[gimp/wip/gradient-edit: 34/42] app: implement blend tool gui for gradient stops
- From: N/A <ell src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gimp/wip/gradient-edit: 34/42] app: implement blend tool gui for gradient stops
- Date: Fri, 6 Oct 2017 20:05:52 +0000 (UTC)
commit 6e27f00895ee55a121389d746ec14c9f3c8a6b28
Author: Ell <ell_se yahoo com>
Date: Thu Aug 3 09:15:43 2017 -0400
app: implement blend tool gui for gradient stops
Allows setting the stop's position, and its left and right colors
and color types. A chain button can be used to modify the two
colors (and color types) together.
The stop can be deleted through an editor button.
app/tools/gimpblendtool-editor.c | 439 +++++++++++++++++++++++++++++++-------
app/tools/gimpblendtool.h | 7 +
2 files changed, 373 insertions(+), 73 deletions(-)
---
diff --git a/app/tools/gimpblendtool-editor.c b/app/tools/gimpblendtool-editor.c
index 67a085c..2d6ebe8 100644
--- a/app/tools/gimpblendtool-editor.c
+++ b/app/tools/gimpblendtool-editor.c
@@ -63,69 +63,80 @@ typedef enum
/* 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 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_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_update_endpoint_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_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 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 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_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_gui (GimpBlendTool
*blend_tool);
/* private functions */
@@ -167,28 +178,49 @@ gimp_blend_tool_editor_line_remove_slider (GimpToolLine *line,
gint slider,
GimpBlendTool *blend_tool)
{
- GimpGradientSegment *seg;
-
- gimp_blend_tool_editor_freeze_gradient (blend_tool);
-
- seg = gimp_blend_tool_editor_handle_get_segment (blend_tool, slider);
-
- gimp_gradient_segment_range_merge (blend_tool->gradient,
- seg, seg->next, NULL, NULL);
-
- gimp_blend_tool_editor_thaw_gradient (blend_tool);
+ gimp_blend_tool_editor_delete_stop (blend_tool, slider);
}
static void
gimp_blend_tool_editor_line_selection_changed (GimpToolLine *line,
GimpBlendTool *blend_tool)
{
+ gint selection;
+
+ selection =
+ gimp_tool_line_get_selection (GIMP_TOOL_LINE (blend_tool->widget));
+
if (blend_tool->gui)
{
/* hide all color dialogs */
gimp_color_panel_dialog_response (
GIMP_COLOR_PANEL (blend_tool->endpoint_color_panel),
GIMP_COLOR_DIALOG_OK);
+ gimp_color_panel_dialog_response (
+ GIMP_COLOR_PANEL (blend_tool->stop_left_color_panel),
+ GIMP_COLOR_DIALOG_OK);
+ gimp_color_panel_dialog_response (
+ GIMP_COLOR_PANEL (blend_tool->stop_right_color_panel),
+ GIMP_COLOR_DIALOG_OK);
+
+ /* reset the stop colors chain button */
+ if (gimp_blend_tool_editor_handle_is_stop (blend_tool, selection))
+ {
+ const GimpGradientSegment *seg;
+ gboolean homogeneous;
+
+ seg = gimp_blend_tool_editor_handle_get_segment (blend_tool,
+ selection);
+
+ homogeneous = seg->right_color.r == seg->next->left_color.r &&
+ seg->right_color.g == seg->next->left_color.g &&
+ seg->right_color.b == seg->next->left_color.b &&
+ seg->right_color.a == seg->next->left_color.a &&
+ seg->right_color_type == seg->next->left_color_type;
+
+ gimp_chain_button_set_active (
+ GIMP_CHAIN_BUTTON (blend_tool->stop_chain_button), homogeneous);
+ }
}
gimp_blend_tool_editor_update_gui (blend_tool);
@@ -438,6 +470,48 @@ gimp_blend_tool_editor_endpoint_se_value_changed (GimpSizeEntry *se,
