mirror of https://github.com/GNOME/gimp.git
738 lines
24 KiB
C
738 lines
24 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimppatternselectbutton.c
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* Copyright (C) 1998 Andy Thomas
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "libgimpwidgets/gimpwidgets.h"
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#include "gimp.h"
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#include "gimpuitypes.h"
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#include "gimppatternselectbutton.h"
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#include "gimpuimarshal.h"
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#include "libgimp-intl.h"
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/**
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* SECTION: gimppatternselectbutton
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* @title: GimpPatternSelectButton
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* @short_description: A button which pops up a pattern select dialog.
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*
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* A button which pops up a pattern select dialog.
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**/
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#define CELL_SIZE 20
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#define GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GIMP_TYPE_PATTERN_SELECT_BUTTON, GimpPatternSelectButtonPrivate))
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typedef struct _GimpPatternSelectButtonPrivate GimpPatternSelectButtonPrivate;
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struct _GimpPatternSelectButtonPrivate
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{
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gchar *title;
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gchar *pattern_name; /* Local copy */
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gint width;
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gint height;
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gint bytes;
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guchar *mask_data; /* local copy */
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GtkWidget *inside;
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GtkWidget *preview;
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GtkWidget *popup;
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};
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enum
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{
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PATTERN_SET,
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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PROP_TITLE,
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PROP_PATTERN_NAME
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};
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/* local function prototypes */
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static void gimp_pattern_select_button_finalize (GObject *object);
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static void gimp_pattern_select_button_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gimp_pattern_select_button_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec);
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static void gimp_pattern_select_button_clicked (GimpPatternSelectButton *button);
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static void gimp_pattern_select_button_callback (const gchar *pattern_name,
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gint width,
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gint height,
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gint bytes,
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const guchar *mask_data,
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gboolean dialog_closing,
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gpointer user_data);
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static void gimp_pattern_select_preview_resize (GimpPatternSelectButton *button);
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static gboolean gimp_pattern_select_preview_events (GtkWidget *widget,
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GdkEvent *event,
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GimpPatternSelectButton *button);
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static void gimp_pattern_select_preview_update (GtkWidget *preview,
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gint width,
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gint height,
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gint bytes,
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const guchar *mask_data);
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static void gimp_pattern_select_button_open_popup (GimpPatternSelectButton *button,
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gint x,
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gint y);
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static void gimp_pattern_select_button_close_popup (GimpPatternSelectButton *button);
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static void gimp_pattern_select_drag_data_received (GimpPatternSelectButton *button,
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GdkDragContext *context,
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gint x,
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gint y,
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GtkSelectionData *selection,
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guint info,
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guint time);
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static GtkWidget * gimp_pattern_select_button_create_inside (GimpPatternSelectButton *button);
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static const GtkTargetEntry target = { "application/x-gimp-pattern-name", 0 };
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static guint pattern_button_signals[LAST_SIGNAL] = { 0 };
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G_DEFINE_TYPE (GimpPatternSelectButton, gimp_pattern_select_button,
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GIMP_TYPE_SELECT_BUTTON)
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static void
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gimp_pattern_select_button_class_init (GimpPatternSelectButtonClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GimpSelectButtonClass *select_button_class = GIMP_SELECT_BUTTON_CLASS (klass);
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object_class->finalize = gimp_pattern_select_button_finalize;
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object_class->set_property = gimp_pattern_select_button_set_property;
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object_class->get_property = gimp_pattern_select_button_get_property;
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select_button_class->select_destroy = gimp_pattern_select_destroy;
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klass->pattern_set = NULL;
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/**
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* GimpPatternSelectButton:title:
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*
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* The title to be used for the pattern selection popup dialog.
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*
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* Since: GIMP 2.4
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*/
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g_object_class_install_property (object_class, PROP_TITLE,
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g_param_spec_string ("title",
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"Title",
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"The title to be used for the pattern selection popup dialog",
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_("Pattern Selection"),
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GIMP_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY));
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/**
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* GimpPatternSelectButton:pattern-name:
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*
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* The name of the currently selected pattern.
