/**
* gimp_color_selection_set_show_alpha:
* @selection: A #GimpColorSelection widget.
* @show_alpha: The new @show_alpha setting.
*
* Sets the @show_alpha property of the @selection widget.
**/
void
gimp_color_selection_set_show_alpha (GimpColorSelection *selection,
gboolean show_alpha)
{
g_return_if_fail (GIMP_IS_COLOR_SELECTION (selection));
if (show_alpha != selection->show_alpha)
{
selection->show_alpha = show_alpha ? TRUE : FALSE;
gimp_color_selector_set_show_alpha
(GIMP_COLOR_SELECTOR (selection->notebook), selection->show_alpha);
gimp_color_selector_set_show_alpha
(GIMP_COLOR_SELECTOR (selection->scales), selection->show_alpha);
gimp_color_area_set_type (GIMP_COLOR_AREA (selection->new_color),
selection->show_alpha ?
GIMP_COLOR_AREA_SMALL_CHECKS :
GIMP_COLOR_AREA_FLAT);
gimp_color_area_set_type (GIMP_COLOR_AREA (selection->old_color),
selection->show_alpha ?
GIMP_COLOR_AREA_SMALL_CHECKS :
GIMP_COLOR_AREA_FLAT);
}
}
static void
gimp_color_history_color_changed (GtkWidget *widget,
gpointer data)
{
GimpRGB changed_color;
gint color_index;
GList *list;
gimp_color_area_get_color (GIMP_COLOR_AREA (widget), &changed_color);
color_index = GPOINTER_TO_INT (data);
color_history_set (color_index, &changed_color);
for (list = color_dialogs; list; list = g_list_next (list))
{
GimpColorDialog *dialog = list->data;
if (dialog->history[color_index] != widget)
{
g_signal_handlers_block_by_func (dialog->history[color_index],
gimp_color_history_color_changed,
data);
gimp_color_area_set_color
(GIMP_COLOR_AREA (dialog->history[color_index]), &changed_color);
g_signal_handlers_unblock_by_func (dialog->history[color_index],
gimp_color_history_color_changed,
data);
}
}
}
/**
* gimp_color_selection_set_config:
* @selection: A #GimpColorSelection widget.
* @config: A #GimpColorConfig object.
*
* Sets the color management configuration to use with this color selection.
*
* Since: 2.4
*/
void
gimp_color_selection_set_config (GimpColorSelection *selection,
GimpColorConfig *config)
{
g_return_if_fail (GIMP_IS_COLOR_SELECTION (selection));
g_return_if_fail (config == NULL || GIMP_IS_COLOR_CONFIG (config));
gimp_color_selector_set_config (GIMP_COLOR_SELECTOR (selection->notebook),
config);
gimp_color_selector_set_config (GIMP_COLOR_SELECTOR (selection->scales),
config);
gimp_color_area_set_color_config (GIMP_COLOR_AREA (selection->old_color),
config);
gimp_color_area_set_color_config (GIMP_COLOR_AREA (selection->new_color),
config);
}
void
gimp_color_frame_set_color_config (GimpColorFrame *frame,
GimpColorConfig *config)
{
g_return_if_fail (GIMP_IS_COLOR_FRAME (frame));
g_return_if_fail (config == NULL || GIMP_IS_COLOR_CONFIG (config));
if (config != frame->config)
{
if (frame->config)
{
g_signal_handlers_disconnect_by_func (frame->config,
gimp_color_frame_destroy_transform,
frame);
g_object_unref (frame->config);
gimp_color_frame_destroy_transform (frame);
}
frame->config = config;
if (frame->config)
{
g_object_ref (frame->config);
g_signal_connect_swapped (frame->config, "notify",
G_CALLBACK (gimp_color_frame_destroy_transform),
frame);
}
gimp_color_area_set_color_config (GIMP_COLOR_AREA (frame->color_area),
config);
}
}
static void
hue_saturation_update_color_areas (GimpHueSaturationTool *hs_tool)
{
static GimpRGB default_colors[6] =
{
{ 1.0, 0, 0, },
{ 1.0, 1.0, 0, },
{ 0, 1.0, 0, },
{ 0, 1.0, 1.0, },
{ 0, 0, 1.0, },
{ 1.0, 0, 1.0, }
};
gint i;
for (i = 0; i < 6; i++)
{
GimpRGB color = default_colors[i];
gimp_operation_hue_saturation_map (hs_tool->config, &color, i + 1,
&color);
gimp_color_area_set_color (GIMP_COLOR_AREA (hs_tool->hue_range_color_area[i]),
&color);
}
}
/**
* gimp_color_button_has_alpha:
* @button: Pointer to a #GimpColorButton.
