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GtkColorSelection: Add API to deal with GdkRGBA.

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The hook to change the global palette is still unchanged, it is quite
tied to GdkColor and the color format used to store the palette in
GtkSettings.
This commit is contained in:
Carlos Garnacho 2010-10-22 17:56:21 +02:00
parent e351a48d6a
commit cb5b74e9c6
3 changed files with 178 additions and 2 deletions
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4
docs/reference/gtk/gtk3-sections.txt
View File

@ -728,6 +728,10 @@ gtk_color_selection_get_previous_alpha
gtk_color_selection_set_previous_alpha
gtk_color_selection_get_previous_color
gtk_color_selection_set_previous_color
gtk_color_selection_get_current_rgba
gtk_color_selection_set_current_rgba
gtk_color_selection_get_previous_rgba
gtk_color_selection_set_previous_rgba
gtk_color_selection_is_adjusting
gtk_color_selection_palette_from_string
gtk_color_selection_palette_to_string

167
gtk/gtkcolorsel.c
View File

@ -102,7 +102,8 @@ enum {
PROP_HAS_PALETTE,
PROP_HAS_OPACITY_CONTROL,
PROP_CURRENT_COLOR,
PROP_CURRENT_ALPHA
PROP_CURRENT_ALPHA,
PROP_CURRENT_RGBA
};
enum {
@ -332,7 +333,22 @@ gtk_color_selection_class_init (GtkColorSelectionClass *klass)
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));
color_selection_signals[COLOR_CHANGED] =
g_signal_new (I_("color-changed"),
G_OBJECT_CLASS_TYPE (gobject_class),
@ -560,6 +576,9 @@ gtk_color_selection_set_property (GObject *object,
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;
@ -591,6 +610,14 @@ gtk_color_selection_get_property (GObject *object,
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;
@ -2633,6 +2660,142 @@ gtk_color_selection_get_previous_alpha (GtkColorSelection *colorsel)
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.

9
gtk/gtkcolorsel.h
View File

@ -104,6 +104,15 @@ void gtk_color_selection_get_previous_color (GtkColorSelection *colorsel,
GdkColor *color);
guint16 gtk_color_selection_get_previous_alpha (GtkColorSelection *colorsel);
void gtk_color_selection_set_current_rgba (GtkColorSelection *colorsel,
const GdkRGBA *rgba);
void gtk_color_selection_get_current_rgba (GtkColorSelection *colorsel,
GdkRGBA *rgba);
void gtk_color_selection_set_previous_rgba (GtkColorSelection *colorsel,
const GdkRGBA *rgba);
void gtk_color_selection_get_previous_rgba (GtkColorSelection *colorsel,
GdkRGBA *rgba);
gboolean gtk_color_selection_is_adjusting (GtkColorSelection *colorsel);
gboolean gtk_color_selection_palette_from_string (const gchar *str,