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blender-archive/source/blender/editors/space_node/node_draw.c

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/**
* $Id$
*
* ***** 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2008 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
* Contributor(s): Nathan Letwory
*
* ***** END GPL LICENSE BLOCK *****
*/
#include <math.h>
#include <stdio.h>
#include <string.h>
#include "DNA_node_types.h"
#include "DNA_material_types.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "DNA_space_types.h"
#include "DNA_screen_types.h"
#include "BLI_math.h"
#include "BLI_blenlib.h"
#include "BLI_threads.h"
#include "MEM_guardedalloc.h"
#include "BKE_context.h"
#include "BKE_depsgraph.h"
#include "BKE_global.h"
#include "BKE_image.h"
#include "BKE_library.h"
#include "BKE_main.h"
#include "BKE_material.h"
#include "BKE_node.h"
#include "BKE_object.h"
#include "BKE_texture.h"
#include "BKE_text.h"
#include "BKE_utildefines.h"
#include "BIF_gl.h"
#include "BIF_glutil.h"
#include "WM_api.h"
#include "WM_types.h"
#include "ED_gpencil.h"
#include "UI_interface.h"
#include "UI_interface_icons.h"
#include "UI_resources.h"
#include "UI_view2d.h"
#include "RNA_access.h"
#include "CMP_node.h"
#include "SHD_node.h"
#include "node_intern.h"
// XXX interface.h
extern void ui_dropshadow(rctf *rct, float radius, float aspect, int select);
extern void gl_round_box(int mode, float minx, float miny, float maxx, float maxy, float rad);
extern void ui_draw_tria_icon(float x, float y, char dir);
void ED_node_changed_update(ID *id, bNode *node)
{
bNodeTree *nodetree, *edittree;
int treetype;
node_tree_from_ID(id, &nodetree, &edittree, &treetype);
if(treetype==NTREE_SHADER) {
DAG_id_flush_update(id, 0);
WM_main_add_notifier(NC_MATERIAL|ND_SHADING, id);
}
else if(treetype==NTREE_COMPOSIT) {
NodeTagChanged(edittree, node);
/* don't use NodeTagIDChanged, it gives far too many recomposites for image, scene layers, ... */
node= node_tree_get_editgroup(nodetree);
if(node)
NodeTagIDChanged(nodetree, node->id);
WM_main_add_notifier(NC_SCENE|ND_NODES, id);
}
else if(treetype==NTREE_TEXTURE) {
DAG_id_flush_update(id, 0);
WM_main_add_notifier(NC_TEXTURE|ND_NODES, id);
}
}
static int has_nodetree(bNodeTree *ntree, bNodeTree *lookup)
{
bNode *node;
if(ntree == lookup)
return 1;
for(node=ntree->nodes.first; node; node=node->next)
if(node->type == NODE_GROUP && node->id)
if(has_nodetree((bNodeTree*)node->id, lookup))
return 1;
return 0;
}
void ED_node_generic_update(Main *bmain, Scene *scene, bNodeTree *ntree, bNode *node)
{
Material *ma;
Tex *tex;
Scene *sce;
/* look through all datablocks, to support groups */
for(ma=bmain->mat.first; ma; ma=ma->id.next)
if(ma->nodetree && ma->use_nodes && has_nodetree(ma->nodetree, ntree))
ED_node_changed_update(&ma->id, node);
for(tex=bmain->tex.first; tex; tex=tex->id.next)
if(tex->nodetree && tex->use_nodes && has_nodetree(tex->nodetree, ntree))
ED_node_changed_update(&tex->id, node);
for(sce=bmain->scene.first; sce; sce=sce->id.next)
if(sce->nodetree && sce->use_nodes && has_nodetree(sce->nodetree, ntree))
ED_node_changed_update(&sce->id, node);
if(ntree->type == NTREE_TEXTURE)
ntreeTexCheckCyclics(ntree);
}
static void do_node_internal_buttons(bContext *C, void *node_v, int event)
{
if(event==B_NODE_EXEC) {
SpaceNode *snode= CTX_wm_space_node(C);
if(snode && snode->id)
ED_node_changed_update(snode->id, node_v);
}
}
static void node_scaling_widget(int color_id, float aspect, float xmin, float ymin, float xmax, float ymax)
{
float dx;
float dy;
dx= 0.5f*(xmax-xmin);
dy= 0.5f*(ymax-ymin);
UI_ThemeColorShade(color_id, +30);
fdrawline(xmin, ymin, xmax, ymax);
fdrawline(xmin+dx, ymin, xmax, ymax-dy);
UI_ThemeColorShade(color_id, -10);
fdrawline(xmin, ymin+aspect, xmax, ymax+aspect);
