#include <math.h>
#include <string.h>
-#include "gdkconfig.h"
-#include "gdk/gdkkeysyms.h"
+#include "gdk/gdk.h"
#include "gtkhsv.h"
#include "gtkwindow.h"
#include "gtkselection.h"
#include "gtkprivate.h"
#include "gtkintl.h"
+
+/**
+ * SECTION:gtkcolorsel
+ * @Short_description: A widget used to select a color
+ * @Title: GtkColorSelection
+ *
+ * The #GtkColorSelection is a widget that is used to select
+ * a color. It consists of a color wheel and number of sliders
+ * and entry boxes for color parameters such as hue, saturation,
+ * value, red, green, blue, and opacity. It is found on the standard
+ * color selection dialog box #GtkColorSelectionDialog.
+ */
+
+
+/* Keep it in sync with gtksettings.c:default_color_palette */
+#define DEFAULT_COLOR_PALETTE "black:white:gray50:red:purple:blue:light blue:green:yellow:orange:lavender:brown:goldenrod4:dodger blue:pink:light green:gray10:gray30:gray75:gray90"
+
/* Number of elements in the custom palatte */
#define GTK_CUSTOM_PALETTE_WIDTH 10
#define GTK_CUSTOM_PALETTE_HEIGHT 2
PROP_HAS_PALETTE,
PROP_HAS_OPACITY_CONTROL,
PROP_CURRENT_COLOR,
- PROP_CURRENT_ALPHA
+ PROP_CURRENT_ALPHA,
+ PROP_CURRENT_RGBA
};
enum {
};
-static void gtk_color_selection_destroy (GtkObject *object);
+static void gtk_color_selection_destroy (GtkWidget *widget);
static void gtk_color_selection_finalize (GObject *object);
static void update_color (GtkColorSelection *colorsel);
static void gtk_color_selection_set_property (GObject *object,
static guint color_selection_signals[LAST_SIGNAL] = { 0 };
-static const gchar default_colors[] = "black:white:gray50:red:purple:blue:light blue:green:yellow:orange:lavender:brown:goldenrod4:dodger blue:pink:light green:gray10:gray30:gray75:gray90";
-
static GtkColorSelectionChangePaletteFunc noscreen_change_palette_hook = default_noscreen_change_palette_func;
static GtkColorSelectionChangePaletteWithScreenFunc change_palette_hook = default_change_palette_func;
gtk_color_selection_class_init (GtkColorSelectionClass *klass)
{
GObjectClass *gobject_class;
- GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->set_property = gtk_color_selection_set_property;
gobject_class->get_property = gtk_color_selection_get_property;
- object_class = GTK_OBJECT_CLASS (klass);
- object_class->destroy = gtk_color_selection_destroy;
-
widget_class = GTK_WIDGET_CLASS (klass);
+ widget_class->destroy = gtk_color_selection_destroy;
widget_class->realize = gtk_color_selection_realize;
widget_class->unrealize = gtk_color_selection_unrealize;
widget_class->show_all = gtk_color_selection_show_all;
P_("The current opacity value (0 fully transparent, 65535 fully opaque)"),
0, 65535, 65535,
GTK_PARAM_READWRITE));
-
+
+ /**
+ * GtkColorSelection:current-rgba
+ *
+ * The current RGBA color.
+ *
+ * Since: 3.0
+ */
+ g_object_class_install_property (gobject_class,
+ PROP_CURRENT_RGBA,
+ g_param_spec_boxed ("current-rgba",
+ P_("Current RGBA"),
+ P_("The current RGBA color"),
+ GDK_TYPE_RGBA,
+ GTK_PARAM_READWRITE));
+
+ /**
+ * GtkColorSelection::color-changed:
+ * @colorselection: the object which received the signal.
+ *
+ * This signal is emitted when the color changes in the #GtkColorSelection
+ * according to its update policy.
