[gimp/wip/gradient-edit: 219/225] app: implement tool undo for gradient editing in the blend tool
- From: N/A <ell src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp/wip/gradient-edit: 219/225] app: implement tool undo for gradient editing in the blend tool
- Date: Fri, 6 Oct 2017 17:08:52 +0000 (UTC)
commit 04342ea611adcfa4717ea8e835c44ff7e251ed0a
Author: Ell <ell_se yahoo com>
Date: Thu Aug 3 19:59:21 2017 -0400
app: implement tool undo for gradient editing in the blend tool
Move the tool undo functionality of the blend tool to the editor,
and add support for undoing gradient edit operations. Each undo
step that affects the gradient holds, in addition to the line
endpoint poisitions, a copy of the gradient at the beginning of the
operation, as well as necessary information to allow the selection
to "follow" undo. When undoing the operation, the saved gradient
is copied back to the active gradient.
To avoid all kinds of complex scenarios, when the active gradient
changes, or when the gradient is modified externally (e.g., by the
(old) gradient editor), all undo steps that affect the gradient are
deleted from the history, while those that affect only the endpoint
positions are kept.
app/tools/gimpblendtool-editor.c | 726 ++++++++++++++++++++++++++++++++------
app/tools/gimpblendtool-editor.h | 26 +-
app/tools/gimpblendtool.c | 197 +++--------
app/tools/gimpblendtool.h | 9 +-
4 files changed, 691 insertions(+), 267 deletions(-)
---
diff --git a/app/tools/gimpblendtool-editor.c b/app/tools/gimpblendtool-editor.c
index e1afe3c..7d914ad 100644
--- a/app/tools/gimpblendtool-editor.c
+++ b/app/tools/gimpblendtool-editor.c
@@ -61,101 +61,139 @@ typedef enum
} Direction;
+typedef struct
+{
+ /* line endpoints at the beginning of the operation */
+ gdouble start_x;
+ gdouble start_y;
+ gdouble end_x;
+ gdouble end_y;
+
+ /* copy of the gradient at the beginning of the operation, owned by the blend
+ * info, or NULL, if the gradient isn't affected
+ */
+ GimpGradient *gradient;
+
+ /* handle added by the operation, or HANDLE_NONE */
+ gint added_handle;
+ /* handle removed by the operation, or HANDLE_NONE */
+ gint removed_handle;
+ /* selected handle at the end of the operation, or HANDLE_NONE */
+ gint selected_handle;
+} BlendInfo;
+
+
/* local function prototypes */
-static gboolean gimp_blend_tool_editor_line_can_add_slider (GimpToolLine
*line,
- gdouble
value,
- GimpBlendTool
*blend_tool);
-static gint gimp_blend_tool_editor_line_add_slider (GimpToolLine
*line,
- gdouble
value,
- GimpBlendTool
*blend_tool);
-static void gimp_blend_tool_editor_line_remove_slider (GimpToolLine
*line,
- gint
slider,
- GimpBlendTool
*blend_tool);
-static void gimp_blend_tool_editor_line_selection_changed (GimpToolLine
*line,
- GimpBlendTool
*blend_tool);
-static gboolean gimp_blend_tool_editor_line_handle_clicked (GimpToolLine
*line,
- gint
handle,
- GdkModifierType
state,
- GimpButtonPressType
press_type,
- GimpBlendTool
*blend_tool);
-
-static void gimp_blend_tool_editor_gui_response (GimpToolGui
*gui,
- gint
response_id,
- GimpBlendTool
*blend_tool);
-
-static void gimp_blend_tool_editor_color_entry_color_changed (GimpColorButton
*button,
- GimpBlendTool
*blend_tool);
-
-static void gimp_blend_tool_editor_color_entry_type_changed (GtkComboBox
*combo,
- GimpBlendTool
*blend_tool);
-
-static void gimp_blend_tool_editor_endpoint_se_value_changed (GimpSizeEntry
*se,
- GimpBlendTool
*blend_tool);
-
-static void gimp_blend_tool_editor_stop_spinbutton_value_changed (GtkAdjustment
*adjustment,
- GimpBlendTool
*blend_tool);
-
-static void gimp_blend_tool_editor_stop_delete_clicked (GtkWidget
*button,
- GimpBlendTool
*blend_tool);
-
-static void gimp_blend_tool_editor_midpoint_spinbutton_value_changed (GtkAdjustment
*adjustment,
- GimpBlendTool
*blend_tool);
-
-static void gimp_blend_tool_editor_midpoint_type_changed (GtkComboBox
*combo,
- GimpBlendTool
*blend_tool);
-
-static void gimp_blend_tool_editor_midpoint_color_changed (GtkComboBox
*combo,
- GimpBlendTool
*blend_tool);
-
-static void gimp_blend_tool_editor_midpoint_new_stop_clicked (GtkWidget
*button,
- GimpBlendTool
*blend_tool);
-static void gimp_blend_tool_editor_midpoint_center_clicked (GtkWidget
*button,
- GimpBlendTool
*blend_tool);
-
-static gboolean gimp_blend_tool_editor_is_gradient_editable (GimpBlendTool
*blend_tool);
-
-static gboolean gimp_blend_tool_editor_handle_is_endpoint (GimpBlendTool
*blend_tool,
- gint
handle);
-static gboolean gimp_blend_tool_editor_handle_is_stop (GimpBlendTool
*blend_tool,
- gint
handle);
-static gboolean gimp_blend_tool_editor_handle_is_midpoint (GimpBlendTool
*blend_tool,
- gint
handle);
-static GimpGradientSegment * gimp_blend_tool_editor_handle_get_segment (GimpBlendTool
*blend_tool,
- gint
handle);
-
-static void gimp_blend_tool_editor_block_handlers (GimpBlendTool
*blend_tool);
-static void gimp_blend_tool_editor_unblock_handlers (GimpBlendTool
*blend_tool);
-static gboolean gimp_blend_tool_editor_are_handlers_blocked (GimpBlendTool
*blend_tool);
-
-static void gimp_blend_tool_editor_freeze_gradient (GimpBlendTool
*blend_tool);
