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Diffstat (limited to 'source/blender/src/drawgpencil.c')
| -rw-r--r-- | source/blender/src/drawgpencil.c | 653 |
1 files changed, 653 insertions, 0 deletions
diff --git a/source/blender/src/drawgpencil.c b/source/blender/src/drawgpencil.c new file mode 100644 index 00000000000..55d0464b9af --- /dev/null +++ b/source/blender/src/drawgpencil.c @@ -0,0 +1,653 @@ +/** + * $Id: drawgpencil.c 14881 2008-05-18 10:41:42Z aligorith $ + * + * ***** 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 + * This is a new part of Blender + * + * Contributor(s): Joshua Leung + * + * ***** END GPL LICENSE BLOCK ***** + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <stddef.h> +#include <math.h> + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "MEM_guardedalloc.h" + +#include "BMF_Api.h" + +#include "BLI_arithb.h" +#include "BLI_blenlib.h" + +#include "DNA_listBase.h" +#include "DNA_gpencil_types.h" +#include "DNA_scene_types.h" +#include "DNA_screen_types.h" +#include "DNA_space_types.h" +#include "DNA_userdef_types.h" +#include "DNA_view3d_types.h" + +#include "BKE_global.h" +#include "BKE_utildefines.h" +#include "BKE_blender.h" + +#include "BIF_gl.h" +#include "BIF_glutil.h" +#include "BIF_butspace.h" +#include "BIF_graphics.h" +#include "BIF_interface.h" +#include "BIF_mywindow.h" +#include "BIF_resources.h" +#include "BIF_space.h" +#include "BIF_screen.h" +#include "BIF_toolbox.h" +#include "BIF_toets.h" + +#include "BDR_gpencil.h" +#include "BIF_drawgpencil.h" + +#include "BSE_drawipo.h" +#include "BSE_headerbuttons.h" +#include "BSE_view.h" + +#include "blendef.h" +#include "butspace.h" + +#include "PIL_time.h" /* sleep */ +#include "mydevice.h" + +/* ************************************************** */ +/* GREASE PENCIL PANEL-UI DRAWING */ + +/* Every space which implements Grease-Pencil functionality should have a panel + * for the settings. All of the space-dependent parts should be coded in the panel + * code for that space, but the rest is all handled by generic panel here. + */ + +/* ------- Callbacks ----------- */ +/* These are just 'dummy wrappers' around gpencil api calls */ + +/* make layer active one after being clicked on */ +void gp_ui_activelayer_cb (void *gpd, void *gpl) +{ + gpencil_layer_setactive(gpd, gpl); +} + +/* rename layer and set active */ +void gp_ui_renamelayer_cb (void *gpd_arg, void *gpl_arg) +{ + bGPdata *gpd= (bGPdata *)gpd_arg; + bGPDlayer *gpl= (bGPDlayer *)gpl_arg; + + BLI_uniquename(&gpd->layers, gpl, "GP_Layer", offsetof(bGPDlayer, info[0]), 128); + gpencil_layer_setactive(gpd, gpl); +} + +/* add a new layer */ +void gp_ui_addlayer_cb (void *gpd, void *dummy) +{ + gpencil_layer_addnew(gpd); +} + +/* delete active layer */ +void gp_ui_dellayer_cb (void *gpd, void *dummy) +{ + gpencil_layer_delactive(gpd); +} + +/* delete last stroke of active layer */ +void gp_ui_delstroke_cb (void *gpd, void *gpl) +{ + bGPDframe *gpf= gpencil_layer_getframe(gpl, CFRA, 0); + + gpencil_layer_setactive(gpd, gpl); + gpencil_frame_delete_laststroke(gpf); +} + +/* delete active frame of active layer */ +void gp_ui_delframe_cb (void *gpd, void *gpl) +{ + bGPDframe *gpf= gpencil_layer_getframe(gpl, CFRA, 0); + + gpencil_layer_setactive(gpd, gpl); + gpencil_layer_delframe(gpl, gpf); +} + + +/* set this set of gpencil data