+ */
color_selection_signals[COLOR_CHANGED] =
g_signal_new (I_("color-changed"),
- G_OBJECT_CLASS_TYPE (object_class),
+ G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkColorSelectionClass, color_changed),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
- gtk_settings_install_property (g_param_spec_string ("gtk-color-palette",
- P_("Custom palette"),
- P_("Palette to use in the color selector"),
- default_colors,
- GTK_PARAM_READWRITE));
-
- g_type_class_add_private (gobject_class, sizeof (GtkColorSelectionPrivate));
+ g_type_class_add_private (gobject_class, sizeof (GtkColorSelectionPrivate));
}
static void
priv->default_set = FALSE;
priv->default_alpha_set = FALSE;
- top_hbox = gtk_hbox_new (FALSE, 12);
+ top_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
gtk_box_pack_start (GTK_BOX (colorsel), top_hbox, FALSE, FALSE, 0);
- vbox = gtk_vbox_new (FALSE, 6);
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
priv->triangle_colorsel = gtk_hsv_new ();
g_signal_connect (priv->triangle_colorsel, "changed",
G_CALLBACK (hsv_changed), colorsel);
gtk_widget_set_tooltip_text (priv->triangle_colorsel,
_("Select the color you want from the outer ring. Select the darkness or lightness of that color using the inner triangle."));
- hbox = gtk_hbox_new (FALSE, 6);
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_end (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
frame = gtk_frame_new (NULL);
gtk_widget_set_tooltip_text (button,
_("Click the eyedropper, then click a color anywhere on your screen to select that color."));
- top_right_vbox = gtk_vbox_new (FALSE, 6);
+ top_right_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_box_pack_start (GTK_BOX (top_hbox), top_right_vbox, FALSE, FALSE, 0);
table = gtk_table_new (8, 6, FALSE);
gtk_box_pack_start (GTK_BOX (top_right_vbox), table, FALSE, FALSE, 0);
_("Amount of green light in the color."));
make_label_spinbutton (colorsel, &priv->blue_spinbutton, _("_Blue:"), table, 6, 2, COLORSEL_BLUE,
_("Amount of blue light in the color."));
- gtk_table_attach_defaults (GTK_TABLE (table), gtk_hseparator_new (), 0, 8, 3, 4);
+ gtk_table_attach_defaults (GTK_TABLE (table), gtk_separator_new (GTK_ORIENTATION_HORIZONTAL), 0, 8, 3, 4);
priv->opacity_label = gtk_label_new_with_mnemonic (_("Op_acity:"));
gtk_misc_set_alignment (GTK_MISC (priv->opacity_label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), priv->opacity_label, 0, 1, 4, 5);
- adjust = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 255.0, 1.0, 1.0, 0.0));
+ adjust = gtk_adjustment_new (0.0, 0.0, 255.0, 1.0, 1.0, 0.0);
g_object_set_data (G_OBJECT (adjust), I_("COLORSEL"), colorsel);
- priv->opacity_slider = gtk_hscale_new (adjust);
+ priv->opacity_slider = gtk_scale_new (GTK_ORIENTATION_HORIZONTAL, adjust);
gtk_widget_set_tooltip_text (priv->opacity_slider,
_("Transparency of the color."));
gtk_label_set_mnemonic_widget (GTK_LABEL (priv->opacity_label),
}
}
set_selected_palette (colorsel, 0, 0);
- priv->palette_frame = gtk_vbox_new (FALSE, 6);
+ priv->palette_frame = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
label = gtk_label_new_with_mnemonic (_("_Palette:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_box_pack_start (GTK_BOX (priv->palette_frame), label, FALSE, FALSE, 0);
case PROP_CURRENT_ALPHA:
gtk_color_selection_set_current_alpha (colorsel, g_value_get_uint (value));
break;
+ case PROP_CURRENT_RGBA:
+ gtk_color_selection_set_current_rgba (colorsel, g_value_get_boxed (value));
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
case PROP_CURRENT_ALPHA:
g_value_set_uint (value, gtk_color_selection_get_current_alpha (colorsel));
break;
+ case PROP_CURRENT_RGBA:
+ {
+ GdkRGBA rgba;
+