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*
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* Since: GIMP 2.4
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*/
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g_object_class_install_property (object_class, PROP_PATTERN_NAME,
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g_param_spec_string ("pattern-name",
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"Pattern name",
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"The name of the currently selected pattern",
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NULL,
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GIMP_PARAM_READWRITE));
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/**
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* GimpPatternSelectButton::pattern-set:
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* @widget: the object which received the signal.
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* @pattern_name: the name of the currently selected pattern.
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* @width: width of the pattern
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* @height: height of the pattern
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* @bpp: bpp of the pattern
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* @mask_data: pattern mask data
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* @dialog_closing: whether the dialog was closed or not.
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*
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* The ::pattern-set signal is emitted when the user selects a pattern.
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*
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* Since: GIMP 2.4
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*/
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pattern_button_signals[PATTERN_SET] =
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g_signal_new ("pattern-set",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GimpPatternSelectButtonClass, pattern_set),
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NULL, NULL,
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_gimpui_marshal_VOID__STRING_INT_INT_INT_POINTER_BOOLEAN,
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G_TYPE_NONE, 6,
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G_TYPE_STRING,
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G_TYPE_INT,
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G_TYPE_INT,
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G_TYPE_INT,
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G_TYPE_POINTER,
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G_TYPE_BOOLEAN);
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g_type_class_add_private (object_class,
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sizeof (GimpPatternSelectButtonPrivate));
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}
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static void
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gimp_pattern_select_button_init (GimpPatternSelectButton *button)
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{
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GimpPatternSelectButtonPrivate *priv;
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gint mask_data_size;
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priv = GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE (button);
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priv->pattern_name = gimp_context_get_pattern ();
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gimp_pattern_get_pixels (priv->pattern_name,
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&priv->width,
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&priv->height,
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&priv->bytes,
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&mask_data_size,
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&priv->mask_data);
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priv->inside = gimp_pattern_select_button_create_inside (button);
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gtk_container_add (GTK_CONTAINER (button), priv->inside);
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priv->popup = NULL;
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}
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/**
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* gimp_pattern_select_button_new:
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* @title: Title of the dialog to use or %NULL to use the default title.
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* @pattern_name: Initial pattern name or %NULL to use current selection.
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*
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* Creates a new #GtkWidget that completely controls the selection of
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* a pattern. This widget is suitable for placement in a table in a
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* plug-in dialog.
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*
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* Returns: A #GtkWidget that you can use in your UI.
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*
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* Since: GIMP 2.4
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*/
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GtkWidget *
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gimp_pattern_select_button_new (const gchar *title,
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const gchar *pattern_name)
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{
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GtkWidget *button;
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if (title)
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button = g_object_new (GIMP_TYPE_PATTERN_SELECT_BUTTON,
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"title", title,
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"pattern-name", pattern_name,
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NULL);
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else
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button = g_object_new (GIMP_TYPE_PATTERN_SELECT_BUTTON,
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"pattern-name", pattern_name,
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NULL);
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return button;
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}
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/**
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* gimp_pattern_select_button_get_pattern:
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* @button: A #GimpPatternSelectButton
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*
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* Retrieves the name of currently selected pattern.
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*
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* Returns: an internal copy of the pattern name which must not be freed.
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*
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* Since: GIMP 2.4
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*/
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const gchar *
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gimp_pattern_select_button_get_pattern (GimpPatternSelectButton *button)
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{
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GimpPatternSelectButtonPrivate *priv;
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g_return_val_if_fail (GIMP_IS_PATTERN_SELECT_BUTTON (button), NULL);
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priv = GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE (button);
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return priv->pattern_name;
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}
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/**
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* gimp_pattern_select_button_set_pattern:
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* @button: A #GimpPatternSelectButton
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* @pattern_name: Pattern name to set; %NULL means no change.
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*
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* Sets the current pattern for the pattern select button.