fdrawline(xmin+dx, ymin+aspect, xmax, ymax-dy+aspect);
}
static void node_uiblocks_init(const bContext *C, bNodeTree *ntree)
{
bNode *node;
char str[32];
/* add node uiBlocks in reverse order - prevents events going to overlapping nodes */
/* process selected nodes first so they're at the start of the uiblocks list */
for(node= ntree->nodes.last; node; node= node->prev) {
if (node->flag & NODE_SELECT) {
/* ui block */
sprintf(str, "node buttons %p", node);
node->block= uiBeginBlock(C, CTX_wm_region(C), str, UI_EMBOSS);
uiBlockSetHandleFunc(node->block, do_node_internal_buttons, node);
}
}
/* then the rest */
for(node= ntree->nodes.last; node; node= node->prev) {
if (!(node->flag & (NODE_GROUP_EDIT|NODE_SELECT))) {
/* ui block */
sprintf(str, "node buttons %p", node);
node->block= uiBeginBlock(C, CTX_wm_region(C), str, UI_EMBOSS);
uiBlockSetHandleFunc(node->block, do_node_internal_buttons, node);
}
}
}
/* based on settings in node, sets drawing rect info. each redraw! */
static void node_update(const bContext *C, bNodeTree *ntree, bNode *node)
{
uiLayout *layout;
PointerRNA ptr;
bNodeSocket *nsock;
float dy= node->locy;
int buty;
/* header */
dy-= NODE_DY;
/* little bit space in top */
if(node->outputs.first)
dy-= NODE_DYS/2;
/* output sockets */
for(nsock= node->outputs.first; nsock; nsock= nsock->next) {
if(!(nsock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL))) {
nsock->locx= node->locx + node->width;
nsock->locy= dy - NODE_DYS;
dy-= NODE_DY;
}
}
node->prvr.xmin= node->locx + NODE_DYS;
node->prvr.xmax= node->locx + node->width- NODE_DYS;
/* preview rect? */
if(node->flag & NODE_PREVIEW) {
/* only recalculate size when there's a preview actually, otherwise we use stored result */
BLI_lock_thread(LOCK_PREVIEW);
if(node->preview && node->preview->rect) {
float aspect= 1.0f;
if(node->preview && node->preview->xsize && node->preview->ysize)
aspect= (float)node->preview->ysize/(float)node->preview->xsize;
dy-= NODE_DYS/2;
node->prvr.ymax= dy;
if(aspect <= 1.0f)
node->prvr.ymin= dy - aspect*(node->width-NODE_DY);
else {
float dx= (node->width - NODE_DYS) - (node->width- NODE_DYS)/aspect; /* width correction of image */
node->prvr.ymin= dy - (node->width-NODE_DY);
node->prvr.xmin+= 0.5f*dx;
node->prvr.xmax-= 0.5f*dx;
}
dy= node->prvr.ymin - NODE_DYS/2;
/* make sure that maximums are bigger or equal to minimums */
if(node->prvr.xmax < node->prvr.xmin) SWAP(float, node->prvr.xmax, node->prvr.xmin);
if(node->prvr.ymax < node->prvr.ymin) SWAP(float, node->prvr.ymax, node->prvr.ymin);
}
else {
float oldh= node->prvr.ymax - node->prvr.ymin;
if(oldh==0.0f)
oldh= 0.6f*node->width-NODE_DY;
dy-= NODE_DYS/2;
node->prvr.ymax= dy;
node->prvr.ymin= dy - oldh;
dy= node->prvr.ymin - NODE_DYS/2;
}
BLI_unlock_thread(LOCK_PREVIEW);
}
/* XXX ugly hack, typeinfo for group is generated */
if(node->type == NODE_GROUP)
node->typeinfo->uifunc= node_buts_group;
/* buttons rect? */
if((node->flag & NODE_OPTIONS) && node->typeinfo->uifunc) {
dy-= NODE_DYS/2;
/* set this for uifunc() that don't use layout engine yet */
node->butr.xmin= 0;
node->butr.xmax= node->width - 2*NODE_DYS;
node->butr.ymin= 0;
node->butr.ymax= 0;
RNA_pointer_create(&ntree->id, &RNA_Node, node, &ptr);
layout= uiBlockLayout(node->block, UI_LAYOUT_VERTICAL, UI_LAYOUT_PANEL,
node->locx+NODE_DYS, dy, node->butr.xmax, 20, U.uistyles.first);
node->typeinfo->uifunc(layout, (bContext *)C, &ptr);
uiBlockEndAlign(node->block);
uiBlockLayoutResolve(node->block, NULL, &buty);
dy= buty - NODE_DYS/2;
}
/* input sockets */
for(nsock= node->inputs.first; nsock; nsock= nsock->next) {
if(!(nsock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL))) {
nsock->locx= node->locx;
nsock->locy= dy - NODE_DYS;
dy-= NODE_DY;
}
}
/* little bit space in end */
