0.0, fx, (float)ar->winy);
fx+= dx;
}
fy= y/dx;
fy= y-dx*floor(fy);
while(fy< ar->winy) {
fdrawline(0.0, fy, (float)ar->winx, fy);
fy+= dx;
}
}
// not intern, called in editobject for constraint axis too
void make_axis_color(char *col, char *col2, char axis)
{
if(axis=='x') {
col2[0]= col[0]>219?255:col[0]+36;
col2[1]= col[1]<26?0:col[1]-26;
col2[2]= col[2]<26?0:col[2]-26;
}
else if(axis=='y') {
col2[0]= col[0]<46?0:col[0]-36;
col2[1]= col[1]>189?255:col[1]+66;
col2[2]= col[2]<46?0:col[2]-36;
}
else {
col2[0]= col[0]<26?0:col[0]-26;
col2[1]= col[1]<26?0:col[1]-26;
col2[2]= col[2]>209?255:col[2]+46;
}
}
static void drawgrid(ARegion *ar, View3D *v3d)
{
/* extern short bgpicmode; */
float wx, wy, x, y, fw, fx, fy, dx;
float vec4[4];
char col[3], col2[3];
short sublines = v3d->gridsubdiv;
vec4[0]=vec4[1]=vec4[2]=0.0;
vec4[3]= 1.0;
Mat4MulVec4fl(v3d->persmat, vec4);
fx= vec4[0];
fy= vec4[1];
fw= vec4[3];
wx= (ar->winx/2.0); /* because of rounding errors, grid at wrong location */
wy= (ar->winy/2.0);
x= (wx)*fx/fw;
y= (wy)*fy/fw;
vec4[0]=vec4[1]=v3d->grid;
vec4[2]= 0.0;
vec4[3]= 1.0;
Mat4MulVec4fl(v3d->persmat, vec4);
fx= vec4[0];
fy= vec4[1];
fw= vec4[3];
dx= fabs(x-(wx)*fx/fw);
if(dx==0) dx= fabs(y-(wy)*fy/fw);
glDepthMask(0); // disable write in zbuffer
/* check zoom out */
UI_ThemeColor(TH_GRID);
if(dx<6.0) {
v3d->gridview*= sublines;
dx*= sublines;
if(dx<6.0) {
v3d->gridview*= sublines;
dx*= sublines;
if(dx<6.0) {
v3d->gridview*= sublines;
dx*=sublines;
if(dx<6.0);
else {
UI_ThemeColor(TH_GRID);
drawgrid_draw(ar, wx, wy, x, y, dx);
}
}
else { // start blending out
UI_ThemeColorBlend(TH_BACK, TH_GRID, dx/60.0);
drawgrid_draw(ar, wx, wy, x, y, dx);
UI_ThemeColor(TH_GRID);
drawgrid_draw(ar, wx, wy, x, y, sublines*dx);
}
}
else { // start blending out (6 < dx < 60)
UI_ThemeColorBlend(TH_BACK, TH_GRID, dx/60.0);
drawgrid_draw(ar, wx, wy, x, y, dx);
UI_ThemeColor(TH_GRID);
drawgrid_draw(ar, wx, wy, x, y, sublines*dx);
}
}
else {
if(dx>60.0) { // start blending in
v3d->gridview/= sublines;
dx/= sublines;
if(dx>60.0) { // start blending in
v3d->gridview/= sublines;
dx/= sublines;
if(dx>60.0) {
UI_ThemeColor(TH_GRID);
drawgrid_draw(ar, wx, wy, x, y, dx);
}
else {
UI_ThemeColorBlend(TH_BACK, TH_GRID, dx/60.0);
drawgrid_draw(ar, wx, wy, x, y, dx);
UI_ThemeColor(TH_GRID);
drawgrid_draw(ar, wx, wy, x, y, dx*sublines);
}
}
else {
UI_ThemeColorBlend(TH_BACK, TH_GRID, dx/60.0);
drawgrid_draw(ar, wx, wy, x, y, dx);
UI_ThemeColor(TH_GRID);
drawgrid_draw(ar, wx, wy, x, y, dx*sublines);
}
}
else {
UI_ThemeColorBlend(TH_BACK, TH_GRID, dx/60.0);
drawgrid_draw(ar, wx, wy, x, y, dx);
UI_ThemeColor(TH_GRID);
drawgrid_draw(ar, wx, wy, x, y, dx*sublines);
}
}
x+= (wx);
y+= (wy);
UI_GetThemeColor3ubv(TH_GRID, col);
setlinestyle(0);
/* center cross */
if(v3d->view==3) make_axis_color(col, col2, 'y');
else make_axis_color(col, col2, 'x');
glColor3ubv((GLubyte *)col2);
fdrawline(0.0, y, (float)ar->winx, y);
if(v3d->view==7) make_axis_color(col, col2, 'y');
else make_axis_color(col, col2, 'z');
glColor3ubv((GLubyte *)col2);
fdrawline(x, 0.0, x, (float)ar->winy);
glDepthMask(1); // enable write in zbuffer
}
static void drawfloor(View3D *v3d)
{
float vert[3], grid;
int a, gridlines, emphasise;
char col[3], col2[3];
short draw_line = 0;
vert[2]= 0.0;
if(v3d->gridlines<3) return;
if(v3d->zbuf && G.obedit) glDepthMask(0); // for zbuffer-select
gridlines= v3d->gridlines/2;
grid= gridlines*v3d->grid;
UI_GetThemeColor3ubv(TH_GRID, col);