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*
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* Since: GIMP 2.4
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*/
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void
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gimp_pattern_select_button_set_pattern (GimpPatternSelectButton *button,
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const gchar *pattern_name)
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{
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GimpSelectButton *select_button;
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g_return_if_fail (GIMP_IS_PATTERN_SELECT_BUTTON (button));
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select_button = GIMP_SELECT_BUTTON (button);
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if (select_button->temp_callback)
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{
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gimp_patterns_set_popup (select_button->temp_callback, pattern_name);
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}
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else
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{
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gchar *name;
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gint width;
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gint height;
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gint bytes;
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gint mask_data_size;
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guint8 *mask_data;
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if (pattern_name && *pattern_name)
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name = g_strdup (pattern_name);
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else
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name = gimp_context_get_pattern ();
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if (gimp_pattern_get_pixels (name,
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&width,
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&height,
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&bytes,
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&mask_data_size,
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&mask_data))
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{
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gimp_pattern_select_button_callback (name,
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width, height, bytes, mask_data,
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FALSE, button);
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g_free (mask_data);
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}
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g_free (name);
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}
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}
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/* private functions */
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static void
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gimp_pattern_select_button_finalize (GObject *object)
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{
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GimpPatternSelectButtonPrivate *priv;
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priv = GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE (object);
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g_free (priv->pattern_name);
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priv->pattern_name = NULL;
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g_free (priv->mask_data);
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priv->mask_data = NULL;
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g_free (priv->title);
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priv->title = NULL;
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G_OBJECT_CLASS (gimp_pattern_select_button_parent_class)->finalize (object);
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}
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static void
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gimp_pattern_select_button_set_property (GObject *object,
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guint property_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GimpPatternSelectButton *button;
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GimpPatternSelectButtonPrivate *priv;
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button = GIMP_PATTERN_SELECT_BUTTON (object);
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priv = GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE (button);
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switch (property_id)
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{
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case PROP_TITLE:
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priv->title = g_value_dup_string (value);
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break;
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case PROP_PATTERN_NAME:
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gimp_pattern_select_button_set_pattern (button,
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g_value_get_string (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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gimp_pattern_select_button_get_property (GObject *object,
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guint property_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GimpPatternSelectButton *button;
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GimpPatternSelectButtonPrivate *priv;
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button = GIMP_PATTERN_SELECT_BUTTON (object);
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priv = GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE (button);
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switch (property_id)
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{
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case PROP_TITLE:
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g_value_set_string (value, priv->title);
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break;
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case PROP_PATTERN_NAME:
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g_value_set_string (value, priv->pattern_name);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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static void
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gimp_pattern_select_button_callback (const gchar *pattern_name,
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gint width,
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gint height,
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gint bytes,