if(node->inputs.first || (node->flag & (NODE_OPTIONS|NODE_PREVIEW))==0 )
dy-= NODE_DYS/2;
node->totr.xmin= node->locx;
node->totr.xmax= node->locx + node->width;
node->totr.ymax= node->locy;
node->totr.ymin= dy;
}
/* based on settings in node, sets drawing rect info. each redraw! */
static void node_update_hidden(const bContext *C, bNode *node)
{
bNodeSocket *nsock;
float rad, drad, hiddenrad= HIDDEN_RAD;
int totin=0, totout=0, tot;
/* calculate minimal radius */
for(nsock= node->inputs.first; nsock; nsock= nsock->next)
if(!(nsock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL)))
totin++;
for(nsock= node->outputs.first; nsock; nsock= nsock->next)
if(!(nsock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL)))
totout++;
tot= MAX2(totin, totout);
if(tot>4) {
hiddenrad += 5.0f*(float)(tot-4);
}
node->totr.xmin= node->locx;
node->totr.xmax= node->locx + 3*hiddenrad + node->miniwidth;
node->totr.ymax= node->locy + (hiddenrad - 0.5f*NODE_DY);
node->totr.ymin= node->totr.ymax - 2*hiddenrad;
/* output sockets */
rad=drad= (float)M_PI/(1.0f + (float)totout);
for(nsock= node->outputs.first; nsock; nsock= nsock->next) {
if(!(nsock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL))) {
nsock->locx= node->totr.xmax - hiddenrad + (float)sin(rad)*hiddenrad;
nsock->locy= node->totr.ymin + hiddenrad + (float)cos(rad)*hiddenrad;
rad+= drad;
}
}
/* input sockets */
rad=drad= - (float)M_PI/(1.0f + (float)totin);
for(nsock= node->inputs.first; nsock; nsock= nsock->next) {
if(!(nsock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL))) {
nsock->locx= node->totr.xmin + hiddenrad + (float)sin(rad)*hiddenrad;
nsock->locy= node->totr.ymin + hiddenrad + (float)cos(rad)*hiddenrad;
rad+= drad;
}
}
}
static int node_get_colorid(bNode *node)
{
if(node->typeinfo->nclass==NODE_CLASS_INPUT)
return TH_NODE_IN_OUT;
if(node->typeinfo->nclass==NODE_CLASS_OUTPUT) {
if(node->flag & NODE_DO_OUTPUT)
return TH_NODE_IN_OUT;
else
return TH_NODE;
}
if(node->typeinfo->nclass==NODE_CLASS_CONVERTOR)
return TH_NODE_CONVERTOR;
if(ELEM3(node->typeinfo->nclass, NODE_CLASS_OP_COLOR, NODE_CLASS_OP_VECTOR, NODE_CLASS_OP_FILTER))
return TH_NODE_OPERATOR;
if(node->typeinfo->nclass==NODE_CLASS_GROUP)
return TH_NODE_GROUP;
return TH_NODE;
}
/* based on settings in node, sets drawing rect info. each redraw! */
/* note: this assumes only 1 group at a time is drawn (linked data) */
/* in node->totr the entire boundbox for the group is stored */
static void node_update_group(const bContext *C, bNodeTree *ntree, bNode *gnode)
{
bNodeTree *ngroup= (bNodeTree *)gnode->id;
bNode *node;
bNodeSocket *nsock;
rctf *rect= &gnode->totr;
int counter;
/* center them, is a bit of abuse of locx and locy though */
for(node= ngroup->nodes.first; node; node= node->next) {
node->locx+= gnode->locx;
node->locy+= gnode->locy;
if(node->flag & NODE_HIDDEN)
node_update_hidden(C, node);
else
node_update(C, ntree, node);
node->locx-= gnode->locx;
node->locy-= gnode->locy;
}
counter= 1;
for(node= ngroup->nodes.first; node; node= node->next) {
if(counter) {
*rect= node->totr;
counter= 0;
}
else
BLI_union_rctf(rect, &node->totr);
}
if(counter==1) return; /* should be prevented? */
rect->xmin-= NODE_DY;
rect->ymin-= NODE_DY;
rect->xmax+= NODE_DY;
rect->ymax+= NODE_DY;
/* output sockets */
for(nsock= gnode->outputs.first; nsock; nsock= nsock->next) {
nsock->locx= rect->xmax;
nsock->locy= nsock->tosock->locy;
}
/* input sockets */
for(nsock= gnode->inputs.first; nsock; nsock= nsock->next) {
nsock->locx= rect->xmin;
nsock->locy= nsock->tosock->locy;
}
}
/* note: in cmp_util.c is similar code, for node_compo_pass_on() */
static void node_draw_mute_line(View2D *v2d, SpaceNode *snode, bNode *node)
{
bNodeSocket *valsock= NULL, *colsock= NULL, *vecsock= NULL;
bNodeSocket *sock;
bNodeLink link;
int a;
memset(&link, 0, sizeof(bNodeLink));