UI_GetThemeColor3ubv(TH_BACK, col2);
/* emphasise division lines lighter instead of darker, if background is darker than grid */
if ( ((col[0]+col[1]+col[2])/3+10) > (col2[0]+col2[1]+col2[2])/3 )
emphasise = 20;
else
emphasise = -10;
/* draw the Y axis and/or grid lines */
for(a= -gridlines;a<=gridlines;a++) {
if(a==0) {
/* check for the 'show Y axis' preference */
if (v3d->gridflag & V3D_SHOW_Y) {
make_axis_color(col, col2, 'y');
glColor3ubv((GLubyte *)col2);
draw_line = 1;
} else if (v3d->gridflag & V3D_SHOW_FLOOR) {
UI_ThemeColorShade(TH_GRID, emphasise);
} else {
draw_line = 0;
}
} else {
/* check for the 'show grid floor' preference */
if (v3d->gridflag & V3D_SHOW_FLOOR) {
if( (a % 10)==0) {
UI_ThemeColorShade(TH_GRID, emphasise);
}
else UI_ThemeColorShade(TH_GRID, 10);
draw_line = 1;
} else {
draw_line = 0;
}
}
if (draw_line) {
glBegin(GL_LINE_STRIP);
vert[0]= a*v3d->grid;
vert[1]= grid;
glVertex3fv(vert);
vert[1]= -grid;
glVertex3fv(vert);
glEnd();
}
}
/* draw the X axis and/or grid lines */
for(a= -gridlines;a<=gridlines;a++) {
if(a==0) {
/* check for the 'show X axis' preference */
if (v3d->gridflag & V3D_SHOW_X) {
make_axis_color(col, col2, 'x');
glColor3ubv((GLubyte *)col2);
draw_line = 1;
} else if (v3d->gridflag & V3D_SHOW_FLOOR) {
UI_ThemeColorShade(TH_GRID, emphasise);
} else {
draw_line = 0;
}
} else {
/* check for the 'show grid floor' preference */
if (v3d->gridflag & V3D_SHOW_FLOOR) {
if( (a % 10)==0) {
UI_ThemeColorShade(TH_GRID, emphasise);
}
else UI_ThemeColorShade(TH_GRID, 10);
draw_line = 1;
} else {
draw_line = 0;
}
}
if (draw_line) {
glBegin(GL_LINE_STRIP);
vert[1]= a*v3d->grid;
vert[0]= grid;
glVertex3fv(vert );
vert[0]= -grid;
glVertex3fv(vert);
glEnd();
}
}
/* draw the Z axis line */
/* check for the 'show Z axis' preference */
if (v3d->gridflag & V3D_SHOW_Z) {
make_axis_color(col, col2, 'z');
glColor3ubv((GLubyte *)col2);
glBegin(GL_LINE_STRIP);
vert[0]= 0;
vert[1]= 0;
vert[2]= grid;
glVertex3fv(vert );
vert[2]= -grid;
glVertex3fv(vert);
glEnd();
}
if(v3d->zbuf && G.obedit) glDepthMask(1);
}
static void drawcursor(Scene *scene, ARegion *ar, View3D *v3d)
{
short mx,my,co[2];
int flag;
/* we dont want the clipping for cursor */
flag= v3d->flag;
v3d->flag= 0;
project_short(ar, v3d, give_cursor(scene, v3d), co);
v3d->flag= flag;
mx = co[0];
my = co[1];
if(mx!=IS_CLIPPED) {
setlinestyle(0);
cpack(0xFF);
circ((float)mx, (float)my, 10.0);
setlinestyle(4);
cpack(0xFFFFFF);
circ((float)mx, (float)my, 10.0);
setlinestyle(0);
cpack(0x0);
sdrawline(mx-20, my, mx-5, my);
sdrawline(mx+5, my, mx+20, my);
sdrawline(mx, my-20, mx, my-5);
sdrawline(mx, my+5, mx, my+20);
}
}
/* Draw a live substitute of the view icon, which is always shown */
static void draw_view_axis(View3D *v3d)
{
const float k = U.rvisize; /* axis size */
const float toll = 0.5; /* used to see when view is quasi-orthogonal */
const float start = k + 1.0; /* axis center in screen coordinates, x=y */
float ydisp = 0.0; /* vertical displacement to allow obj info text */
/* rvibright ranges approx. from original axis icon color to gizmo color */
float bright = U.rvibright / 15.0f;
unsigned char col[3];
unsigned char gridcol[3];
float colf[3];
float vec[4];
float dx, dy;
float h, s, v;
/* thickness of lines is proportional to k */
/* (log(k)-1) gives a more suitable thickness, but fps decreased by about 3 fps */
glLineWidth(k / 10);
//glLineWidth(log(k)-1); // a bit slow
UI_GetThemeColor3ubv(TH_GRID, (char *)gridcol);