+ gtk_color_selection_get_current_rgba (colorsel, &rgba);
+ g_value_set_boxed (value, &rgba);
+ }
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
-/* GtkObject methods */
+/* GtkWidget methods */
static void
-gtk_color_selection_destroy (GtkObject *object)
+gtk_color_selection_destroy (GtkWidget *widget)
{
- GtkColorSelection *cselection = GTK_COLOR_SELECTION (object);
+ GtkColorSelection *cselection = GTK_COLOR_SELECTION (widget);
GtkColorSelectionPrivate *priv = cselection->private_data;
if (priv->dropper_grab_widget)
priv->dropper_grab_widget = NULL;
}
- GTK_OBJECT_CLASS (gtk_color_selection_parent_class)->destroy (object);
+ GTK_WIDGET_CLASS (gtk_color_selection_parent_class)->destroy (widget);
}
-/* GtkWidget methods */
-
static void
gtk_color_selection_realize (GtkWidget *widget)
{
*
*/
-static void color_sample_draw_sample (GtkColorSelection *colorsel, int which);
+static void color_sample_draw_sample (GtkColorSelection *colorsel,
+ int which,
+ cairo_t * cr);
static void color_sample_update_samples (GtkColorSelection *colorsel);
static void
{
GtkColorSelection *colorsel = data;
GtkColorSelectionPrivate *priv;
+ gint length;
guint16 *vals;
gdouble color[4];
priv = colorsel->private_data;
* B
* opacity
*/
-
- if (selection_data->length < 0)
+
+ length = gtk_selection_data_get_length (selection_data);
+
+ if (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)
+ if (length != 8)
{
g_warning ("Received invalid color data\n");
return;
}
-
- vals = (guint16 *)selection_data->data;
-
+
+ vals = (guint16 *) gtk_selection_data_get_data (selection_data);
+
if (widget == priv->cur_sample)
{
color[0] = (gdouble)vals[0] / 0xffff;
/* which = 0 means draw old sample, which = 1 means draw new */
static void
-color_sample_draw_sample (GtkColorSelection *colorsel, int which)
+color_sample_draw_sample (GtkColorSelection *colorsel,
+ int which,
+ cairo_t *cr)
{
- GtkAllocation allocation;
GtkWidget *da;
- gint x, y, wid, heig, goff;
+ gint x, y, goff;
GtkColorSelectionPrivate *priv;
- cairo_t *cr;
+ int width, height;
g_return_if_fail (colorsel != NULL);
priv = colorsel->private_data;
goff = old_sample_allocation.width % 32;
}
- cr = gdk_cairo_create (gtk_widget_get_window (da));
-
- gtk_widget_get_allocation (da, &allocation);
- wid = allocation.width;
- heig = allocation.height;
-
/* Below needs tweaking for non-power-of-two */
+ width = gtk_widget_get_allocated_width (da);
+ height = gtk_widget_get_allocated_height (da);
if (priv->has_opacity)
{
/* Draw checks in background */
cairo_set_source_rgb (cr, 0.5, 0.5, 0.5);
- cairo_rectangle (cr, 0, 0, wid, heig);
+ cairo_rectangle (cr, 0, 0, width, height);
cairo_fill (cr);
cairo_set_source_rgb (cr, 0.75, 0.75, 0.75);
- for (x = goff & -CHECK_SIZE; x < goff + wid; x += CHECK_SIZE)
- for (y = 0; y < heig; y += CHECK_SIZE)
+ for (x = goff & -CHECK_SIZE; x < goff + width; x += CHECK_SIZE)
+ for (y = 0; y < height; y += CHECK_SIZE)
if ((x / CHECK_SIZE + y / CHECK_SIZE) % 2 == 0)
cairo_rectangle (cr, x - goff, y, CHECK_SIZE, CHECK_SIZE);
cairo_fill (cr);
priv->color[COLORSEL_OPACITY] : 1.0);
}
- cairo_rectangle (cr, 0, 0, wid, heig);
+ cairo_rectangle (cr, 0, 0, width, height);
cairo_fill (cr);
-
- cairo_destroy (cr);
}
}
static gboolean
-color_old_sample_expose (GtkWidget *da,
- GdkEventExpose *event,
- GtkColorSelection *colorsel)
+color_old_sample_draw (GtkWidget *da,
+ cairo_t *cr,
+ GtkColorSelection *colorsel)
{
- color_sample_draw_sample (colorsel, 0);
+ color_sample_draw_sample (colorsel, 0, cr);
return FALSE;
}
static gboolean
-color_cur_sample_expose (GtkWidget *da,
- GdkEventExpose *event,
- GtkColorSelection *colorsel)
+color_cur_sample_draw (GtkWidget *da,
+ cairo_t *cr,
+ GtkColorSelection *colorsel)
{
