- expanded internal windowmanager that it allows button panels in any

  window (type)
- each SpaceData struct (not the window!) can get 'block handlers'
  assigned, basically event codes that invoke drawing button panels.
- this is saved in files, and Panels behave in any window like it does now
  in buttonswindow
- it also means that a 'space window' should leave with a matrix set for
  buttons level
- try it in view3d header menu, 'view'->'backdrop'. this opens the old
  viewbuttons
- it all works non blocking! instant updates of viewbuttons visible in
  3d window now.

Not done yet:
- checking and fixing frontbuffer drawing (select a wireframe draws over)
- temporally vertices cannot be selected, is my next project
- closing or hiding Panels...
- styling stuff... i committed for others to review as well.

Have fun. this is certainly a huge improvement over the old viewbuttons!

3 files changed, 49 insertions, 13 deletions

diff --git a/source/blender/makesdna/DNA_screen_types.h b/source/blender/makesdna/DNA_screen_types.h
index 85aebbcd5b9..5618b8e40d4 100644
--- a/source/blender/makesdna/DNA_screen_types.h
+++ b/source/blender/makesdna/DNA_screen_types.h
@@ -85,7 +85,7 @@ typedef struct Panel {		/* the part from uiBlock that needs saved in file */
 	char panelname[64], tabname[64];	/* defined as UI_MAX_NAME_STR */
 	short ofsx, ofsy, sizex, sizey;
 	short flag, active;					/* active= used currently by a uiBlock */
-	int pad2;
+	short style, pad2;
 	struct Panel *paneltab;		/* this panel is tabbed in *paneltab */
 } Panel;
 
diff --git a/source/blender/makesdna/DNA_space_types.h b/source/blender/makesdna/DNA_space_types.h
index 8674eb3fb4c..5ec7892add8 100644
--- a/source/blender/makesdna/DNA_space_types.h
+++ b/source/blender/makesdna/DNA_space_types.h
@@ -55,21 +55,29 @@ struct BlendHandle;
 typedef struct SpaceLink SpaceLink;
 struct SpaceLink {
 	SpaceLink *next, *prev;
-	int spacetype, pad;
+	int spacetype;
+	float blockscale;
 	struct ScrArea *area;
+	short blockhandler[8];
 };
 
 typedef struct SpaceInfo {
 	SpaceLink *next, *prev;
-	int spacetype, pad1;
+	int spacetype;
+	float blockscale;
 	struct ScrArea *area;
+
+	short blockhandler[8];
 } SpaceInfo;
 
 typedef struct SpaceIpo {
 	SpaceLink *next, *prev;
-	int spacetype, pad1;
+	int spacetype;
+	float blockscale;
 	struct ScrArea *area;
 
+	short blockhandler[8];
+	
 	unsigned int rowbut, pad2; 
 	View2D v2d;
 	
@@ -90,9 +98,11 @@ typedef struct SpaceIpo {
 typedef struct SpaceButs {
 	SpaceLink *next, *prev;
 	int spacetype;
-	short re_align, pad1;
+	float blockscale;
 	struct ScrArea *area;
 
+	short blockhandler[8];
+
 	short cursens, curact;
 	short align, tabo;		/* align for panels, tab is old tab */
 	View2D v2d;
@@ -110,6 +120,8 @@ typedef struct SpaceButs {
 
 	short scriptblock;
 	short scaflag;
+	short re_align, pad1;
+	int pad2;
 	
 	char texact, tab[7];	/* storing tabs for each context */
 		
@@ -117,9 +129,12 @@ typedef struct SpaceButs {
 
 typedef struct SpaceSeq {
 	SpaceLink *next, *prev;
-	int spacetype, pad;
+	int spacetype;
+	float blockscale;
 	struct ScrArea *area;
 
+	short blockhandler[8];
+
 	View2D v2d;
 	
 	short mainb, zoom;
@@ -129,9 +144,12 @@ typedef struct SpaceSeq {
 
 typedef struct SpaceFile {
 	SpaceLink *next, *prev;
-	int spacetype, pad;
+	int spacetype;
+	float blockscale;
 	struct ScrArea *area;
 	
+	short blockhandler[8];
+
 	struct direntry *filelist;
 	int totfile;
 	char title[24];
@@ -163,9 +181,12 @@ typedef struct SpaceFile {
 
 typedef struct SpaceOops {
 	SpaceLink *next, *prev;
-	int spacetype, pad;
+	int spacetype;
+	float blockscale;
 	struct ScrArea *area;
 
+	short blockhandler[8];
+
 	View2D v2d;
 	
 	ListBase oops;
@@ -176,9 +197,12 @@ typedef struct SpaceOops {
 
 typedef struct SpaceImage {
 	SpaceLink *next, *prev;
-	int spacetype, pad;
+	int spacetype;
+	float blockscale;
 	struct ScrArea *area;
 
+	short blockhandler[8];
+
 	View2D v2d;
 	
 	struct Image *image;
@@ -194,17 +218,25 @@ typedef struct SpaceImage {
 typedef struct SpaceNla{
 	struct SpaceLink *next, *prev;
 	int spacetype;
-	short menunr, lock;
+	float blockscale;
 	struct ScrArea *area;
 
+	short blockhandler[8];
+
+	short menunr, lock;
+	int pad;
+	
 	View2D v2d;	
 } SpaceNla;
 
 typedef struct SpaceText {
 	SpaceLink *next, *prev;
-	int spacetype, pad;
+	int spacetype;
+	float blockscale;
 	struct ScrArea *area;
 
+	short blockhandler[8];
+
 	struct Text *text;	
 
 	int top, viewlines;
@@ -259,7 +291,8 @@ typedef struct ImaDir {
 
 typedef struct SpaceImaSel {
 	SpaceLink *next, *prev;
-	int spacetype, pad1;
+	int spacetype;
+	float blockscale;
 	struct ScrArea *area;
 	
 	char   title[28];
diff --git a/source/blender/makesdna/DNA_view3d_types.h b/source/blender/makesdna/DNA_view3d_types.h
index 8f1956a36b8..cf19e79f3a3 100644
--- a/source/blender/makesdna/DNA_view3d_types.h
+++ b/source/blender/makesdna/DNA_view3d_types.h
@@ -61,9 +61,12 @@ typedef struct BGpic {
 
 typedef struct View3D {
 	struct SpaceLink *next, *prev;
-	int spacetype, pad;
+	int spacetype;
+	float blockscale;
 	struct ScrArea *area;
 	
+	short blockhandler[8];
+
 	float viewmat[4][4];
 	float viewinv[4][4];
 	float persmat[4][4];