/* X */
vec[0] = vec[3] = 1;
vec[1] = vec[2] = 0;
QuatMulVecf(v3d->viewquat, vec);
make_axis_color((char *)gridcol, (char *)col, 'x');
rgb_to_hsv(col[0]/255.0f, col[1]/255.0f, col[2]/255.0f, &h, &s, &v);
s = s<0.5 ? s+0.5 : 1.0;
v = 0.3;
v = (v<1.0-(bright) ? v+bright : 1.0);
hsv_to_rgb(h, s, v, colf, colf+1, colf+2);
glColor3fv(colf);
dx = vec[0] * k;
dy = vec[1] * k;
fdrawline(start, start + ydisp, start + dx, start + dy + ydisp);
if (fabs(dx) > toll || fabs(dy) > toll) {
glRasterPos2i(start + dx + 2, start + dy + ydisp + 2);
BMF_DrawString(G.fonts, "x");
}
/* Y */
vec[1] = vec[3] = 1;
vec[0] = vec[2] = 0;
QuatMulVecf(v3d->viewquat, vec);
make_axis_color((char *)gridcol, (char *)col, 'y');
rgb_to_hsv(col[0]/255.0f, col[1]/255.0f, col[2]/255.0f, &h, &s, &v);
s = s<0.5 ? s+0.5 : 1.0;
v = 0.3;
v = (v<1.0-(bright) ? v+bright : 1.0);
hsv_to_rgb(h, s, v, colf, colf+1, colf+2);
glColor3fv(colf);
dx = vec[0] * k;
dy = vec[1] * k;
fdrawline(start, start + ydisp, start + dx, start + dy + ydisp);
if (fabs(dx) > toll || fabs(dy) > toll) {
glRasterPos2i(start + dx + 2, start + dy + ydisp + 2);
BMF_DrawString(G.fonts, "y");
}
/* Z */
vec[2] = vec[3] = 1;
vec[1] = vec[0] = 0;
QuatMulVecf(v3d->viewquat, vec);
make_axis_color((char *)gridcol, (char *)col, 'z');
rgb_to_hsv(col[0]/255.0f, col[1]/255.0f, col[2]/255.0f, &h, &s, &v);
s = s<0.5 ? s+0.5 : 1.0;
v = 0.5;
v = (v<1.0-(bright) ? v+bright : 1.0);
hsv_to_rgb(h, s, v, colf, colf+1, colf+2);
glColor3fv(colf);
dx = vec[0] * k;
dy = vec[1] * k;
fdrawline(start, start + ydisp, start + dx, start + dy + ydisp);
if (fabs(dx) > toll || fabs(dy) > toll) {
glRasterPos2i(start + dx + 2, start + dy + ydisp + 2);
BMF_DrawString(G.fonts, "z");
}
/* restore line-width */
glLineWidth(1.0);
}
static void draw_view_icon(View3D *v3d)
{
BIFIconID icon;
if(v3d->view==7) icon= ICON_AXIS_TOP;
else if(v3d->view==1) icon= ICON_AXIS_FRONT;
else if(v3d->view==3) icon= ICON_AXIS_SIDE;
else return ;
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
UI_icon_draw(5.0, 5.0, icon);
glDisable(GL_BLEND);
}
char *view3d_get_name(View3D *v3d)
{
char *name = NULL;
switch (v3d->view) {
case 1:
if (v3d->persp == V3D_ORTHO)
name = (v3d->flag2 & V3D_OPP_DIRECTION_NAME) ? "Back Ortho" : "Front Ortho";
else
name = (v3d->flag2 & V3D_OPP_DIRECTION_NAME) ? "Back Persp" : "Front Persp";
break;
case 3:
if (v3d->persp == V3D_ORTHO)
name = (v3d->flag2 & V3D_OPP_DIRECTION_NAME) ? "Left Ortho" : "Right Ortho";
else
name = (v3d->flag2 & V3D_OPP_DIRECTION_NAME) ? "Left Persp" : "Right Persp";
break;
case 7:
if (v3d->persp == V3D_ORTHO)
name = (v3d->flag2 & V3D_OPP_DIRECTION_NAME) ? "Bottom Ortho" : "Top Ortho";
else
name = (v3d->flag2 & V3D_OPP_DIRECTION_NAME) ? "Bottom Persp" : "Top Persp";
break;
default:
if (v3d->persp==V3D_CAMOB) {
if ((v3d->camera) && (v3d->camera->type == OB_CAMERA)) {
Camera *cam;
cam = v3d->camera->data;
name = (cam->type != CAM_ORTHO) ? "Camera Persp" : "Camera Ortho";
} else {
name = "Object as Camera";
}
} else {
name = (v3d->persp == V3D_ORTHO) ? "User Ortho" : "User Persp";
}
break;
}
return name;
}
static void draw_viewport_name(ARegion *ar, View3D *v3d)
{
char *name = view3d_get_name(v3d);
char *printable = NULL;
if (v3d->localview) {
printable = malloc(strlen(name) + strlen(" (Local)_")); /* '_' gives space for '\0' */
strcpy(printable, name);
strcat(printable, " (Local)");
} else {
printable = name;
}
if (printable) {
UI_ThemeColor(TH_TEXT_HI);