*
* Checks whether the @buttons shows transparency information.
*
* Returns: %TRUE if the @button shows transparency information, %FALSE
* otherwise.
**/
gboolean
gimp_color_button_has_alpha (GimpColorButton *button)
{
g_return_val_if_fail (GIMP_IS_COLOR_BUTTON (button), FALSE);
return gimp_color_area_has_alpha (GIMP_COLOR_AREA (button->color_area));
}
static void
gimp_color_area_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GimpColorArea *area = GIMP_COLOR_AREA (widget);
GimpRGB color;
guint16 *vals;
if (selection_data->length < 0)
return;
if ((selection_data->format != 16) ||
(selection_data->length != 8))
{
g_warning ("Received invalid color data");
return;
}
vals = (guint16 *)selection_data->data;
gimp_rgba_set (&color,
(gdouble) vals[0] / 0xffff,
(gdouble) vals[1] / 0xffff,
(gdouble) vals[2] / 0xffff,
(gdouble) vals[3] / 0xffff);
gimp_color_area_set_color (area, &color);
}
static void
gimp_color_area_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpColorArea *area = GIMP_COLOR_AREA (object);
switch (property_id)
{
case PROP_COLOR:
g_value_set_boxed (value, &area->color);
break;
case PROP_TYPE:
g_value_set_enum (value, area->type);
break;
case PROP_DRAW_BORDER:
g_value_set_boolean (value, area->draw_border);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_color_area_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GimpColorArea *area = GIMP_COLOR_AREA (widget);
const guint16 *vals;
GimpRGB color;
if (gtk_selection_data_get_length (selection_data) != 8 ||
gtk_selection_data_get_format (selection_data) != 16)
{
g_warning ("%s: received invalid color data", G_STRFUNC);
return;
}
vals = (const guint16 *) gtk_selection_data_get_data (selection_data);
gimp_rgba_set (&color,
(gdouble) vals[0] / 0xffff,
(gdouble) vals[1] / 0xffff,
(gdouble) vals[2] / 0xffff,
(gdouble) vals[3] / 0xffff);
gimp_color_area_set_color (area, &color);
}
/**
* gimp_color_button_get_color:
* @button: Pointer to a #GimpColorButton.
* @color: Pointer to a #GimpRGB struct used to return the color.
*
* Retrieves the currently set color from the @button.
**/
void
gimp_color_button_get_color (GimpColorButton *button,
GimpRGB *color)
{
g_return_if_fail (GIMP_IS_COLOR_BUTTON (button));
g_return_if_fail (color != NULL);
gimp_color_area_get_color (GIMP_COLOR_AREA (button->color_area), color);
}
/**
* gimp_color_selection_get_old_color:
* @selection: A #GimpColorSelection widget.
* @color: Return location for the @selection's old @color.
*
* This function returns the #GimpColorSelection's old color.
**/
void
gimp_color_selection_get_old_color (GimpColorSelection *selection,
GimpRGB *color)
{
g_return_if_fail (GIMP_IS_COLOR_SELECTION (selection));
g_return_if_fail (color != NULL);
gimp_color_area_get_color (GIMP_COLOR_AREA (selection->old_color), color);
}
/**
* gimp_color_button_set_type:
* @button: Pointer to a #GimpColorButton.
