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Bug 663121 - guides are below rotate/transform/shear/perspective preview

Browse source 
Add a canvas item group for previews, and a small preview infrastructure
to GimpDrawTool, and put the transform preview into the preview group,
which is below all guides, grid and layer boundaries.
This commit is contained in:
Michael Natterer 2011-11-16 21:32:29 +01:00
parent ffc9948d6e
commit d38ded387d
5 changed files with 97 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

26
app/display/gimpdisplayshell-items.c
View file

@ -55,6 +55,10 @@ gimp_display_shell_items_init (GimpDisplayShell *shell)
gimp_display_shell_add_item (shell, shell->passe_partout);
g_object_unref (shell->passe_partout);
shell->preview_items = gimp_canvas_group_new (shell);
gimp_display_shell_add_item (shell, shell->preview_items);
g_object_unref (shell->preview_items);
shell->vectors = gimp_canvas_proxy_group_new (shell);
gimp_display_shell_add_item (shell, shell->vectors);
g_object_unref (shell->vectors);
@ -107,11 +111,13 @@ gimp_display_shell_items_free (GimpDisplayShell *shell)
shell->canvas_item = NULL;
shell->passe_partout = NULL;
shell->preview_items = NULL;
shell->vectors = NULL;
shell->grid = NULL;
shell->guides = NULL;
shell->sample_points = NULL;
shell->layer_boundary = NULL;
shell->tool_items = NULL;
shell->cursor = NULL;
}
}
@ -136,6 +142,26 @@ gimp_display_shell_remove_item (GimpDisplayShell *shell,
gimp_canvas_group_remove_item (GIMP_CANVAS_GROUP (shell->canvas_item), item);
}
void
gimp_display_shell_add_preview_item (GimpDisplayShell *shell,
GimpCanvasItem *item)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
g_return_if_fail (GIMP_IS_CANVAS_ITEM (item));
gimp_canvas_group_add_item (GIMP_CANVAS_GROUP (shell->preview_items), item);
}
void
gimp_display_shell_remove_preview_item (GimpDisplayShell *shell,
GimpCanvasItem *item)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
g_return_if_fail (GIMP_IS_CANVAS_ITEM (item));
gimp_canvas_group_remove_item (GIMP_CANVAS_GROUP (shell->preview_items), item);
}
void
gimp_display_shell_add_tool_item (GimpDisplayShell *shell,
GimpCanvasItem *item)

25
app/display/gimpdisplayshell-items.h
View file

@ -22,18 +22,23 @@
#define __GIMP_DISPLAY_SHELL_ITEMS_H__
void gimp_display_shell_items_init (GimpDisplayShell *shell);
void gimp_display_shell_items_free (GimpDisplayShell *shell);
void gimp_display_shell_items_init (GimpDisplayShell *shell);
void gimp_display_shell_items_free (GimpDisplayShell *shell);
void gimp_display_shell_add_item (GimpDisplayShell *shell,
GimpCanvasItem *item);
void gimp_display_shell_remove_item (GimpDisplayShell *shell,
GimpCanvasItem *item);
void gimp_display_shell_add_item (GimpDisplayShell *shell,
GimpCanvasItem *item);
void gimp_display_shell_remove_item (GimpDisplayShell *shell,
GimpCanvasItem *item);
void gimp_display_shell_add_tool_item (GimpDisplayShell *shell,
GimpCanvasItem *item);
void gimp_display_shell_remove_tool_item (GimpDisplayShell *shell,
GimpCanvasItem *item);
void gimp_display_shell_add_preview_item (GimpDisplayShell *shell,
GimpCanvasItem *item);
void gimp_display_shell_remove_preview_item (GimpDisplayShell *shell,
GimpCanvasItem *item);
void gimp_display_shell_add_tool_item (GimpDisplayShell *shell,
GimpCanvasItem *item);
void gimp_display_shell_remove_tool_item (GimpDisplayShell *shell,
GimpCanvasItem *item);
#endif /* __GIMP_DISPLAY_SHELL_ITEMS_H__ */

1
app/display/gimpdisplayshell.h
View file

@ -120,6 +120,7 @@ struct _GimpDisplayShell
GimpCanvasItem *canvas_item; /* items drawn on the canvas */
GimpCanvasItem *passe_partout; /* item for the highlight */
GimpCanvasItem *preview_items; /* item for previews */
GimpCanvasItem *vectors; /* item proxy of vectors */
GimpCanvasItem *grid; /* item proxy of the grid */
GimpCanvasItem *guides; /* item proxies of guides */