glRasterPos2i(10, ar->winy-20);
BMF_DrawString(G.fonts, printable);
}
if (v3d->localview) {
free(printable);
}
}
static char *get_cfra_marker_name(Scene *scene)
{
ListBase *markers= &scene->markers;
TimeMarker *m1, *m2;
/* search through markers for match */
for (m1=markers->first, m2=markers->last; m1 && m2; m1=m1->next, m2=m2->prev) {
if (m1->frame==CFRA)
return m1->name;
if (m1 == m2)
break;
if (m2->frame==CFRA)
return m2->name;
}
return NULL;
}
/* draw info beside axes in bottom left-corner:
* framenum, object name, bone name (if available), marker name (if available)
*/
static void draw_selected_name(Scene *scene, Object *ob, View3D *v3d)
{
char info[256], *markern;
short offset=30;
/* get name of marker on current frame (if available) */
markern= get_cfra_marker_name(scene);
/* check if there is an object */
if(ob) {
/* name(s) to display depends on type of object */
if(ob->type==OB_ARMATURE) {
bArmature *arm= ob->data;
char *name= NULL;
/* show name of active bone too (if possible) */
if(ob==G.obedit) {
// XXX EditBone *ebo;
// for (ebo=G.edbo.first; ebo; ebo=ebo->next){
// if ((ebo->flag & BONE_ACTIVE) && (ebo->layer & arm->layer)) {
// name= ebo->name;
// break;
// }
// }
}
else if(ob->pose && (ob->flag & OB_POSEMODE)) {
bPoseChannel *pchan;
for(pchan= ob->pose->chanbase.first; pchan; pchan= pchan->next) {
if((pchan->bone->flag & BONE_ACTIVE) && (pchan->bone->layer & arm->layer)) {
name= pchan->name;
break;
}
}
}
if(name && markern)
sprintf(info, "(%d) %s %s <%s>", CFRA, ob->id.name+2, name, markern);
else if(name)
sprintf(info, "(%d) %s %s", CFRA, ob->id.name+2, name);
else
sprintf(info, "(%d) %s", CFRA, ob->id.name+2);
}
else if(ELEM3(ob->type, OB_MESH, OB_LATTICE, OB_CURVE)) {
Key *key= NULL;
KeyBlock *kb = NULL;
char shapes[75];
/* try to display active shapekey too */
shapes[0] = 0;
key = ob_get_key(ob);
if(key){
kb = BLI_findlink(&key->block, ob->shapenr-1);
if(kb){
sprintf(shapes, ": %s ", kb->name);
if(ob->shapeflag == OB_SHAPE_LOCK){
sprintf(shapes, "%s (Pinned)",shapes);
}
}
}
if(markern)
sprintf(info, "(%d) %s %s <%s>", CFRA, ob->id.name+2, shapes, markern);
else
sprintf(info, "(%d) %s %s", CFRA, ob->id.name+2, shapes);
}
else {
/* standard object */
if (markern)
sprintf(info, "(%d) %s <%s>", CFRA, ob->id.name+2, markern);
else
sprintf(info, "(%d) %s", CFRA, ob->id.name+2);
}
/* colour depends on whether there is a keyframe */
// XXX if (id_frame_has_keyframe((ID *)ob, frame_to_float(CFRA), v3d->keyflags))
// UI_ThemeColor(TH_VERTEX_SELECT);
// else
UI_ThemeColor(TH_TEXT_HI);
}
else {
/* no object */
if (markern)
sprintf(info, "(%d) <%s>", CFRA, markern);
else
sprintf(info, "(%d)", CFRA);
/* colour is always white */
UI_ThemeColor(TH_TEXT_HI);
}
if (U.uiflag & USER_SHOW_ROTVIEWICON)
offset = 14 + (U.rvisize * 2);
glRasterPos2i(offset, 10);
BMF_DrawString(G.fonts, info);
}
static void view3d_get_viewborder_size(Scene *scene, ARegion *ar, float size_r[2])
{
float winmax= MAX2(ar->winx, ar->winy);
float aspect= (float) (scene->r.xsch*scene->r.xasp)/(scene->r.ysch*scene->r.yasp);
if(aspect>1.0) {
size_r[0]= winmax;
size_r[1]= winmax/aspect;
} else {
size_r[0]= winmax*aspect;
size_r[1]= winmax;
}
}
void calc_viewborder(Scene *scene, ARegion *ar, View3D *v3d, rctf *viewborder_r)
{
float zoomfac, size[2];
float dx= 0.0f, dy= 0.0f;
view3d_get_viewborder_size(scene, ar, size);
/* magic zoom calculation, no idea what
* it signifies, if you find out, tell me! -zr
*/
/* simple, its magic dude!