- color_sample_draw_sample (colorsel, 1);
+ color_sample_draw_sample (colorsel, 1, cr);
return FALSE;
}
priv = colorsel->private_data;
- priv->sample_area = gtk_hbox_new (FALSE, 0);
+ priv->sample_area = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
priv->old_sample = gtk_drawing_area_new ();
priv->cur_sample = gtk_drawing_area_new ();
gtk_box_pack_start (GTK_BOX (priv->sample_area), priv->cur_sample,
TRUE, TRUE, 0);
- g_signal_connect (priv->old_sample, "expose-event",
- G_CALLBACK (color_old_sample_expose),
+ g_signal_connect (priv->old_sample, "draw",
+ G_CALLBACK (color_old_sample_draw),
colorsel);
- g_signal_connect (priv->cur_sample, "expose-event",
- G_CALLBACK (color_cur_sample_expose),
+ g_signal_connect (priv->cur_sample, "draw",
+ G_CALLBACK (color_cur_sample_draw),
colorsel);
color_sample_setup_dnd (colorsel, priv->old_sample);
color[3] = 1.0;
}
-static void
-palette_paint (GtkWidget *drawing_area,
- GdkRectangle *area,
- gpointer data)
+static gboolean
+palette_draw (GtkWidget *drawing_area,
+ cairo_t *cr,
+ gpointer data)
{
- GdkWindow *window;
- cairo_t *cr;
gint focus_width;
- window = gtk_widget_get_window (drawing_area);
-
- if (window == NULL)
- return;
-
- cr = gdk_cairo_create (window);
-
gdk_cairo_set_source_color (cr, >k_widget_get_style (drawing_area)->bg[GTK_STATE_NORMAL]);
- gdk_cairo_rectangle (cr, area);
- cairo_fill (cr);
+ cairo_paint (cr);
if (gtk_widget_has_focus (drawing_area))
{
- GtkAllocation allocation;
-
set_focus_line_attributes (drawing_area, cr, &focus_width);
- gtk_widget_get_allocation (drawing_area, &allocation);
cairo_rectangle (cr,
focus_width / 2., focus_width / 2.,
- allocation.width - focus_width,
- allocation.height - focus_width);
+ gtk_widget_get_allocated_width (drawing_area) - focus_width,
+ gtk_widget_get_allocated_height (drawing_area) - focus_width);
cairo_stroke (cr);
}
- cairo_destroy (cr);
+ return FALSE;
}
static void
gchar *palette;
settings = gtk_widget_get_settings (GTK_WIDGET (colorsel));
- g_object_get (settings,
- "gtk-color-palette", &palette,
- NULL);
+ g_object_get (settings, "gtk-color-palette", &palette, NULL);
if (!gtk_color_selection_palette_from_string (palette, &colors, &n_colors))
{
- gtk_color_selection_palette_from_string (default_colors, &colors, &n_colors);
+ gtk_color_selection_palette_from_string (DEFAULT_COLOR_PALETTE,
+ &colors,
+ &n_colors);
}
else
{
GdkColor *tmp_colors = colors;
gint tmp_n_colors = n_colors;
- gtk_color_selection_palette_from_string (default_colors, &colors, &n_colors);
+ gtk_color_selection_palette_from_string (DEFAULT_COLOR_PALETTE,
+ &colors,
+ &n_colors);
memcpy (colors, tmp_colors, sizeof (GdkColor) * tmp_n_colors);
g_free (tmp_colors);
}
}
- g_assert (n_colors >= GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT);
+ /* make sure that we fill every slot */
+ g_assert (n_colors == GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT);
g_free (palette);
return colors;
g_object_set_data_full (G_OBJECT (drawing_area), I_("color_val"), new_color, (GDestroyNotify)g_free);
}
-static gboolean
-palette_expose (GtkWidget *drawing_area,
- GdkEventExpose *event,
- gpointer data)
-{
- if (gtk_widget_get_window (drawing_area) == NULL)
- return FALSE;
-
- palette_paint (drawing_area, &(event->area), data);
-
- return FALSE;
-}
-
static void
popup_position_func (GtkMenu *menu,
gint *x,
gdk_window_get_origin (gtk_widget_get_window (widget),
&root_x, &root_y);
- gtk_size_request_get_size (GTK_SIZE_REQUEST (menu),
- &req, NULL);
+ gtk_widget_get_preferred_size (GTK_WIDGET (menu),
+ &req, NULL);
gtk_widget_get_allocation (widget, &allocation);
/* Put corner of menu centered on color cell */
gpointer data)
{
GtkColorSelection *colorsel = GTK_COLOR_SELECTION (data);
