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/*
* Copyright (C) 2009 Rodney Cryderman <rcryderman@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*
*/
/**
* SECTION: awn-overlay-progress-circle
* @short_description: Circle Progress overlay for use with #AwnIcon.
* @see_also: #AwnEffects, #AwnOverlay, #AwnOverlayThemedIcon, #AwnOverlayThrobber,
* #AwnOverlayPixbuf, #AwnOverlayPixbufFile, #AwnIcon, #AwnOverlayProgress
* @stability: Unstable
* @include: libawn/libawn.h
*
* Circle Progress overlay used with #AwnIcon.
*/
/**
* AwnOverlayProgressCircle:
*
* Circle Progress overlay used with #AwnIcon.
*/
/* awn-overlay-progress-circle.c */
#include <math.h>
#include "awn-cairo-utils.h"
#include "awn-overlay-progress-circle.h"
extern "C" {
G_DEFINE_TYPE(AwnOverlayProgressCircle, awn_overlay_progress_circle, AWN_TYPE_OVERLAY_PROGRESS)
}
#define AWN_OVERLAY_PROGRESS_CIRCLE_GET_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE ((o), AWN_TYPE_OVERLAY_PROGRESS_CIRCLE, AwnOverlayProgressCirclePrivate))
typedef struct _AwnOverlayProgressCirclePrivate AwnOverlayProgressCirclePrivate;
struct _AwnOverlayProgressCirclePrivate {
DesktopAgnosticColor* bg_color;
DesktopAgnosticColor* fg_color;
DesktopAgnosticColor* outline_color;
gdouble scale;
};
enum {
PROP_0,
PROP_SCALE,
PROP_BACKGROUND_COLOR,
PROP_FOREGROUND_COLOR,
PROP_OUTLINE_COLOR
};
static void
_awn_overlay_progress_circle_render(AwnOverlay* _overlay,
GtkWidget* widget,
cairo_t* cr,
gint width,
gint height);
static void
awn_overlay_progress_circle_get_property(GObject* object, guint property_id,
GValue* value, GParamSpec* pspec)
{
AwnOverlayProgressCirclePrivate* priv = AWN_OVERLAY_PROGRESS_CIRCLE_GET_PRIVATE(object);
switch (property_id) {
case PROP_SCALE:
g_value_set_double(value, priv->scale);
break;
case PROP_FOREGROUND_COLOR:
g_value_set_object(value, priv->fg_color);
break;
case PROP_BACKGROUND_COLOR:
g_value_set_object(value, priv->bg_color);
break;
case PROP_OUTLINE_COLOR:
g_value_set_object(value, priv->outline_color);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
}
}
static void
awn_overlay_progress_circle_set_property(GObject* object, guint property_id,
const GValue* value, GParamSpec* pspec)
{
AwnOverlayProgressCirclePrivate* priv = AWN_OVERLAY_PROGRESS_CIRCLE_GET_PRIVATE(object);
switch (property_id) {
case PROP_SCALE:
priv->scale = g_value_get_double(value);
break;
case PROP_FOREGROUND_COLOR:
if (priv->fg_color) {
g_object_unref(priv->fg_color);
}
priv->fg_color = g_value_get_object(value);
break;
case PROP_BACKGROUND_COLOR:
if (priv->bg_color) {
g_object_unref(priv->bg_color);
}
priv->bg_color = g_value_get_object(value);
break;
case PROP_OUTLINE_COLOR:
if (priv->outline_color) {
g_object_unref(priv->outline_color);
}
priv->outline_color = g_value_get_object(value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, property_id, pspec);
}
}
static void
awn_overlay_progress_circle_dispose(GObject* object)
{
G_OBJECT_CLASS(awn_overlay_progress_circle_parent_class)->dispose(object);
}
static void
awn_overlay_progress_circle_finalize(GObject* object)
{
G_OBJECT_CLASS(awn_overlay_progress_circle_parent_class)->finalize(object);
}
static void
awn_overlay_progress_circle_class_init(AwnOverlayProgressCircleClass* klass)
{
GObjectClass* object_class = G_OBJECT_CLASS(klass);
object_class->get_property = awn_overlay_progress_circle_get_property;
object_class->set_property = awn_overlay_progress_circle_set_property;
object_class->dispose = awn_overlay_progress_circle_dispose;
object_class->finalize = awn_overlay_progress_circle_finalize;
AWN_OVERLAY_CLASS(klass)->render = _awn_overlay_progress_circle_render;
/**
* AwnOverlayProgressCircle:scale:
*
* The desired size of the overlay scaled to the Icon. Range 0.0...1.0. Default
* value of 0.9
*/
g_object_class_install_property(object_class,
PROP_SCALE,
g_param_spec_double("scale",
"Scale",
"Scale",
0.0, 1.0, 0.9,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
/**
* AwnOverlayProgressCircle:background-color:
*
* Overlay background color of type #DesktopAgnosticColor.