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const guchar *mask_data,
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gboolean dialog_closing,
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gpointer user_data)
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{
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GimpPatternSelectButton *button;
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GimpPatternSelectButtonPrivate *priv;
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GimpSelectButton *select_button;
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button = GIMP_PATTERN_SELECT_BUTTON (user_data);
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priv = GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE (button);
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select_button = GIMP_SELECT_BUTTON (button);
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g_free (priv->pattern_name);
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g_free (priv->mask_data);
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priv->pattern_name = g_strdup (pattern_name);
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priv->width = width;
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priv->height = height;
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priv->bytes = bytes;
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priv->mask_data = g_memdup (mask_data, width * height * bytes);
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gimp_pattern_select_preview_update (priv->preview,
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width, height, bytes, mask_data);
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if (dialog_closing)
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select_button->temp_callback = NULL;
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g_signal_emit (button, pattern_button_signals[PATTERN_SET], 0,
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pattern_name, width, height, bytes, dialog_closing);
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g_object_notify (G_OBJECT (button), "pattern-name");
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}
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static void
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gimp_pattern_select_button_clicked (GimpPatternSelectButton *button)
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{
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GimpPatternSelectButtonPrivate *priv;
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GimpSelectButton *select_button;
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priv = GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE (button);
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select_button = GIMP_SELECT_BUTTON (button);
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if (select_button->temp_callback)
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{
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/* calling gimp_patterns_set_popup() raises the dialog */
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gimp_patterns_set_popup (select_button->temp_callback,
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priv->pattern_name);
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}
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else
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{
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select_button->temp_callback =
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gimp_pattern_select_new (priv->title, priv->pattern_name,
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gimp_pattern_select_button_callback,
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button);
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}
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}
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static void
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gimp_pattern_select_preview_resize (GimpPatternSelectButton *button)
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{
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GimpPatternSelectButtonPrivate *priv;
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priv = GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE (button);
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if (priv->width > 0 && priv->height > 0)
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gimp_pattern_select_preview_update (priv->preview,
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priv->width,
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priv->height,
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priv->bytes,
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priv->mask_data);
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}
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static gboolean
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gimp_pattern_select_preview_events (GtkWidget *widget,
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GdkEvent *event,
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GimpPatternSelectButton *button)
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{
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GimpPatternSelectButtonPrivate *priv;
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GdkEventButton *bevent;
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priv = GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE (button);
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if (priv->mask_data)
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{
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switch (event->type)
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{
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case GDK_BUTTON_PRESS:
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bevent = (GdkEventButton *) event;
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if (bevent->button == 1)
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{
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gtk_grab_add (widget);
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gimp_pattern_select_button_open_popup (button,
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bevent->x, bevent->y);
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}
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break;
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case GDK_BUTTON_RELEASE:
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bevent = (GdkEventButton *) event;
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if (bevent->button == 1)
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{
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gtk_grab_remove (widget);
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gimp_pattern_select_button_close_popup (button);
