* Patch #6877: Zoom to Mouse Position

by Fahrezal Effendi (exavolt)

This adds an additional preference to the view and controls section, which uses the mouse's position as the centre of the zoom when zooming in the 3D View with Ctrl-MMB or the mouse wheel. It's very nice for big scenes, thanks Fahrezal!

A nice todo would be to add this for 2D views as well.

1 files changed, 56 insertions, 55 deletions

diff --git a/source/blender/makesdna/DNA_userdef_types.h b/source/blender/makesdna/DNA_userdef_types.h
index 7aa4dbdcf78..b4436dc69b2 100644
--- a/source/blender/makesdna/DNA_userdef_types.h
+++ b/source/blender/makesdna/DNA_userdef_types.h
@@ -189,23 +189,23 @@ extern UserDef U; /* from usiblender.c !!!! */
 /* ***************** USERDEF ****************** */
 
 /* flag */
-#define USER_AUTOSAVE			1
-#define USER_AUTOGRABGRID		2
-#define USER_AUTOROTGRID		4
-#define USER_AUTOSIZEGRID		8
-#define USER_SCENEGLOBAL		16
-#define USER_TRACKBALL			32
-#define USER_DUPLILINK			64
-#define USER_FSCOLLUM			128
-#define USER_MAT_ON_OB			256
-#define USER_NO_CAPSLOCK		512
-#define USER_VIEWMOVE			1024
-#define USER_TOOLTIPS			2048
-#define USER_TWOBUTTONMOUSE		4096
-#define USER_NONUMPAD			8192
-#define USER_LMOUSESELECT		16384
-#define USER_FILECOMPRESS		32768
-#define USER_SAVE_PREVIEWS		65536
+#define USER_AUTOSAVE			(1 << 0)
+#define USER_AUTOGRABGRID		(1 << 1)
+#define USER_AUTOROTGRID		(1 << 2)
+#define USER_AUTOSIZEGRID		(1 << 3)
+#define USER_SCENEGLOBAL		(1 << 4)
+#define USER_TRACKBALL			(1 << 5)
+#define USER_DUPLILINK			(1 << 6)
+#define USER_FSCOLLUM			(1 << 7)
+#define USER_MAT_ON_OB			(1 << 8)
+#define USER_NO_CAPSLOCK		(1 << 9)
+#define USER_VIEWMOVE			(1 << 10)
+#define USER_TOOLTIPS			(1 << 11)
+#define USER_TWOBUTTONMOUSE		(1 << 12)
+#define USER_NONUMPAD			(1 << 13)
+#define USER_LMOUSESELECT		(1 << 14)
+#define USER_FILECOMPRESS		(1 << 15)
+#define USER_SAVE_PREVIEWS		(1 << 16)
 
 /* viewzom */
 #define USER_ZOOM_CONT			0
@@ -214,51 +214,52 @@ extern UserDef U; /* from usiblender.c !!!! */
 
 /* uiflag */
 
-#define	USER_KEYINSERTACT		1
-#define	USER_KEYINSERTOBJ		2
-#define USER_WHEELZOOMDIR		4
-#define USER_FILTERFILEEXTS		8
-#define USER_DRAWVIEWINFO		16
-#define USER_PLAINMENUS			32		// old EVTTOCONSOLE print ghost events, here for tuhopuu compat. --phase
+#define	USER_KEYINSERTACT		(1 << 0)
+#define	USER_KEYINSERTOBJ		(1 << 1)
+#define USER_WHEELZOOMDIR		(1 << 2)
+#define USER_FILTERFILEEXTS		(1 << 3)
+#define USER_DRAWVIEWINFO		(1 << 4)
+#define USER_PLAINMENUS			(1 << 5)		// old EVTTOCONSOLE print ghost events, here for tuhopuu compat. --phase
 								// old flag for hide pulldown was here 
-#define USER_FLIPFULLSCREEN		128
-#define USER_ALLWINCODECS		256
-#define USER_MENUOPENAUTO		512
-#define USER_PANELPINNED		1024
-#define USER_AUTOPERSP     		2048
-#define USER_LOCKAROUND     	4096
-#define USER_GLOBALUNDO     	8192
-#define USER_ORBIT_SELECTION	16384
-#define USER_KEYINSERTAVAI		32768
-#define USER_HIDE_DOT			65536
-#define USER_SHOW_ROTVIEWICON	131072
-#define USER_SHOW_VIEWPORTNAME	262144
-#define USER_KEYINSERTNEED		524288
+#define USER_FLIPFULLSCREEN		(1 << 7)
+#define USER_ALLWINCODECS		(1 << 8)
+#define USER_MENUOPENAUTO		(1 << 9)
+#define USER_PANELPINNED		(1 << 10)
+#define USER_AUTOPERSP     		(1 << 11)
+#define USER_LOCKAROUND     	(1 << 12)
+#define USER_GLOBALUNDO     	(1 << 13)
+#define USER_ORBIT_SELECTION	(1 << 14)
+#define USER_KEYINSERTAVAI		(1 << 15)
+#define USER_HIDE_DOT			(1 << 16)
+#define USER_SHOW_ROTVIEWICON	(1 << 17)
+#define USER_SHOW_VIEWPORTNAME	(1 << 18)
+#define USER_KEYINSERTNEED		(1 << 19)
+#define USER_ZOOM_TO_MOUSEPOS	(1 << 20)
 
 /* transopts */
 
-#define	USER_TR_TOOLTIPS		1
-#define	USER_TR_BUTTONS			2
-#define USER_TR_MENUS			4
-#define USER_TR_FILESELECT		8
-#define USER_TR_TEXTEDIT		16
-#define USER_DOTRANSLATE		32
-#define USER_USETEXTUREFONT		64
-#define CONVERT_TO_UTF8			128
+#define	USER_TR_TOOLTIPS		(1 << 0)
+#define	USER_TR_BUTTONS			(1 << 1)
+#define USER_TR_MENUS			(1 << 2)
+#define USER_TR_FILESELECT		(1 << 3)
+#define USER_TR_TEXTEDIT		(1 << 4)
+#define USER_DOTRANSLATE		(1 << 5)
+#define USER_USETEXTUREFONT		(1 << 6)
+#define CONVERT_TO_UTF8			(1 << 7)
 
 /* dupflag */
 
-#define USER_DUP_MESH			1
-#define USER_DUP_CURVE			2
-#define USER_DUP_SURF			4
-#define USER_DUP_FONT			8
-#define USER_DUP_MBALL			16
-#define USER_DUP_LAMP			32
-#define USER_DUP_IPO			64
-#define USER_DUP_MAT			128
-#define USER_DUP_TEX			256
-#define	USER_DUP_ARM			512
-#define	USER_DUP_ACT			1024
+#define USER_DUP_MESH			(1 << 0)
+#define USER_DUP_CURVE			(1 << 1)
+#define USER_DUP_SURF			(1 << 2)
+#define USER_DUP_FONT			(1 << 3)
+#define USER_DUP_MBALL			(1 << 4)
+#define USER_DUP_LAMP			(1 << 5)
+#define USER_DUP_IPO			(1 << 6)
+#define USER_DUP_MAT			(1 << 7)
+#define USER_DUP_TEX			(1 << 8)
+#define	USER_DUP_ARM			(1 << 9)
+#define	USER_DUP_ACT			(1 << 10)
 
 /* gameflags */