* well, to be honest, this gives a natural feeling zooming
* with multiple keypad presses (ton)
*/
zoomfac= (M_SQRT2 + v3d->camzoom/50.0);
zoomfac= (zoomfac*zoomfac)*0.25;
size[0]= size[0]*zoomfac;
size[1]= size[1]*zoomfac;
/* center in window */
viewborder_r->xmin= 0.5*ar->winx - 0.5*size[0];
viewborder_r->ymin= 0.5*ar->winy - 0.5*size[1];
viewborder_r->xmax= viewborder_r->xmin + size[0];
viewborder_r->ymax= viewborder_r->ymin + size[1];
dx= ar->winx*v3d->camdx*zoomfac*2.0f;
dy= ar->winy*v3d->camdy*zoomfac*2.0f;
/* apply offset */
viewborder_r->xmin-= dx;
viewborder_r->ymin-= dy;
viewborder_r->xmax-= dx;
viewborder_r->ymax-= dy;
if(v3d->camera && v3d->camera->type==OB_CAMERA) {
Camera *cam= v3d->camera->data;
float w = viewborder_r->xmax - viewborder_r->xmin;
float h = viewborder_r->ymax - viewborder_r->ymin;
float side = MAX2(w, h);
viewborder_r->xmin+= cam->shiftx*side;
viewborder_r->xmax+= cam->shiftx*side;
viewborder_r->ymin+= cam->shifty*side;
viewborder_r->ymax+= cam->shifty*side;
}
}
void view3d_set_1_to_1_viewborder(Scene *scene, ARegion *ar, View3D *v3d)
{
float size[2];
int im_width= (scene->r.size*scene->r.xsch)/100;
view3d_get_viewborder_size(scene, ar, size);
v3d->camzoom= (sqrt(4.0*im_width/size[0]) - M_SQRT2)*50.0;
v3d->camzoom= CLAMPIS(v3d->camzoom, -30, 300);
}
static void drawviewborder_flymode(ARegion *ar)
{
/* draws 4 edge brackets that frame the safe area where the
mouse can move during fly mode without spinning the view */
float x1, x2, y1, y2;
x1= 0.45*(float)ar->winx;
y1= 0.45*(float)ar->winy;
x2= 0.55*(float)ar->winx;
y2= 0.55*(float)ar->winy;
cpack(0);
glBegin(GL_LINES);
/* bottom left */
glVertex2f(x1,y1);
glVertex2f(x1,y1+5);
glVertex2f(x1,y1);
glVertex2f(x1+5,y1);
/* top right */
glVertex2f(x2,y2);
glVertex2f(x2,y2-5);
glVertex2f(x2,y2);
glVertex2f(x2-5,y2);
/* top left */
glVertex2f(x1,y2);
glVertex2f(x1,y2-5);
glVertex2f(x1,y2);
glVertex2f(x1+5,y2);
/* bottom right */
glVertex2f(x2,y1);
glVertex2f(x2,y1+5);
glVertex2f(x2,y1);
glVertex2f(x2-5,y1);
glEnd();
}
static void drawviewborder(Scene *scene, ARegion *ar, View3D *v3d)
{
extern void gl_round_box(int mode, float minx, float miny, float maxx, float maxy, float rad); // interface_panel.c
float fac, a;
float x1, x2, y1, y2;
float x3, y3, x4, y4;
rctf viewborder;
Camera *ca= NULL;
if(v3d->camera==NULL)
return;
if(v3d->camera->type==OB_CAMERA)
ca = v3d->camera->data;
calc_viewborder(scene, ar, v3d, &viewborder);
x1= viewborder.xmin;
y1= viewborder.ymin;
x2= viewborder.xmax;
y2= viewborder.ymax;
/* passepartout, specified in camera edit buttons */
if (ca && (ca->flag & CAM_SHOWPASSEPARTOUT) && ca->passepartalpha > 0.000001) {
if (ca->passepartalpha == 1.0) {
glColor3f(0, 0, 0);
} else {
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
glEnable(GL_BLEND);
glColor4f(0, 0, 0, ca->passepartalpha);
}
if (x1 > 0.0)
glRectf(0.0, (float)ar->winy, x1, 0.0);
if (x2 < (float)ar->winx)
glRectf(x2, (float)ar->winy, (float)ar->winx, 0.0);
if (y2 < (float)ar->winy)
glRectf(x1, (float)ar->winy, x2, y2);
if (y2 > 0.0)
glRectf(x1, y1, x2, 0.0);
glDisable(GL_BLEND);
}
/* edge */
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
setlinestyle(0);
UI_ThemeColor(TH_BACK);
glRectf(x1, y1, x2, y2);
setlinestyle(3);
UI_ThemeColor(TH_WIRE);
glRectf(x1, y1, x2, y2);
/* camera name - draw in highlighted text color */
if (ca && (ca->flag & CAM_SHOWNAME)) {
UI_ThemeColor(TH_TEXT_HI);