-static void gimp_blend_tool_editor_thaw_gradient (GimpBlendTool
*blend_tool);
-
-static gint gimp_blend_tool_editor_add_stop (GimpBlendTool
*blend_tool,
- gdouble
value);
-static void gimp_blend_tool_editor_delete_stop (GimpBlendTool
*blend_tool,
- gint
slider);
-static gint gimp_blend_tool_editor_midpoint_to_stop (GimpBlendTool
*blend_tool,
- gint
slider);
-
-static void gimp_blend_tool_editor_update_sliders (GimpBlendTool
*blend_tool);
-
-static GtkWidget * gimp_blend_tool_editor_color_entry_new (GimpBlendTool
*blend_tool,
- const gchar
*title,
- Direction
direction,
- GtkWidget
*chain_button,
- GtkWidget
**color_panel,
- GtkWidget
**type_combo);
-static void gimp_blend_tool_editor_init_endpoint_gui (GimpBlendTool
*blend_tool);
-static void gimp_blend_tool_editor_init_stop_gui (GimpBlendTool
*blend_tool);
-static void gimp_blend_tool_editor_init_midpoint_gui (GimpBlendTool
*blend_tool);
-static void gimp_blend_tool_editor_update_endpoint_gui (GimpBlendTool
*blend_tool,
- gint
selection);
-static void gimp_blend_tool_editor_update_stop_gui (GimpBlendTool
*blend_tool,
- gint
selection);
-static void gimp_blend_tool_editor_update_midpoint_gui (GimpBlendTool
*blend_tool,
- gint
selection);
-static void gimp_blend_tool_editor_update_gui (GimpBlendTool
*blend_tool);
+static gboolean gimp_blend_tool_editor_line_can_add_slider (GimpToolLine
*line,
+ gdouble
value,
+ GimpBlendTool
*blend_tool);
+static gint gimp_blend_tool_editor_line_add_slider (GimpToolLine
*line,
+ gdouble
value,
+ GimpBlendTool
*blend_tool);
+static void gimp_blend_tool_editor_line_remove_slider (GimpToolLine
*line,
+ gint
slider,
+ GimpBlendTool
*blend_tool);
+static void gimp_blend_tool_editor_line_selection_changed (GimpToolLine
*line,
+ GimpBlendTool
*blend_tool);
+static gboolean gimp_blend_tool_editor_line_handle_clicked (GimpToolLine
*line,
+ gint
handle,
+ GdkModifierType
state,
+ GimpButtonPressType
press_type,
+ GimpBlendTool
*blend_tool);
+
+static void gimp_blend_tool_editor_gui_response (GimpToolGui
*gui,
+ gint
response_id,
+ GimpBlendTool
*blend_tool);
+
+static void gimp_blend_tool_editor_color_entry_color_clicked (GimpColorButton
*button,
+ GimpBlendTool
*blend_tool);
+static void gimp_blend_tool_editor_color_entry_color_changed (GimpColorButton
*button,
+ GimpBlendTool
*blend_tool);
+static void gimp_blend_tool_editor_color_entry_color_response (GimpColorButton
*button,
+ GimpColorDialogState
state,
+ GimpBlendTool
*blend_tool);
+
+static void gimp_blend_tool_editor_color_entry_type_changed (GtkComboBox
*combo,
+ GimpBlendTool
*blend_tool);
+
+static void gimp_blend_tool_editor_endpoint_se_value_changed (GimpSizeEntry
*se,
+ GimpBlendTool
*blend_tool);
+
+static void gimp_blend_tool_editor_stop_spinbutton_value_changed (GtkAdjustment
*adjustment,
+ GimpBlendTool
*blend_tool);
+
+static void gimp_blend_tool_editor_stop_delete_clicked (GtkWidget
*button,
+ GimpBlendTool
*blend_tool);
+
+static void gimp_blend_tool_editor_midpoint_spinbutton_value_changed (GtkAdjustment
*adjustment,
+ GimpBlendTool
*blend_tool);
+
+static void gimp_blend_tool_editor_midpoint_type_changed (GtkComboBox
*combo,
+ GimpBlendTool
*blend_tool);
+
+static void gimp_blend_tool_editor_midpoint_color_changed (GtkComboBox
*combo,
+ GimpBlendTool
*blend_tool);
+
+static void gimp_blend_tool_editor_midpoint_new_stop_clicked (GtkWidget
*button,
+ GimpBlendTool
*blend_tool);
+static void gimp_blend_tool_editor_midpoint_center_clicked (GtkWidget
*button,
+ GimpBlendTool
*blend_tool);
+
+static gboolean gimp_blend_tool_editor_flush_idle (GimpBlendTool
*blend_tool);
+
+static gboolean gimp_blend_tool_editor_is_gradient_editable (GimpBlendTool
*blend_tool);
+
+static gboolean gimp_blend_tool_editor_handle_is_endpoint (GimpBlendTool
*blend_tool,
+ gint
handle);
+static gboolean gimp_blend_tool_editor_handle_is_stop (GimpBlendTool
*blend_tool,
+ gint
handle);
+static gboolean gimp_blend_tool_editor_handle_is_midpoint (GimpBlendTool
*blend_tool,
+ gint
handle);
+static GimpGradientSegment * gimp_blend_tool_editor_handle_get_segment (GimpBlendTool
*blend_tool,
+ gint
handle);
+
+static void gimp_blend_tool_editor_block_handlers (GimpBlendTool
*blend_tool);
+static void gimp_blend_tool_editor_unblock_handlers (GimpBlendTool
*blend_tool);
+static gboolean gimp_blend_tool_editor_are_handlers_blocked (GimpBlendTool
*blend_tool);
+
+static void gimp_blend_tool_editor_freeze_gradient (GimpBlendTool
*blend_tool);
+static void gimp_blend_tool_editor_thaw_gradient (GimpBlendTool
*blend_tool);
+
+static gint gimp_blend_tool_editor_add_stop (GimpBlendTool
*blend_tool,
+ gdouble
value);
+static void gimp_blend_tool_editor_delete_stop (GimpBlendTool
*blend_tool,
+ gint
slider);
+static gint gimp_blend_tool_editor_midpoint_to_stop (GimpBlendTool
*blend_tool,
+ gint
slider);
+
+static void gimp_blend_tool_editor_update_sliders (GimpBlendTool
*blend_tool);
+
+static void gimp_blend_tool_editor_purge_gradient_history (GSList
**stack);
+static void gimp_blend_tool_editor_purge_gradient (GimpBlendTool
*blend_tool);
+
+static GtkWidget * gimp_blend_tool_editor_color_entry_new (GimpBlendTool
*blend_tool,
+ const gchar
