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.
This commit is contained in:
Ell 2017-08-03 09:15:43 -04:00
parent 8d12fada8a
commit 1aa4877426
2 changed files with 316 additions and 17 deletions

View File

@ -88,14 +88,20 @@ static void gimp_blend_tool_editor_gui_response
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_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_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_endpoint_se_value_changed (GimpSizeEntry *se,
GimpBlendTool *blend_tool);
static void gimp_blend_tool_editor_stop_se_value_changed (GimpSizeEntry *se,
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);
@ -117,6 +123,8 @@ static void gimp_blend_tool_editor_thaw_gradient
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);
@ -127,8 +135,11 @@ static GtkWidget * gimp_blend_tool_editor_color_entry_new
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);
@ -205,17 +216,7 @@ 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);
gimp_blend_tool_set_tentative_gradient (blend_tool, NULL);
}
@ -223,12 +224,42 @@ 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);
@ -478,6 +509,51 @@ 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_se_value_changed (GimpSizeEntry *se,
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));
if (selection == GIMP_TOOL_LINE_HANDLE_NONE)
return;
value = gimp_size_entry_get_refval (se, 0) / 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)
{
@ -634,6 +710,22 @@ gimp_blend_tool_editor_add_stop (GimpBlendTool *blend_tool,
return stop;
}
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)
{
@ -907,6 +999,128 @@ gimp_blend_tool_editor_init_endpoint_gui (GimpBlendTool *blend_tool)
row++;
}
static void
gimp_blend_tool_editor_init_stop_gui (GimpBlendTool *blend_tool)
{
GtkWidget *editor;
GtkWidget *table;
GtkWidget *label;
GtkWidget *se;
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 size entry */
blend_tool->stop_se =
se = gimp_size_entry_new (1, GIMP_UNIT_PERCENT, "%a",
FALSE, TRUE, FALSE, 6,
GIMP_SIZE_ENTRY_UPDATE_SIZE);
gimp_size_entry_show_unit_menu (GIMP_SIZE_ENTRY (se), FALSE);
gtk_table_attach (GTK_TABLE (table), se, 1, 2, row, row + 1,
GTK_SHRINK | GTK_FILL | GTK_EXPAND,
GTK_SHRINK | GTK_FILL,
0, 0);
gtk_widget_show (se);
g_signal_connect (se, "value-changed",
G_CALLBACK (gimp_blend_tool_editor_stop_se_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)
@ -999,6 +1213,78 @@ gimp_blend_tool_editor_update_endpoint_gui (GimpBlendTool *blend_tool,
gtk_widget_show (blend_tool->endpoint_editor);
}
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);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (blend_tool->stop_se),
0, 100.0 * min, 100.0 * max);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (blend_tool->stop_se),
0, 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_se, 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)
{
@ -1040,6 +1326,7 @@ 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);
@ -1049,6 +1336,11 @@ 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);

View File

@ -72,6 +72,13 @@ struct _GimpBlendTool
GtkWidget *endpoint_se;
GtkWidget *endpoint_color_panel;
GtkWidget *endpoint_type_combo;
GtkWidget *stop_editor;
GtkWidget *stop_se;
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