glRasterPos2f(x1, y1-15);
BMF_DrawString(G.font, v3d->camera->id.name+2);
UI_ThemeColor(TH_WIRE);
}
/* border */
if(scene->r.mode & R_BORDER) {
cpack(0);
x3= x1+ scene->r.border.xmin*(x2-x1);
y3= y1+ scene->r.border.ymin*(y2-y1);
x4= x1+ scene->r.border.xmax*(x2-x1);
y4= y1+ scene->r.border.ymax*(y2-y1);
cpack(0x4040FF);
glRectf(x3, y3, x4, y4);
}
/* safety border */
if (ca && (ca->flag & CAM_SHOWTITLESAFE)) {
fac= 0.1;
a= fac*(x2-x1);
x1+= a;
x2-= a;
a= fac*(y2-y1);
y1+= a;
y2-= a;
UI_ThemeColorBlendShade(TH_WIRE, TH_BACK, 0.25, 0);
uiSetRoundBox(15);
gl_round_box(GL_LINE_LOOP, x1, y1, x2, y2, 12.0);
}
setlinestyle(0);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
static void draw_bgpic(Scene *scene, ARegion *ar, View3D *v3d)
{
BGpic *bgpic;
Image *ima;
ImBuf *ibuf= NULL;
float vec[4], fac, asp, zoomx, zoomy;
float x1, y1, x2, y2, cx, cy;
bgpic= v3d->bgpic;
if(bgpic==NULL) return;
ima= bgpic->ima;
if(ima)
ibuf= BKE_image_get_ibuf(ima, &bgpic->iuser);
if(ibuf==NULL || (ibuf->rect==NULL && ibuf->rect_float==NULL) )
return;
if(ibuf->channels!=4)
return;
if(ibuf->rect==NULL)
IMB_rect_from_float(ibuf);
if(v3d->persp==2) {
rctf vb;
calc_viewborder(scene, ar, v3d, &vb);
x1= vb.xmin;
y1= vb.ymin;
x2= vb.xmax;
y2= vb.ymax;
}
else {
float sco[2];
/* calc window coord */
initgrabz(v3d, 0.0, 0.0, 0.0);
window_to_3d(ar, v3d, vec, 1, 0);
fac= MAX3( fabs(vec[0]), fabs(vec[1]), fabs(vec[1]) );
fac= 1.0/fac;
asp= ( (float)ibuf->y)/(float)ibuf->x;
vec[0] = vec[1] = vec[2] = 0.0;
view3d_project_float(ar, vec, sco, v3d->persmat);
cx = sco[0];
cy = sco[1];
x1= cx+ fac*(bgpic->xof-bgpic->size);
y1= cy+ asp*fac*(bgpic->yof-bgpic->size);
x2= cx+ fac*(bgpic->xof+bgpic->size);
y2= cy+ asp*fac*(bgpic->yof+bgpic->size);
}
/* complete clip? */
if(x2 < 0 ) return;
if(y2 < 0 ) return;
if(x1 > ar->winx ) return;
if(y1 > ar->winy ) return;
zoomx= (x2-x1)/ibuf->x;
zoomy= (y2-y1)/ibuf->y;
/* for some reason; zoomlevels down refuses to use GL_ALPHA_SCALE */
if(zoomx < 1.0f || zoomy < 1.0f) {
float tzoom= MIN2(zoomx, zoomy);
int mip= 0;
if(ibuf->mipmap[0]==NULL)
IMB_makemipmap(ibuf, 0);
while(tzoom < 1.0f && mip<8 && ibuf->mipmap[mip]) {
tzoom*= 2.0f;
zoomx*= 2.0f;
zoomy*= 2.0f;
mip++;
}
if(mip>0)
ibuf= ibuf->mipmap[mip-1];
}
if(v3d->zbuf) glDisable(GL_DEPTH_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glaDefine2DArea(&ar->winrct);
glEnable(GL_BLEND);
glPixelZoom(zoomx, zoomy);
glColor4f(1.0, 1.0, 1.0, 1.0-bgpic->blend);
glaDrawPixelsTex(x1, y1, ibuf->x, ibuf->y, GL_UNSIGNED_BYTE, ibuf->rect);
glPixelZoom(1.0, 1.0);
glPixelTransferf(GL_ALPHA_SCALE, 1.0f);
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glDisable(GL_BLEND);
if(v3d->zbuf) glEnable(GL_DEPTH_TEST);
// XXX areawinset(ar->win); // restore viewport / scissor
}
void view3d_update_depths(ARegion *ar, View3D *v3d)
{
/* Create storage for, and, if necessary, copy depth buffer */
if(!v3d->depths) v3d->depths= MEM_callocN(sizeof(ViewDepths),"ViewDepths");
if(v3d->depths) {
ViewDepths *d= v3d->depths;
if(d->w != ar->winx ||
d->h != ar->winy ||
!d->depths) {
d->w= ar->winx;
d->h= ar->winy;
if(d->depths)
MEM_freeN(d->depths);
d->depths= MEM_mallocN(sizeof(float)*d->w*d->h,"View depths");
d->damaged= 1;
}
if(d->damaged) {
glReadPixels(ar->winrct.xmin,ar->winrct.ymin,d->w,d->h,
GL_DEPTH_COMPONENT,GL_FLOAT, d->depths);
glGetDoublev(GL_DEPTH_RANGE,d->depth_range);
d->damaged= 0;
}
}
}
