[gimp/soc-2011-seamless-clone2: 2/11] commit of a WIP, introducing some of the actual tool logic
- From: Barak Itkin <barakitkin src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp/soc-2011-seamless-clone2: 2/11] commit of a WIP, introducing some of the actual tool logic
- Date: Fri, 22 Jun 2012 21:01:48 +0000 (UTC)
commit 113ab33e84400083bfa9d556a9259b1c38dd87e5
Author: Barak Itkin <lightningismyname gmail com>
Date: Sun Aug 7 17:31:29 2011 +0300
commit of a WIP, introducing some of the actual tool logic
app/tools/gimpseamlessclonetool.c | 175 +++++++++++++++++++++++++++---------
app/tools/gimpseamlessclonetool.h | 17 ++++
2 files changed, 148 insertions(+), 44 deletions(-)
---
diff --git a/app/tools/gimpseamlessclonetool.c b/app/tools/gimpseamlessclonetool.c
index 59de2f1..df29ee4 100644
--- a/app/tools/gimpseamlessclonetool.c
+++ b/app/tools/gimpseamlessclonetool.c
@@ -249,6 +249,12 @@ gimp_seamless_clone_tool_init (GimpSeamlessCloneTool *self)
gimp_tool_control_set_tool_cursor (tool->control,
GIMP_TOOL_CURSOR_MOVE);
+ /* In order to achieve as much instant reponse as possible, only care
+ * about the location of the mouse at present (while it's being moved)
+ * and ignore motion events that happened while we were dealing with
+ * previous motion events */
+ gimp_tool_control_set_motion_mode (tool->control, GIMP_MOTION_MODE_COMPRESS);
+
self->paste = NULL;
self->tricache = NULL;
@@ -301,14 +307,12 @@ gimp_seamless_clone_tool_control (GimpTool *tool,
break;
case GIMP_TOOL_ACTION_HALT:
+ /* We only have what to stop if we are active on some display */
+ if (tool->display != NULL)
+ gimp_seamless_clone_tool_stop (sc, FALSE);
- gimp_seamless_clone_tool_stop (sc, FALSE);
-
- /* When a tool Halts, it means it should finish completly. So set
- * the display to NULL. Why? Not sure exactly, especially when the
- * father classes also do it. But other tools do this, so reamin
- * with this for now.
- */
+ /* Now, mark that we have no display, so any needed initialization
+ * will happen on the next time a display is picked */
tool->display = NULL;
/* TODO: If we have any tool options that should be reset, here is
@@ -347,14 +351,23 @@ gimp_seamless_clone_tool_start (GimpSeamlessCloneTool *sc,
gint off_x;
gint off_y;
+ /* First handle the paste - we need to make sure we have one in order
+ * to do anything else. */
+ if (sc->paste == NULL)
+ {
+ /* TODO: Call to preprocessing should be done here, along with a
+ * call to cache the paste. If there is no paste, prompt nicely
+ * for a message requesting the user to actually copy something to
+ * the clipboard */
+ }
+
/* Free resources which are relevant only for the previous display */
gimp_seamless_clone_tool_stop (sc, TRUE);
/* Set the new tool display */
tool->display = display;
- /* Create the image map for the current display? The answer is no!
- * Create yourself once preprocessing is finished! */
+ sc->image_map = gimp_seamless_clone_tool_create_image_map (sc, drawable);
/* Now call the start method of the draw tool */
gimp_draw_tool_start (GIMP_DRAW_TOOL (sc), display);
@@ -494,10 +507,10 @@ gimp_seamless_clone_tool_key_press (GimpTool *tool,
static void
gimp_seamless_clone_tool_motion (GimpTool *tool,
- const GimpCoords *coords,
- guint32 time,
- GdkModifierType state,
- GimpDisplay *display)
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpDisplay *display)
{
sc_debug_fstart ();
@@ -508,7 +521,16 @@ gimp_seamless_clone_tool_motion (GimpTool *tool,
* won't be done using data in intermidiate states */
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
- /* TODO: Modify data here */
+ /* There is nothing to do, unless we were actually moving a paste */
+ if (sc->tool_state == SC_STATE_RENDER_MOTION)
+ {
+ gimp_draw_tool_pause (GIMP_DRAW_TOOL (sc));
+
