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Diffstat (limited to 'libmate-desktop/mate-colorbutton.c')
| -rw-r--r-- | libmate-desktop/mate-colorbutton.c | 865 |
1 files changed, 865 insertions, 0 deletions
diff --git a/libmate-desktop/mate-colorbutton.c b/libmate-desktop/mate-colorbutton.c new file mode 100644 index 0000000..e329d3a --- /dev/null +++ b/libmate-desktop/mate-colorbutton.c @@ -0,0 +1,865 @@ +/* + * GTK - The GIMP Toolkit + * Copyright (C) 1998, 1999 Red Hat, Inc. + * All rights reserved. + * + * This Library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This Library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with the Gnome Library; see the file COPYING.LIB. If not, + * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ +/* Color picker button for GNOME + * + * Author: Federico Mena <[email protected]> + * + * Modified by the GTK+ Team and others 2003. See the AUTHORS + * file for a list of people on the GTK+ Team. See the ChangeLog + * files for a list of changes. These files are distributed with + * GTK+ at ftp://ftp.gtk.org/pub/gtk/. + */ + +#include "config.h" +#include "private.h" + +#include "mate-colorbutton.h" +#include "mate-colorsel.h" +#include "mate-colorseldialog.h" +#include <gtk/gtk.h> +#include <gdk/gdkkeysyms.h> +#include <gdk-pixbuf/gdk-pixbuf.h> +#include <glib/gi18n-lib.h> + +/* Size of checks and gray levels for alpha compositing checkerboard */ +#define CHECK_SIZE 4 +#define CHECK_DARK (1.0 / 3.0) +#define CHECK_LIGHT (2.0 / 3.0) + +#define MATE_COLOR_BUTTON_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), MATE_TYPE_COLOR_BUTTON, MateColorButtonPrivate)) + +struct _MateColorButtonPrivate +{ + GtkWidget *draw_area; /* Widget where we draw the color sample */ + GtkWidget *cs_dialog; /* Color selection dialog */ + + gchar *title; /* Title for the color selection window */ + + GdkColor color; + guint16 alpha; + + guint use_alpha : 1; /* Use alpha or not */ +}; + +/* Properties */ +enum +{ + PROP_0, + PROP_USE_ALPHA, + PROP_TITLE, + PROP_COLOR, + PROP_ALPHA +}; + +/* Signals */ +enum +{ + COLOR_SET, + LAST_SIGNAL +}; + +/* gobject signals */ +static void mate_color_button_finalize (GObject *object); +static void mate_color_button_set_property (GObject *object, + guint param_id, + const GValue *value, + GParamSpec *pspec); +static void mate_color_button_get_property (GObject *object, + guint param_id, + GValue *value, + GParamSpec *pspec); + +/* gtkwidget signals */ +static void mate_color_button_state_changed (GtkWidget *widget, + GtkStateType previous_state); + +/* gtkbutton signals */ +static void mate_color_button_clicked (GtkButton *button); + +/* source side drag signals */ +static void mate_color_button_drag_begin (GtkWidget *widget, + GdkDragContext *context, + gpointer data); +static void mate_color_button_drag_data_get (GtkWidget *widget, + GdkDragContext *context, + GtkSelectionData *selection_data, + guint info, + guint time, + MateColorButton *color_button); + +/* target side drag signals */ +static void mate_color_button_drag_data_received (GtkWidget *widget, + GdkDragContext *context, + gint x, + gint y, + GtkSelectionData *selection_data, + guint info, + guint32 time, + MateColorButton *color_button); + + +static guint color_button_signals[LAST_SIGNAL] = { 0 }; + +static const GtkTargetEntry drop_types[] = { { "application/x-color", 0, 0 } }; + +G_DEFINE_TYPE (MateColorButton, mate_color_button, GTK_TYPE_BUTTON) + +static void +mate_color_button_class_init (MateColorButtonClass *klass) +{ + GObjectClass *gobject_class; + GtkWidgetClass *widget_class; + GtkButtonClass *button_class; + + gobject_class = G_OBJECT_CLASS (klass); + widget_class = GTK_WIDGET_CLASS (klass); + button_class = GTK_BUTTON_CLASS (klass); + + gobject_class->get_property = mate_color_button_get_property; + gobject_class->set_property = mate_color_button_set_property; + gobject_class->finalize = mate_color_button_finalize; + widget_class->state_changed = mate_color_button_state_changed; + button_class->clicked = mate_color_button_clicked; + klass->color_set = NULL; + + /** + * MateColorButton:use-alpha: + * + * If this property is set to %TRUE, the color swatch on the button is rendered against a + * checkerboard background to show its opacity and the opacity slider is displayed in the + * color selection dialog. + * + * Since: 2.4 + */ + g_object_class_install_property (gobject_class, + PROP_USE_ALPHA, + g_param_spec_boolean ("use-alpha", _("Use alpha"), + _("Whether or not to give the color an alpha value"), + FALSE, + G_PARAM_READWRITE)); + + /** + * MateColorButton:title: + * + * The title of the color selection dialog + * + * Since: 2.4 + */ + g_object_class_install_property (gobject_class, + PROP_TITLE, + g_param_spec_string ("title", + _("Title"), + _("The title of the color selection dialog"), + _("Pick a Color"), + G_PARAM_READWRITE)); + + /** + * MateColorButton:color: + * + * The selected color. + * + * Since: 2.4 + */ + g_object_class_install_property (gobject_class, + PROP_COLOR, + g_param_spec_boxed ("color", + _("Current Color"), + _("The selected color"), + GDK_TYPE_COLOR, + G_PARAM_READWRITE)); + + /** + * MateColorButton:alpha: + * + * The selected opacity value (0 fully transparent, 65535 fully opaque). + * + * Since: 2.4 + */ + g_object_class_install_property (gobject_class, + PROP_ALPHA, + g_param_spec_uint ("alpha", + _("Current Alpha"), + _("The selected opacity value (0 fully transparent, 65535 fully opaque)"), + 0, 65535, 65535, + G_PARAM_READWRITE)); + + /** + * MateColorButton::color-set: + * @widget: the object which received the signal. + * + * The ::color-set signal is emitted when the user selects a color. + * When handling this signal, use mate_color_button_get_color() and + * mate_color_button_get_alpha() to find out which color was just selected. + * + * Note that this signal is only emitted when the <emphasis>user</emphasis> + * changes the color. If you need to react to programmatic color changes + * as well, use the notify::color signal. + * + * Since: 2.4 + */ + color_button_signals[COLOR_SET] = g_signal_new ("color-set", + G_TYPE_FROM_CLASS (gobject_class), + G_SIGNAL_RUN_FIRST, + G_STRUCT_OFFSET (MateColorButtonClass, color_set), + NULL, NULL, + g_cclosure_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + g_type_class_add_private (gobject_class, sizeof (MateColorButtonPrivate)); +} + +static gboolean +mate_color_button_has_alpha (MateColorButton *color_button) +{ + return color_button->priv->use_alpha && + color_button->priv->alpha < 65535; +} + +static cairo_pattern_t * +mate_color_button_get_checkered (void) +{ + /* need to respect pixman's stride being a multiple of 4 */ + static unsigned char data[8] = { 0xFF, 0x00, 0x00, 0x00, + 0x00, 0xFF, 0x00, 0x00 }; + static cairo_surface_t *checkered = NULL; + cairo_pattern_t *pattern; + + if (checkered == NULL) + { + checkered = cairo_image_surface_create_for_data (data, + CAIRO_FORMAT_A8, + 2, 2, 4); + } + + pattern = cairo_pattern_create_for_surface (checkered); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); + cairo_pattern_set_filter (pattern, CAIRO_FILTER_NEAREST); + + return pattern; +} + +/* Handle exposure events for the color picker's drawing area */ +static gint +expose_event (GtkWidget *widget, + GdkEventExpose *event, + gpointer data) +{ + MateColorButton *color_button = MATE_COLOR_BUTTON (data); + GtkAllocation allocation; + cairo_pattern_t *checkered; + cairo_t *cr; + + cr = gdk_cairo_create (event->window); + + gtk_widget_get_allocation (widget, &allocation); + gdk_cairo_rectangle (cr, &allocation); + cairo_clip (cr); + + if (mate_color_button_has_alpha (color_button)) + { + cairo_save (cr); + + cairo_set_source_rgb (cr, CHECK_DARK, CHECK_DARK, CHECK_DARK); + cairo_paint (cr); + + cairo_set_source_rgb (cr, CHECK_LIGHT, CHECK_LIGHT, CHECK_LIGHT); + cairo_scale (cr, CHECK_SIZE, CHECK_SIZE); + + checkered = mate_color_button_get_checkered (); + cairo_mask (cr, checkered); + cairo_pattern_destroy (checkered); + + cairo_restore (cr); + + cairo_set_source_rgba (cr, + color_button->priv->color.red / 65535., + color_button->priv->color.green / 65535., + color_button->priv->color.blue / 65535., + color_button->priv->alpha / 65535.); + } + else + { + gdk_cairo_set_source_color (cr, &color_button->priv->color); + } + + cairo_paint (cr); + + if (!gtk_widget_is_sensitive (GTK_WIDGET (color_button))) + { + gdk_cairo_set_source_color (cr, >K_WIDGET(color_button)->style->bg[GTK_STATE_INSENSITIVE]); + checkered = mate_color_button_get_checkered (); + cairo_mask (cr, checkered); + cairo_pattern_destroy (checkered); + } + + cairo_destroy (cr); + + return FALSE; +} + +static void +mate_color_button_state_changed (GtkWidget *widget, + GtkStateType previous_state) +{ + gtk_widget_queue_draw (widget); +} + +static void +mate_color_button_drag_data_received (GtkWidget *widget, + GdkDragContext *context, + gint x, + gint y, + GtkSelectionData *selection_data, + guint info, + guint32 time, + MateColorButton *color_button) +{ + guint16 *dropped; + + if (selection_data->length < 0) + return; + + /* We accept drops with the wrong format, since the KDE color + * chooser incorrectly drops application/x-color with format 8. + */ + if (selection_data->length != 8) + { + g_warning (_("Received invalid color data\n")); + return; + } + + + dropped = (guint16 *)selection_data->data; + + color_button->priv->color.red = dropped[0]; + color_button->priv->color.green = dropped[1]; + color_button->priv->color.blue = dropped[2]; + color_button->priv->alpha = dropped[3]; + + gtk_widget_queue_draw (color_button->priv->draw_area); + + g_signal_emit (color_button, color_button_signals[COLOR_SET], 0); + + g_object_freeze_notify (G_OBJECT (color_button)); + g_object_notify (G_OBJECT (color_button), "color"); + g_object_notify (G_OBJECT (color_button), "alpha"); + g_object_thaw_notify (G_OBJECT (color_button)); +} + +static void +set_color_icon (GdkDragContext *context, + GdkColor *color) +{ + GdkPixbuf *pixbuf; + guint32 pixel; + + pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, + 8, 48, 32); + + pixel = ((color->red & 0xff00) << 16) | + ((color->green & 0xff00) << 8) | + (color->blue & 0xff00); + + gdk_pixbuf_fill (pixbuf, pixel); + + gtk_drag_set_icon_pixbuf (context, pixbuf, -2, -2); + g_object_unref (pixbuf); +} + +static void +mate_color_button_drag_begin (GtkWidget *widget, + GdkDragContext *context, + gpointer data) +{ + MateColorButton *color_button = data; + + set_color_icon (context, &color_button->priv->color); +} + +static void +mate_color_button_drag_data_get (GtkWidget *widget, + GdkDragContext *context, + GtkSelectionData *selection_data, + guint info, + guint time, + MateColorButton *color_button) +{ + guint16 dropped[4]; + + dropped[0] = color_button->priv->color.red; + dropped[1] = color_button->priv->color.green; + dropped[2] = color_button->priv->color.blue; + dropped[3] = color_button->priv->alpha; + + gtk_selection_data_set (selection_data, selection_data->target, + 16, (guchar *)dropped, 8); +} + +static void +mate_color_button_init (MateColorButton *color_button) +{ + GtkWidget *alignment; + GtkWidget *frame; + PangoLayout *layout; + PangoRectangle rect; + + _mate_desktop_init_i18n (); + + /* Create the widgets */ + color_button->priv = MATE_COLOR_BUTTON_GET_PRIVATE (color_button); + + gtk_widget_push_composite_child (); + + alignment = gtk_alignment_new (0.5, 0.5, 0.5, 1.0); + gtk_container_set_border_width (GTK_CONTAINER (alignment), 1); + gtk_container_add (GTK_CONTAINER (color_button), alignment); + gtk_widget_show (alignment); + + frame = gtk_frame_new (NULL); + gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_OUT); + gtk_container_add (GTK_CONTAINER (alignment), frame); + gtk_widget_show (frame); + + /* Just some widget we can hook to expose-event on */ + color_button->priv->draw_area = gtk_alignment_new (0.5, 0.5, 0.0, 0.0); + + layout = gtk_widget_create_pango_layout (GTK_WIDGET (color_button), "Black"); + pango_layout_get_pixel_extents (layout, NULL, &rect); + g_object_unref (layout); + + gtk_widget_set_size_request (color_button->priv->draw_area, rect.width - 2, rect.height - 2); + g_signal_connect (color_button->priv->draw_area, "expose-event", + G_CALLBACK (expose_event), color_button); + gtk_container_add (GTK_CONTAINER (frame), color_button->priv->draw_area); + gtk_widget_show (color_button->priv->draw_area); + + color_button->priv->title = g_strdup (_("Pick a Color")); /* default title */ + + /* Start with opaque black, alpha disabled */ + + color_button->priv->color.red = 0; + color_button->priv->color.green = 0; + color_button->priv->color.blue = 0; + color_button->priv->alpha = 65535; + color_button->priv->use_alpha = FALSE; + + gtk_drag_dest_set (GTK_WIDGET (color_button), + GTK_DEST_DEFAULT_MOTION | + GTK_DEST_DEFAULT_HIGHLIGHT | + GTK_DEST_DEFAULT_DROP, + drop_types, 1, GDK_ACTION_COPY); + gtk_drag_source_set (GTK_WIDGET(color_button), + GDK_BUTTON1_MASK|GDK_BUTTON3_MASK, + drop_types, 1, + GDK_ACTION_COPY); + g_signal_connect (color_button, "drag-begin", + G_CALLBACK (mate_color_button_drag_begin), color_button); + g_signal_connect (color_button, "drag-data-received", + G_CALLBACK (mate_color_button_drag_data_received), color_button); + g_signal_connect (color_button, "drag-data-get", + G_CALLBACK (mate_color_button_drag_data_get), color_button); + + gtk_widget_pop_composite_child (); +} + +static void +mate_color_button_finalize (GObject *object) +{ + MateColorButton *color_button = MATE_COLOR_BUTTON (object); + + if (color_button->priv->cs_dialog != NULL) + gtk_widget_destroy (color_button->priv->cs_dialog); + color_button->priv->cs_dialog = NULL; + + g_free (color_button->priv->title); + color_button->priv->title = NULL; + + G_OBJECT_CLASS (mate_color_button_parent_class)->finalize (object); +} + + +/** + * mate_color_button_new: + * + * Creates a new color button. This returns a widget in the form of + * a small button containing a swatch representing the current selected + * color. When the button is clicked, a color-selection dialog will open, + * allowing the user to select a color. The swatch will be updated to reflect + * the new color when the user finishes. + * + * Returns: a new color button. + * + * Since: 2.4 + */ +GtkWidget * +mate_color_button_new (void) +{ + return g_object_new (MATE_TYPE_COLOR_BUTTON, NULL); +} + +/** + * mate_color_button_new_with_color: + * @color: A #GdkColor to set the current color with. + * + * Creates a new color button. + * + * Returns: a new color button. + * + * Since: 2.4 + */ +GtkWidget * +mate_color_button_new_with_color (const GdkColor *color) +{ + return g_object_new (MATE_TYPE_COLOR_BUTTON, "color", color, NULL); +} + +static void +dialog_ok_clicked (GtkWidget *widget, + gpointer data) +{ + MateColorButton *color_button = MATE_COLOR_BUTTON (data); + MateColorSelection *color_selection; + + color_selection = MATE_COLOR_SELECTION (MATE_COLOR_SELECTION_DIALOG (color_button->priv->cs_dialog)->colorsel); + + mate_color_selection_get_current_color (color_selection, &color_button->priv->color); + color_button->priv->alpha = mate_color_selection_get_current_alpha (color_selection); + + gtk_widget_hide (color_button->priv->cs_dialog); + + gtk_widget_queue_draw (color_button->priv->draw_area); + + g_signal_emit (color_button, color_button_signals[COLOR_SET], 0); + + g_object_freeze_notify (G_OBJECT (color_button)); + g_object_notify (G_OBJECT (color_button), "color"); + g_object_notify (G_OBJECT (color_button), "alpha"); + g_object_thaw_notify (G_OBJECT (color_button)); +} + +static gboolean +dialog_destroy (GtkWidget *widget, + gpointer data) +{ + MateColorButton *color_button = MATE_COLOR_BUTTON (data); + + color_button->priv->cs_dialog = NULL; + + return FALSE; +} + +static void +dialog_cancel_clicked (GtkWidget *widget, + gpointer data) +{ + MateColorButton *color_button = MATE_COLOR_BUTTON (data); + + gtk_widget_hide (color_button->priv->cs_dialog); +} + +static void +mate_color_button_clicked (GtkButton *button) +{ + MateColorButton *color_button = MATE_COLOR_BUTTON (button); + MateColorSelectionDialog *color_dialog; + + /* if dialog already exists, make sure it's shown and raised */ + if (!color_button->priv->cs_dialog) + { + /* Create the dialog and connects its buttons */ + GtkWidget *parent; + + parent = gtk_widget_get_toplevel (GTK_WIDGET (color_button)); + + color_button->priv->cs_dialog = mate_color_selection_dialog_new (color_button->priv->title); + + color_dialog = MATE_COLOR_SELECTION_DIALOG (color_button->priv->cs_dialog); + + if (gtk_widget_is_toplevel (parent) && GTK_IS_WINDOW (parent)) + { + if (GTK_WINDOW (parent) != gtk_window_get_transient_for (GTK_WINDOW (color_dialog))) + gtk_window_set_transient_for (GTK_WINDOW (color_dialog), GTK_WINDOW (parent)); + + gtk_window_set_modal (GTK_WINDOW (color_dialog), + gtk_window_get_modal (GTK_WINDOW (parent))); + } + + g_signal_connect (color_dialog->ok_button, "clicked", + G_CALLBACK (dialog_ok_clicked), color_button); + g_signal_connect (color_dialog->cancel_button, "clicked", + G_CALLBACK (dialog_cancel_clicked), color_button); + g_signal_connect (color_dialog, "destroy", + G_CALLBACK (dialog_destroy), color_button); + } + + color_dialog = MATE_COLOR_SELECTION_DIALOG (color_button->priv->cs_dialog); + + mate_color_selection_set_has_opacity_control (MATE_COLOR_SELECTION (color_dialog->colorsel), + color_button->priv->use_alpha); + + mate_color_selection_set_previous_color (MATE_COLOR_SELECTION (color_dialog->colorsel), + &color_button->priv->color); + mate_color_selection_set_previous_alpha (MATE_COLOR_SELECTION (color_dialog->colorsel), + color_button->priv->alpha); + + mate_color_selection_set_current_color (MATE_COLOR_SELECTION (color_dialog->colorsel), + &color_button->priv->color); + mate_color_selection_set_current_alpha (MATE_COLOR_SELECTION (color_dialog->colorsel), + color_button->priv->alpha); + + gtk_window_present (GTK_WINDOW (color_button->priv->cs_dialog)); +} + +/** + * mate_color_button_set_color: + * @color_button: a #MateColorButton. + * @color: A #GdkColor to set the current color with. + * + * Sets the current color to be @color. + * + * Since: 2.4 + **/ +void +mate_color_button_set_color (MateColorButton *color_button, + const GdkColor *color) +{ + g_return_if_fail (MATE_IS_COLOR_BUTTON (color_button)); + g_return_if_fail (color != NULL); + + color_button->priv->color.red = color->red; + color_button->priv->color.green = color->green; + color_button->priv->color.blue = color->blue; + + gtk_widget_queue_draw (color_button->priv->draw_area); + + g_object_notify (G_OBJECT (color_button), "color"); +} + + +/** + * mate_color_button_set_alpha: + * @color_button: a #MateColorButton. + * @alpha: an integer between 0 and 65535. + * + * Sets the current opacity to be @alpha. + * + * Since: 2.4 + **/ +void +mate_color_button_set_alpha (MateColorButton *color_button, + guint16 alpha) +{ + g_return_if_fail (MATE_IS_COLOR_BUTTON (color_button)); + + color_button->priv->alpha = alpha; + + gtk_widget_queue_draw (color_button->priv->draw_area); + + g_object_notify (G_OBJECT (color_button), "alpha"); +} + +/** + * mate_color_button_get_color: + * @color_button: a #MateColorButton. + * @color: a #GdkColor to fill in with the current color. + * + * Sets @color to be the current color in the #MateColorButton widget. + * + * Since: 2.4 + **/ +void +mate_color_button_get_color (MateColorButton *color_button, + GdkColor *color) +{ + g_return_if_fail (MATE_IS_COLOR_BUTTON (color_button)); + + color->red = color_button->priv->color.red; + color->green = color_button->priv->color.green; + color->blue = color_button->priv->color.blue; +} + +/** + * mate_color_button_get_alpha: + * @color_button: a #MateColorButton. + * + * Returns the current alpha value. + * + * Return value: an integer between 0 and 65535. + * + * Since: 2.4 + **/ +guint16 +mate_color_button_get_alpha (MateColorButton *color_button) +{ + g_return_val_if_fail (MATE_IS_COLOR_BUTTON (color_button), 0); + + return color_button->priv->alpha; +} + +/** + * mate_color_button_set_use_alpha: + * @color_button: a #MateColorButton. + * @use_alpha: %TRUE if color button should use alpha channel, %FALSE if not. + * + * Sets whether or not the color button should use the alpha channel. + * + * Since: 2.4 + */ +void +mate_color_button_set_use_alpha (MateColorButton *color_button, + gboolean use_alpha) +{ + g_return_if_fail (MATE_IS_COLOR_BUTTON (color_button)); + + use_alpha = (use_alpha != FALSE); + + if (color_button->priv->use_alpha != use_alpha) + { + color_button->priv->use_alpha = use_alpha; + + gtk_widget_queue_draw (color_button->priv->draw_area); + + g_object_notify (G_OBJECT (color_button), "use-alpha"); + } +} + +/** + * mate_color_button_get_use_alpha: + * @color_button: a #MateColorButton. + * + * Does the color selection dialog use the alpha channel? + * + * Returns: %TRUE if the color sample uses alpha channel, %FALSE if not. + * + * Since: 2.4 + */ +gboolean +mate_color_button_get_use_alpha (MateColorButton *color_button) +{ + g_return_val_if_fail (MATE_IS_COLOR_BUTTON (color_button), FALSE); + + return color_button->priv->use_alpha; +} + + +/** + * mate_color_button_set_title: + * @color_button: a #MateColorButton + * @title: String containing new window title. + * + * Sets the title for the color selection dialog. + * + * Since: 2.4 + */ +void +mate_color_button_set_title (MateColorButton *color_button, + const gchar *title) +{ + gchar *old_title; + + g_return_if_fail (MATE_IS_COLOR_BUTTON (color_button)); + + old_title = color_button->priv->title; + color_button->priv->title = g_strdup (title); + g_free (old_title); + + if (color_button->priv->cs_dialog) + gtk_window_set_title (GTK_WINDOW (color_button->priv->cs_dialog), + color_button->priv->title); + + g_object_notify (G_OBJECT (color_button), "title"); +} + +/** + * mate_color_button_get_title: + * @color_button: a #MateColorButton + * + * Gets the title of the color selection dialog. + * + * Returns: An internal string, do not free the return value + * + * Since: 2.4 + */ +const gchar * +mate_color_button_get_title (MateColorButton *color_button) +{ + g_return_val_if_fail (MATE_IS_COLOR_BUTTON (color_button), NULL); + + return color_button->priv->title; +} + +static void +mate_color_button_set_property (GObject *object, + guint param_id, + const GValue *value, + GParamSpec *pspec) +{ + MateColorButton *color_button = MATE_COLOR_BUTTON (object); + + switch (param_id) + { + case PROP_USE_ALPHA: + mate_color_button_set_use_alpha (color_button, g_value_get_boolean (value)); + break; + case PROP_TITLE: + mate_color_button_set_title (color_button, g_value_get_string (value)); + break; + case PROP_COLOR: + mate_color_button_set_color (color_button, g_value_get_boxed (value)); + break; + case PROP_ALPHA: + mate_color_button_set_alpha (color_button, g_value_get_uint (value)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); + break; + } +} + +static void +mate_color_button_get_property (GObject *object, + guint param_id, + GValue *value, + GParamSpec *pspec) +{ + MateColorButton *color_button = MATE_COLOR_BUTTON (object); + GdkColor color; + + switch (param_id) + { + case PROP_USE_ALPHA: + g_value_set_boolean (value, mate_color_button_get_use_alpha (color_button)); + break; + case PROP_TITLE: + g_value_set_string (value, mate_color_button_get_title (color_button)); + break; + case PROP_COLOR: + mate_color_button_get_color (color_button, &color); + g_value_set_boxed (value, &color); + break; + case PROP_ALPHA: + g_value_set_uint (value, mate_color_button_get_alpha (color_button)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); + break; + } +} |