/* Enable sculpting in wireframe mode by drawing sculpt object only to the depth buffer */
static void draw_sculpt_depths(Scene *scene, View3D *v3d)
{
Object *ob = OBACT;
int dt= MIN2(v3d->drawtype, ob->dt);
if(v3d->zbuf==0 && dt>OB_WIRE)
dt= OB_WIRE;
if(dt == OB_WIRE) {
GLboolean depth_on;
int orig_vdt = v3d->drawtype;
int orig_zbuf = v3d->zbuf;
int orig_odt = ob->dt;
glGetBooleanv(GL_DEPTH_TEST, &depth_on);
v3d->drawtype = ob->dt = OB_SOLID;
v3d->zbuf = 1;
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glEnable(GL_DEPTH_TEST);
// XXX draw_object(BASACT, 0);
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
if(!depth_on)
glDisable(GL_DEPTH_TEST);
v3d->drawtype = orig_vdt;
v3d->zbuf = orig_zbuf;
ob->dt = orig_odt;
}
}
void drawview3dspace(const bContext *C, ARegion *ar, View3D *v3d)
{
Base *base;
Object *ob;
Scene *scene= CTX_data_scene(C), *sce;
char retopo= 0, sculptparticle= 0;
Object *obact = OBACT;
/* update all objects, ipos, matrices, displists, etc. Flags set by depgraph or manual,
no layer check here, gets correct flushed */
/* sets first, we allow per definition current scene to have dependencies on sets */
if(scene->set) {
for(SETLOOPER(scene->set, base))
object_handle_update(base->object); // bke_object.h
}
v3d->lay_used = 0;
for(base= scene->base.first; base; base= base->next) {
object_handle_update(base->object); // bke_object.h
v3d->lay_used |= base->lay;
}
/* shadow buffers, before we setup matrices */
// if(draw_glsl_material(NULL, v3d->drawtype))
// gpu_update_lamps_shadows(scene, v3d);
setwinmatrixview3d(CTX_wm_window(C), v3d, ar->winx, ar->winy, NULL); /* 0= no pick rect */
setviewmatrixview3d(v3d); /* note: calls where_is_object for camera... */
Mat4MulMat4(v3d->persmat, v3d->viewmat, v3d->winmat);
Mat4Invert(v3d->persinv, v3d->persmat);
Mat4Invert(v3d->viewinv, v3d->viewmat);
/* calculate pixelsize factor once, is used for lamps and obcenters */
{
float len1, len2, vec[3];
VECCOPY(vec, v3d->persinv[0]);
len1= Normalize(vec);
VECCOPY(vec, v3d->persinv[1]);
len2= Normalize(vec);
v3d->pixsize= 2.0f*(len1>len2?len1:len2);
/* correct for window size */
if(ar->winx > ar->winy) v3d->pixsize/= (float)ar->winx;
else v3d->pixsize/= (float)ar->winy;
}
if(v3d->drawtype > OB_WIRE) {
float col[3];
UI_GetThemeColor3fv(TH_BACK, col);
glClearColor(col[0], col[1], col[2], 0.0);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
}
else {
float col[3];
UI_GetThemeColor3fv(TH_BACK, col);
glClearColor(col[0], col[1], col[2], 0.0);
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
}
wmLoadMatrix(CTX_wm_window(C), v3d->viewmat);
if(v3d->flag & V3D_CLIPPING)
view3d_draw_clipping(v3d);
/* set zbuffer after we draw clipping region */
if(v3d->drawtype > OB_WIRE) {
v3d->zbuf= TRUE;
glEnable(GL_DEPTH_TEST);
}
// needs to be done always, gridview is adjusted in drawgrid() now
v3d->gridview= v3d->grid;
if(v3d->view==0 || v3d->persp!=0) {
drawfloor(v3d);
if(v3d->persp==2) {
if(scene->world) {
if(scene->world->mode & WO_STARS) {
RE_make_stars(NULL, star_stuff_init_func, star_stuff_vertex_func,
star_stuff_term_func);
}
}
if(v3d->flag & V3D_DISPBGPIC) draw_bgpic(scene, ar, v3d);
}
}
else {
ED_region_pixelspace(C, ar);
drawgrid(ar, v3d);
/* XXX make function? replaces persp(1) */
glMatrixMode(GL_PROJECTION);
wmLoadMatrix(CTX_wm_window(C), v3d->winmat);
glMatrixMode(GL_MODELVIEW);
wmLoadMatrix(CTX_wm_window(C), v3d->viewmat);
if(v3d->flag & V3D_DISPBGPIC) {
