1 files changed, 348 insertions, 0 deletions
diff --git a/source/blender/editors/screen/area.c b/source/blender/editors/screen/area.c
new file mode 100644
index 00000000000..5acc3091364
--- /dev/null
+++ b/source/blender/editors/screen/area.c
@@ -0,0 +1,348 @@
+/**
+ * $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 "MEM_guardedalloc.h"
+
+#include "BLI_blenlib.h"
+#include "BLI_arithb.h"
+#include "BLI_rand.h"
+
+#include "BKE_global.h"
+#include "BKE_screen.h"
+#include "BKE_utildefines.h"
+
+#include "ED_area.h"
+#include "ED_screen.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+#include "wm_subwindow.h"
+
+#include "BIF_gl.h"
+#include "BIF_glutil.h"
+
+#include "BPY_extern.h"
+
+#include "screen_intern.h"
+
+/* general area and region code */
+
+static void region_draw_emboss(ARegion *ar)
+{
+	short winx, winy;
+	
+	winx= ar->winrct.xmax-ar->winrct.xmin;
+	winy= ar->winrct.ymax-ar->winrct.ymin;
+	
+	/* set transp line */
+	glEnable( GL_BLEND );
+	glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
+	
+	/* right  */
+	glColor4ub(0,0,0, 50);
+	sdrawline(winx, 0, winx, winy);
+	
+	/* bottom  */
+	glColor4ub(0,0,0, 80);
+	sdrawline(0, 0, winx, 0);
+	
+	/* top  */
+	glColor4ub(255,255,255, 60);
+	sdrawline(0, winy, winx, winy);
+
+	/* left  */
+	glColor4ub(255,255,255, 50);
+	sdrawline(0, 0, 0, winy);
+	
+	glDisable( GL_BLEND );
+}
+
+
+void ED_region_do_listen(ARegion *ar, wmNotifier *note)
+{
+	if(ar->type->listener)
+		ar->type->listener(ar, note);
+	
+	/* generic notes */
+	if(note->type==WM_NOTE_REDRAW)
+		ar->do_draw= 1;
+	if(note->type==WM_NOTE_REFRESH)
+		ar->do_refresh= 1;
+	
+}
+
+void ED_region_do_draw(bContext *C, ARegion *ar)
+{
+	ARegionType *at= ar->type;
+	
+	wm_subwindow_set(C->window, ar->swinid);
+	
+	if(ar->swinid && at->draw) {
+		at->draw(C, ar);
+	}
+	else {
+		float fac= 0.1*ar->swinid;
+		
+		glClearColor(0.5, fac, 1.0f-fac, 0.0); 
+		glClear(GL_COLOR_BUFFER_BIT);
+		
+		fac= BLI_frand();
+		glColor3f(fac, fac, fac);
+		glRecti(2,  2,  12,  12);
+		
+		region_draw_emboss(ar);
+	}
+	
+	ar->do_draw= 0;
+}
+
+void ED_region_do_refresh(bContext *C, ARegion *ar)
+{
+	ARegionType *at= ar->type;
+
+	/* refresh can be called before window opened */
+	if(ar->swinid)
+		wm_subwindow_set(C->window, ar->swinid);
+	
+	if (at->refresh) {
+		at->refresh(C, ar);
+	}
+	
+	ar->do_refresh= 0;
+}
+
+/* *************************************************************** */
+
+
+static int rct_fits(rcti *rect, char dir, int size)
+{
+	if(dir=='h') {
+		return rect->xmax-rect->xmin - size;
+	}
+	else { // 'v'
+		return rect->ymax-rect->ymin - size;
+	}
+}
+
+static void region_rect_recursive(ARegion *ar, rcti *remainder)
+{
+	if(ar==NULL)
+		return;
+	
+	/* clear state flag first */
+	ar->flag &= ~RGN_FLAG_TOO_SMALL;
+	
+	if(ar->size<ar->minsize)
+		ar->size= ar->minsize;
+	
+	/* hidden is user flag */
+	if(ar->flag & RGN_FLAG_HIDDEN);
+	/* remainder is too small for any usage */
+	else if( rct_fits(remainder, 'v', 1)==0 || rct_fits(remainder, 'h', 1) < 0 ) {
+		ar->flag |= RGN_FLAG_TOO_SMALL;
+	}
+	else if(ar->alignment==RGN_ALIGN_NONE) {
+		/* typically last region */
+		ar->winrct= *remainder;
+		BLI_init_rcti(remainder, 0, 0, 0, 0);
+	}
+	else if(ar->alignment==RGN_ALIGN_TOP || ar->alignment==RGN_ALIGN_BOTTOM) {
+		
+		if( rct_fits(remainder, 'v', ar->minsize) < 0 ) {
+			ar->flag |= RGN_FLAG_TOO_SMALL;
+		}
+		else {
+			int fac= rct_fits(remainder, 'v', ar->size);
+			
+			if(fac < 0 )
+				ar->size += fac;
+			
+			ar->winrct= *remainder;
+			
+			if(ar->alignment==RGN_ALIGN_TOP) {
+				ar->winrct.ymin= ar->winrct.ymax - ar->size;
+				remainder->ymax= ar->winrct.ymin-1;
+			}
+			else {
+				ar->winrct.ymax= ar->winrct.ymin + ar->size;
+				remainder->ymin= ar->winrct.ymax+1;
+			}
+		}
+	}
+	else if(ar->alignment==RGN_ALIGN_LEFT || ar->alignment==RGN_ALIGN_RIGHT) {
