[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [26468] trunk/blender/source/blender: Various tweaks to View2D code for handling of scrollbar interactions in relation to bug 19881 :

Joshua Leung aligorith at gmail.com
Sun Jan 31 12:13:33 CET 2010


Revision: 26468
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=26468
Author:   aligorith
Date:     2010-01-31 12:13:31 +0100 (Sun, 31 Jan 2010)

Log Message:
-----------
Various tweaks to View2D code for handling of scrollbar interactions in relation to bug 19881:

* Clearly labelled the way that the scrollbar hiding works. Also see the report comments for an overview
* Added another pair of flags for another one of the cases in which scrollbars should also get ignored; when the entire contents of the view are visible, a pair of flags is now set in the view2d data (instead of for the scrollers tempdata only) for detecting this case too
* Fixed the potential for scrollbars without zoom handles shown to have those handles still considered. This still happened in the User Preferences window, but has now been disabled.

--

These changes still don't solve the bug though. Currently after the scrollbar operator passes through, the Outliner's activate-selection operators still fail to start. 

Modified Paths:
--------------
    trunk/blender/source/blender/editors/interface/interface_draw.c
    trunk/blender/source/blender/editors/interface/interface_handlers.c
    trunk/blender/source/blender/editors/interface/view2d.c
    trunk/blender/source/blender/editors/interface/view2d_ops.c
    trunk/blender/source/blender/makesdna/DNA_view2d_types.h

Modified: trunk/blender/source/blender/editors/interface/interface_draw.c
===================================================================
--- trunk/blender/source/blender/editors/interface/interface_draw.c	2010-01-31 11:01:13 UTC (rev 26467)
+++ trunk/blender/source/blender/editors/interface/interface_draw.c	2010-01-31 11:13:31 UTC (rev 26468)
@@ -731,7 +731,7 @@
 	glScissor(ar->winrct.xmin + (rect.xmin-1), ar->winrct.ymin+(rect.ymin-1), (rect.xmax+1)-(rect.xmin-1), (rect.ymax+1)-(rect.ymin-1));
 		
 	for (rgb=0; rgb<3; rgb++) {
-		float *data;
+		float *data = NULL;
 		
 		if (rgb==0)			data = hist->data_r;
 		else if (rgb==1)	data = hist->data_g;

Modified: trunk/blender/source/blender/editors/interface/interface_handlers.c
===================================================================
--- trunk/blender/source/blender/editors/interface/interface_handlers.c	2010-01-31 11:01:13 UTC (rev 26467)
+++ trunk/blender/source/blender/editors/interface/interface_handlers.c	2010-01-31 11:13:31 UTC (rev 26468)
@@ -4234,13 +4234,13 @@
 		mask_rct.ymin= v2d->mask.ymin;
 		mask_rct.ymax= v2d->mask.ymax;
 		
-		if (v2d->scroll & V2D_SCROLL_VERTICAL_HIDE) {
+		if (v2d->scroll & (V2D_SCROLL_VERTICAL_HIDE|V2D_SCROLL_VERTICAL_FULLR)) {
 			if (v2d->scroll & V2D_SCROLL_LEFT)
 				mask_rct.xmin= v2d->vert.xmin;
 			else if (v2d->scroll & V2D_SCROLL_RIGHT)
 				mask_rct.xmax= v2d->vert.xmax;
 		}
-		if (v2d->scroll & V2D_SCROLL_HORIZONTAL_HIDE) {
+		if (v2d->scroll & (V2D_SCROLL_HORIZONTAL_HIDE|V2D_SCROLL_HORIZONTAL_FULLR)) {
 			if (v2d->scroll & (V2D_SCROLL_BOTTOM|V2D_SCROLL_BOTTOM_O))
 				mask_rct.ymin= v2d->hor.ymin;
 			else if (v2d->scroll & V2D_SCROLL_TOP)

Modified: trunk/blender/source/blender/editors/interface/view2d.c
===================================================================
--- trunk/blender/source/blender/editors/interface/view2d.c	2010-01-31 11:01:13 UTC (rev 26467)
+++ trunk/blender/source/blender/editors/interface/view2d.c	2010-01-31 11:13:31 UTC (rev 26468)
@@ -62,7 +62,12 @@
 
 /* *********************************************************************** */
 
-/* helper to allow scrollbars to dynamically hide */
+/* helper to allow scrollbars to dynamically hide
+ * 	- returns a copy of the scrollbar settings with the flags to display 
+ *	  horizontal/vertical scrollbars removed
+ *	- input scroll value is the v2d->scroll var
+ *	- hide flags are set per region at drawtime
+ */
 static int view2d_scroll_mapped(int scroll)
 {
 	if(scroll & V2D_SCROLL_HORIZONTAL_HIDE)
@@ -1411,10 +1416,14 @@
 			CLAMP(scrollers->hor_min, hor.xmin, hor.xmax-V2D_SCROLLER_HANDLE_SIZE);
 		}
 		
-		/* check whether sliders can disappear */
+		/* check whether sliders can disappear due to the full-range being used */
 		if(v2d->keeptot) {
-			if(fac1 <= 0.0f && fac2 >= 1.0f) 
+			if ((fac1 <= 0.0f) && (fac2 >= 1.0f)) { 
+				v2d->scroll |= V2D_SCROLL_HORIZONTAL_FULLR;
 				scrollers->horfull= 1;
+			}
+			else	
+				v2d->scroll &= ~V2D_SCROLL_HORIZONTAL_FULLR;
 		}
 	}
 	