*title,
+ Direction
direction,
+ GtkWidget
*chain_button,
+ GtkWidget
**color_panel,
+ GtkWidget
**type_combo);
+static void gimp_blend_tool_editor_init_endpoint_gui (GimpBlendTool
*blend_tool);
+static void gimp_blend_tool_editor_init_stop_gui (GimpBlendTool
*blend_tool);
+static void gimp_blend_tool_editor_init_midpoint_gui (GimpBlendTool
*blend_tool);
+static void gimp_blend_tool_editor_update_endpoint_gui (GimpBlendTool
*blend_tool,
+ gint
selection);
+static void gimp_blend_tool_editor_update_stop_gui (GimpBlendTool
*blend_tool,
+ gint
selection);
+static void gimp_blend_tool_editor_update_midpoint_gui (GimpBlendTool
*blend_tool,
+ gint
selection);
+static void gimp_blend_tool_editor_update_gui (GimpBlendTool
*blend_tool);
+
+static BlendInfo * gimp_blend_tool_editor_blend_info_new (GimpBlendTool
*blend_tool);
+static void gimp_blend_tool_editor_blend_info_free (BlendInfo
*info);
+static void gimp_blend_tool_editor_blend_info_apply (GimpBlendTool
*blend_tool,
+ const BlendInfo
*info,
+ gboolean
set_selection);
/* private functions */
@@ -287,6 +325,13 @@ gimp_blend_tool_editor_gui_response (GimpToolGui *gui,
}
static void
+gimp_blend_tool_editor_color_entry_color_clicked (GimpColorButton *button,
+ GimpBlendTool *blend_tool)
+{
+ gimp_blend_tool_editor_start_edit (blend_tool);
+}
+
+static void
gimp_blend_tool_editor_color_entry_color_changed (GimpColorButton *button,
GimpBlendTool *blend_tool)
{
@@ -312,6 +357,7 @@ gimp_blend_tool_editor_color_entry_color_changed (GimpColorButton *button,
chain_button = g_object_get_data (G_OBJECT (button),
"gimp-blend-tool-editor-chain-button");
+ gimp_blend_tool_editor_start_edit (blend_tool);
gimp_blend_tool_editor_freeze_gradient (blend_tool);
/* swap the endpoint handles, if necessary */
@@ -362,6 +408,15 @@ gimp_blend_tool_editor_color_entry_color_changed (GimpColorButton *button,
}
gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
+}
+
+static void
+gimp_blend_tool_editor_color_entry_color_response (GimpColorButton *button,
+ GimpColorDialogState state,
+ GimpBlendTool *blend_tool)
+{
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
}
static void
@@ -391,6 +446,7 @@ gimp_blend_tool_editor_color_entry_type_changed (GtkComboBox *combo,
chain_button = g_object_get_data (G_OBJECT (combo),
"gimp-blend-tool-editor-chain-button");
+ gimp_blend_tool_editor_start_edit (blend_tool);
gimp_blend_tool_editor_freeze_gradient (blend_tool);
/* swap the endpoint handles, if necessary */
@@ -437,6 +493,7 @@ gimp_blend_tool_editor_color_entry_type_changed (GtkComboBox *combo,
}
gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
}
static void
@@ -456,6 +513,7 @@ gimp_blend_tool_editor_endpoint_se_value_changed (GimpSizeEntry *se,
x = gimp_size_entry_get_refval (se, 0);
y = gimp_size_entry_get_refval (se, 1);
+ gimp_blend_tool_editor_start_edit (blend_tool);
gimp_blend_tool_editor_block_handlers (blend_tool);
switch (selection)
@@ -479,6 +537,7 @@ gimp_blend_tool_editor_endpoint_se_value_changed (GimpSizeEntry *se,
}
gimp_blend_tool_editor_unblock_handlers (blend_tool);
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
}
static void
@@ -497,6 +556,7 @@ gimp_blend_tool_editor_stop_spinbutton_value_changed (GtkAdjustment *adjustment,
value = gtk_adjustment_get_value (adjustment) / 100.0;
+ gimp_blend_tool_editor_start_edit (blend_tool);
gimp_blend_tool_editor_freeze_gradient (blend_tool);
seg = gimp_blend_tool_editor_handle_get_segment (blend_tool, selection);
@@ -509,6 +569,7 @@ gimp_blend_tool_editor_stop_spinbutton_value_changed (GtkAdjustment *adjustment,
value, seg->next->right);
gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
}
static void
@@ -539,6 +600,7 @@ gimp_blend_tool_editor_midpoint_spinbutton_value_changed (GtkAdjustment *adjustm
value = gtk_adjustment_get_value (adjustment) / 100.0;
+ gimp_blend_tool_editor_start_edit (blend_tool);
gimp_blend_tool_editor_freeze_gradient (blend_tool);
seg = gimp_blend_tool_editor_handle_get_segment (blend_tool, selection);
@@ -546,6 +608,7 @@ gimp_blend_tool_editor_midpoint_spinbutton_value_changed (GtkAdjustment *adjustm
seg->middle = value;
gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
}
static void
@@ -565,6 +628,7 @@ gimp_blend_tool_editor_midpoint_type_changed (GtkComboBox *combo,
if (! gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (combo), &type))
return;
+ gimp_blend_tool_editor_start_edit (blend_tool);
gimp_blend_tool_editor_freeze_gradient (blend_tool);
seg = gimp_blend_tool_editor_handle_get_segment (blend_tool, selection);
@@ -572,6 +636,7 @@ gimp_blend_tool_editor_midpoint_type_changed (GtkComboBox *combo,
seg->type = type;
gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
}
static void
@@ -591,6 +656,7 @@ gimp_blend_tool_editor_midpoint_color_changed (GtkComboBox *combo,
if (! gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (combo), &color))
return;
+ gimp_blend_tool_editor_start_edit (blend_tool);
gimp_blend_tool_editor_freeze_gradient (blend_tool);
seg = gimp_blend_tool_editor_handle_get_segment (blend_tool, selection);
@@ -598,6 +664,7 @@ gimp_blend_tool_editor_midpoint_color_changed (GtkComboBox *combo,