+ sc->xoff = sc->xoff_p + (gint) (coords->x - sc->xclick);
+ sc->yoff = sc->yoff_p + (gint) (coords->y - sc->yclick);
+
+ gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
+ }
/* Done modifying data? If so, now restore the tool drawing */
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
@@ -518,10 +540,10 @@ gimp_seamless_clone_tool_motion (GimpTool *tool,
static void
gimp_seamless_clone_tool_oper_update (GimpTool *tool,
- const GimpCoords *coords,
- GdkModifierType state,
- gboolean proximity,
- GimpDisplay *display)
+ const GimpCoords *coords,
+ GdkModifierType state,
+ gboolean proximity,
+ GimpDisplay *display)
{
sc_debug_fstart ();
@@ -553,56 +575,90 @@ gimp_seamless_clone_tool_button_press (GimpTool *tool,
if (display != tool->display)
gimp_seamless_clone_tool_start (sc, display);
+ if (sc->tool_state == SC_STATE_RENDER_WAIT
+ && gimp_seamless_clone_tool_is_in_paste_c (sc, coords))
+ {
+ gimp_draw_tool_pause (GIMP_DRAW_TOOL (sc));
+
+ /* Record previous location, in case the user cancel's the
+ * movement */
+ sc->xoff_p = sc->xoff;
+ sc->yoff_p = sc->yoff;
+
+ /* Record the mouse location, so that the dragging offset can be
+ * calculated */
+ sc->xclick = coords->x;
+ sc->yclick = coords->y;
+
+ gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
+ }
+
sc_debug_fend ();
}
void
gimp_seamless_clone_tool_button_release (GimpTool *tool,
- const GimpCoords *coords,
- guint32 time,
- GdkModifierType state,
- GimpButtonReleaseType release_type,
- GimpDisplay *display)
+ const GimpCoords *coords,
+ guint32 time,
+ GdkModifierType state,
+ GimpButtonReleaseType release_type,
+ GimpDisplay *display)
{
sc_debug_fstart ();
GimpSeamlessCloneTool *sc = GIMP_SEAMLESS_CLONE_TOOL (tool);
- GimpSeamlessCloneOptions *options = GIMP_SEAMLESS_CLONE_TOOL_GET_OPTIONS (sc);
- gimp_draw_tool_pause (GIMP_DRAW_TOOL (sc));
-
- if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
+ /* There is nothing to do, unless we were actually moving a paste */
+ if (sc->tool_state == SC_STATE_RENDER_MOTION)
{
- /* Cancelling */
+ gimp_draw_tool_pause (GIMP_DRAW_TOOL (sc));
- }
- else
- {
- /* Normal release */
+ if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
+ {
+ sc->xoff = sc->xoff_p;
+ sc->yoff = sc->yoff_p;
+ }
+ else
+ {
+ sc->xoff = sc->xoff_p + (gint) (coords->x - sc->xclick);
+ sc->yoff = sc->yoff_p + (gint) (coords->y - sc->yclick);
+ }
+ gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
- gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
-
sc_debug_fend ();
}
+/* Mouse cursor policy:
+ * - Always use the move cursor
+ * - While dragging the paste, use a move modified
+ * - Else, While hovering above it, display no modifier
+ * - Else, display a "bad" modifier
+ */
static void
gimp_seamless_clone_tool_cursor_update (GimpTool *tool,
- const GimpCoords *coords,
- GdkModifierType state,
- GimpDisplay *display)
+ const GimpCoords *coords,
+ GdkModifierType state,
+ GimpDisplay *display)
{
sc_debug_fstart ();
+ GimpSeamlessCloneTool *sc = GIMP_SEAMLESS_CLONE_TOOL (tool);
+ GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_BAD;
- GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_PLUS;
-
+ /* Only update if the tool is actually active on some display */
if (tool->display)
{
- }
+ if (sc->tool_state == SC_STATE_RENDER_MOTION)
+ modifier = GIMP_CURSOR_MODIFIER_MOVE;
+
+ else if (sc->tool_state == SC_STATE_RENDER_WAIT
+ && gimp_seamless_clone_tool_is_in_paste_c (sc, coords))
+ modified = GIMP_CURSOR_MODIFIER_NONE;
- gimp_tool_control_set_cursor_modifier (tool->control, modifier);
+ gimp_tool_control_set_cursor_modifier (tool->control, modifier);
+ }
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
@@ -610,6 +666,9 @@ gimp_seamless_clone_tool_cursor_update (GimpTool *tool,
}
+/* Draw any required on canvas interaction. For now, this is kept empty.