60
app/tools/gimpdrawtool.c
View file

@ -103,6 +103,7 @@ gimp_draw_tool_init (GimpDrawTool *draw_tool)
{
draw_tool->display = NULL;
draw_tool->paused_count = 0;
draw_tool->preview = NULL;
draw_tool->item = NULL;
}
@ -193,6 +194,8 @@ gimp_draw_tool_draw (GimpDrawTool *draw_tool)
draw_tool->paused_count == 0 &&
! draw_tool->draw_timeout)
{
GimpDisplayShell *shell = gimp_display_get_shell (draw_tool->display);
gimp_draw_tool_undraw (draw_tool);
GIMP_DRAW_TOOL_GET_CLASS (draw_tool)->draw (draw_tool);
@ -208,25 +211,34 @@ gimp_draw_tool_draw (GimpDrawTool *draw_tool)
gimp_draw_tool_pop_group (draw_tool);
}
if (draw_tool->item)
{
GimpDisplayShell *shell = gimp_display_get_shell (draw_tool->display);
if (draw_tool->preview)
gimp_display_shell_add_preview_item (shell, draw_tool->preview);
gimp_display_shell_add_tool_item (shell, draw_tool->item);
}
if (draw_tool->item)
gimp_display_shell_add_tool_item (shell, draw_tool->item);
}
}
static void
gimp_draw_tool_undraw (GimpDrawTool *draw_tool)
{
if (draw_tool->display && draw_tool->item)
if (draw_tool->display)
{
GimpDisplayShell *shell = gimp_display_get_shell (draw_tool->display);
gimp_display_shell_remove_tool_item (shell, draw_tool->item);
g_object_unref (draw_tool->item);
draw_tool->item = NULL;
if (draw_tool->preview)
{
gimp_display_shell_remove_preview_item (shell, draw_tool->preview);
g_object_unref (draw_tool->preview);
draw_tool->preview = NULL;
}
if (draw_tool->item)
{
gimp_display_shell_remove_tool_item (shell, draw_tool->item);
g_object_unref (draw_tool->item);
draw_tool->item = NULL;
}
}
}
@ -373,6 +385,31 @@ gimp_draw_tool_calc_distance_square (GimpDrawTool *draw_tool,
return SQR (tx2 - tx1) + SQR (ty2 - ty1);
}
void
gimp_draw_tool_add_preview (GimpDrawTool *draw_tool,
GimpCanvasItem *item)
{
g_return_if_fail (GIMP_IS_DRAW_TOOL (draw_tool));
g_return_if_fail (GIMP_IS_CANVAS_ITEM (item));
if (! draw_tool->preview)
draw_tool->preview =
gimp_canvas_group_new (gimp_display_get_shell (draw_tool->display));
gimp_canvas_group_add_item (GIMP_CANVAS_GROUP (draw_tool->preview), item);
}
void
gimp_draw_tool_remove_preview (GimpDrawTool *draw_tool,
GimpCanvasItem *item)
{
g_return_if_fail (GIMP_IS_DRAW_TOOL (draw_tool));
g_return_if_fail (GIMP_IS_CANVAS_ITEM (item));
g_return_if_fail (draw_tool->preview != NULL);
gimp_canvas_group_remove_item (GIMP_CANVAS_GROUP (draw_tool->preview), item);
}
void
gimp_draw_tool_add_item (GimpDrawTool *draw_tool,
GimpCanvasItem *item)
@ -383,7 +420,8 @@ gimp_draw_tool_add_item (GimpDrawTool *draw_tool,
g_return_if_fail (GIMP_IS_CANVAS_ITEM (item));
if (! draw_tool->item)
draw_tool->item = gimp_canvas_group_new (gimp_display_get_shell (draw_tool->display));
draw_tool->item =
gimp_canvas_group_new (gimp_display_get_shell (draw_tool->display));
group = GIMP_CANVAS_GROUP (draw_tool->item);
@ -911,7 +949,7 @@ gimp_draw_tool_add_transform_preview (GimpDrawTool *draw_tool,
x1, y1, x2, y2,
perspective, opacity);
gimp_draw_tool_add_item (draw_tool, item);
gimp_draw_tool_add_preview (draw_tool, item);
g_object_unref (item);
return item;

6
app/tools/gimpdrawtool.h
View file

@ -49,6 +49,7 @@ struct _GimpDrawTool
gint paused_count; /* count to keep track of multiple pauses */
guint draw_timeout; /* draw delay timeout ID */
GimpCanvasItem *preview;
GimpCanvasItem *item;
GList *group_stack;
};
@ -87,6 +88,11 @@ gdouble gimp_draw_tool_calc_distance_square (GimpDrawTool *draw_too
gdouble x2,
gdouble y2);
void gimp_draw_tool_add_preview (GimpDrawTool *draw_tool,
GimpCanvasItem *item);
void gimp_draw_tool_remove_preview (GimpDrawTool *draw_tool,
GimpCanvasItem *item);
void gimp_draw_tool_add_item (GimpDrawTool *draw_tool,
GimpCanvasItem *item);
void gimp_draw_tool_remove_item (GimpDrawTool *draw_tool,