/* connect the first value buffer in with first value out */
/* connect the first RGBA buffer in with first RGBA out */
/* test the inputs */
for(a=0, sock= node->inputs.first; sock; sock= sock->next, a++) {
if(nodeCountSocketLinks(snode->edittree, sock)) {
if(sock->type==SOCK_VALUE && valsock==NULL) valsock= sock;
if(sock->type==SOCK_VECTOR && vecsock==NULL) vecsock= sock;
if(sock->type==SOCK_RGBA && colsock==NULL) colsock= sock;
}
}
/* outputs, draw lines */
UI_ThemeColor(TH_REDALERT);
glEnable(GL_BLEND);
glEnable( GL_LINE_SMOOTH );
if(valsock || colsock || vecsock) {
for(a=0, sock= node->outputs.first; sock; sock= sock->next, a++) {
if(nodeCountSocketLinks(snode->edittree, sock)) {
link.tosock= sock;
if(sock->type==SOCK_VALUE && valsock) {
link.fromsock= valsock;
node_draw_link_bezier(v2d, snode, &link, TH_WIRE, TH_WIRE, 0);
valsock= NULL;
}
if(sock->type==SOCK_VECTOR && vecsock) {
link.fromsock= vecsock;
node_draw_link_bezier(v2d, snode, &link, TH_WIRE, TH_WIRE, 0);
vecsock= NULL;
}
if(sock->type==SOCK_RGBA && colsock) {
link.fromsock= colsock;
node_draw_link_bezier(v2d, snode, &link, TH_WIRE, TH_WIRE, 0);
colsock= NULL;
}
}
}
}
glDisable(GL_BLEND);
glDisable( GL_LINE_SMOOTH );
}
/* nice AA filled circle */
/* this might have some more generic use */
static void circle_draw(float x, float y, float size, int type, int col[3])
{
/* 16 values of sin function */
static float si[16] = {
0.00000000f, 0.39435585f,0.72479278f,0.93775213f,
0.99871650f,0.89780453f,0.65137248f,0.29936312f,
-0.10116832f,-0.48530196f,-0.79077573f,-0.96807711f,
-0.98846832f,-0.84864425f,-0.57126821f,-0.20129852f
};
/* 16 values of cos function */
static float co[16] ={
1.00000000f,0.91895781f,0.68896691f,0.34730525f,
-0.05064916f,-0.44039415f,-0.75875812f,-0.95413925f,
-0.99486932f,-0.87434661f,-0.61210598f,-0.25065253f,
0.15142777f,0.52896401f,0.82076344f,0.97952994f,
};
int a;
glColor3ub(col[0], col[1], col[2]);
glBegin(GL_POLYGON);
for(a=0; a<16; a++)
glVertex2f(x+size*si[a], y+size*co[a]);
glEnd();
glColor4ub(0, 0, 0, 150);
glEnable(GL_BLEND);
glEnable( GL_LINE_SMOOTH );
glBegin(GL_LINE_LOOP);
for(a=0; a<16; a++)
glVertex2f(x+size*si[a], y+size*co[a]);
glEnd();
glDisable( GL_LINE_SMOOTH );
glDisable(GL_BLEND);
}
static void socket_circle_draw(bNodeSocket *sock, float size)
{
int col[3];
if(sock->type==-1) {
col[0]= 0; col[1]= 0; col[2]= 0;
}
else if(sock->type==SOCK_VALUE) {
col[0]= 160; col[1]= 160; col[2]= 160;
}
else if(sock->type==SOCK_VECTOR) {
col[0]= 100; col[1]= 100; col[2]= 200;
}
else if(sock->type==SOCK_RGBA) {
col[0]= 200; col[1]= 200; col[2]= 40;
}
else {
col[0]= 100; col[1]= 200; col[2]= 100;
}
circle_draw(sock->locx, sock->locy, size, sock->type, col);
}
static void node_sync_cb(bContext *C, void *snode_v, void *node_v)
{
SpaceNode *snode= snode_v;
if(snode->treetype==NTREE_SHADER) {
nodeShaderSynchronizeID(node_v, 1);
// allqueue(REDRAWBUTSSHADING, 0);
}
}
/* ************** Socket callbacks *********** */
/* NOTE: this is a block-menu, needs 0 events, otherwise the menu closes */
static uiBlock *socket_vector_menu(bContext *C, ARegion *ar, void *socket_v)
{
bNodeSocket *sock= socket_v;
uiBlock *block;
SpaceNode *snode= CTX_wm_space_node(C);
bNodeTree *ntree = snode->nodetree;
PointerRNA ptr;
uiLayout *layout;
RNA_pointer_create(&ntree->id, &RNA_NodeSocket, sock, &ptr);
block= uiBeginBlock(C, ar, "socket menu", UI_EMBOSS);
uiBlockSetFlag(block, UI_BLOCK_KEEP_OPEN);
layout= uiLayoutColumn(uiBlockLayout(block, UI_LAYOUT_VERTICAL, UI_LAYOUT_PANEL, sock->locx, sock->locy-8, 140, 20, U.uistyles.first), 0);
uiItemR(layout, &ptr, "default_value", UI_ITEM_R_EXPAND, "", 0);
return block;
}
/* not a callback */
static void node_draw_preview(bNodePreview *preview, rctf *prv)
{
float xscale= (prv->xmax-prv->xmin)/((float)preview->xsize);