for editing in action editor */ +void gp_ui_dotime_cb (void *gpd_arg, void *dummy) +{ + bGPdata *gpd= (bGPdata *)gpd_arg; + + /* check if setting or clearing (note: setting was just set...) */ + if (gpd->flag & GP_DATA_EDITTIME) + gpencil_data_setetime(G.curscreen, gpd); + else + gpencil_data_setetime(G.curscreen, NULL); +} + + +/* ------- Drawing Code ------- */ + +/* draw the controls for a given layer */ +static void gp_drawui_layer (uiBlock *block, bGPdata *gpd, bGPDlayer *gpl, short *xco, short *yco) +{ + uiBut *but; + short width= 314; + short height; + int rb_col; + + /* unless button has own callback, it adds this callback to button */ + uiBlockSetFunc(block, gp_ui_activelayer_cb, gpd, gpl); + + /* draw header */ + { + uiBlockSetEmboss(block, UI_EMBOSSN); + + /* rounded header */ + rb_col= (gpl->flag & GP_LAYER_ACTIVE)?50:20; + uiDefBut(block, ROUNDBOX, B_DIFF, "", *xco-8, *yco-2, width, 24, NULL, 5.0, 0.0, 15 , rb_col-20, ""); + + /* lock toggle */ + uiDefIconButBitI(block, ICONTOG, GP_LAYER_LOCKED, B_REDR, ICON_UNLOCKED, *xco-7, *yco-1, 20, 20, &gpl->flag, 0.0, 0.0, 0, 0, "Layer cannot be modified"); + } + + /* when layer is locked or hidden, don't draw the rest of its settings */ + if (gpl->flag & (GP_LAYER_LOCKED|GP_LAYER_HIDE)) { + height= 26; + + /* draw rest of header */ + { + /* visibility button (only if hidden but not locked!) */ + if ((gpl->flag & GP_LAYER_HIDE) && !(gpl->flag & GP_LAYER_LOCKED)) + uiDefIconButBitI(block, ICONTOG, GP_LAYER_HIDE, B_REDR, ICON_RESTRICT_VIEW_OFF, *xco+12, *yco-1, 20, 20, &gpl->flag, 0.0, 0.0, 0, 0, "Visibility of layer"); + + /* name */ + uiDefBut(block, LABEL, 1, gpl->info, *xco+35, *yco, 240, 20, NULL, 0.0, 0.0, 0, 0, "Short description of what this layer is for (optional)"); + } + + /* draw backdrop */ + uiDefBut(block, ROUNDBOX, B_DIFF, "", *xco-8, *yco-height, width, height-1, NULL, 5.0, 0.0, 12, rb_col, ""); + + /* draw settings... (i.e. just warning for this one) */ + if (gpl->flag & GP_LAYER_HIDE) + uiDefBut(block, LABEL, 1, "Grease Pencil Layer Hidden", *xco+60, *yco-26, 205, 20, NULL, 0.0, 0.0, 0, 0, ""); + else + uiDefBut(block, LABEL, 1, "Grease Pencil Layer Locked", *xco+60, *yco-26, 205, 20, NULL, 0.0, 0.0, 0, 0, ""); + + uiBlockSetEmboss(block, UI_EMBOSS); + } + else { + height= 100; + + /* draw rest of header */ + { + /* visibility button */ + uiDefIconButBitI(block, ICONTOG, GP_LAYER_HIDE, B_REDR, ICON_RESTRICT_VIEW_OFF, *xco+12, *yco-1, 20, 20, &gpl->flag, 0.0, 0.0, 0, 0, "Visibility of layer"); + + uiBlockSetEmboss(block, UI_EMBOSS); + + /* name */ + but= uiDefButC(block, TEX, B_REDR, "Info:", *xco+35, *yco, 240, 20, gpl->info, 0, 127, 0, 0, "Short description of what this layer is for (optional)"); + uiButSetFunc(but, gp_ui_renamelayer_cb, gpd, gpl); + + /* delete 'button' */ + uiBlockSetEmboss(block, UI_EMBOSSN); + + but= uiDefIconBut(block, BUT, B_REDR, ICON_X, *xco+(width-30), *yco, 19, 19, NULL, 0.0, 0.0, 0.0, 0.0, "Delete layer"); + uiButSetFunc(but, gp_ui_dellayer_cb, gpd, NULL); + + uiBlockSetEmboss(block, UI_EMBOSS); + } + + /* draw backdrop */ + uiDefBut(block, ROUNDBOX, B_DIFF, "", *xco-8, *yco-height, width, height-1, NULL, 5.0, 0.0, 12, rb_col, ""); + + /* draw settings */ + { + /* color */ + uiBlockBeginAlign(block); + uiDefButF(block, COL, B_REDR, "", *xco, *yco-26, 150, 19, gpl->color, 0, 0, 0, 0, "Color