seg->color = color;
gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
}
static void
@@ -625,6 +692,7 @@ gimp_blend_tool_editor_midpoint_center_clicked (GtkWidget *button,
selection =
gimp_tool_line_get_selection (GIMP_TOOL_LINE (blend_tool->widget));
+ gimp_blend_tool_editor_start_edit (blend_tool);
gimp_blend_tool_editor_freeze_gradient (blend_tool);
seg = gimp_blend_tool_editor_handle_get_segment (blend_tool, selection);
@@ -632,6 +700,19 @@ gimp_blend_tool_editor_midpoint_center_clicked (GtkWidget *button,
gimp_gradient_segment_range_recenter_handles (blend_tool->gradient, seg, seg);
gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
+}
+
+static gboolean
+gimp_blend_tool_editor_flush_idle (GimpBlendTool *blend_tool)
+{
+ GimpDisplay *display = GIMP_TOOL (blend_tool)->display;
+
+ gimp_image_flush (gimp_display_get_image (display));
+
+ blend_tool->flush_idle_id = 0;
+
+ return G_SOURCE_REMOVE;
}
static gboolean
@@ -729,6 +810,7 @@ gimp_blend_tool_editor_freeze_gradient (GimpBlendTool *blend_tool)
{
GimpBlendOptions *options = GIMP_BLEND_TOOL_GET_OPTIONS (blend_tool);
GimpGradient *custom;
+ BlendInfo *info;
gimp_blend_tool_editor_block_handlers (blend_tool);
@@ -754,6 +836,17 @@ gimp_blend_tool_editor_freeze_gradient (GimpBlendTool *blend_tool)
g_assert (blend_tool->gradient == custom);
g_assert (gimp_blend_tool_editor_is_gradient_editable (blend_tool));
}
+
+ if (blend_tool->edit_count > 0)
+ {
+ info = blend_tool->undo_stack->data;
+
+ if (! info->gradient)
+ {
+ info->gradient =
+ GIMP_GRADIENT (gimp_data_duplicate (GIMP_DATA (blend_tool->gradient)));
+ }
+ }
}
static void
@@ -774,7 +867,9 @@ gimp_blend_tool_editor_add_stop (GimpBlendTool *blend_tool,
GimpBlendOptions *options = GIMP_BLEND_TOOL_GET_OPTIONS (blend_tool);
GimpGradientSegment *seg;
gint stop;
+ BlendInfo *info;
+ gimp_blend_tool_editor_start_edit (blend_tool);
gimp_blend_tool_editor_freeze_gradient (blend_tool);
gimp_gradient_split_at (blend_tool->gradient,
@@ -785,7 +880,11 @@ gimp_blend_tool_editor_add_stop (GimpBlendTool *blend_tool,
blend_tool->gradient->segments,
seg) - 1;
+ info = blend_tool->undo_stack->data;
+ info->added_handle = stop;
+
gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
return stop;
}
@@ -795,7 +894,9 @@ gimp_blend_tool_editor_delete_stop (GimpBlendTool *blend_tool,
gint slider)
{
GimpGradientSegment *seg;
+ BlendInfo *info;
+ gimp_blend_tool_editor_start_edit (blend_tool);
gimp_blend_tool_editor_freeze_gradient (blend_tool);
seg = gimp_blend_tool_editor_handle_get_segment (blend_tool, slider);
@@ -803,7 +904,15 @@ gimp_blend_tool_editor_delete_stop (GimpBlendTool *blend_tool,
gimp_gradient_segment_range_merge (blend_tool->gradient,
seg, seg->next, NULL, NULL);
+ info = blend_tool->undo_stack->data;
+
+ if (info->added_handle == slider)
+ info->added_handle = GIMP_TOOL_LINE_HANDLE_NONE;
+ else
+ info->removed_handle = slider;
+
gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
}
static gint
@@ -818,8 +927,16 @@ gimp_blend_tool_editor_midpoint_to_stop (GimpBlendTool *blend_tool,
if (sliders[slider].value > sliders[slider].min + EPSILON &&
sliders[slider].value < sliders[slider].max - EPSILON)
{
- slider = gimp_blend_tool_editor_add_stop (blend_tool,
- sliders[slider].value);
+ gint stop;
+ BlendInfo *info;
+
+ stop = gimp_blend_tool_editor_add_stop (blend_tool,
+ sliders[slider].value);
+
+ info = blend_tool->undo_stack->data;
+ info->removed_handle = slider;
+
+ slider = stop;
}
return slider;
@@ -933,6 +1050,44 @@ gimp_blend_tool_editor_update_sliders (GimpBlendTool *blend_tool)
g_free (sliders);
}
+static void
+gimp_blend_tool_editor_purge_gradient_history (GSList **stack)
+{
+ GSList *link;
+
+ /* eliminate all history steps that modify the gradient */
+ while ((link = *stack))
+ {
+ BlendInfo *info = link->data;
+
+ if (info->gradient)
+ {
+ gimp_blend_tool_editor_blend_info_free (info);
+
+ *stack = g_slist_delete_link (*stack, link);
+ }
+ else
+ {
+ stack = &link->next;
+ }
+ }
+}
+
+static void
+gimp_blend_tool_editor_purge_gradient (GimpBlendTool *blend_tool)
+{
+ if (blend_tool->widget)
+ {
+ gimp_blend_tool_editor_update_sliders (blend_tool);
+
+ gimp_tool_line_set_selection (GIMP_TOOL_LINE (blend_tool->widget),
+ GIMP_TOOL_LINE_HANDLE_NONE);
+ }
+
+ gimp_blend_tool_editor_purge_gradient_history (&blend_tool->undo_stack);
+ gimp_blend_tool_editor_purge_gradient_history (&blend_tool->redo_stack);
+}
+
static GtkWidget *
gimp_blend_tool_editor_color_entry_new (GimpBlendTool *blend_tool,
const gchar *title,
@@ -965,9 +1120,15 @@ gimp_blend_tool_editor_color_entry_new (GimpBlendTool *blend_tool,
"gimp-blend-tool-editor-chain-button",
chain_button);
+ g_signal_connect (button, "clicked",
+ G_CALLBACK (gimp_blend_tool_editor_color_entry_color_clicked),
+ blend_tool);
g_signal_connect (button, "color-changed",
G_CALLBACK (gimp_blend_tool_editor_color_entry_color_changed),
blend_tool);
+ g_signal_connect (button, "response",
+ G_CALLBACK (gimp_blend_tool_editor_color_entry_color_response),
+ blend_tool);
/* the color type combo */
*type_combo = combo = gimp_enum_combo_box_new (GIMP_TYPE_GRADIENT_COLOR);