draw_bgpic(scene, ar, v3d);
}
}
if(v3d->flag & V3D_CLIPPING)
view3d_set_clipping(v3d);
/* draw set first */
if(scene->set) {
for(SETLOOPER(scene->set, base)) {
if(v3d->lay & base->lay) {
UI_ThemeColorBlend(TH_WIRE, TH_BACK, 0.6f);
// XXX draw_object(base, DRAW_CONSTCOLOR|DRAW_SCENESET);
if(base->object->transflag & OB_DUPLI) {
// XXX draw_dupli_objects_color(v3d, base, TH_WIRE);
}
}
}
/* Transp and X-ray afterdraw stuff for sets is done later */
}
/* then draw not selected and the duplis, but skip editmode object */
for(base= scene->base.first; base; base= base->next) {
if(v3d->lay & base->lay) {
/* dupli drawing */
if(base->object->transflag & OB_DUPLI) {
// XXX draw_dupli_objects(v3d, base);
}
if((base->flag & SELECT)==0) {
// XXX if(base->object!=G.obedit) draw_object(base, 0);
}
}
}
// retopo= retopo_mesh_check() || retopo_curve_check();
// sculptparticle= (G.f & (G_SCULPTMODE|G_PARTICLEEDIT)) && !G.obedit;
if(retopo)
view3d_update_depths(ar, v3d);
/* draw selected and editmode */
for(base= scene->base.first; base; base= base->next) {
if(v3d->lay & base->lay) {
// if (base->object==G.obedit || ( base->flag & SELECT) )
// XXX draw_object(base, 0);
}
}
if(!retopo && sculptparticle && !(obact && (obact->dtx & OB_DRAWXRAY))) {
if(G.f & G_SCULPTMODE)
draw_sculpt_depths(scene, v3d);
view3d_update_depths(ar, v3d);
}
if(G.moving) {
// BIF_drawConstraint();
// if(G.obedit || (G.f & G_PARTICLEEDIT))
// BIF_drawPropCircle(); // only editmode and particles have proportional edit
// BIF_drawSnap();
}
// REEB_draw();
// if(scene->radio) RAD_drawall(v3d->drawtype>=OB_SOLID);
/* Transp and X-ray afterdraw stuff */
// view3d_draw_transp(v3d);
// view3d_draw_xray(v3d, 1); // clears zbuffer if it is used!
if(!retopo && sculptparticle && (obact && (OBACT->dtx & OB_DRAWXRAY))) {
if(G.f & G_SCULPTMODE)
draw_sculpt_depths(scene, v3d);
view3d_update_depths(ar, v3d);
}
if(v3d->flag & V3D_CLIPPING)
view3d_clr_clipping();
// BIF_draw_manipulator(ar);
if(v3d->zbuf) {
v3d->zbuf= FALSE;
glDisable(GL_DEPTH_TEST);
}
/* draw grease-pencil stuff */
// if (v3d->flag2 & V3D_DISPGP)
// draw_gpencil_3dview(ar, 1);
ED_region_pixelspace(C, ar);
/* Draw Sculpt Mode brush XXX (removed) */
// retopo_paint_view_update(v3d);
// retopo_draw_paint_lines();
/* Draw particle edit brush XXX (removed) */
if(v3d->persp>1) drawviewborder(scene, ar, v3d);
if(v3d->flag2 & V3D_FLYMODE) drawviewborder_flymode(ar);
/* draw grease-pencil stuff */
// if (v3d->flag2 & V3D_DISPGP)
// draw_gpencil_3dview(ar, 0);
if(!(G.f & G_PLAYANIM)) drawcursor(scene, ar, v3d);
if(U.uiflag & USER_SHOW_ROTVIEWICON)
draw_view_axis(v3d);
else
draw_view_icon(v3d);
/* XXX removed viewport fps */
if(U.uiflag & USER_SHOW_VIEWPORTNAME) {
draw_viewport_name(ar, v3d);
}
ob= OBACT;
if(U.uiflag & USER_DRAWVIEWINFO)
draw_selected_name(scene, ob, v3d);
// draw_area_emboss(ar);
/* XXX here was the blockhandlers for floating panels */
if(G.f & G_VERTEXPAINT || G.f & G_WEIGHTPAINT || G.f & G_TEXTUREPAINT) {
v3d->flag |= V3D_NEEDBACKBUFDRAW;
// XXX addafterqueue(ar->win, BACKBUFDRAW, 1);
}
// test for backbuf select
if(G.obedit && v3d->drawtype>OB_WIRE && (v3d->flag & V3D_ZBUF_SELECT)) {
v3d->flag |= V3D_NEEDBACKBUFDRAW;
// XXX if(afterqtest(ar->win, BACKBUFDRAW)==0) {
// addafterqueue(ar->win, BACKBUFDRAW, 1);
//}
}
#ifndef DISABLE_PYTHON
/* XXX here was scriptlink */
#endif
}
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