to use for all strokes on this Grease Pencil Layer"); + uiDefButF(block, NUMSLI, B_REDR, "Opacity: ", *xco,*yco-45,150,19, &gpl->color[3], 0.3, 1.0, 0, 0, "Visibility of stroke (0.3 to 1.0)"); + uiBlockEndAlign(block); + + /* stroke thickness */ + uiDefButS(block, NUMSLI, B_REDR, "Thickness:", *xco, *yco-75, 150, 20, &gpl->thickness, 1, 10, 0, 0, "Thickness of strokes (in pixels)"); + + + /* onion-skinning */ + uiBlockBeginAlign(block); + uiDefButBitI(block, TOG, GP_LAYER_ONIONSKIN, B_REDR, "Onion-Skin", *xco+160, *yco-26, 140, 20, &gpl->flag, 0, 0, 0, 0, "Ghost frames on either side of frame"); + uiDefButS(block, NUMSLI, B_REDR, "GStep:", *xco+160, *yco-46, 140, 20, &gpl->gstep, 0, 120, 0, 0, "Maximum frame range on either side of active frame to show (0 = just 'first' available frame on either side)"); + uiBlockEndAlign(block); + + /* options */ + but= uiDefBut(block, BUT, B_REDR, "Del Active Frame", *xco+160, *yco-75, 140, 20, NULL, 0, 0, 0, 0, "Erases the the active frame for this layer"); + uiButSetFunc(but, gp_ui_delframe_cb, gpd, gpl); + + but= uiDefBut(block, BUT, B_REDR, "Del Last Stroke", *xco+160, *yco-95, 140, 20, NULL, 0, 0, 0, 0, "Erases the last stroke from the active frame"); + uiButSetFunc(but, gp_ui_delstroke_cb, gpd, gpl); + + //uiDefButBitI(block, TOG, GP_LAYER_DRAWDEBUG, B_REDR, "Show Points", *xco+160, *yco-75, 130, 20, &gpl->flag, 0, 0, 0, 0, "Show points which form the strokes"); + } + } + + /* adjust height for new to start */ + (*yco) -= (height + 27); +} + +/* Draw the contents for a grease-pencil panel. This assumes several things: + * - that panel has been created, is 318 x 204. max yco is 225 + * - that a toggle for turning on/off gpencil drawing is 150 x 20, starting from (10,225) + * It will return the amount of extra space to extend the panel by + */ +short draw_gpencil_panel (uiBlock *block, bGPdata *gpd, ScrArea *sa) +{ + uiBut *but; + bGPDlayer *gpl; + short xco= 10, yco= 155; + + /* draw gpd settings first */ + { + /* show status info button */ + uiDefButBitI(block, TOG, GP_DATA_DISPINFO, B_REDR, "Show Status Info", 10, 205, 150, 20, &gpd->flag, 0, 0, 0, 0, "Display status info about current status of Grease Pencil"); + + /* add new/duplicate layer buttons */ + but= uiDefBut(block, BUT, B_REDR, "Add New Layer", 10,182,150,20, 0, 0, 0, 0, 0, "Adds a new Grease Pencil Layer"); + uiButSetFunc(but, gp_ui_addlayer_cb, gpd, NULL); + + + /* show override lmb-clicks button */ + uiDefButBitI(block, TOG, GP_DATA_EDITPAINT, B_REDR, "Draw Mode", 170, 225, 150, 20, &gpd->flag, 0, 0, 0, 0, "Interpret LMB-click as new strokes (same as holding Shift-Key per stroke)"); + + /* 'view align' button (naming depends on context) */ + if (sa->spacetype == SPACE_VIEW3D) + uiDefButBitI(block, TOG, GP_DATA_VIEWALIGN, B_REDR, "Draw in 3D", 170, 205, 150, 20, &gpd->flag, 0, 0, 0, 0, "New strokes are added in 3D-space"); + else if (sa->spacetype != SPACE_SEQ) /* not available for sequencer yet */ + uiDefButBitI(block, TOG, GP_DATA_VIEWALIGN, B_REDR, "Stick to View", 170, 205, 150, 20, &gpd->flag, 0, 0, 0, 0, "New strokes are added on 2d-canvas"); + + /* show edit-in-action button */ + but= uiDefButBitI(block, TOG, GP_DATA_EDITTIME, B_REDR, "Edit Timing", 170, 182, 150, 20, &gpd->flag, 0, 0, 0, 0, "Edit timing of frames for the Grease Pencil block"); + uiButSetFunc(but, gp_ui_dotime_cb, gpd, NULL); + } + + /* draw