View2D - Initial commit of Pan-View Operator

[blender.git] / source / blender / editors / include / UI_view2d.h

diff --git a/source/blender/editors/include/UI_view2d.h b/source/blender/editors/include/UI_view2d.h
index 481d96952e9b14d9f65678240262bc1f28897372..1929e29bb4acc7783d3050ffb44c619c007c1877 100644 (file)
--- a/source/blender/editors/include/UI_view2d.h
+++ b/source/blender/editors/include/UI_view2d.h
@@ -21,49 +21,90 @@
  * All rights reserved.
  *
  * 
- * Contributor(s): Blender Foundation
+ * Contributor(s): Blender Foundation, Joshua Leung
  *
+ *
+ * Generic 2d view with should allow drawing grids,
+ * panning, zooming, scrolling, .. 
  * ***** END GPL LICENSE BLOCK *****
  */
 
 #ifndef UI_VIEW2D_H
 #define UI_VIEW2D_H
 
-/* start of a generic 2d view with should allow drawing grids,
- * panning, zooming, scrolling, .. */
+/* ------------------------------------------ */
+/* Settings:                                                           */
+
+/* generic value to use when coordinate lies out of view when converting */
+#define V2D_IS_CLIPPED 12000
 
+/* ---  Grids --- */
+/* grid-units (for drawing time) */
 #define V2D_UNIT_SECONDS       0
 #define V2D_UNIT_FRAMES                1
 
+/* clamping of grid values to whole numbers */
 #define V2D_GRID_CLAMP         0
 #define V2D_GRID_NOCLAMP       1
 
-#define V2D_IS_CLIPPED 12000
+/* flags for grid-lines to draw */
+#define V2D_HORIZONTAL_LINES   (1<<0)
+#define V2D_VERTICAL_LINES             (1<<1)
+#define V2D_HORIZONTAL_AXIS            (1<<2)
+#define V2D_VERTICAL_AXIS              (1<<3)
+
+/* --- Scrollers --- */
+
+/* ------------------------------------------ */
+/* Macros:                                                             */
+
+/* test if mouse in a scrollbar */
+#define IN_2D_VERT_SCROLL(v2d, co) (BLI_in_rcti(&v2d->vert, co[0], co[1]))
+#define IN_2D_HORIZ_SCROLL(v2d, co) (BLI_in_rcti(&v2d->hor, co[0], co[1]))
 
-#define V2D_HORIZONTAL_LINES   1
-#define V2D_VERTICAL_LINES             2
-#define V2D_HORIZONTAL_AXIS            4
-#define V2D_VERTICAL_AXIS              8
+/* ------------------------------------------ */
+/* Type definitions:                                           */
 
 struct View2D;
 struct View2DGrid;
+struct View2DScrollers;
+
+struct wmWindowManager;
 struct bContext;
 
 typedef struct View2DGrid View2DGrid;
+typedef struct View2DScrollers View2DScrollers;
+
+/* ----------------------------------------- */
+/* Prototypes:                                             */
 
 /* setup */
 void UI_view2d_ortho(const struct bContext *C, struct View2D *v2d);
 void UI_view2d_update_size(struct View2D *v2d, int winx, int winy);
+void UI_view2d_enforce_status(struct View2D *v2d, int winx, int winy);
 
 /* grid drawing */
-View2DGrid *UI_view2d_calc_grid(const struct bContext *C, struct View2D *v2d, int unit, int type, int winx, int winy);
+View2DGrid *UI_view2d_calc_grid(const struct bContext *C, struct View2D *v2d, short unit, short type, int winx, int winy);
 void UI_view2d_draw_grid(const struct bContext *C, struct View2D *v2d, View2DGrid *grid, int flag);
 void UI_view2d_free_grid(View2DGrid *grid);
 
+/* scrollbar drawing */
+
+void UI_view2d_draw_scrollers(const struct bContext *C, struct View2D *v2d, View2DScrollers *scrollers, int flag);
+void UI_view2d_free_scrollbars(View2DScrollers *scrollers);
+
 /* coordinate conversion */
 void UI_view2d_region_to_view(struct View2D *v2d, short x, short y, float *viewx, float *viewy);
 void UI_view2d_view_to_region(struct View2D *v2d, float x, float y, short *regionx, short *regiony);
 void UI_view2d_to_region_no_clip(struct View2D *v2d, float x, float y, short *regionx, short *region_y);
 
+/* utilities */
+void UI_view2d_getscale(struct View2D *v2d, float *x, float *y);
+
+
+/* operators */
+void ui_view2d_operatortypes(void);
+void UI_view2d_keymap(struct wmWindowManager *wm);
+
 #endif /* UI_VIEW2D_H */