float yscale= (prv->ymax-prv->ymin)/((float)preview->ysize);
float tile= (prv->xmax - prv->xmin) / 10.0f;
float x, y;
/* draw checkerboard backdrop to show alpha */
glColor3ub(120, 120, 120);
glRectf(prv->xmin, prv->ymin, prv->xmax, prv->ymax);
glColor3ub(160, 160, 160);
for(y=prv->ymin; y<prv->ymax; y+=tile*2) {
for(x=prv->xmin; x<prv->xmax; x+=tile*2) {
float tilex= tile, tiley= tile;
if(x+tile > prv->xmax)
tilex= prv->xmax-x;
if(y+tile > prv->ymax)
tiley= prv->ymax-y;
glRectf(x, y, x + tilex, y + tiley);
}
}
for(y=prv->ymin+tile; y<prv->ymax; y+=tile*2) {
for(x=prv->xmin+tile; x<prv->xmax; x+=tile*2) {
float tilex= tile, tiley= tile;
if(x+tile > prv->xmax)
tilex= prv->xmax-x;
if(y+tile > prv->ymax)
tiley= prv->ymax-y;
glRectf(x, y, x + tilex, y + tiley);
}
}
// if(GPU_type_matches(GPU_DEVICE_NVIDIA, GPU_OS_MAC, GPU_DRIVER_OFFICIAL)) { XXX
// float zoomx= curarea->winx/(float)(G.v2d->cur.xmax-G.v2d->cur.xmin);
// float zoomy= curarea->winy/(float)(G.v2d->cur.ymax-G.v2d->cur.ymin);
// glPixelZoom(zoomx*xscale, zoomy*yscale);
// }
// else
glPixelZoom(xscale, yscale);
glEnable(GL_BLEND);
glBlendFunc( GL_ONE, GL_ONE_MINUS_SRC_ALPHA ); /* premul graphics */
glColor4f(1.0, 1.0, 1.0, 1.0);
glaDrawPixelsTex(prv->xmin, prv->ymin, preview->xsize, preview->ysize, GL_UNSIGNED_BYTE, preview->rect);
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
glDisable(GL_BLEND);
glPixelZoom(1.0f, 1.0f);
UI_ThemeColorShadeAlpha(TH_BACK, -15, +100);
fdrawbox(prv->xmin, prv->ymin, prv->xmax, prv->ymax);
}
static void node_draw_basis(const bContext *C, ARegion *ar, SpaceNode *snode, bNode *node)
{
bNodeSocket *sock;
uiBut *bt;
rctf *rct= &node->totr;
float /*slen,*/ iconofs;
int /*ofs,*/ color_id= node_get_colorid(node);
char showname[128]; /* 128 used below */
View2D *v2d = &ar->v2d;
bNodeTree *ntree = snode->nodetree;
PointerRNA ptr;
uiSetRoundBox(15-4);
ui_dropshadow(rct, BASIS_RAD, snode->aspect, node->flag & SELECT);
/* header */
if(color_id==TH_NODE)
UI_ThemeColorShade(color_id, -20);
else
UI_ThemeColor(color_id);
uiSetRoundBox(3);
uiRoundBox(rct->xmin, rct->ymax-NODE_DY, rct->xmax, rct->ymax, BASIS_RAD);
/* show/hide icons, note this sequence is copied in editnode.c */
iconofs= rct->xmax;
if(node->typeinfo->flag & NODE_PREVIEW) {
int icon_id;
if(node->flag & (NODE_ACTIVE_ID|NODE_DO_OUTPUT))
icon_id= ICON_MATERIAL;
else
icon_id= ICON_MATERIAL_DATA;
iconofs-=18.0f;
glEnable(GL_BLEND);
UI_icon_draw_aspect(iconofs, rct->ymax-NODE_DY, icon_id, 1.0f, 0.5f);
glDisable(GL_BLEND);
}
if(node->type == NODE_GROUP) {
iconofs-=18.0f;
glEnable(GL_BLEND);
if(node->id->lib) {
float rgb[3] = {1.0f, 0.7f, 0.3f};
UI_icon_draw_aspect_color(iconofs, rct->ymax-NODE_DY, ICON_NODETREE, 1.0f, rgb);
}
else {
UI_icon_draw_aspect(iconofs, rct->ymax-NODE_DY, ICON_NODETREE, 1.0f, 0.5f);
}
glDisable(GL_BLEND);
}
if(node->typeinfo->flag & NODE_OPTIONS) {
iconofs-=18.0f;
glEnable(GL_BLEND);
UI_icon_draw_aspect(iconofs, rct->ymax-NODE_DY, ICON_BUTS, 1.0f, 0.5f);
glDisable(GL_BLEND);
}
{ /* always hide/reveal unused sockets */
int shade;
iconofs-=18.0f;
// XXX re-enable
/*if(node_has_hidden_sockets(node))
shade= -40;
else*/
shade= -90;
glEnable(GL_BLEND);
UI_icon_draw_aspect(iconofs, rct->ymax-NODE_DY, ICON_PLUS, 1.0f, 0.5f);
glDisable(GL_BLEND);
}
/* title */
if(node->flag & SELECT)
UI_ThemeColor(TH_TEXT_HI);
else
UI_ThemeColorBlendShade(TH_TEXT, color_id, 0.4f, 10);
/* open/close entirely? */
ui_draw_tria_icon(rct->xmin+8.0f, rct->ymax-NODE_DY+4.0f, 'v');
if(node->flag & SELECT)
UI_ThemeColor(TH_TEXT_HI);
else
UI_ThemeColor(TH_TEXT);
if(node->flag & NODE_CUSTOM_NAME)
BLI_strncpy(showname, node->name, 32);
else
/* todo: auto name display for node types */
BLI_strncpy(showname, node->name, 32);
//if(node->flag & NODE_MUTED)
// sprintf(showname, "[%s]", showname);