gimp_blend_tool_editor_unblock_handlers (blend_tool);
}
+static void
+gimp_blend_tool_editor_stop_spinbutton_value_changed (GtkAdjustment *adjustment,
+ GimpBlendTool *blend_tool)
+{
+ gint selection;
+ gdouble value;
+ GimpGradientSegment *seg;
+
+ if (gimp_blend_tool_editor_are_handlers_blocked (blend_tool))
+ return;
+
+ selection =
+ gimp_tool_line_get_selection (GIMP_TOOL_LINE (blend_tool->widget));
+
+ value = gtk_adjustment_get_value (adjustment) / 100.0;
+
+ gimp_blend_tool_editor_freeze_gradient (blend_tool);
+
+ seg = gimp_blend_tool_editor_handle_get_segment (blend_tool, selection);
+
+ gimp_gradient_segment_range_compress (blend_tool->gradient,
+ seg, seg,
+ seg->left, value);
+ gimp_gradient_segment_range_compress (blend_tool->gradient,
+ seg->next, seg->next,
+ value, seg->next->right);
+
+ gimp_blend_tool_editor_thaw_gradient (blend_tool);
+}
+
+static void
+gimp_blend_tool_editor_stop_delete_clicked (GtkWidget *button,
+ GimpBlendTool *blend_tool)
+{
+ gint selection;
+
+ selection =
+ gimp_tool_line_get_selection (GIMP_TOOL_LINE (blend_tool->widget));
+
+ gimp_blend_tool_editor_delete_stop (blend_tool, selection);
+}
+
static gboolean
gimp_blend_tool_editor_is_gradient_editable (GimpBlendTool *blend_tool)
{
@@ -595,6 +669,22 @@ gimp_blend_tool_editor_add_stop (GimpBlendTool *blend_tool,
}
static void
+gimp_blend_tool_editor_delete_stop (GimpBlendTool *blend_tool,
+ gint slider)
+{
+ GimpGradientSegment *seg;
+
+ gimp_blend_tool_editor_freeze_gradient (blend_tool);
+
+ seg = gimp_blend_tool_editor_handle_get_segment (blend_tool, slider);
+
+ gimp_gradient_segment_range_merge (blend_tool->gradient,
+ seg, seg->next, NULL, NULL);
+
+ gimp_blend_tool_editor_thaw_gradient (blend_tool);
+}
+
+static void
gimp_blend_tool_editor_update_sliders (GimpBlendTool *blend_tool)
{
GimpBlendOptions *options = GIMP_BLEND_TOOL_GET_OPTIONS (blend_tool);
@@ -868,6 +958,131 @@ gimp_blend_tool_editor_init_endpoint_gui (GimpBlendTool *blend_tool)
}
static void
+gimp_blend_tool_editor_init_stop_gui (GimpBlendTool *blend_tool)
+{
+ GtkWidget *editor;
+ GtkWidget *table;
+ GtkWidget *label;
+ GtkWidget *spinbutton;
+ GtkWidget *table2;
+ GtkWidget *button;
+ GtkWidget *hbox;
+ GtkWidget *separator;
+ gint row = 0;
+
+ /* the stop editor */
+ blend_tool->stop_editor =
+ editor = gimp_editor_new ();
+ gtk_box_pack_start (GTK_BOX (gimp_tool_gui_get_vbox (blend_tool->gui)),
+ editor, FALSE, TRUE, 0);
+
+ /* the main table */
+ table = gtk_table_new (1, 2, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE (table), 4);
+ gtk_table_set_col_spacings (GTK_TABLE (table), 4);
+ gtk_box_pack_start (GTK_BOX (editor), table, FALSE, TRUE, 0);
+ gtk_widget_show (table);
+
+ /* the position label */
+ label = gtk_label_new (_("Position:"));
+ gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+ gtk_table_attach (GTK_TABLE (table), label, 0, 1, row, row + 1,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 0);
+ gtk_widget_show (label);
+
+ /* the position spin button */
+ blend_tool->stop_spinbutton =
+ spinbutton = gtk_spin_button_new_with_range (0.0, 100.0,
+ 1.0);
+ gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), 6);
+ gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
+ gtk_spin_button_set_digits (GTK_SPIN_BUTTON (spinbutton), 2);
+ gtk_table_attach (GTK_TABLE (table), spinbutton, 1, 2, row, row + 1,