+ * It's a place holder for the future of this tool, for some more
+ * advanced features that may be added later */
static void
gimp_seamless_clone_tool_draw (GimpDrawTool *draw_tool)
{
@@ -619,6 +678,11 @@ gimp_seamless_clone_tool_draw (GimpDrawTool *draw_tool)
}
+/* This function creates a Gegl node graph of the composition which is
+ * needed to render the drawable. The graph should have an "input" pad
+ * which will receive the drawable on which the preview is applied, and
+ * it should also have an "output" pad to which the final result will be
+ * rendered */
static void
gimp_seamless_clone_tool_create_render_node (GimpSeamlessCloneTool *sc)
{
@@ -637,17 +701,21 @@ gimp_seamless_clone_tool_render_node_update (GimpSeamlessCloneTool *sc)
}
+/* Create an image map to render the operation of the current tool with
+ * a preview on the given drawable */
static void
gimp_seamless_clone_tool_create_image_map (GimpSeamlessCloneTool *sc,
- GimpDrawable *drawable)
+ GimpDrawable *drawable)
{
sc_debug_fstart ();
+ /* FIrst, make sure we actually have the GEGL graph needed to render
+ * the operation's result */
if (!sc->render_node)
gimp_seamless_clone_tool_create_render_node (sc);
sc->image_map = gimp_image_map_new (drawable,
- _("Cage transform"),
+ _("Seamless Clone"),
sc->render_node,
NULL,
NULL);
@@ -660,9 +728,10 @@ gimp_seamless_clone_tool_create_image_map (GimpSeamlessCloneTool *sc,
}
+/* Flush (Refresh) the image map preview */
static void
gimp_seamless_clone_tool_image_map_flush (GimpImageMap *image_map,
- GimpTool *tool)
+ GimpTool *tool)
{
sc_debug_fstart ();
@@ -675,6 +744,14 @@ gimp_seamless_clone_tool_image_map_flush (GimpImageMap *image_map,
}
+/**
+ * gimp_seamless_clone_tool_image_map_update:
+ * @sc: A GimpSeamlessCloneTool to update
+ *
+ * This functions updates the image map preview displayed by a given
+ * GimpSeamlessCloneTool. The image_map must be initialized prior to the
+ * call to this function!
+ */
static void
gimp_seamless_clone_tool_image_map_update (GimpSeamlessCloneTool *sc)
{
@@ -688,10 +765,15 @@ gimp_seamless_clone_tool_image_map_update (GimpSeamlessCloneTool *sc)
gint off_x, off_y;
GeglRectangle visible;
+ /* Find out at which x,y is the top left corner of the currently
+ * displayed part */
gimp_display_shell_untransform_viewport (shell, &x, &y, &w, &h);
+ /* Find out where is our drawable positioned */
gimp_item_get_offset (item, &off_x, &off_y);
+ /* Create a rectangle from the intersection of the currently displayed
+ * part with the drawable */
gimp_rectangle_intersect (x, y, w, h,
off_x,
off_y,
@@ -702,9 +784,14 @@ gimp_seamless_clone_tool_image_map_update (GimpSeamlessCloneTool *sc)
&visible.width,
&visible.height);
+ /* Since the image_map_apply function receives a rectangle describing
+ * where it should update the preview, and since that rectangle should
+ * be relative to the drawable's location, we now offset back by the
+ * drawable's offsetts. */
visible.x -= off_x;
visible.y -= off_y;
+ /* Now update the image map and show this area */
gimp_image_map_apply (sc->image_map, &visible);
sc_debug_fend ();
diff --git a/app/tools/gimpseamlessclonetool.h b/app/tools/gimpseamlessclonetool.h
index f0367d5..a1724aa 100644
--- a/app/tools/gimpseamlessclonetool.h
+++ b/app/tools/gimpseamlessclonetool.h
@@ -66,6 +66,17 @@ struct _GimpSeamlessCloneTool
GimpImageMap *image_map; /* The image map object which renders
* the live preview, and commits it
* when at the end */
+
+ gint width, height; /* The width and height of the paste.
+ * Needed for mouse hit detection */
+
+ gint xoff, yoff; /* The current offset of the paste */
+ gint xoff_p, yoff_p; /* The previous offset of the paste */
+
+ gdouble xclick, yclick; /* The image location of the last
+ * mouse click. To be used when the
+ * mouse is in motion, to recalculate
+ * the xoff and yoff values */
};
struct _GimpSeamlessCloneToolClass
@@ -79,5 +90,11 @@ void gimp_seamless_clone_tool_register (GimpToolRegisterCallback callback,
GType gimp_seamless_clone_tool_get_type (void) G_GNUC_CONST;
+#define gimp_seamless_clone_tool_is_in_paste(sc,x0,y0) \
+ ( ((sc)->xoff <= (x0) && (x0) < (sc)->xoff + (sc)->width) \
+ && ((sc)->yoff <= (y0) && (y0) < (sc)->yoff + (sc)->height)) \
+
+#define gimp_seamless_clone_tool_is_in_paste_c(sc,coords) \
+ gimp_seamless_clone_tool_is_in_paste((sc),(coords)->x,(coords)->y)
#endif /* __GIMP_SEAMLESS_CLONE_TOOL_H__ */
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