@@ -1644,6 +1805,187 @@ gimp_blend_tool_editor_update_gui (GimpBlendTool *blend_tool)
gimp_tool_gui_hide (blend_tool->gui);
}
+static BlendInfo *
+gimp_blend_tool_editor_blend_info_new (GimpBlendTool *blend_tool)
+{
+ BlendInfo *info = g_slice_new (BlendInfo);
+
+ info->start_x = blend_tool->start_x;
+ info->start_y = blend_tool->start_y;
+ info->end_x = blend_tool->end_x;
+ info->end_y = blend_tool->end_y;
+
+ info->gradient = NULL;
+
+ info->added_handle = GIMP_TOOL_LINE_HANDLE_NONE;
+ info->removed_handle = GIMP_TOOL_LINE_HANDLE_NONE;
+ info->selected_handle = GIMP_TOOL_LINE_HANDLE_NONE;
+
+ return info;
+}
+
+static void
+gimp_blend_tool_editor_blend_info_free (BlendInfo *info)
+{
+ if (info->gradient)
+ g_object_unref (info->gradient);
+
+ g_slice_free (BlendInfo, info);
+}
+
+static void
+gimp_blend_tool_editor_blend_info_apply (GimpBlendTool *blend_tool,
+ const BlendInfo *info,
+ gboolean set_selection)
+{
+ gint selection;
+
+ g_assert (blend_tool->widget != NULL);
+ g_assert (blend_tool->gradient != NULL);
+
+ /* pick the handle to select */
+ if (info->gradient)
+ {
+ if (info->removed_handle != GIMP_TOOL_LINE_HANDLE_NONE)
+ {
+ /* we're undoing a stop-deletion or midpoint-to-stop operation;
+ * select the removed handle
+ */
+ selection = info->removed_handle;
+ }
+ else if (info->added_handle != GIMP_TOOL_LINE_HANDLE_NONE)
+ {
+ /* we're undoing a stop addition operation */
+ g_assert (gimp_blend_tool_editor_handle_is_stop (blend_tool,
+ info->added_handle));
+
+ selection =
+ gimp_tool_line_get_selection (GIMP_TOOL_LINE (blend_tool->widget));
+
+ /* if the selected handle is a stop... */
+ if (gimp_blend_tool_editor_handle_is_stop (blend_tool, selection))
+ {
+ /* if the added handle is selected, clear the selection */
+ if (selection == info->added_handle)
+ selection = GIMP_TOOL_LINE_HANDLE_NONE;
+ /* otherwise, keep the currently selected stop, possibly
+ * adjusting its handle index
+ */
+ else if (selection > info->added_handle)
+ selection--;
+ }
+ /* otherwise, if the selected handle is a midpoint... */
+ else if (gimp_blend_tool_editor_handle_is_midpoint (blend_tool, selection))
+ {
+ const GimpControllerSlider *sliders;
+ gint seg_i;
+
+ sliders =
+ gimp_tool_line_get_sliders (GIMP_TOOL_LINE (blend_tool->widget),
+ NULL);
+
+ seg_i = GPOINTER_TO_INT (sliders[selection].data);
+
+ /* if the midpoint belongs to one of the two segments incident to
+ * the added stop, clear the selection
+ */
+ if (seg_i == info->added_handle ||
+ seg_i == info->added_handle + 1)
+ {
+ selection = GIMP_TOOL_LINE_HANDLE_NONE;
+ }
+ /* otherwise, keep the currently selected stop, adjusting its
+ * handle index
+ */
+ else
+ {
+ /* midpoint handles follow stop handles; since we removed a
+ * stop, we must decrement the handle index
+ */
+ selection--;
+
+ if (seg_i > info->added_handle)
+ selection--;
+ }
+ }
+ /* otherwise, don't change the selection */
+ else
+ {
+ set_selection = FALSE;
+ }
+ }
+ else if (info->selected_handle != GIMP_TOOL_LINE_HANDLE_NONE)
+ {
+ /* we're undoing a property change operation; select the handle
+ * corresponding to the affected object
+ */
+ selection = info->selected_handle;
+ }
+ else
+ {
+ /* we're undoing an operation in which the same handle was added and
+ * then removed; don't change the selection
+ */
+ set_selection = FALSE;
+ }
+ }
+ else if ((info->start_x != blend_tool->start_x ||
+ info->start_y != blend_tool->start_y) &&
+ (info->end_x == blend_tool->end_x &&
+ info->end_y == blend_tool->end_y))
+ {
+ /* we're undoing a start-endpoint move operation; select the start
+ * endpoint
+ */
+ selection = GIMP_TOOL_LINE_HANDLE_START;
+ }
+ else if ((info->end_x != blend_tool->end_x ||
+ info->end_y != blend_tool->end_y) &&
+ (info->start_x == blend_tool->start_x &&
+ info->start_y == blend_tool->start_y))
+
+ {
+ /* we're undoing am end-endpoint move operation; select the end
+ * endpoint
+ */
+ selection = GIMP_TOOL_LINE_HANDLE_END;
+ }
+ else
+ {
+ /* we're undoing a line move operation; don't change the selection */
+ set_selection = FALSE;
+ }
+
+ gimp_blend_tool_editor_block_handlers (blend_tool);
+
+ g_object_set (blend_tool->widget,
+ "x1", info->start_x,
+ "y1", info->start_y,
+ "x2", info->end_x,
+ "y2", info->end_y,
+ NULL);
+
+ if (info->gradient)
+ {
+ gimp_blend_tool_editor_freeze_gradient (blend_tool);
+
+ gimp_data_copy (GIMP_DATA (blend_tool->gradient),
+ GIMP_DATA (info->gradient));
+
+ gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ }
+
+ if (set_selection)
+ {
+ gimp_tool_line_set_selection (GIMP_TOOL_LINE (blend_tool->widget),
+ selection);
+ }
+
+ gimp_blend_tool_editor_update_gui (blend_tool);
+
+ gimp_blend_tool_editor_unblock_handlers (blend_tool);
+}
+
/* public functions */
@@ -1715,6 +2057,28 @@ void
gimp_blend_tool_editor_halt (GimpBlendTool *blend_tool)
{
g_clear_object (&blend_tool->gui);
+
+ blend_tool->edit_count = 0;
+
+ if (blend_tool->undo_stack)
+ {
+ g_slist_free_full (blend_tool->undo_stack,
+ (GDestroyNotify) gimp_blend_tool_editor_blend_info_free);
+ blend_tool->undo_stack = NULL;
+ }
+
+ if (blend_tool->redo_stack)