+ GTK_SHRINK | GTK_FILL | GTK_EXPAND,
+ GTK_SHRINK | GTK_FILL,
+ 0, 0);
+ gtk_widget_show (spinbutton);
+
+ g_signal_connect (
+ gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (spinbutton)),
+ "value-changed",
+ G_CALLBACK (gimp_blend_tool_editor_stop_spinbutton_value_changed),
+ blend_tool);
+
+ row++;
+
+ /* the color labels */
+ label = gtk_label_new (_("Left color:"));
+ gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+ gtk_table_attach (GTK_TABLE (table), label, 0, 1, row, row + 1,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 0);
+ gtk_widget_show (label);
+
+ label = gtk_label_new (_("Right color:"));
+ gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+ gtk_table_attach (GTK_TABLE (table), label, 0, 1, row + 1, row + 2,
+ GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 0);
+ gtk_widget_show (label);
+
+ /* the color entries table */
+ table2 = gtk_table_new (1, 2, FALSE);
+ gtk_table_set_row_spacings (GTK_TABLE (table2), 4);
+ gtk_table_set_col_spacings (GTK_TABLE (table2), 2);
+ gtk_table_attach (GTK_TABLE (table), table2, 1, 2, row, row + 2,
+ GTK_SHRINK | GTK_FILL | GTK_EXPAND,
+ GTK_SHRINK | GTK_FILL,
+ 0, 0);
+ gtk_widget_show (table2);
+
+ /* the color entries chain button */
+ blend_tool->stop_chain_button =
+ button = gimp_chain_button_new (GIMP_CHAIN_RIGHT);
+ gtk_table_attach (GTK_TABLE (table2), button, 1, 2, 0, 2,
+ GTK_SHRINK | GTK_FILL,
+ GTK_SHRINK | GTK_FILL | GTK_EXPAND,
+ 0, 0);
+ gtk_widget_show (button);
+
+ /* the color entries */
+ hbox = gimp_blend_tool_editor_color_entry_new (
+ blend_tool, _("Change Stop Color"), DIRECTION_LEFT, button,
+ &blend_tool->stop_left_color_panel, &blend_tool->stop_left_type_combo);
+ gtk_table_attach (GTK_TABLE (table2), hbox, 0, 1, 0, 1,
+ GTK_SHRINK | GTK_FILL | GTK_EXPAND,
+ GTK_SHRINK | GTK_FILL,
+ 0, 0);
+ gtk_widget_show (hbox);
+
+ hbox = gimp_blend_tool_editor_color_entry_new (
+ blend_tool, _("Change Stop Color"), DIRECTION_RIGHT, button,
+ &blend_tool->stop_right_color_panel, &blend_tool->stop_right_type_combo);
+ gtk_table_attach (GTK_TABLE (table2), hbox, 0, 1, 1, 2,
+ GTK_SHRINK | GTK_FILL | GTK_EXPAND,
+ GTK_SHRINK | GTK_FILL,
+ 0, 0);
+ gtk_widget_show (hbox);
+
+ row += 2;
+
+ /* the action buttons separator */
+ separator = gtk_hseparator_new ();
+ gtk_table_attach (GTK_TABLE (table), separator, 0, 2, row, row + 1,
+ GTK_SHRINK | GTK_FILL | GTK_EXPAND,
+ GTK_SHRINK | GTK_FILL,
+ 0, 0);
+ gtk_widget_show (separator);
+
+ row++;
+
+ /* the delete button */
+ gimp_editor_add_button (GIMP_EDITOR (editor),
+ GIMP_ICON_EDIT_DELETE, _("Delete stop"),
+ NULL,
+ G_CALLBACK (gimp_blend_tool_editor_stop_delete_clicked),
+ NULL, blend_tool);
+}
+
+static void
gimp_blend_tool_editor_update_endpoint_gui (GimpBlendTool *blend_tool,
gint selection)
{
@@ -960,6 +1175,78 @@ gimp_blend_tool_editor_update_endpoint_gui (GimpBlendTool *blend_tool,
}
static void
+gimp_blend_tool_editor_update_stop_gui (GimpBlendTool *blend_tool,
+ gint selection)
+{
+ GimpBlendOptions *options = GIMP_BLEND_TOOL_GET_OPTIONS (blend_tool);
+ GimpContext *context = GIMP_CONTEXT (options);
+ gboolean editable;
+ GimpGradientSegment *seg;
+ gint index;
+ gchar *title;
+ gdouble min;
+ gdouble max;
+ gdouble value;
+ GimpRGB left_color;
+ GimpGradientColor left_color_type;
+ GimpRGB right_color;
+ GimpGradientColor right_color_type;
+
+ editable = gimp_blend_tool_editor_is_gradient_editable (blend_tool);
