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gimp/app/widgets/gimpstrokeeditor.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995-1999 Spencer Kimball and Peter Mattis
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpdashpattern.h"
#include "core/gimpstrokeoptions.h"
#include "gimpcellrendererdashes.h"
#include "gimpdasheditor.h"
#include "gimpstrokeeditor.h"
#include "gimp-intl.h"
enum
{
PROP_0,
PROP_OPTIONS,
PROP_RESOLUTION
};
static void gimp_stroke_editor_constructed (GObject *object);
static void gimp_stroke_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_stroke_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static gboolean gimp_stroke_editor_draw_button (GtkWidget *widget,
cairo_t *cr,
gpointer data);
static void gimp_stroke_editor_dash_preset (GtkWidget *widget,
GimpStrokeOptions *options);
static void gimp_stroke_editor_combo_fill (GimpStrokeOptions *options,
GtkComboBox *box);
G_DEFINE_TYPE (GimpStrokeEditor, gimp_stroke_editor, GIMP_TYPE_FILL_EDITOR)
#define parent_class gimp_stroke_editor_parent_class
static void
gimp_stroke_editor_class_init (GimpStrokeEditorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = gimp_stroke_editor_constructed;
object_class->set_property = gimp_stroke_editor_set_property;
object_class->get_property = gimp_stroke_editor_get_property;
g_object_class_install_property (object_class, PROP_OPTIONS,
g_param_spec_object ("options", NULL, NULL,
GIMP_TYPE_STROKE_OPTIONS,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
g_object_class_install_property (object_class, PROP_RESOLUTION,
g_param_spec_double ("resolution", NULL, NULL,
GIMP_MIN_RESOLUTION,
GIMP_MAX_RESOLUTION,
72.0,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
}
static void
gimp_stroke_editor_init (GimpStrokeEditor *editor)
{
}
static void
gimp_stroke_editor_constructed (GObject *object)
{
GimpFillEditor *fill_editor = GIMP_FILL_EDITOR (object);
GimpStrokeEditor *editor = GIMP_STROKE_EDITOR (object);
GimpStrokeOptions *options;
GimpEnumStore *store;
GEnumClass *enum_class;
GEnumValue *value;
GtkWidget *box;
GtkWidget *size;
GtkWidget *label;
GtkWidget *frame;
GtkWidget *grid;
GtkWidget *expander;
GtkWidget *dash_editor;
GtkWidget *button;
GtkCellRenderer *cell;
gint row = 0;
G_OBJECT_CLASS (parent_class)->constructed (object);
gimp_assert (GIMP_IS_STROKE_OPTIONS (fill_editor->options));
options = GIMP_STROKE_OPTIONS (fill_editor->options);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (editor), box, FALSE, FALSE, 0);
gtk_widget_show (box);
label = gtk_label_new (_("Line width:"));
gtk_box_pack_start (GTK_BOX (box), label, FALSE, FALSE, 0);
gtk_widget_show (label);
size = gimp_prop_size_entry_new (G_OBJECT (options),
"width", FALSE, "unit",
"%a", GIMP_SIZE_ENTRY_UPDATE_SIZE,
editor->resolution);
gimp_size_entry_set_pixel_digits (GIMP_SIZE_ENTRY (size), 1);
gtk_box_pack_start (GTK_BOX (box), size, FALSE, FALSE, 0);
expander = gtk_expander_new_with_mnemonic (_("_Line Style"));
gtk_box_pack_start (GTK_BOX (editor), expander, FALSE, FALSE, 0);
gtk_widget_show (expander);
frame = gimp_frame_new ("<expander>");
gtk_container_add (GTK_CONTAINER (expander), frame);
gtk_widget_show (frame);
grid = gtk_grid_new ();