@@ -1448,10 +1457,14 @@
 			CLAMP(scrollers->vert_min, vert.ymin, vert.ymax-V2D_SCROLLER_HANDLE_SIZE);
 		}
 
-		/* check whether sliders can disappear */
+		/* check whether sliders can disappear due to the full-range being used */
 		if(v2d->keeptot) {
-			if(fac1 <= 0.0f && fac2 >= 1.0f) 
+			if ((fac1 <= 0.0f) && (fac2 >= 1.0f)) { 
+				v2d->scroll |= V2D_SCROLL_VERTICAL_FULLR;
 				scrollers->vertfull= 1;
+			}
+			else	
+				v2d->scroll &= ~V2D_SCROLL_VERTICAL_FULLR;
 		}
 	}
 	

Modified: trunk/blender/source/blender/editors/interface/view2d_ops.c
===================================================================
--- trunk/blender/source/blender/editors/interface/view2d_ops.c	2010-01-31 11:01:13 UTC (rev 26467)
+++ trunk/blender/source/blender/editors/interface/view2d_ops.c	2010-01-31 11:13:31 UTC (rev 26468)
@@ -1414,6 +1414,18 @@
 		scroller_activate_init(C, op, event, in_scroller);
 		vsm= (v2dScrollerMove *)op->customdata;
 		
+		/* check if zoom zones are inappropriate (i.e. zoom widgets not shown), so cannot continue
+		 * NOTE: see view2d.c for latest conditions, and keep this in sync with that
+		 */
+		if (ELEM(vsm->zone, SCROLLHANDLE_MIN, SCROLLHANDLE_MAX)) {
+			if ( ((vsm->scroller=='h') && (v2d->scroll & V2D_SCROLL_SCALE_HORIZONTAL)==0) ||
+				 ((vsm->scroller=='v') && (v2d->scroll & V2D_SCROLL_SCALE_VERTICAL)==0) )
+			{
+				/* switch to bar (i.e. no scaling gets handled) */
+				vsm->zone= SCROLLHANDLE_BAR;
+			}
+		}
+		
 		/* check if zone is inappropriate (i.e. 'bar' but panning is banned), so cannot continue */
 		if (vsm->zone == SCROLLHANDLE_BAR) {
 			if ( ((vsm->scroller=='h') && (v2d->keepofs & V2D_LOCKOFS_X)) ||
@@ -1426,15 +1438,21 @@
 				return OPERATOR_PASS_THROUGH;
 			}			
 		}
+		
 		/* zone is also inappropriate if scroller is not visible... */
-		if ( ((vsm->scroller=='h') && (v2d->scroll & V2D_SCROLL_HORIZONTAL_HIDE)) ||
-			 ((vsm->scroller=='v') && (v2d->scroll & V2D_SCROLL_VERTICAL_HIDE)) )
+		if ( ((vsm->scroller=='h') && (v2d->scroll & (V2D_SCROLL_HORIZONTAL_HIDE|V2D_SCROLL_HORIZONTAL_FULLR))) ||
+			 ((vsm->scroller=='v') && (v2d->scroll & (V2D_SCROLL_VERTICAL_HIDE|V2D_SCROLL_VERTICAL_FULLR))) )
 		{
+			/* free customdata initialised */
+			scroller_activate_exit(C, op);
+				
 			/* can't catch this event for ourselves, so let it go to someone else? */
+			// FIXME: still this doesn't fall through to the item_activate callback for the outliner...
 			return OPERATOR_PASS_THROUGH;
 		}
 		
-		if(vsm->scroller=='h')
+		/* activate the scroller */
+		if (vsm->scroller=='h')
 			v2d->scroll_ui |= V2D_SCROLL_H_ACTIVE;
 		else
 			v2d->scroll_ui |= V2D_SCROLL_V_ACTIVE;

Modified: trunk/blender/source/blender/makesdna/DNA_view2d_types.h
===================================================================
--- trunk/blender/source/blender/makesdna/DNA_view2d_types.h	2010-01-31 11:01:13 UTC (rev 26467)
+++ trunk/blender/source/blender/makesdna/DNA_view2d_types.h	2010-01-31 11:13:31 UTC (rev 26468)
@@ -124,9 +124,12 @@
 #define V2D_SCROLL_SCALE_VERTICAL	(1<<5)
 	/* scale markings - horizontal */	
 #define V2D_SCROLL_SCALE_HORIZONTAL	(1<<6)
-	/* disable draw temporary */
+	/* induce hiding of scrollbars - set by region drawing in response to size of region */
 #define V2D_SCROLL_VERTICAL_HIDE	(1<<7)		
 #define V2D_SCROLL_HORIZONTAL_HIDE	(1<<8)
+	/* scrollbar extends beyond its available window - set when calculating scrollbars for drawing */
+#define V2D_SCROLL_VERTICAL_FULLR 	(1<<9)	
+#define V2D_SCROLL_HORIZONTAL_FULLR (1<<10)	
 
 /* scroll_ui, activate flag for drawing */
 #define V2D_SCROLL_H_ACTIVE			(1<<0)





More information about the Bf-blender-cvs mailing list