+
+ seg = gimp_blend_tool_editor_handle_get_segment (blend_tool, selection);
+
+ index = GPOINTER_TO_INT (
+ gimp_tool_line_get_sliders (GIMP_TOOL_LINE (blend_tool->widget),
+ NULL)[selection].data);
+
+ title = g_strdup_printf (_("Stop %d"), index + 1);
+
+ min = seg->left;
+ max = seg->next->right;
+ value = seg->right;
+
+ gimp_gradient_segment_get_right_flat_color (blend_tool->gradient, context,
+ seg, &left_color);
+ left_color_type = seg->right_color_type;
+
+ gimp_gradient_segment_get_left_flat_color (blend_tool->gradient, context,
+ seg->next, &right_color);
+ right_color_type = seg->next->left_color_type;
+
+ gimp_tool_gui_set_title (blend_tool->gui, title);
+
+ gtk_spin_button_set_range (GTK_SPIN_BUTTON (blend_tool->stop_spinbutton),
+ 100.0 * min, 100.0 * max);
+ gtk_spin_button_set_value (GTK_SPIN_BUTTON (blend_tool->stop_spinbutton),
+ 100.0 * value);
+
+ gimp_color_button_set_color (
+ GIMP_COLOR_BUTTON (blend_tool->stop_left_color_panel), &left_color);
+ gimp_int_combo_box_set_active (
+ GIMP_INT_COMBO_BOX (blend_tool->stop_left_type_combo), left_color_type);
+
+ gimp_color_button_set_color (
+ GIMP_COLOR_BUTTON (blend_tool->stop_right_color_panel), &right_color);
+ gimp_int_combo_box_set_active (
+ GIMP_INT_COMBO_BOX (blend_tool->stop_right_type_combo), right_color_type);
+
+ gtk_widget_set_sensitive (blend_tool->stop_spinbutton, editable);
+ gtk_widget_set_sensitive (blend_tool->stop_left_color_panel, editable);
+ gtk_widget_set_sensitive (blend_tool->stop_left_type_combo, editable);
+ gtk_widget_set_sensitive (blend_tool->stop_right_color_panel, editable);
+ gtk_widget_set_sensitive (blend_tool->stop_right_type_combo, editable);
+ gtk_widget_set_sensitive (blend_tool->stop_chain_button, editable);
+ gtk_widget_set_sensitive (
+ GTK_WIDGET (gimp_editor_get_button_box (GIMP_EDITOR (blend_tool->stop_editor))),
+ editable);
+
+ g_free (title);
+
+ gtk_widget_show (blend_tool->stop_editor);
+}
+
+static void
gimp_blend_tool_editor_update_gui (GimpBlendTool *blend_tool)
{
GimpBlendOptions *options = GIMP_BLEND_TOOL_GET_OPTIONS (blend_tool);
@@ -1000,6 +1287,7 @@ gimp_blend_tool_editor_update_gui (GimpBlendTool *blend_tool)
blend_tool);
gimp_blend_tool_editor_init_endpoint_gui (blend_tool);
+ gimp_blend_tool_editor_init_stop_gui (blend_tool);
}
gimp_blend_tool_editor_block_handlers (blend_tool);
@@ -1009,6 +1297,11 @@ gimp_blend_tool_editor_update_gui (GimpBlendTool *blend_tool)
else
gtk_widget_hide (blend_tool->endpoint_editor);
+ if (gimp_blend_tool_editor_handle_is_stop (blend_tool, selection))
+ gimp_blend_tool_editor_update_stop_gui (blend_tool, selection);
+ else
+ gtk_widget_hide (blend_tool->stop_editor);
+
gimp_blend_tool_editor_unblock_handlers (blend_tool);
gimp_tool_gui_show (blend_tool->gui);
diff --git a/app/tools/gimpblendtool.h b/app/tools/gimpblendtool.h
index 0eedb7d..7b6bb3d 100644
--- a/app/tools/gimpblendtool.h
+++ b/app/tools/gimpblendtool.h
@@ -71,6 +71,13 @@ struct _GimpBlendTool
GtkWidget *endpoint_se;
GtkWidget *endpoint_color_panel;
GtkWidget *endpoint_type_combo;
+ GtkWidget *stop_editor;
+ GtkWidget *stop_spinbutton;
+ GtkWidget *stop_left_color_panel;
+ GtkWidget *stop_left_type_combo;
+ GtkWidget *stop_right_color_panel;
+ GtkWidget *stop_right_type_combo;
+ GtkWidget *stop_chain_button;
};
struct _GimpBlendToolClass
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