for each layer */ + for (gpl= gpd->layers.first; gpl; gpl= gpl->next) { + gp_drawui_layer(block, gpd, gpl, &xco, &yco); + } + + /* return new height if necessary */ + return (yco < 0) ? (204 - yco) : 204; +} + +/* ************************************************** */ +/* GREASE PENCIL DRAWING */ + +/* flags for sflag */ +enum { + GP_DRAWDATA_NOSTATUS = (1<<0), /* don't draw status info */ + GP_DRAWDATA_ONLY3D = (1<<1), /* only draw 3d-strokes */ + GP_DRAWDATA_ONLYV2D = (1<<2), /* only draw 'canvas' strokes */ +}; + +/* draw a given stroke */ +static void gp_draw_stroke (bGPDspoint *points, int totpoints, short thickness, short dflag, short sflag, short debug, int winx, int winy) +{ + bGPDspoint *pt; + int i; + + /* error checking */ + if ((points == NULL) || (totpoints <= 0)) + return; + + /* check if stroke can be drawn */ + if ((dflag & GP_DRAWDATA_ONLY3D) && !(sflag & GP_STROKE_3DSPACE)) + return; + if (!(dflag & GP_DRAWDATA_ONLY3D) && (sflag & GP_STROKE_3DSPACE)) + return; + if ((dflag & GP_DRAWDATA_ONLYV2D) && !(sflag & GP_STROKE_2DSPACE)) + return; + if (!(dflag & GP_DRAWDATA_ONLYV2D) && (sflag & GP_STROKE_2DSPACE)) + return; + + /* if drawing a single point, draw it larger */ + if (totpoints == 1) { + /* draw point */ + if (sflag & GP_STROKE_3DSPACE) { + glBegin(GL_POINTS); + glVertex3f(points->x, points->y, points->z); + glEnd(); + } + else if (sflag & GP_STROKE_2DSPACE) { + glBegin(GL_POINTS); + glVertex2f(points->x, points->y); + glEnd(); + } + else { + const float x= (points->x / 1000 * winx); + const float y= (points->y / 1000 * winy); + + glBegin(GL_POINTS); + glVertex2f(x, y); + glEnd(); + } + } + else { + float oldpressure = 0.0f; + + /* draw stroke curve */ + glBegin(GL_LINE_STRIP); + for (i=0, pt=points; i < totpoints && pt; i++, pt++) { + float x, y, z; + + if (sflag & GP_STROKE_3DSPACE) { + x= pt->x; + y= pt->y; + z= pt->z; + } + else if (sflag & GP_STROKE_2DSPACE) { + x= pt->x; + y= pt->y; + z= 0; + } + else { + x= (pt->x / 1000 * winx); + y= (pt->y / 1000 * winy); + z= 0; + } + + if (fabs(pt->pressure - oldpressure) > 0.2f) { + glEnd(); + glLineWidth(pt->pressure * thickness); + glBegin(GL_LINE_STRIP); + + if (sflag & GP_STROKE_3DSPACE) + glVertex3f(x, y, z); + else + glVertex2f(x, y); + + oldpressure = pt->pressure; + } + else { + if (sflag & GP_STROKE_3DSPACE) + glVertex3f(x, y, z); + else + glVertex2f(x, y); + } + } + glEnd(); + + /* draw debug points of curve on top? */ + if (debug) { + glBegin(GL_POINTS); + for (i=0, pt=points; i < totpoints && pt; i++, pt++) { + if (sflag & GP_STROKE_3DSPACE) { + glVertex3f(pt->x, pt->y, pt->z); + } + else if (sflag & GP_STROKE_2DSPACE) { + glVertex2f(pt->x, pt->y); + } + else { + const float x= (pt->x / 1000 * winx); + const float y= (pt->y / 1000 * winy); + + glVertex2f(x, y); + } + } + glEnd(); + } + } +} + +/* draw grease-pencil datablock */ +static void gp_draw_data (bGPdata *gpd, int winx, int winy, int dflag) +{ + bGPDlayer *gpl, *actlay=NULL; + + /* turn on smooth lines (i.e. anti-aliasing) */ + glEnable(GL_LINE_SMOOTH); + + /* turn on alpha-blending */ + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); + glEnable(GL_BLEND); + + /* loop over layers, drawing them */ + for (gpl= gpd->layers.first; gpl; gpl= gpl->next) { + bGPDframe *gpf; + bGPDstroke *gps; + + short debug = (gpl->flag & GP_LAYER_DRAWDEBUG) ? 