uiDefBut(node->block, LABEL, 0, showname, (short)(rct->xmin+15), (short)(rct->ymax-NODE_DY),
(int)(iconofs - rct->xmin-18.0f), NODE_DY, NULL, 0, 0, 0, 0, "");
/* body */
UI_ThemeColor4(TH_NODE);
glEnable(GL_BLEND);
uiSetRoundBox(8);
uiRoundBox(rct->xmin, rct->ymin, rct->xmax, rct->ymax-NODE_DY, BASIS_RAD);
glDisable(GL_BLEND);
/* scaling indicator */
node_scaling_widget(TH_NODE, snode->aspect, rct->xmax-BASIS_RAD*snode->aspect, rct->ymin, rct->xmax, rct->ymin+BASIS_RAD*snode->aspect);
/* outline active emphasis */
if(node->flag & NODE_ACTIVE) {
glEnable(GL_BLEND);
glColor4ub(200, 200, 200, 140);
uiSetRoundBox(15-4);
gl_round_box(GL_LINE_LOOP, rct->xmin, rct->ymin, rct->xmax, rct->ymax, BASIS_RAD);
glDisable(GL_BLEND);
}
/* disable lines */
if(node->flag & NODE_MUTED)
node_draw_mute_line(v2d, snode, node);
/* hurmf... another candidate for callback, have to see how this works first */
if(node->id && node->block && snode->treetype==NTREE_SHADER)
nodeShaderSynchronizeID(node, 0);
/* socket inputs, buttons */
for(sock= node->inputs.first; sock; sock= sock->next) {
if(!(sock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL))) {
socket_circle_draw(sock, NODE_SOCKSIZE);
RNA_pointer_create(&ntree->id, &RNA_NodeSocket, sock, &ptr);
if(node->block && sock->link==NULL) {
if(sock->type==SOCK_VALUE) {
bt=uiDefButR(node->block, NUM, B_NODE_EXEC, sock->name,
(short)sock->locx+NODE_DYS, (short)(sock->locy)-9, (short)node->width-NODE_DY, 17,
&ptr, "default_value", 0, sock->ns.min, sock->ns.max, -1, -1, NULL);
uiButSetFunc(bt, node_sync_cb, snode, node);
}
else if(sock->type==SOCK_VECTOR) {
uiDefBlockBut(node->block, socket_vector_menu, sock, sock->name,
(short)sock->locx+NODE_DYS, (short)sock->locy-9, (short)node->width-NODE_DY, 17,
"");
}
else if(node->block && sock->type==SOCK_RGBA) {
short labelw= (short)node->width-NODE_DY-40, width;
if(labelw>0) width= 40; else width= (short)node->width-NODE_DY;
bt=uiDefButR(node->block, COL, B_NODE_EXEC, "",
(short)sock->locx+NODE_DYS, (short)(sock->locy)-8, width, 15,
&ptr, "default_value", 0, sock->ns.min, sock->ns.max, -1, -1, NULL);
uiButSetFunc(bt, node_sync_cb, snode, node);
if(labelw>0) uiDefBut(node->block, LABEL, 0, sock->name,
(short)(sock->locx+NODE_DYS) + 40, (short)sock->locy-8, labelw, 15,
NULL, 0, 0, 0, 0, "");
}
}
else {
uiDefBut(node->block, LABEL, 0, sock->name, (short)(sock->locx+7), (short)(sock->locy-9.0f),
(short)(node->width-NODE_DY), NODE_DY, NULL, 0, 0, 0, 0, "");
}
}
}
/* socket outputs */
for(sock= node->outputs.first; sock; sock= sock->next) {
if(!(sock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL))) {
float slen;
int ofs= 0;
socket_circle_draw(sock, NODE_SOCKSIZE);
UI_ThemeColor(TH_TEXT);
slen= snode->aspect*UI_GetStringWidth(sock->name);
while(slen > node->width) {
ofs++;
slen= snode->aspect*UI_GetStringWidth(sock->name+ofs);
}
uiDefBut(node->block, LABEL, 0, sock->name+ofs, (short)(sock->locx-15.0f-slen), (short)(sock->locy-9.0f),
(short)(node->width-NODE_DY), NODE_DY, NULL, 0, 0, 0, 0, "");
}
}
/* preview */
if(node->flag & NODE_PREVIEW) {
BLI_lock_thread(LOCK_PREVIEW);
if(node->preview && node->preview->rect && !BLI_rctf_is_empty(&node->prvr))
node_draw_preview(node->preview, &node->prvr);
BLI_unlock_thread(LOCK_PREVIEW);
}
uiEndBlock(C, node->block);
uiDrawBlock(C, node->block);
node->block= NULL;
}
static void node_draw_hidden(const bContext *C, ARegion *ar, SpaceNode *snode, bNode *node)
{
bNodeSocket *sock;
rctf *rct= &node->totr;
float dx, centy= 0.5f*(rct->ymax+rct->ymin);
float hiddenrad= 0.5f*(rct->ymax-rct->ymin);
int color_id= node_get_colorid(node);
char showname[128]; /* 128 is used below */
/* shadow */
uiSetRoundBox(15);
ui_dropshadow(rct, hiddenrad, snode->aspect, node->flag & SELECT);
/* body */
UI_ThemeColor(color_id);