* @type: the new #GimpColorAreaType
*
* Sets the @button to the given @type. See also gimp_color_area_set_type().
**/
void
gimp_color_button_set_type (GimpColorButton *button,
GimpColorAreaType type)
{
g_return_if_fail (GIMP_IS_COLOR_BUTTON (button));
gimp_color_area_set_type (GIMP_COLOR_AREA (button->color_area), type);
g_object_notify (G_OBJECT (button), "type");
}
/**
* gimp_color_selection_reset:
* @selection: A #GimpColorSelection widget.
*
* Sets the #GimpColorSelection's current color to its old color.
**/
void
gimp_color_selection_reset (GimpColorSelection *selection)
{
GimpRGB color;
g_return_if_fail (GIMP_IS_COLOR_SELECTION (selection));
gimp_color_area_get_color (GIMP_COLOR_AREA (selection->old_color), &color);
gimp_color_selection_set_color (selection, &color);
}
/**
* gimp_color_button_set_color:
* @button: Pointer to a #GimpColorButton.
* @color: Pointer to the new #GimpRGB color.
*
* Sets the @button to the given @color.
**/
void
gimp_color_button_set_color (GimpColorButton *button,
const GimpRGB *color)
{
g_return_if_fail (GIMP_IS_COLOR_BUTTON (button));
g_return_if_fail (color != NULL);
gimp_color_area_set_color (GIMP_COLOR_AREA (button->color_area), color);
g_object_notify (G_OBJECT (button), "color");
}
static void
gimp_color_selection_new_color_changed (GtkWidget *widget,
GimpColorSelection *selection)
{
gimp_color_area_get_color (GIMP_COLOR_AREA (widget), &selection->rgb);
gimp_rgb_to_hsv (&selection->rgb, &selection->hsv);
gimp_color_selection_update (selection,
UPDATE_NOTEBOOK | UPDATE_SCALES | UPDATE_ENTRY);
gimp_color_selection_color_changed (selection);
}
static void
gimp_color_area_drag_begin (GtkWidget *widget,
GdkDragContext *context)
{
GimpRGB color;
GtkWidget *window;
GtkWidget *frame;
GtkWidget *color_area;
window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_type_hint (GTK_WINDOW (window), GDK_WINDOW_TYPE_HINT_DND);
gtk_window_set_screen (GTK_WINDOW (window), gtk_widget_get_screen (widget));
gtk_widget_realize (window);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
gtk_container_add (GTK_CONTAINER (window), frame);
gimp_color_area_get_color (GIMP_COLOR_AREA (widget), &color);
color_area = gimp_color_area_new (&color,
GIMP_COLOR_AREA (widget)->type,
0);
gtk_widget_set_size_request (color_area,
DRAG_PREVIEW_SIZE, DRAG_PREVIEW_SIZE);
gtk_container_add (GTK_CONTAINER (frame), color_area);
gtk_widget_show (color_area);
gtk_widget_show (frame);
g_object_set_data_full (G_OBJECT (widget),
"gimp-color-area-drag-window",
window,
(GDestroyNotify) gtk_widget_destroy);
gtk_drag_set_icon_widget (context, window,
DRAG_ICON_OFFSET, DRAG_ICON_OFFSET);
}
static void
gimp_color_area_state_changed (GtkWidget *widget,
GtkStateType previous_state)
{
if (widget->state == GTK_STATE_INSENSITIVE ||
previous_state == GTK_STATE_INSENSITIVE)
{
GIMP_COLOR_AREA (widget)->needs_render = TRUE;
}
if (GTK_WIDGET_CLASS (parent_class)->state_changed)
GTK_WIDGET_CLASS (parent_class)->state_changed (widget, previous_state);
}
static void
gimp_color_area_finalize (GObject *object)
{
GimpColorArea *area = GIMP_COLOR_AREA (object);
if (area->buf)
{
g_free (area->buf);
area->buf = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_color_history_color_clicked (GtkWidget *widget,
GimpColorDialog *dialog)