+ gint length;
guint16 *vals;
gdouble color[4];
-
- if (selection_data->length < 0)
+
+ length = gtk_selection_data_get_length (selection_data);
+
+ if (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)
+ if (length != 8)
{
g_warning ("Received invalid color data\n");
return;
}
-
- vals = (guint16 *)selection_data->data;
-
+
+ vals = (guint16 *) gtk_selection_data_get_data (selection_data);
+
color[0] = (gdouble)vals[0] / 0xffff;
color[1] = (gdouble)vals[1] / 0xffff;
color[2] = (gdouble)vals[2] / 0xffff;
| GDK_ENTER_NOTIFY_MASK
| GDK_LEAVE_NOTIFY_MASK);
- g_signal_connect (retval, "expose-event",
- G_CALLBACK (palette_expose), colorsel);
+ g_signal_connect (retval, "draw",
+ G_CALLBACK (palette_draw), colorsel);
g_signal_connect (retval, "button-press-event",
G_CALLBACK (palette_press), colorsel);
g_signal_connect (retval, "button-release-event",
priv = colorsel->private_data;
- pixbuf = gdk_pixbuf_get_from_drawable (NULL, root_window, NULL,
- x_root, y_root,
- 0, 0,
- 1, 1);
+ pixbuf = gdk_pixbuf_get_from_window (root_window,
+ x_root, y_root,
+ 1, 1);
if (!pixbuf)
{
gint x, y;
GdkWindow *window = gdk_display_get_window_at_device_position (display, device, &x, &y);
if (!window)
return;
- pixbuf = gdk_pixbuf_get_from_drawable (NULL, window, NULL,
- x, y,
- 0, 0,
- 1, 1);
+ pixbuf = gdk_pixbuf_get_from_window (window,
+ x, y,
+ 1, 1);
if (!pixbuf)
return;
}
device = gtk_get_current_event_device ();
- if (device->source == GDK_SOURCE_KEYBOARD)
+ if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
{
keyb_device = device;
pointer_device = gdk_device_get_associated_device (device);
if (channel_type == COLORSEL_HUE)
{
- adjust = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 360.0, 1.0, 1.0, 0.0));
+ adjust = gtk_adjustment_new (0.0, 0.0, 360.0, 1.0, 1.0, 0.0);
}
else if (channel_type == COLORSEL_SATURATION ||
channel_type == COLORSEL_VALUE)
{
- adjust = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 100.0, 1.0, 1.0, 0.0));
+ adjust = gtk_adjustment_new (0.0, 0.0, 100.0, 1.0, 1.0, 0.0);
}
else
{
- adjust = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 255.0, 1.0, 1.0, 0.0));
+ adjust = gtk_adjustment_new (0.0, 0.0, 255.0, 1.0, 1.0, 0.0);
}
g_object_set_data (G_OBJECT (adjust), I_("COLORSEL"), colorsel);
*spinbutton = gtk_spin_button_new (adjust, 10.0, 0);
return priv->has_opacity ? UNSCALE (priv->old_color[COLORSEL_OPACITY]) : 65535;
}
+/**
+ * gtk_color_selection_set_current_rgba:
+ * @colorsel: a #GtkColorSelection.
+ * @rgba: A #GdkRGBA to set the current color with
+ *
+ * Sets the current color to be @rgba. The first time this is called, it will
+ * also set the original color to be @rgba too.
+ *
+ * Since: 3.0
+ **/
+void
+gtk_color_selection_set_current_rgba (GtkColorSelection *colorsel,
+ const GdkRGBA *rgba)
+{
+ GtkColorSelectionPrivate *priv;
+ gint i;
+
+ g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
+ g_return_if_fail (rgba != NULL);
+
+ priv = colorsel->private_data;
+ priv->changing = TRUE;
+
+ priv->color[COLORSEL_RED] = CLAMP (rgba->red, 0, 1);
+ priv->color[COLORSEL_GREEN] = CLAMP (rgba->green, 0, 1);
+ priv->color[COLORSEL_BLUE] = CLAMP (rgba->blue, 0, 1);
+ priv->color[COLORSEL_OPACITY] = CLAMP (rgba->alpha, 0, 1);
+
+ gtk_rgb_to_hsv (priv->color[COLORSEL_RED],
+ priv->color[COLORSEL_GREEN],
+ priv->color[COLORSEL_BLUE],
+ &priv->color[COLORSEL_HUE],
+ &priv->color[COLORSEL_SATURATION],
+ &priv->color[COLORSEL_VALUE]);
+
+ if (priv->default_set == FALSE)
+ {
+ for (i = 0; i < COLORSEL_NUM_CHANNELS; i++)
+ priv->old_color[i] = priv->color[i];
+ }
+
+ priv->default_set = TRUE;
+ update_color (colorsel);
+}
+
+/**
+ * gtk_color_selection_get_current_rgba:
+ * @colorsel: a #GtkColorSelection.