gtk_grid_set_column_spacing (GTK_GRID (grid), 6);
gtk_grid_set_row_spacing (GTK_GRID (grid), 3);
gtk_container_add (GTK_CONTAINER (frame), grid);
gtk_widget_show (grid);
box = gimp_prop_enum_icon_box_new (G_OBJECT (options), "cap-style",
"gimp-cap", 0, 0);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, row++,
_("_Cap style:"), 0.0, 0.5,
box, 2);
box = gimp_prop_enum_icon_box_new (G_OBJECT (options), "join-style",
"gimp-join", 0, 0);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, row++,
_("_Join style:"), 0.0, 0.5,
box, 2);
gimp_prop_scale_entry_new (G_OBJECT (options), "miter-limit",
GTK_GRID (grid), 0, row++,
_("_Miter limit:"),
1.0, 1.0, 1,
FALSE, 0.0, 0.0);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, row++,
_("Dash pattern:"), 0.0, 0.5,
frame, 2);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_container_add (GTK_CONTAINER (frame), box);
gtk_widget_show (box);
dash_editor = gimp_dash_editor_new (options);
button = g_object_new (GTK_TYPE_BUTTON,
"width-request", 14,
NULL);
gtk_box_pack_start (GTK_BOX (box), button, FALSE, TRUE, 0);
gtk_widget_show (button);
g_signal_connect_object (button, "clicked",
G_CALLBACK (gimp_dash_editor_shift_left),
dash_editor, G_CONNECT_SWAPPED);
g_signal_connect_after (button, "draw",
G_CALLBACK (gimp_stroke_editor_draw_button),
button);
gtk_box_pack_start (GTK_BOX (box), dash_editor, TRUE, TRUE, 0);
gtk_widget_show (dash_editor);
button = g_object_new (GTK_TYPE_BUTTON,
"width-request", 14,
NULL);
gtk_box_pack_start (GTK_BOX (box), button, FALSE, TRUE, 0);
gtk_widget_show (button);
g_signal_connect_object (button, "clicked",
G_CALLBACK (gimp_dash_editor_shift_right),
dash_editor, G_CONNECT_SWAPPED);
g_signal_connect_after (button, "draw",
G_CALLBACK (gimp_stroke_editor_draw_button),
NULL);
store = g_object_new (GIMP_TYPE_ENUM_STORE,
"enum-type", GIMP_TYPE_DASH_PRESET,
"user-data-type", GIMP_TYPE_DASH_PATTERN,
NULL);
enum_class = g_type_class_ref (GIMP_TYPE_DASH_PRESET);
for (value = enum_class->values; value->value_name; value++)
{
GtkTreeIter iter = { 0, };
const gchar *desc;
desc = gimp_enum_value_get_desc (enum_class, value);
gtk_list_store_append (GTK_LIST_STORE (store), &iter);
gtk_list_store_set (GTK_LIST_STORE (store), &iter,
GIMP_INT_STORE_VALUE, value->value,
GIMP_INT_STORE_LABEL, desc,
-1);
}
g_type_class_unref (enum_class);
box = gimp_enum_combo_box_new_with_model (store);
g_object_unref (store);
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (box), GIMP_DASH_CUSTOM);
gimp_grid_attach_aligned (GTK_GRID (grid), 0, row++,
_("Dash _preset:"), 0.0, 0.5,
box, 2);
cell = g_object_new (GIMP_TYPE_CELL_RENDERER_DASHES,
"xpad", 2,
NULL);
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (box), cell, FALSE);
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (box), cell,
"pattern", GIMP_INT_STORE_USER_DATA);
gimp_stroke_editor_combo_fill (options, GTK_COMBO_BOX (box));
g_signal_connect (box, "changed",
G_CALLBACK (gimp_stroke_editor_dash_preset),
options);
g_signal_connect_object (options, "dash-info-changed",
G_CALLBACK (gimp_int_combo_box_set_active),
box, G_CONNECT_SWAPPED);
}
static void
gimp_stroke_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpFillEditor *fill_editor = GIMP_FILL_EDITOR (object);
