2.5

Fixes:

- HSV picker didn't work. Old option "No Hilite" for buttons made it not
  being checked for input anymore. Needs to be on attention list!

- Node editor wasn't drawing buttons correctly. Two things to keep track
  off:
  - Use wmLoadIdentity(), not glLoadIdentity()
  - I've added a wmPushMatrix() and wmPopMatrix() version for correct
    wm-compatible push/pop. Only one level for now.

source/blender/editors/interface/interface.c

@@ -641,11 +641,8 @@ void uiDrawBlock(const bContext *C, uiBlock *block)
 	ui_but_to_pixelrect(&rect, ar, block, NULL);
 	
 	/* pixel space for AA widgets */
-	glMatrixMode(GL_PROJECTION);
-	glPushMatrix();
-	glMatrixMode(GL_MODELVIEW);
-	glPushMatrix();
-	glLoadIdentity();
+	wmPushMatrix();
+	wmLoadIdentity();
 	
 	wmOrtho2(-0.01f, ar->winx-0.01f, -0.01f, ar->winy-0.01f);
 	
@@ -664,10 +661,7 @@ void uiDrawBlock(const bContext *C, uiBlock *block)
 	}
 	
 	/* restore matrix */
-	glMatrixMode(GL_PROJECTION);
-	glPopMatrix();
-	glMatrixMode(GL_MODELVIEW);
-	glPopMatrix();
+	wmPopMatrix();
 	
 	ui_draw_links(block);
 }

source/blender/editors/interface/interface_regions.c

@@ -1193,10 +1193,8 @@ void uiBlockPickerButtons(uiBlock *block, float *col, float *hsv, float *old, ch
 	
 	// the cube intersection
 	bt= uiDefButF(block, HSVCUBE, retval, "",	0,DPICK+BPICK,FPICK,FPICK, col, 0.0, 0.0, 2, 0, "");
-	uiButSetFlag(bt, UI_NO_HILITE);
 
 	bt= uiDefButF(block, HSVCUBE, retval, "",	0,0,FPICK,BPICK, col, 0.0, 0.0, 3, 0, "");
-	uiButSetFlag(bt, UI_NO_HILITE);
 
 	// palette
 	

source/blender/windowmanager/WM_api.h

@@ -183,6 +183,8 @@ void		wmMultMatrix		(float mat[][4]);
 void		wmGetSingleMatrix	(float mat[][4]);
 void		wmScale				(float x, float y, float z);
 void		wmLoadIdentity		(void);		/* note: old name clear_view_mat */
+void		wmPushMatrix		(void);		/* one level only */
+void		wmPopMatrix			(void);		/* one level only */
 
 void		wmFrustum			(float x1, float x2, float y1, float y2, float n, float f);
 void		wmOrtho				(float x1, float x2, float y1, float y2, float n, float f);

source/blender/windowmanager/intern/wm_subwindow.c

@@ -68,6 +68,7 @@ typedef struct wmSubWindow {
 	int swinid;
 	
 	float viewmat[4][4], winmat[4][4];
+	float viewmat1[4][4], winmat1[4][4];
 } wmSubWindow;
 
 
@@ -306,6 +307,28 @@ void wmMultMatrix(float mat[][4])
 		glGetFloatv(GL_MODELVIEW_MATRIX, (float *)_curswin->winmat);
 }
 
+void wmPushMatrix(void)
+{
+	if(_curswin==NULL) return;
+	
+	Mat4CpyMat4(_curswin->viewmat1, _curswin->viewmat);
+	Mat4CpyMat4(_curswin->winmat1, _curswin->winmat);
+}
+
+void wmPopMatrix(void)
+{
+	if(_curswin==NULL) return;
+	
+	Mat4CpyMat4(_curswin->viewmat, _curswin->viewmat1);
+	Mat4CpyMat4(_curswin->winmat, _curswin->winmat1);
+	
+	glMatrixMode(GL_PROJECTION);
+	glLoadMatrixf(&_curswin->winmat[0][0]);
+	glMatrixMode(GL_MODELVIEW);
+	glLoadMatrixf(&_curswin->viewmat[0][0]);
+	
+}
+
 void wmGetSingleMatrix(float mat[][4])
 {
 	if(_curswin)