uiRoundBox(rct->xmin, rct->ymin, rct->xmax, rct->ymax, hiddenrad);
/* outline active emphasis */
if(node->flag & NODE_ACTIVE) {
glEnable(GL_BLEND);
glColor4ub(200, 200, 200, 140);
gl_round_box(GL_LINE_LOOP, rct->xmin, rct->ymin, rct->xmax, rct->ymax, hiddenrad);
glDisable(GL_BLEND);
}
/* title */
if(node->flag & SELECT)
UI_ThemeColor(TH_TEXT_HI);
else
UI_ThemeColorBlendShade(TH_TEXT, color_id, 0.4f, 10);
/* open entirely icon */
ui_draw_tria_icon(rct->xmin+9.0f, centy-6.0f, 'h');
/* disable lines */
if(node->flag & NODE_MUTED)
node_draw_mute_line(&ar->v2d, snode, node);
if(node->flag & SELECT)
UI_ThemeColor(TH_TEXT_HI);
else
UI_ThemeColor(TH_TEXT);
if(node->miniwidth>0.0f) {
if(node->flag & NODE_CUSTOM_NAME)
BLI_strncpy(showname, node->name, 128);
else
/* todo: auto name display */
BLI_strncpy(showname, node->name, 128);
//if(node->flag & NODE_MUTED)
// sprintf(showname, "[%s]", showname);
uiDefBut(node->block, LABEL, 0, showname, (short)(rct->xmin+15), (short)(centy-10),
(int)(rct->xmax - rct->xmin-18.0f -12.0f), NODE_DY, NULL, 0, 0, 0, 0, "");
}
/* scale widget thing */
UI_ThemeColorShade(color_id, -10);
dx= 10.0f;
fdrawline(rct->xmax-dx, centy-4.0f, rct->xmax-dx, centy+4.0f);
fdrawline(rct->xmax-dx-3.0f*snode->aspect, centy-4.0f, rct->xmax-dx-3.0f*snode->aspect, centy+4.0f);
UI_ThemeColorShade(color_id, +30);
dx-= snode->aspect;
fdrawline(rct->xmax-dx, centy-4.0f, rct->xmax-dx, centy+4.0f);
fdrawline(rct->xmax-dx-3.0f*snode->aspect, centy-4.0f, rct->xmax-dx-3.0f*snode->aspect, centy+4.0f);
/* sockets */
for(sock= node->inputs.first; sock; sock= sock->next) {
if(!(sock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL)))
socket_circle_draw(sock, NODE_SOCKSIZE);
}
for(sock= node->outputs.first; sock; sock= sock->next) {
if(!(sock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL)))
socket_circle_draw(sock, NODE_SOCKSIZE);
}
uiEndBlock(C, node->block);
uiDrawBlock(C, node->block);
node->block= NULL;
}
static void node_draw_nodetree(const bContext *C, ARegion *ar, SpaceNode *snode, bNodeTree *ntree)
{
bNode *node;
bNodeLink *link;
int a;
if(ntree==NULL) return; /* groups... */
/* node lines */
glEnable(GL_BLEND);
glEnable(GL_LINE_SMOOTH);
for(link= ntree->links.first; link; link= link->next)
node_draw_link(&ar->v2d, snode, link);
glDisable(GL_LINE_SMOOTH);
glDisable(GL_BLEND);
/* not selected first */
for(a=0, node= ntree->nodes.first; node; node= node->next, a++) {
node->nr= a; /* index of node in list, used for exec event code */
if(!(node->flag & SELECT)) {
if(node->flag & NODE_GROUP_EDIT);
else if(node->flag & NODE_HIDDEN)
node_draw_hidden(C, ar, snode, node);
else
node_draw_basis(C, ar, snode, node);
}
}
/* selected */
for(node= ntree->nodes.first; node; node= node->next) {
if(node->flag & SELECT) {
if(node->flag & NODE_GROUP_EDIT);
else if(node->flag & NODE_HIDDEN)
node_draw_hidden(C, ar, snode, node);
else
node_draw_basis(C, ar, snode, node);
}
}
}
/* fake links from groupnode to internal nodes */
static void node_draw_group_links(View2D *v2d, SpaceNode *snode, bNode *gnode)
{
bNodeLink fakelink;
bNodeSocket *sock;
glEnable(GL_BLEND);
glEnable(GL_LINE_SMOOTH);
fakelink.tonode= fakelink.fromnode= gnode;
for(sock= gnode->inputs.first; sock; sock= sock->next) {
if(!(sock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL))) {
if(sock->tosock) {
fakelink.fromsock= sock;
fakelink.tosock= sock->tosock;
node_draw_link(v2d, snode, &fakelink);
}
}
}
for(sock= gnode->outputs.first; sock; sock= sock->next) {
if(!(sock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL))) {
if(sock->tosock) {
fakelink.tosock= sock;
fakelink.fromsock= sock->tosock;
node_draw_link(v2d, snode, &fakelink);
}
}
}
glDisable(GL_BLEND);
glDisable(GL_LINE_SMOOTH);
}
/* groups are, on creation, centered around 0,0 */
static void node_draw_group(const bContext *C, ARegion *ar, SpaceNode *snode, bNode *gnode)