GimpStrokeEditor *editor = GIMP_STROKE_EDITOR (object);
switch (property_id)
{
case PROP_OPTIONS:
if (fill_editor->options)
g_object_unref (fill_editor->options);
fill_editor->options = g_value_dup_object (value);
break;
case PROP_RESOLUTION:
editor->resolution = g_value_get_double (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_stroke_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpFillEditor *fill_editor = GIMP_FILL_EDITOR (object);
GimpStrokeEditor *editor = GIMP_STROKE_EDITOR (object);
switch (property_id)
{
case PROP_OPTIONS:
g_value_set_object (value, fill_editor->options);
break;
case PROP_RESOLUTION:
g_value_set_double (value, editor->resolution);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
GtkWidget *
gimp_stroke_editor_new (GimpStrokeOptions *options,
gdouble resolution,
gboolean edit_context)
{
g_return_val_if_fail (GIMP_IS_STROKE_OPTIONS (options), NULL);
return g_object_new (GIMP_TYPE_STROKE_EDITOR,
"options", options,
"resolution", resolution,
"edit-context", edit_context ? TRUE : FALSE,
NULL);
}
static gboolean
gimp_stroke_editor_draw_button (GtkWidget *widget,
cairo_t *cr,
gpointer data)
{
GtkStyleContext *style = gtk_widget_get_style_context (widget);
GtkAllocation allocation;
gint w;
gtk_widget_get_allocation (widget, &allocation);
w = MIN (allocation.width, allocation.height) * 2 / 3;
gtk_style_context_save (style);
gtk_style_context_set_state (style, gtk_widget_get_state_flags (widget));
gtk_render_arrow (style, cr,
data ? 3 * (G_PI / 2) : 1 * (G_PI / 2),
(allocation.width - w) / 2,
(allocation.height - w) / 2,
w);
gtk_style_context_restore (style);
return FALSE;
}
static void
gimp_stroke_editor_dash_preset (GtkWidget *widget,
GimpStrokeOptions *options)
{
gint value;
if (gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget), &value) &&
value != GIMP_DASH_CUSTOM)
{
gimp_stroke_options_take_dash_pattern (options, value, NULL);
}
}
static void
gimp_stroke_editor_combo_update (GtkTreeModel *model,
GParamSpec *pspec,
GimpStrokeOptions *options)
{
GtkTreeIter iter;
if (gimp_int_store_lookup_by_value (model, GIMP_DASH_CUSTOM, &iter))
{
gtk_list_store_set (GTK_LIST_STORE (model), &iter,
GIMP_INT_STORE_USER_DATA,
gimp_stroke_options_get_dash_info (options),
-1);
}
}
static void
gimp_stroke_editor_combo_fill (GimpStrokeOptions *options,
GtkComboBox *box)
{
GtkTreeModel *model = gtk_combo_box_get_model (box);
GtkTreeIter iter;
gboolean iter_valid;
for (iter_valid = gtk_tree_model_get_iter_first (model, &iter);
iter_valid;
iter_valid = gtk_tree_model_iter_next (model, &iter))
{
gint value;
gtk_tree_model_get (model, &iter,
GIMP_INT_STORE_VALUE, &value,
-1);
if (value == GIMP_DASH_CUSTOM)
{
gtk_list_store_set (GTK_LIST_STORE (model), &iter,
GIMP_INT_STORE_USER_DATA,
gimp_stroke_options_get_dash_info (options),
-1);
g_signal_connect_object (options, "notify::dash-info",
G_CALLBACK (gimp_stroke_editor_combo_update),
model, G_CONNECT_SWAPPED);
}
else
{
GArray *pattern = gimp_dash_pattern_new_from_preset (value);
gtk_list_store_set (GTK_LIST_STORE (model), &iter,
GIMP_INT_STORE_USER_DATA, pattern,
-1);
gimp_dash_pattern_free (pattern);
}
}
}
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