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}
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break;
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default:
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break;
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}
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}
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|
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return FALSE;
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}
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|
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static void
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gimp_pattern_select_preview_update (GtkWidget *preview,
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gint width,
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gint height,
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gint bytes,
|
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const guchar *mask_data)
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{
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GimpImageType type;
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switch (bytes)
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{
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case 1: type = GIMP_GRAY_IMAGE; break;
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case 2: type = GIMP_GRAYA_IMAGE; break;
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case 3: type = GIMP_RGB_IMAGE; break;
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case 4: type = GIMP_RGBA_IMAGE; break;
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default:
|
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return;
|
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}
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|
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gimp_preview_area_draw (GIMP_PREVIEW_AREA (preview),
|
|
0, 0, width, height,
|
|
type,
|
|
mask_data,
|
|
width * bytes);
|
|
}
|
|
|
|
static void
|
|
gimp_pattern_select_button_open_popup (GimpPatternSelectButton *button,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
GimpPatternSelectButtonPrivate *priv;
|
|
GtkWidget *frame;
|
|
GtkWidget *preview;
|
|
GdkScreen *screen;
|
|
gint x_org;
|
|
gint y_org;
|
|
gint scr_w;
|
|
gint scr_h;
|
|
|
|
priv = GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE (button);
|
|
|
|
if (priv->popup)
|
|
gimp_pattern_select_button_close_popup (button);
|
|
|
|
if (priv->width <= CELL_SIZE && priv->height <= CELL_SIZE)
|
|
return;
|
|
|
|
screen = gtk_widget_get_screen (GTK_WIDGET (button));
|
|
|
|
priv->popup = gtk_window_new (GTK_WINDOW_POPUP);
|
|
gtk_window_set_type_hint (GTK_WINDOW (priv->popup), GDK_WINDOW_TYPE_HINT_DND);
|
|
gtk_window_set_screen (GTK_WINDOW (priv->popup), screen);
|
|
|
|
frame = gtk_frame_new (NULL);
|
|
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
|
|
gtk_container_add (GTK_CONTAINER (priv->popup), frame);
|
|
gtk_widget_show (frame);
|
|
|
|
preview = gimp_preview_area_new ();
|
|
gtk_widget_set_size_request (preview, priv->width, priv->height);
|
|
gtk_container_add (GTK_CONTAINER (frame), preview);
|
|
gtk_widget_show (preview);
|
|
|
|
/* decide where to put the popup */
|
|
gdk_window_get_origin (gtk_widget_get_window (priv->preview),
|
|
&x_org, &y_org);
|
|
|
|
scr_w = gdk_screen_get_width (screen);
|
|
scr_h = gdk_screen_get_height (screen);
|
|
|
|
x = x_org + x - (priv->width / 2);
|
|
y = y_org + y - (priv->height / 2);
|
|
x = (x < 0) ? 0 : x;
|
|
y = (y < 0) ? 0 : y;
|
|
x = (x + priv->width > scr_w) ? scr_w - priv->width : x;
|
|
y = (y + priv->height > scr_h) ? scr_h - priv->height : y;
|
|
|
|
gtk_window_move (GTK_WINDOW (priv->popup), x, y);
|
|
|
|
gtk_widget_show (priv->popup);
|
|
|
|
/* Draw the pattern */
|
|
gimp_pattern_select_preview_update (preview,
|
|
priv->width,
|
|
priv->height,
|
|
priv->bytes,
|
|
priv->mask_data);
|
|
}
|
|
|
|
static void
|
|
gimp_pattern_select_button_close_popup (GimpPatternSelectButton *button)
|
|
{
|
|
GimpPatternSelectButtonPrivate *priv;
|
|
|
|
priv = GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE (button);
|
|
|
|
if (priv->popup)
|
|
{
|
|
gtk_widget_destroy (priv->popup);
|
|
priv->popup = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_pattern_select_drag_data_received (GimpPatternSelectButton *button,
|
|
GdkDragContext *context,
|
|
gint x,
|
|
gint y,
|
|
GtkSelectionData *selection,
|
|
guint info,
|
|
guint time)
|
|
{
|
|
gint length = gtk_selection_data_get_length (selection);
|
|
gchar *str;
|
|
|
|
if (gtk_selection_data_get_format (selection) != 8 || length < 1)
|
|
{
|
|
g_warning ("Received invalid pattern data!");
|
|
return;
|
|
}
|
|
|
|
str = g_strndup ((const gchar *) gtk_selection_data_get_data (selection),
|
|
length);
|
|
|
|
if (g_utf8_validate (str, -1, NULL))
|
|
{
|
|
gint pid;
|
|
gpointer unused;
|
|
gint name_offset = 0;
|
|
|
|
if (sscanf (str, "%i:%p:%n", &pid, &unused, &name_offset) >= 2 &&
|
|
pid == gimp_getpid () && name_offset > 0)
|
|
{
|
|
gchar *name = str + name_offset;
|
|
|
|
gimp_pattern_select_button_set_pattern (button, name);
|
|
}
|
|
}
|
|
|
|
g_free (str);
|
|
}
|
|
|
|
static GtkWidget *
|
|
gimp_pattern_select_button_create_inside (GimpPatternSelectButton *pattern_button)
|
|
{
|
|
GtkWidget *hbox;
|
|
GtkWidget *frame;
|
|
GtkWidget *button;
|
|
GimpPatternSelectButtonPrivate *priv;
|
|
|
|
priv = GIMP_PATTERN_SELECT_BUTTON_GET_PRIVATE (pattern_button);
|
|
|
|
gtk_widget_push_composite_child ();
|
|
|
|
hbox = gtk_hbox_new (FALSE, 6);
|
|
|
|
frame = gtk_frame_new (NULL);
|
|
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
|
|
gtk_box_pack_start (GTK_BOX (hbox), frame, FALSE, FALSE, 0);
|
|
|
|
priv->preview = gimp_preview_area_new ();
|
|
gtk_widget_add_events (priv->preview,
|
|
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
|
|
gtk_widget_set_size_request (priv->preview, CELL_SIZE, CELL_SIZE);
|
|
gtk_container_add (GTK_CONTAINER (frame), priv->preview);
|
|
|
|
g_signal_connect_swapped (priv->preview, "size-allocate",
|
|
G_CALLBACK (gimp_pattern_select_preview_resize),
|
|
pattern_button);
|
|
g_signal_connect (priv->preview, "event",
|
|
G_CALLBACK (gimp_pattern_select_preview_events),
|
|
pattern_button);
|
|
|
|
gtk_drag_dest_set (GTK_WIDGET (priv->preview),
|
|
GTK_DEST_DEFAULT_HIGHLIGHT |
|
|
GTK_DEST_DEFAULT_MOTION |
|
|
GTK_DEST_DEFAULT_DROP,
|
|
&target, 1,
|
|
GDK_ACTION_COPY);
|
|
|
|
g_signal_connect (priv->preview, "drag-data-received",
|
|
G_CALLBACK (gimp_pattern_select_drag_data_received),
|
|
hbox);
|
|
|
|
button = gtk_button_new_with_mnemonic (_("_Browse..."));
|
|
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
|
|
|
|
g_signal_connect_swapped (button, "clicked",
|
|
G_CALLBACK (gimp_pattern_select_button_clicked),
|
|
pattern_button);
|
|
|
|
gtk_widget_show_all (hbox);
|
|
|
|
gtk_widget_pop_composite_child ();
|
|
|
|
return hbox;
|
|
}
|