+ {
+ g_slist_free_full (blend_tool->redo_stack,
+ (GDestroyNotify) gimp_blend_tool_editor_blend_info_free);
+ blend_tool->redo_stack = NULL;
+ }
+
+ if (blend_tool->flush_idle_id)
+ {
+ g_source_remove (blend_tool->flush_idle_id);
+ blend_tool->flush_idle_id = 0;
+ }
}
void
@@ -1763,6 +2127,7 @@ gimp_blend_tool_editor_line_changed (GimpBlendTool *blend_tool)
{
if (! changed)
{
+ gimp_blend_tool_editor_start_edit (blend_tool);
gimp_blend_tool_editor_freeze_gradient (blend_tool);
/* refetch the segment, since the gradient might have changed */
@@ -1795,6 +2160,7 @@ gimp_blend_tool_editor_line_changed (GimpBlendTool *blend_tool)
{
if (! changed)
{
+ gimp_blend_tool_editor_start_edit (blend_tool);
gimp_blend_tool_editor_freeze_gradient (blend_tool);
/* refetch the segment, since the gradient might have changed */
@@ -1813,7 +2179,10 @@ gimp_blend_tool_editor_line_changed (GimpBlendTool *blend_tool)
}
if (changed)
- gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ {
+ gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
+ }
gimp_blend_tool_editor_update_gui (blend_tool);
}
@@ -1824,13 +2193,7 @@ gimp_blend_tool_editor_gradient_dirty (GimpBlendTool *blend_tool)
if (gimp_blend_tool_editor_are_handlers_blocked (blend_tool))
return;
- if (blend_tool->widget)
- {
- gimp_blend_tool_editor_update_sliders (blend_tool);
-
- gimp_tool_line_set_selection (GIMP_TOOL_LINE (blend_tool->widget),
- GIMP_TOOL_LINE_HANDLE_NONE);
- }
+ gimp_blend_tool_editor_purge_gradient (blend_tool);
}
void
@@ -1856,11 +2219,160 @@ gimp_blend_tool_editor_gradient_changed (GimpBlendTool *blend_tool)
if (gimp_blend_tool_editor_are_handlers_blocked (blend_tool))
return;
- if (blend_tool->widget)
+ gimp_blend_tool_editor_purge_gradient (blend_tool);
+}
+
+const gchar *
+gimp_blend_tool_editor_can_undo (GimpBlendTool *blend_tool)
+{
+ if (! blend_tool->undo_stack || blend_tool->edit_count > 0)
+ return NULL;
+
+ return _("Blend Step");
+}
+
+const gchar *
+gimp_blend_tool_editor_can_redo (GimpBlendTool *blend_tool)
+{
+ if (! blend_tool->redo_stack || blend_tool->edit_count > 0)
+ return NULL;
+
+ return _("Blend Step");
+}
+
+gboolean
+gimp_blend_tool_editor_undo (GimpBlendTool *blend_tool)
+{
+ GimpTool *tool = GIMP_TOOL (blend_tool);
+ BlendInfo *info;
+ BlendInfo *new_info;
+
+ g_assert (blend_tool->undo_stack != NULL);
+ g_assert (blend_tool->edit_count == 0);
+
+ info = blend_tool->undo_stack->data;
+
+ new_info = gimp_blend_tool_editor_blend_info_new (blend_tool);
+
+ if (info->gradient)
{
- gimp_blend_tool_editor_update_sliders (blend_tool);
+ new_info->gradient =
+ GIMP_GRADIENT (gimp_data_duplicate (GIMP_DATA (blend_tool->gradient)));
- gimp_tool_line_set_selection (GIMP_TOOL_LINE (blend_tool->widget),
- GIMP_TOOL_LINE_HANDLE_NONE);
+ /* swap the added and removed handles, so that blend_info_apply() does
+ * the right thing on redo
+ */
+ new_info->added_handle = info->removed_handle;
+ new_info->removed_handle = info->added_handle;
+ new_info->selected_handle = info->selected_handle;
+ }
+
+ blend_tool->undo_stack = g_slist_remove (blend_tool->undo_stack, info);
+ blend_tool->redo_stack = g_slist_prepend (blend_tool->redo_stack, new_info);
+
+ gimp_blend_tool_editor_blend_info_apply (blend_tool, info, TRUE);
+ gimp_blend_tool_editor_blend_info_free (info);
+
+ /* the initial state of the blend tool is not useful; we might as well halt */
+ if (! blend_tool->undo_stack)
+ gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
+
+ return TRUE;
+}
+
+gboolean
+gimp_blend_tool_editor_redo (GimpBlendTool *blend_tool)
+{
+ BlendInfo *info;
+ BlendInfo *new_info;
+
+ g_assert (blend_tool->redo_stack != NULL);
+ g_assert (blend_tool->edit_count == 0);
+
+ info = blend_tool->redo_stack->data;
+
+ new_info = gimp_blend_tool_editor_blend_info_new (blend_tool);
+
+ if (info->gradient)
+ {
+ new_info->gradient =
+ GIMP_GRADIENT (gimp_data_duplicate (GIMP_DATA (blend_tool->gradient)));
+
+ /* swap the added and removed handles, so that blend_info_apply() does
+ * the right thing on undo
+ */
+ new_info->added_handle = info->removed_handle;
+ new_info->removed_handle = info->added_handle;
+ new_info->selected_handle = info->selected_handle;
+ }
+
+ blend_tool->redo_stack = g_slist_remove (blend_tool->redo_stack, info);
+ blend_tool->undo_stack = g_slist_prepend (blend_tool->undo_stack, new_info);
+
+ gimp_blend_tool_editor_blend_info_apply (blend_tool, info, TRUE);
+ gimp_blend_tool_editor_blend_info_free (info);
+
+ return TRUE;
+}
+
+void
+gimp_blend_tool_editor_start_edit (GimpBlendTool *blend_tool)
+{
+ if (blend_tool->edit_count++ == 0)
+ {
+ BlendInfo *info;
+
+ info = gimp_blend_tool_editor_blend_info_new (blend_tool);
+
+ blend_tool->undo_stack = g_slist_prepend (blend_tool->undo_stack, info);
+ }
+}
+
+void
+gimp_blend_tool_editor_end_edit (GimpBlendTool *blend_tool,
+ gboolean cancel)
+{
+ /* can happen when halting using esc */
+ if (blend_tool->edit_count == 0)
+ return;
+
+ if (--blend_tool->edit_count == 0)
+ {
+ BlendInfo *info = blend_tool->undo_stack->data;
+
+ info->selected_handle =
+ gimp_tool_line_get_selection (GIMP_TOOL_LINE (blend_tool->widget));