*/
g_object_class_install_property(object_class,
PROP_BACKGROUND_COLOR,
g_param_spec_object("background-color",
"Background Color",
"Background Color",
DESKTOP_AGNOSTIC_TYPE_COLOR,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
/**
* AwnOverlayProgressCircle:foreground-color:
*
* Overlay foregroundground color of type #DesktopAgnosticColor.
*/
g_object_class_install_property(object_class,
PROP_FOREGROUND_COLOR,
g_param_spec_object("foreground-color",
"Foreground Color",
"Foreground Color",
DESKTOP_AGNOSTIC_TYPE_COLOR,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
/**
* AwnOverlayProgressCircle:outline-color:
*
* Overlay outline color of type #DesktopAgnosticColor.
*/
g_object_class_install_property(object_class,
PROP_OUTLINE_COLOR,
g_param_spec_object("outline-color",
"Outline Color",
"Outline Color",
DESKTOP_AGNOSTIC_TYPE_COLOR,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT |
G_PARAM_STATIC_STRINGS));
g_type_class_add_private(klass, sizeof(AwnOverlayProgressCirclePrivate));
}
static void
awn_overlay_progress_circle_init(AwnOverlayProgressCircle* self)
{
}
/**
* awn_overlay_progress_circle_new:
*
* Creates a new instance of #AwnOverlayProgressCircle.
* Returns: an instance of #AwnOverlayProgressCircle.
*/
AwnOverlayProgressCircle*
awn_overlay_progress_circle_new(void)
{
return g_object_new(AWN_TYPE_OVERLAY_PROGRESS_CIRCLE, NULL);
}
static void
_awn_overlay_progress_circle_render(AwnOverlay* _overlay,
GtkWidget* widget,
cairo_t* cr,
gint width,
gint height)
{
AwnOverlayProgressCircle* overlay = AWN_OVERLAY_PROGRESS_CIRCLE(_overlay);
AwnOverlayProgressCirclePrivate* priv;
DesktopAgnosticColor* fg_color;
DesktopAgnosticColor* bg_color;
DesktopAgnosticColor* outline_color;
gdouble percent_complete, x_pos, y_pos;
AwnOverlayCoord coord;
priv = AWN_OVERLAY_PROGRESS_CIRCLE_GET_PRIVATE(overlay);
g_object_get(overlay,
"percent-complete", &percent_complete,
NULL);
if (priv->fg_color) {
fg_color = priv->fg_color;
g_object_ref(fg_color);
} else {
fg_color = desktop_agnostic_color_new(&widget->style->bg[GTK_STATE_ACTIVE],
0.7 * G_MAXUSHORT);
}
if (priv->bg_color) {
bg_color = priv->bg_color;
g_object_ref(bg_color);
} else {
bg_color = desktop_agnostic_color_new(&widget->style->fg[GTK_STATE_ACTIVE],
0.2 * G_MAXUSHORT);
}
if (priv->outline_color) {
outline_color = priv->outline_color;
g_object_ref(outline_color);
} else {
outline_color = desktop_agnostic_color_new(&widget->style->fg[GTK_STATE_ACTIVE],
G_MAXUSHORT);
}
awn_overlay_move_to(_overlay, cr, width, height,
width * priv->scale, height * priv->scale,
&coord);
x_pos = coord.x / width + priv->scale / 2.0;
y_pos = coord.y / height + priv->scale / 2.0;
cairo_save(cr);
cairo_scale(cr, width, height);
cairo_set_line_width(cr, 2. / (width + height));
awn_cairo_set_source_color(cr, bg_color);
cairo_arc(cr, x_pos, y_pos, priv->scale / 2.0, 0, 2 * M_PI);
cairo_fill(cr);
cairo_arc(cr, x_pos, y_pos, priv->scale / 2.0, -0.5 * M_PI,
2 * (percent_complete / 100.0) * M_PI - 0.5 * M_PI);
cairo_line_to(cr, x_pos, y_pos);
cairo_close_path(cr);
awn_cairo_set_source_color(cr, fg_color);
cairo_fill(cr);
if (percent_complete > 0) {
cairo_arc(cr, x_pos, y_pos, priv->scale / 2.0, -0.5 * M_PI,
2 * (percent_complete / 100.0) * M_PI - 0.5 * M_PI);
if (percent_complete < 100) {
cairo_line_to(cr, x_pos, y_pos);
cairo_close_path(cr);
}
awn_cairo_set_source_color(cr, outline_color);
cairo_stroke(cr);
}
cairo_restore(cr);
g_object_unref(fg_color);
g_object_unref(bg_color);
g_object_unref(outline_color);
}
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