+		
+		if( rct_fits(remainder, 'h', ar->minsize) < 0 ) {
+			ar->flag |= RGN_FLAG_TOO_SMALL;
+		}
+		else {
+			int fac= rct_fits(remainder, 'h', ar->size);
+			
+			if(fac < 0 )
+				ar->size += fac;
+			
+			ar->winrct= *remainder;
+			
+			if(ar->alignment==RGN_ALIGN_RIGHT) {
+				ar->winrct.xmin= ar->winrct.xmax - ar->size;
+				remainder->xmax= ar->winrct.xmin-1;
+			}
+			else {
+				ar->winrct.xmax= ar->winrct.xmin + ar->size;
+				remainder->xmin= ar->winrct.xmax+1;
+			}
+		}
+	}
+	else {
+		/* percentage subdiv*/
+		ar->winrct= *remainder;
+		
+		if(ar->alignment==RGN_ALIGN_HSPLIT) {
+			ar->winrct.xmax= (remainder->xmin+remainder->xmax)/2;
+			remainder->xmin= ar->winrct.xmax+1;
+		}
+		else {
+			ar->winrct.ymax= (remainder->ymin+remainder->ymax)/2;
+			remainder->ymin= ar->winrct.ymax+1;
+		}
+	}
+	
+	region_rect_recursive(ar->next, remainder);
+}
+
+static void area_calc_totrct(ScrArea *sa, int sizex, int sizey)
+{
+	
+	if(sa->v1->vec.x>0) sa->totrct.xmin= sa->v1->vec.x+1;
+	else sa->totrct.xmin= sa->v1->vec.x;
+	if(sa->v4->vec.x<sizex-1) sa->totrct.xmax= sa->v4->vec.x-1;
+	else sa->totrct.xmax= sa->v4->vec.x;
+	
+	if(sa->v1->vec.y>0) sa->totrct.ymin= sa->v1->vec.y+1;
+	else sa->totrct.ymin= sa->v1->vec.y;
+	if(sa->v2->vec.y<sizey-1) sa->totrct.ymax= sa->v2->vec.y-1;
+	else sa->totrct.ymax= sa->v2->vec.y;
+	
+	/* for speedup */
+	sa->winx= sa->totrct.xmax-sa->totrct.xmin+1;
+	sa->winy= sa->totrct.ymax-sa->totrct.ymin+1;
+}
+
+/* called in screen_refresh, or screens_init */
+void ED_area_initialize(wmWindowManager *wm, wmWindow *win, ScrArea *sa)
+{
+	ARegion *ar;
+	rcti rect;
+	
+	/* set typedefinitions */
+	sa->type= BKE_spacetype_from_id(sa->spacetype);
+	if(sa->type==NULL) {
+		sa->spacetype= SPACE_VIEW3D;
+		sa->type= BKE_spacetype_from_id(sa->spacetype);
+	}
+	
+	area_calc_totrct(sa, win->sizex, win->sizey);
+	
+	/* regiontype callback, it should create/verify the amount of subregions with minsizes etc */
+	if(sa->type->init)
+		sa->type->init(sa);
+	
+	/* region rect sizes */
+	rect= sa->totrct;
+	region_rect_recursive(sa->regionbase.first, &rect);
+	
+	/* region windows */
+	for(ar= sa->regionbase.first; ar; ar= ar->next) {
+		if(ar->flag & (RGN_FLAG_HIDDEN|RGN_FLAG_TOO_SMALL)) {
+			if(ar->swinid)
+				wm_subwindow_close(win, ar->swinid);
+			ar->swinid= 0;
+		}
+		else if(ar->swinid==0)
+			ar->swinid= wm_subwindow_open(win, &ar->winrct);
+		else 
+			wm_subwindow_position(win, ar->swinid, &ar->winrct);
+	}
+}
+
+/* sa2 to sa1, we swap spaces for fullscreen to keep all allocated data */
+/* area vertices were set */
+
+void area_copy_data(ScrArea *sa1, ScrArea *sa2, int swap_space)
+{
+	Panel *pa1, *pa2, *patab;
+	ARegion *ar;
+	
+	sa1->headertype= sa2->headertype;
+	sa1->spacetype= sa2->spacetype;
+	
+	if(swap_space) {
+		SWAP(ListBase, sa1->spacedata, sa2->spacedata);
+		/* exception: ensure preview is reset */
+//		if(sa1->spacetype==SPACE_VIEW3D)
+// XXX			BIF_view3d_previewrender_free(sa1->spacedata.first);
+	}
+	else {
+		BKE_spacedata_freelist(&sa1->spacedata);
+		BKE_spacedata_copylist(&sa1->spacedata, &sa2->spacedata);
+	}
+	
+	BLI_freelistN(&sa1->panels);
+	BLI_duplicatelist(&sa1->panels, &sa2->panels);
+	
+	/* copy panel pointers */
+	for(pa1= sa1->panels.first; pa1; pa1= pa1->next) {
+		
+		patab= sa1->panels.first;
+		pa2= sa2->panels.first;
+		while(patab) {
+			if( pa1->paneltab == pa2) {
+				pa1->paneltab = patab;
+				break;
+			}
+			patab= patab->next;
+			pa2= pa2->next;
+		}
+	}
+	
+	/* regions */
+	BLI_freelistN(&sa1->regionbase);
+	BLI_duplicatelist(&sa1->regionbase, &sa2->regionbase);
+	for(ar= sa1->regionbase.first; ar; ar= ar->next)
+		ar->swinid= 0;
+	
+	/* scripts */
+	BPY_free_scriptlink(&sa1->scriptlink);
+	sa1->scriptlink= sa2->scriptlink;
+	BPY_copy_scriptlink(&sa1->scriptlink);	/* copies internal pointers */
+	
+}
+
+