+
+ if (cancel ||
+ (info->start_x == blend_tool->start_x &&
+ info->start_y == blend_tool->start_y &&
+ info->end_x == blend_tool->end_x &&
+ info->end_y == blend_tool->end_y &&
+ ! info->gradient))
+ {
+ /* if the edit is canceled, or if nothing changed, undo the last
+ * step
+ */
+ gimp_blend_tool_editor_blend_info_apply (blend_tool, info, FALSE);
+
+ blend_tool->undo_stack = g_slist_remove (blend_tool->undo_stack,
+ info);
+ gimp_blend_tool_editor_blend_info_free (info);
+ }
+ else
+ {
+ /* otherwise, blow the redo stack */
+ g_slist_free_full (blend_tool->redo_stack,
+ (GDestroyNotify) gimp_blend_tool_editor_blend_info_free);
+ blend_tool->redo_stack = NULL;
+ }
+
+ /* update the undo actions / menu items */
+ if (! blend_tool->flush_idle_id)
+ {
+ blend_tool->flush_idle_id =
+ g_idle_add ((GSourceFunc) gimp_blend_tool_editor_flush_idle,
+ blend_tool);
+ }
}
}
diff --git a/app/tools/gimpblendtool-editor.h b/app/tools/gimpblendtool-editor.h
index fc7bcf2..c72fa47 100644
--- a/app/tools/gimpblendtool-editor.h
+++ b/app/tools/gimpblendtool-editor.h
@@ -19,18 +19,28 @@
#define __GIMP_BLEND_TOOL_EDITOR_H__
-void gimp_blend_tool_editor_options_notify (GimpBlendTool *blend_tool,
- GimpToolOptions *options,
- const GParamSpec *pspec);
+void gimp_blend_tool_editor_options_notify (GimpBlendTool *blend_tool,
+ GimpToolOptions *options,
+ const GParamSpec *pspec);
-void gimp_blend_tool_editor_start (GimpBlendTool *blend_tool);
-void gimp_blend_tool_editor_halt (GimpBlendTool *blend_tool);
+void gimp_blend_tool_editor_start (GimpBlendTool *blend_tool);
+void gimp_blend_tool_editor_halt (GimpBlendTool *blend_tool);
-void gimp_blend_tool_editor_line_changed (GimpBlendTool *blend_tool);
+void gimp_blend_tool_editor_line_changed (GimpBlendTool *blend_tool);
-void gimp_blend_tool_editor_gradient_dirty (GimpBlendTool *blend_tool);
+void gimp_blend_tool_editor_gradient_dirty (GimpBlendTool *blend_tool);
-void gimp_blend_tool_editor_gradient_changed (GimpBlendTool *blend_tool);
+void gimp_blend_tool_editor_gradient_changed (GimpBlendTool *blend_tool);
+
+const gchar * gimp_blend_tool_editor_can_undo (GimpBlendTool *blend_tool);
+const gchar * gimp_blend_tool_editor_can_redo (GimpBlendTool *blend_tool);
+
+gboolean gimp_blend_tool_editor_undo (GimpBlendTool *blend_tool);
+gboolean gimp_blend_tool_editor_redo (GimpBlendTool *blend_tool);
+
+void gimp_blend_tool_editor_start_edit (GimpBlendTool *blend_tool);
+void gimp_blend_tool_editor_end_edit (GimpBlendTool *blend_tool,
+ gboolean cancel);
#endif /* __GIMP_BLEND_TOOL_EDITOR_H__ */
diff --git a/app/tools/gimpblendtool.c b/app/tools/gimpblendtool.c
index 3d83241..9feea2d 100644
--- a/app/tools/gimpblendtool.c
+++ b/app/tools/gimpblendtool.c
@@ -53,17 +53,6 @@
#include "gimp-intl.h"
-typedef struct _BlendInfo BlendInfo;
-
-struct _BlendInfo
-{
- gdouble start_x;
- gdouble start_y;
- gdouble end_x;
- gdouble end_y;
-};
-
-
/* local function prototypes */
static void gimp_blend_tool_dispose (GObject *object);
@@ -91,6 +80,9 @@ static void gimp_blend_tool_motion (GimpTool *tool,
guint32 time,
GdkModifierType state,
GimpDisplay *display);
+static gboolean gimp_blend_tool_key_press (GimpTool *tool,
+ GdkEventKey *kevent,
+ GimpDisplay *display);
static void gimp_blend_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
@@ -140,12 +132,6 @@ static void gimp_blend_tool_create_filter (GimpBlendTool *blend_
static void gimp_blend_tool_filter_flush (GimpDrawableFilter *filter,
GimpTool *tool);
-static BlendInfo * blend_info_new (gdouble start_x,
- gdouble start_y,
- gdouble end_x,
- gdouble end_y);
-static void blend_info_free (BlendInfo *info);
-
G_DEFINE_TYPE (GimpBlendTool, gimp_blend_tool, GIMP_TYPE_DRAW_TOOL)
@@ -186,6 +172,7 @@ gimp_blend_tool_class_init (GimpBlendToolClass *klass)
tool_class->button_press = gimp_blend_tool_button_press;
tool_class->button_release = gimp_blend_tool_button_release;
tool_class->motion = gimp_blend_tool_motion;
+ tool_class->key_press = gimp_blend_tool_key_press;
tool_class->modifier_key = gimp_blend_tool_modifier_key;
tool_class->cursor_update = gimp_blend_tool_cursor_update;
tool_class->can_undo = gimp_blend_tool_can_undo;
@@ -310,11 +297,8 @@ gimp_blend_tool_button_press (GimpTool *tool,
GimpButtonPressType press_type,
GimpDisplay *display)
{
- GimpBlendTool *blend_tool = GIMP_BLEND_TOOL (tool);
- gdouble start_x;
- gdouble start_y;
- gdouble end_x;
- gdouble end_y;
+ GimpBlendTool *blend_tool = GIMP_BLEND_TOOL (tool);
+ GimpBlendOptions *options = GIMP_BLEND_TOOL_GET_OPTIONS (tool);
if (tool->display && display != tool->display)
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
@@ -326,21 +310,18 @@ gimp_blend_tool_button_press (GimpTool *tool,
gimp_tool_widget_hover (blend_tool->widget, coords, state, TRUE);
}
- /* save the current line for undo, widget_button_press() might change it
+ /* call start_edit() before widget_button_press(), because we need to record
+ * the undo state before widget_button_press() potentially changes it. note
+ * that if widget_button_press() return FALSE, nothing changes and no undo
+ * step is created.