{
bNodeTree *ngroup= (bNodeTree *)gnode->id;
bNodeSocket *sock;
rctf rect= gnode->totr;
char showname[128];
/* backdrop header */
glEnable(GL_BLEND);
uiSetRoundBox(3);
UI_ThemeColorShadeAlpha(TH_NODE_GROUP, 0, -70);
gl_round_box(GL_POLYGON, rect.xmin, rect.ymax, rect.xmax, rect.ymax+NODE_DY, BASIS_RAD);
/* backdrop body */
UI_ThemeColorShadeAlpha(TH_BACK, -8, -70);
uiSetRoundBox(12);
gl_round_box(GL_POLYGON, rect.xmin, rect.ymin, rect.xmax, rect.ymax, BASIS_RAD);
/* selection outline */
uiSetRoundBox(15);
glColor4ub(200, 200, 200, 140);
glEnable( GL_LINE_SMOOTH );
gl_round_box(GL_LINE_LOOP, rect.xmin, rect.ymin, rect.xmax, rect.ymax+NODE_DY, BASIS_RAD);
glDisable( GL_LINE_SMOOTH );
glDisable(GL_BLEND);
/* backdrop title */
UI_ThemeColor(TH_TEXT_HI);
if (gnode->flag & NODE_CUSTOM_NAME)
strcat(showname, gnode->name);
else
strcpy(showname, ngroup->id.name+2);
// XXX this shows some scaling artifacts
UI_DrawString(rect.xmin+8.0f, rect.ymax+5.0f, showname);
/* links from groupsockets to the internal nodes */
node_draw_group_links(&ar->v2d, snode, gnode);
/* group sockets */
for(sock= gnode->inputs.first; sock; sock= sock->next)
if(!(sock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL)))
socket_circle_draw(sock, NODE_SOCKSIZE);
for(sock= gnode->outputs.first; sock; sock= sock->next)
if(!(sock->flag & (SOCK_HIDDEN|SOCK_UNAVAIL)))
socket_circle_draw(sock, NODE_SOCKSIZE);
/* and finally the whole tree */
node_draw_nodetree(C, ar, snode, ngroup);
}
void drawnodespace(const bContext *C, ARegion *ar, View2D *v2d)
{
float col[3];
View2DScrollers *scrollers;
SpaceNode *snode= CTX_wm_space_node(C);
Scene *scene= CTX_data_scene(C);
int color_manage = scene->r.color_mgt_flag & R_COLOR_MANAGEMENT;
UI_GetThemeColor3fv(TH_BACK, col);
glClearColor(col[0], col[1], col[2], 0);
glClear(GL_COLOR_BUFFER_BIT);
UI_view2d_view_ortho(C, v2d);
//uiFreeBlocksWin(&sa->uiblocks, sa->win);
/* only set once */
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
glEnable(GL_MAP1_VERTEX_3);
/* aspect+font, set each time */
snode->aspect= (v2d->cur.xmax - v2d->cur.xmin)/((float)ar->winx);
// XXX snode->curfont= uiSetCurFont_ext(snode->aspect);
UI_view2d_constant_grid_draw(C, v2d);
/* backdrop */
draw_nodespace_back_pix(ar, snode, color_manage);
/* nodes */
snode_set_context(snode, CTX_data_scene(C));
if(snode->nodetree) {
bNode *node;
/* init ui blocks for opened node group trees first
* so they're in the correct depth stack order */
for(node= snode->nodetree->nodes.first; node; node= node->next) {
if(node->flag & NODE_GROUP_EDIT)
node_uiblocks_init(C, (bNodeTree *)node->id);
}
node_uiblocks_init(C, snode->nodetree);
/* for now, we set drawing coordinates on each redraw */
for(node= snode->nodetree->nodes.first; node; node= node->next) {
if(node->flag & NODE_GROUP_EDIT)
node_update_group(C, snode->nodetree, node);
else if(node->flag & NODE_HIDDEN)
node_update_hidden(C, node);
else
node_update(C, snode->nodetree, node);
}
node_draw_nodetree(C, ar, snode, snode->nodetree);
/* active group */
for(node= snode->nodetree->nodes.first; node; node= node->next) {
if(node->flag & NODE_GROUP_EDIT)
node_draw_group(C, ar, snode, node);
}
}
/* draw grease-pencil ('canvas' strokes) */
if (/*(snode->flag & SNODE_DISPGP) &&*/ (snode->nodetree))
draw_gpencil_2dview((bContext*)C, 1);
/* reset view matrix */
UI_view2d_view_restore(C);
/* draw grease-pencil (screen strokes, and also paintbuffer) */
if (/*(snode->flag & SNODE_DISPGP) && */(snode->nodetree))
draw_gpencil_2dview((bContext*)C, 0);
/* scrollers */
scrollers= UI_view2d_scrollers_calc(C, v2d, 10, V2D_GRID_CLAMP, V2D_ARG_DUMMY, V2D_ARG_DUMMY);
UI_view2d_scrollers_draw(C, v2d, scrollers);
UI_view2d_scrollers_free(scrollers);
}
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