{
GimpColorArea *color_area;
GimpRGB color;
color_area = GIMP_COLOR_AREA (gtk_bin_get_child (GTK_BIN (widget)));
gimp_color_area_get_color (color_area, &color);
gimp_color_selection_set_color (GIMP_COLOR_SELECTION (dialog->selection),
&color);
}
static void
gimp_color_history_color_clicked (GtkWidget *widget,
GimpColorHistory *history)
{
GimpColorArea *color_area;
GimpRGB color;
color_area = GIMP_COLOR_AREA (gtk_bin_get_child (GTK_BIN (widget)));
gimp_color_area_get_color (color_area, &color);
g_signal_emit (history, history_signals[COLOR_SELECTED], 0,
&color);
}
static void
gimp_color_history_color_changed (GtkWidget *widget,
gpointer data)
{
GimpColorHistory *history;
GimpPalette *palette;
GimpRGB color;
history = GIMP_COLOR_HISTORY (gtk_widget_get_ancestor (widget,
GIMP_TYPE_COLOR_HISTORY));
palette = gimp_palettes_get_color_history (history->context->gimp);
gimp_color_area_get_color (GIMP_COLOR_AREA (widget), &color);
gimp_palette_set_entry_color (palette, GPOINTER_TO_INT (data), &color);
}
static gboolean
gimp_color_area_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GimpColorArea *area = GIMP_COLOR_AREA (widget);
GtkStyle *style = gtk_widget_get_style (widget);
cairo_t *cr;
cairo_surface_t *buffer;
if (! area->buf || ! gtk_widget_is_drawable (widget))
return FALSE;
if (area->needs_render)
gimp_color_area_render (area);
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
buffer = cairo_image_surface_create_for_data (area->buf,
CAIRO_FORMAT_RGB24,
area->width,
area->height,
area->rowstride);
cairo_set_source_surface (cr, buffer, 0.0, 0.0);
cairo_surface_destroy (buffer);
cairo_paint (cr);
if (area->draw_border)
{
cairo_set_line_width (cr, 1.0);
gdk_cairo_set_source_color (cr,
&style->fg[gtk_widget_get_state (widget)]);
cairo_rectangle (cr, 0.5, 0.5, area->width - 1, area->height - 1);
cairo_stroke (cr);
}
cairo_destroy (cr);
return FALSE;
}
static void
gimp_color_history_add_clicked (GtkWidget *widget,
GimpColorDialog *dialog)
{
GimpRGB color;
gint shift_begin;
gint i;
gimp_color_selection_get_color (GIMP_COLOR_SELECTION (dialog->selection),
&color);
shift_begin = color_history_add (&color);
for (i = shift_begin; i >= 0; i--)
{
color_history_get (i, &color);
gimp_color_area_set_color (GIMP_COLOR_AREA (dialog->history[i]), &color);
}
}
static void
gimp_color_picker_tool_info_update (GimpColorPickerTool *picker_tool,
GimpImageType sample_type,
const GimpRGB *color,
gint color_index)
{
gimp_color_area_set_color (GIMP_COLOR_AREA (picker_tool->color_area),
color);
gimp_color_frame_set_color (GIMP_COLOR_FRAME (picker_tool->color_frame1),
sample_type, color, color_index);
gimp_color_frame_set_color (GIMP_COLOR_FRAME (picker_tool->color_frame2),
sample_type, color, color_index);
/* don't use gtk_window_present() because it would focus the dialog */
if (gtk_widget_get_visible (picker_tool->dialog))
gdk_window_show (gtk_widget_get_window (picker_tool->dialog));
else
gtk_widget_show (picker_tool->dialog);
}
static WidgetInfo *
create_color_area (void)
{
GtkWidget *vbox;
GtkWidget *area;
GtkWidget *align;
GimpRGB color;
color_init (&color);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
align = gtk_alignment_new (0.5, 0.5, 0.5, 1.0);
area = gimp_color_area_new (&color, GIMP_COLOR_AREA_SMALL_CHECKS, 0);