*/
- start_x = blend_tool->start_x;
- start_y = blend_tool->start_y;
- end_x = blend_tool->end_x;
- end_y = blend_tool->end_y;
+ if (press_type == GIMP_BUTTON_PRESS_NORMAL)
+ gimp_blend_tool_editor_start_edit (blend_tool);
if (gimp_tool_widget_button_press (blend_tool->widget, coords, time, state,
press_type))
{
blend_tool->grab_widget = blend_tool->widget;
-
- blend_tool->undo_stack =
- g_list_prepend (blend_tool->undo_stack,
- blend_info_new (start_x, start_y, end_x, end_y));
}
if (press_type == GIMP_BUTTON_PRESS_NORMAL)
@@ -375,32 +356,13 @@ gimp_blend_tool_button_release (GimpTool *tool,
else
gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, display);
}
- else
- {
- if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
- {
- /* simply destroy the undo step we pushed in button_press(),
- * the tool widget restored the old position by itself
- */
- blend_info_free (blend_tool->undo_stack->data);
- blend_tool->undo_stack = g_list_remove (blend_tool->undo_stack,
- blend_tool->undo_stack->data);
- }
- else
- {
- /* blow the redo stack, we had an actual undoable movement
- */
- if (blend_tool->redo_stack)
- {
- g_list_free_full (blend_tool->redo_stack,
- (GDestroyNotify) blend_info_free);
- blend_tool->redo_stack = NULL;
- }
- }
-
- /* update the undo actions / menu items */
- gimp_image_flush (gimp_display_get_image (display));
- }
+ }
+
+ if (! options->instant)
+ {
+ gimp_blend_tool_editor_end_edit (blend_tool,
+ release_type ==
+ GIMP_BUTTON_RELEASE_CANCEL);
}
}
@@ -419,6 +381,31 @@ gimp_blend_tool_motion (GimpTool *tool,
}
}
+static gboolean
+gimp_blend_tool_key_press (GimpTool *tool,
+ GdkEventKey *kevent,
+ GimpDisplay *display)
+{
+ GimpBlendTool *blend_tool = GIMP_BLEND_TOOL (tool);
+ GimpDrawTool *draw_tool = GIMP_DRAW_TOOL (tool);
+ gboolean result;
+
+ /* call start_edit() before widget_key_press(), because we need to record the
+ * undo state before widget_key_press() potentially changes it. note that if
+ * widget_key_press() return FALSE, nothing changes and no undo step is
+ * created.
+ */
+ if (display == draw_tool->display)
+ gimp_blend_tool_editor_start_edit (blend_tool);
+
+ result = GIMP_TOOL_CLASS (parent_class)->key_press (tool, kevent, display);
+
+ if (display == draw_tool->display)
+ gimp_blend_tool_editor_end_edit (blend_tool, FALSE);
+
+ return result;
+}
+
static void
gimp_blend_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
@@ -467,80 +454,28 @@ static const gchar *
gimp_blend_tool_can_undo (GimpTool *tool,
GimpDisplay *display)
{
- GimpBlendTool *blend_tool = GIMP_BLEND_TOOL (tool);
-
- if (! blend_tool->undo_stack)
- return NULL;
-
- return _("Blend Step");
+ return gimp_blend_tool_editor_can_undo (GIMP_BLEND_TOOL (tool));
}
static const gchar *
gimp_blend_tool_can_redo (GimpTool *tool,
GimpDisplay *display)
{
- GimpBlendTool *blend_tool = GIMP_BLEND_TOOL (tool);
-
- if (! blend_tool->redo_stack)
- return NULL;
-
- return _("Blend Step");
+ return gimp_blend_tool_editor_can_redo (GIMP_BLEND_TOOL (tool));
}
static gboolean
gimp_blend_tool_undo (GimpTool *tool,
GimpDisplay *display)
{
- GimpBlendTool *blend_tool = GIMP_BLEND_TOOL (tool);
- BlendInfo *info;
-
- info = blend_info_new (blend_tool->start_x,
- blend_tool->start_y,
- blend_tool->end_x,
- blend_tool->end_y);
- blend_tool->redo_stack = g_list_prepend (blend_tool->redo_stack, info);
-
- info = blend_tool->undo_stack->data;
-
- g_object_set (blend_tool->widget,
- "x1", info->start_x,
- "y1", info->start_y,
- "x2", info->end_x,
- "y2", info->end_y,
- NULL);
-
- blend_tool->undo_stack = g_list_remove (blend_tool->undo_stack, info);
- blend_info_free (info);
-
- return TRUE;
+ return gimp_blend_tool_editor_undo (GIMP_BLEND_TOOL (tool));
}
static gboolean
gimp_blend_tool_redo (GimpTool *tool,
GimpDisplay *display)
{
- GimpBlendTool *blend_tool = GIMP_BLEND_TOOL (tool);
- BlendInfo *info;
-
- info = blend_info_new (blend_tool->start_x,
- blend_tool->start_y,
- blend_tool->end_x,
- blend_tool->end_y);
- blend_tool->undo_stack = g_list_prepend (blend_tool->undo_stack, info);
-
- info = blend_tool->redo_stack->data;
-
- g_object_set (blend_tool->widget,
- "x1", info->start_x,
- "y1", info->start_y,
- "x2", info->end_x,
- "y2", info->end_y,
- NULL);
-
- blend_tool->redo_stack = g_list_remove (blend_tool->redo_stack, info);
- blend_info_free (info);
-
- return TRUE;
+ return gimp_blend_tool_editor_redo (GIMP_BLEND_TOOL (tool));
}
static void
@@ -693,20 +628,6 @@ gimp_blend_tool_halt (GimpBlendTool *blend_tool)
gimp_image_flush (gimp_display_get_image (tool->display));
}
- if (blend_tool->undo_stack)
- {
- g_list_free_full (blend_tool->undo_stack,
- (GDestroyNotify) blend_info_free);
- blend_tool->undo_stack = NULL;
- }
-
- if (blend_tool->redo_stack)
- {
- g_list_free_full (blend_tool->redo_stack,
- (GDestroyNotify) blend_info_free);
- blend_tool->redo_stack = NULL;
- }
-
if (tool->display)
gimp_tool_pop_status (tool, tool->display);
@@ -1021,25 +942,3 @@ gimp_blend_tool_filter_flush (GimpDrawableFilter *filter,
gimp_projection_flush (gimp_image_get_projection (image));
}
-
-static BlendInfo *
-blend_info_new (gdouble start_x,
- gdouble start_y,
- gdouble end_x,
- gdouble end_y)
-{
- BlendInfo *info = g_slice_new0 (BlendInfo);
-
- info->start_x = start_x;
- info->start_y = start_y;
- info->end_x = end_x;
- info->end_y = end_y;
-
- return info;
-}
-
-static void
-blend_info_free (BlendInfo *info)
-{
- g_slice_free (BlendInfo, info);
-}
diff --git a/app/tools/gimpblendtool.h b/app/tools/gimpblendtool.h
index 7bc3464..4494284 100644
--- a/app/tools/gimpblendtool.h
+++ b/app/tools/gimpblendtool.h
@@ -46,9 +46,6 @@ struct _GimpBlendTool
gdouble end_x; /* ending x coord */
gdouble end_y; /* ending y coord */
- GList *undo_stack;
- GList *redo_stack;
-
GimpToolWidget *widget;
GimpToolWidget *grab_widget;
@@ -66,6 +63,12 @@ struct _GimpBlendTool
gint block_handlers_count;
+ gint edit_count;
+ GSList *undo_stack;
+ GSList *redo_stack;
+
+ guint flush_idle_id;
+
GimpToolGui *gui;
GtkWidget *endpoint_editor;
GtkWidget *endpoint_se;
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