+ * @rgba: (out): a #GdkRGBA to fill in with the current color.
+ *
+ * Sets @rgba to be the current color in the GtkColorSelection widget.
+ *
+ * Since: 3.0
+ **/
+void
+gtk_color_selection_get_current_rgba (GtkColorSelection *colorsel,
+ GdkRGBA *rgba)
+{
+ GtkColorSelectionPrivate *priv;
+
+ g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
+ g_return_if_fail (rgba != NULL);
+
+ priv = colorsel->private_data;
+ rgba->red = priv->color[COLORSEL_RED];
+ rgba->green = priv->color[COLORSEL_GREEN];
+ rgba->blue = priv->color[COLORSEL_BLUE];
+ rgba->alpha = (priv->has_opacity) ? priv->color[COLORSEL_OPACITY] : 1;
+}
+
+/**
+ * gtk_color_selection_set_previous_rgba:
+ * @colorsel: a #GtkColorSelection.
+ * @rgba: a #GdkRGBA to set the previous color with
+ *
+ * Sets the 'previous' color to be @rgba. This function should be called with
+ * some hesitations, as it might seem confusing to have that color change.
+ * Calling gtk_color_selection_set_current_rgba() will also set this color the first
+ * time it is called.
+ *
+ * Since: 3.0
+ **/
+void
+gtk_color_selection_set_previous_rgba (GtkColorSelection *colorsel,
+ const GdkRGBA *rgba)
+{
+ GtkColorSelectionPrivate *priv;
+
+ g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
+ g_return_if_fail (rgba != NULL);
+
+ priv = colorsel->private_data;
+ priv->changing = TRUE;
+
+ priv->old_color[COLORSEL_RED] = CLAMP (rgba->red, 0, 1);
+ priv->old_color[COLORSEL_GREEN] = CLAMP (rgba->green, 0, 1);
+ priv->old_color[COLORSEL_BLUE] = CLAMP (rgba->blue, 0, 1);
+ priv->old_color[COLORSEL_OPACITY] = CLAMP (rgba->alpha, 0, 1);
+
+ gtk_rgb_to_hsv (priv->old_color[COLORSEL_RED],
+ priv->old_color[COLORSEL_GREEN],
+ priv->old_color[COLORSEL_BLUE],
+ &priv->old_color[COLORSEL_HUE],
+ &priv->old_color[COLORSEL_SATURATION],
+ &priv->old_color[COLORSEL_VALUE]);
+
+ color_sample_update_samples (colorsel);
+ priv->default_set = TRUE;
+ priv->changing = FALSE;
+}
+
+/**
+ * gtk_color_selection_get_previous_rgba:
+ * @colorsel: a #GtkColorSelection.
+ * @rgba: a #GdkRGBA to fill in with the original color value.
+ *
+ * Fills @rgba in with the original color value.
+ *
+ * Since: 3.0
+ **/
+void
+gtk_color_selection_get_previous_rgba (GtkColorSelection *colorsel,
+ GdkRGBA *rgba)
+{
+ GtkColorSelectionPrivate *priv;
+
+ g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
+ g_return_if_fail (rgba != NULL);
+
+ priv = colorsel->private_data;
+ rgba->red = priv->old_color[COLORSEL_RED];
+ rgba->green = priv->old_color[COLORSEL_GREEN];
+ rgba->blue = priv->old_color[COLORSEL_BLUE];
+ rgba->alpha = (priv->has_opacity) ? priv->old_color[COLORSEL_OPACITY] : 1;
+}
+
/**
* gtk_color_selection_set_palette_color:
* @colorsel: a #GtkColorSelection.
projects / ~andy / gtk / blobdiff