gimp_color_area_set_draw_border (GIMP_COLOR_AREA (area), TRUE);
gtk_widget_set_size_request (area, -1, 25);
gtk_container_add (GTK_CONTAINER (align), area);
gtk_box_pack_start (GTK_BOX (vbox), align, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (vbox),
gtk_label_new ("Color Area"), FALSE, FALSE, 0);
return new_widget_info ("gimp-widget-color-area", vbox, SMALL);
}
static void
gimp_color_area_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpColorArea *area = GIMP_COLOR_AREA (object);
GdkModifierType drag_mask;
switch (property_id)
{
case PROP_COLOR:
gimp_color_area_set_color (area, g_value_get_boxed (value));
break;
case PROP_TYPE:
gimp_color_area_set_type (area, g_value_get_enum (value));
break;
case PROP_DRAG_MASK:
drag_mask = g_value_get_flags (value) & (GDK_BUTTON1_MASK |
GDK_BUTTON2_MASK |
GDK_BUTTON3_MASK);
if (drag_mask)
gtk_drag_source_set (GTK_WIDGET (area),
drag_mask,
&target, 1,
GDK_ACTION_COPY | GDK_ACTION_MOVE);
break;
case PROP_DRAW_BORDER:
gimp_color_area_set_draw_border (area, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_color_button_selection_changed (GtkWidget *selection,
GimpColorButton *button)
{
if (button->continuous_update)
{
GimpRGB color;
gimp_color_selection_get_color (GIMP_COLOR_SELECTION (selection), &color);
g_signal_handlers_block_by_func (button->color_area,
gimp_color_button_area_changed,
button);
gimp_color_area_set_color (GIMP_COLOR_AREA (button->color_area), &color);
g_signal_handlers_unblock_by_func (button->color_area,
gimp_color_button_area_changed,
button);
g_signal_emit (button, gimp_color_button_signals[COLOR_CHANGED], 0);
}
}
static void
gimp_color_history_palette_dirty (GimpPalette *palette,
GimpColorHistory *history)
{
gint i;
for (i = 0; i < history->history_size; i++)
{
GimpPaletteEntry *entry = gimp_palette_get_entry (palette, i);
GimpRGB black = { 0.0, 0.0, 0.0, 1.0 };
g_signal_handlers_block_by_func (history->color_areas[i],
gimp_color_history_color_changed,
GINT_TO_POINTER (i));
gimp_color_area_set_color (GIMP_COLOR_AREA (history->color_areas[i]),
entry ? &entry->color : &black);
g_signal_handlers_unblock_by_func (history->color_areas[i],
gimp_color_history_color_changed,
GINT_TO_POINTER (i));
}
}
static void
gimp_color_area_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GimpColorArea *area = GIMP_COLOR_AREA (widget);
if (GTK_WIDGET_CLASS (parent_class)->size_allocate)
GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
if (widget->allocation.width != area->width ||
widget->allocation.height != area->height)
{
area->width = widget->allocation.width;
area->height = widget->allocation.height;
area->rowstride = (area->width * 3 + 3) & ~0x3;
g_free (area->buf);
area->buf = g_new (guchar, area->rowstride * area->height);
area->needs_render = TRUE;
}
}
static void
gimp_color_area_drag_data_get (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time)
{
GimpColorArea *area = GIMP_COLOR_AREA (widget);
guint16 vals[4];
vals[0] = area->color.r * 0xffff;
vals[1] = area->color.g * 0xffff;
vals[2] = area->color.b * 0xffff;
if (area->type == GIMP_COLOR_AREA_FLAT)
vals[3] = 0xffff;
else
vals[3] = area->color.a * 0xffff;
gtk_selection_data_set (selection_data,
gdk_atom_intern ("application/x-color", FALSE),
16, (guchar *) vals, 8);
}