1 : 0; + short lthick= gpl->thickness; + float color[4]; + + /* don't draw layer if hidden */ + if (gpl->flag & GP_LAYER_HIDE) + continue; + + /* if layer is active one, store pointer to it */ + if (gpl->flag & GP_LAYER_ACTIVE) + actlay= gpl; + + /* get frame to draw */ + gpf= gpencil_layer_getframe(gpl, CFRA, 0); + if (gpf == NULL) + continue; + + /* set color, stroke thickness, and point size */ + glLineWidth(lthick); + QUATCOPY(color, gpl->color); // just for copying 4 array elements + glColor4f(color[0], color[1], color[2], color[3]); + glPointSize(gpl->thickness + 2); + + /* draw 'onionskins' (frame left + right) */ + if (gpl->flag & GP_LAYER_ONIONSKIN) { + /* drawing method - only immediately surrounding (gstep = 0), or within a frame range on either side (gstep > 0)*/ + if (gpl->gstep) { + bGPDframe *gf; + short i; + + /* draw previous frames first */ + for (gf=gpf->prev, i=0; gf; gf=gf->prev, i++) { + /* check if frame is drawable */ + if ((gpf->framenum - gf->framenum) <= gpl->gstep) { + /* alpha decreases with distance from curframe index */ + glColor4f(color[0], color[1], color[2], (color[3]-(i*0.7))); + + for (gps= gf->strokes.first; gps; gps= gps->next) { + gp_draw_stroke(gps->points, gps->totpoints, lthick, dflag, gps->flag, debug, winx, winy); + } + } + else + break; + } + + /* now draw next frames */ + for (gf= gpf->next, i=0; gf; gf=gf->next, i++) { + /* check if frame is drawable */ + if ((gf->framenum - gpf->framenum) <= gpl->gstep) { + /* alpha decreases with distance from curframe index */ + glColor4f(color[0], color[1], color[2], (color[3]-(i*0.7))); + + for (gps= gf->strokes.first; gps; gps= gps->next) { + gp_draw_stroke(gps->points, gps->totpoints, lthick, dflag, gps->flag, debug, winx, winy); + } + } + else + break; + } + + /* restore alpha */ + glColor4f(color[0], color[1], color[2], color[3]); + } + else { + /* draw the strokes for the ghost frames (at half of the alpha set by user) */ + glColor4f(color[0], color[1], color[2], (color[3] / 7)); + + if (gpf->prev) { + for (gps= gpf->prev->strokes.first; gps; gps= gps->next) { + gp_draw_stroke(gps->points, gps->totpoints, lthick, dflag, gps->flag, debug, winx, winy); + } + } + + glColor4f(color[0], color[1], color[2], (color[3] / 4)); + if (gpf->next) { + for (gps= gpf->next->strokes.first; gps; gps= gps->next) { + gp_draw_stroke(gps->points, gps->totpoints, lthick, dflag, gps->flag, debug, winx, winy); + } + } + + /* restore alpha */ + glColor4f(color[0], color[1], color[2], color[3]); + } + } + + /* draw the strokes already in active frame */ + for (gps= gpf->strokes.first; gps; gps= gps->next) { + gp_draw_stroke(gps->points, gps->totpoints, lthick, dflag, gps->flag, debug, winx, winy); + } + + /* Check if may need to draw the active stroke cache, only if this layer is the active layer + * that is being edited. (Stroke cache is currently stored in gp-data) + */ + if ((G.f & G_GREASEPENCIL) && (gpl->flag & GP_LAYER_ACTIVE) && + (gpf->flag & GP_FRAME_PAINT)) + { + /* Buffer stroke needs to be drawn with a different linestyle to help differentiate them from normal strokes. */ + setlinestyle(2); + gp_draw_stroke(gpd->sbuffer, gpd->sbuffer_size, lthick, dflag, gpd->sbuffer_sflag, debug, winx, winy); + setlinestyle(0); + } + } + + /* turn off alpha blending, then smooth lines */ + glDisable(GL_BLEND); // alpha blending + glDisable(GL_LINE_SMOOTH); // smooth lines + + /* show info for debugging the status of gpencil */ + if ( ((dflag & GP_DRAWDATA_NOSTATUS)==0) && (gpd->flag & GP_DATA_DISPINFO) ) { + char printable[256]; + short xmax; + + /* get text to display */ + if (actlay) { + if (gpd->flag & GP_DATA_EDITPAINT) + BIF_ThemeColor(TH_BONE_POSE); // should be blue-ish + else if (actlay->actframe == NULL) + BIF_ThemeColor(TH_REDALERT); + else if (actlay->actframe->framenum == CFRA) + BIF_ThemeColor(TH_VERTEX_SELECT); // should be yellow + else + BIF_ThemeColor(TH_TEXT_HI); + + if (actlay->actframe) { + sprintf(printable, "GPencil: Layer ('%s'), Frame (%d) %s", + actlay->info, actlay->actframe->framenum, + ((gpd->flag & GP_DATA_EDITPAINT)?", Draw Mode On":"") ); + } + else { + sprintf(printable, "GPencil: Layer ('%s'), Frame <None> %s", + actlay->info, ((gpd->flag & GP_DATA_EDITPAINT)?", Draw Mode On":"") ); + } + } + else { + BIF_ThemeColor(TH_REDALERT); + sprintf(printable, "GPencil: Layer <None>"); + } + xmax= GetButStringLength(printable); + + /* only draw it if view is wide enough (assume padding of 20 is enough for now) */ + if (winx > (xmax + 20)) { + glRasterPos2i(winx-xmax, winy-20); + BMF_DrawString(G.fonts, printable); + } + } + + /* restore initial gl conditions */ + glLineWidth(1.0); + glPointSize(1.0); + glColor4f(0, 0, 0, 1); +} + +/* ----------- */ + +/* draw grease-pencil sketches to specified 2d-view assuming that matrices are already set correctly + * Note: this gets called twice - first time with onlyv2d=1 to draw 'canvas' strokes, second time with onlyv2d=0 for screen-aligned strokes + */ +void draw_gpencil_2dview (ScrArea *sa, short onlyv2d) +{ + bGPdata *gpd; + int dflag = 0; + + /* check that we have grease-pencil stuff to draw */ + if (sa == NULL) return; + gpd= gpencil_data_getactive(sa); + if (gpd == NULL) return; + + /* draw it! */ + if (onlyv2d) dflag |= (GP_DRAWDATA_ONLYV2D|GP_DRAWDATA_NOSTATUS); + gp_draw_data(gpd, sa->winx, sa->winy, dflag); +} + +/* draw grease-pencil sketches to specified 3d-view assuming that matrices are already set correctly + * Note: this gets called twice - first time with only3d=1 to draw 3d-strokes, second time with only3d=0 for screen-aligned strokes + */ +void draw_gpencil_3dview (ScrArea *sa, short only3d) +{ + bGPdata *gpd; + int dflag = 0; + + /* check that we have grease-pencil stuff to draw */ + gpd= gpencil_data_getactive(sa); + if (gpd == NULL) return; + + /* draw it! */ + if (only3d) dflag |= (GP_DRAWDATA_ONLY3D|GP_DRAWDATA_NOSTATUS); + gp_draw_data(gpd, sa->winx, sa->winy, dflag); +} + +/* draw grease-pencil sketches to opengl render window assuming that matrices are already set correctly */ +void draw_gpencil_oglrender (View3D *v3d, int winx, int winy) +{ + bGPdata *gpd; + + /* assume gpencil data comes from v3d */ + if (v3d == NULL) return; + gpd= v3d->gpd; + if (gpd == NULL) return; + + /* pass 1: draw 3d-strokes ------------ > */ + gp_draw_data(gpd, winx, winy, (GP_DRAWDATA_NOSTATUS|GP_DRAWDATA_ONLY3D)); + + /* pass 2: draw 2d-strokes ------------ > */ + /* adjust view matrices */ + myortho2(-0.375, (float)(winx)-0.375, -0.375, (float)(winy)-0.375); + glLoadIdentity(); + + /* draw it! */ + gp_draw_data(gpd, winx, winy, GP_DRAWDATA_NOSTATUS); +} + +/* ************************************************** */ |