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79469940bc
mutter/clutter/clutter-rectangle.c
Matthew Allum 79469940bc 2007-04-27 Matthew Allum <mallum@openedhand.com> 
* clutter/Makefile.am:
        * clutter/clutter-actor.c:
        * clutter/clutter-clone-texture.c:
        * clutter/clutter-rectangle.c:
        * clutter/clutter-stage.c:
        * clutter/clutter-texture.c:
        * clutter/cogl/cogl.h:
        * clutter/cogl/gl/Makefile.am:
        * clutter/cogl/gl/cogl-defines.h:
        * clutter/cogl/gl/cogl.c:
        * clutter/cogl/gles/Makefile.am:
        * clutter/cogl/gles/cogl-defines.h:
        * clutter/cogl/gles/cogl.c:
        * clutter/glx/Makefile.am:
        * clutter/glx/clutter-stage-glx.c:
        * clutter/pango/Makefile.am:
        * clutter/pango/pangoclutter-render.c:
        * configure.ac:
        Add initial 'cogl' implementation. 'cogl' is a simple abstration
        layer over GL and GL/ES used by clutter internally. It should
        eventually allow clutter applications to be run on both GL and GL/ES
        with just a recompile as well as provide more debugging and potentially
        profiling information for GL and GL/ES usage.

        This commit contains the initial GL implementation.
2007-04-27 21:13:06 +00:00

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/*
* Clutter.
*
* An OpenGL based 'interactive canvas' library.
*
* Authored By Matthew Allum <mallum@openedhand.com>
*
* Copyright (C) 2006 OpenedHand
*
* 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 library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:clutter-rectangle
* @short_description: An actor that displays simple rectangles.
*
* #ClutterRectangle is an Actor which draws simple filled rectangles.
*/
#include "clutter-rectangle.h"
#include "clutter-main.h"
#include "clutter-private.h"
#include "clutter-debug.h"
#include "cogl.h"
G_DEFINE_TYPE (ClutterRectangle, clutter_rectangle, CLUTTER_TYPE_ACTOR);
enum
{
PROP_0,
PROP_COLOR,
PROP_BORDER_COLOR,
PROP_BORDER_WIDTH,
PROP_HAS_BORDER
/* FIXME: Add gradient, rounded corner props etc */
};
#define CLUTTER_RECTANGLE_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), CLUTTER_TYPE_RECTANGLE, ClutterRectanglePrivate))
struct _ClutterRectanglePrivate
{
ClutterColor color;
ClutterColor border_color;
guint border_width;
guint has_border : 1;
};
static void
clutter_rectangle_paint (ClutterActor *self)
{
ClutterRectangle *rectangle = CLUTTER_RECTANGLE(self);
ClutterRectanglePrivate *priv;
ClutterGeometry geom;
ClutterColor tmp_col;
rectangle = CLUTTER_RECTANGLE(self);
priv = rectangle->priv;
CLUTTER_NOTE (PAINT,
"painting rect '%s'",
clutter_actor_get_name (self) ? clutter_actor_get_name (self)
: "unknown");
cogl_push_matrix();
cogl_enable (CGL_BLEND);
clutter_actor_get_geometry (self, &geom);
/* parent paint call will have translated us into position so
* paint from 0, 0
*/
if (priv->has_border)
{
tmp_col.red = priv->border_color.red;
tmp_col.green = priv->border_color.green;
tmp_col.blue = priv->border_color.blue;
tmp_col.alpha = clutter_actor_get_opacity (self);
cogl_color (&tmp_col);
/* this sucks, but it's the only way to make a border */
cogl_rectangle (0, 0,
geom.width, priv->border_width);
cogl_rectangle (geom.width - priv->border_width, priv->border_width,
geom.width, geom.height - priv->border_width);
cogl_rectangle (0, geom.height - priv->border_width,
geom.width, geom.height);
cogl_rectangle (0, priv->border_width,
priv->border_width, geom.height - priv->border_width);
tmp_col.red = priv->color.red;
tmp_col.green = priv->color.green;
tmp_col.blue = priv->color.blue;
cogl_color (&tmp_col);
cogl_rectangle (priv->border_width,
priv->border_width,
geom.width - priv->border_width,
geom.height - priv->border_width);
}
else
{
tmp_col.red = priv->color.red;
tmp_col.green = priv->color.green;
tmp_col.blue = priv->color.blue;
tmp_col.alpha = clutter_actor_get_opacity (self);
cogl_color (&tmp_col);
cogl_rectangle (0, 0, geom.width, geom.height);
}
cogl_push_matrix();
}
static void
clutter_rectangle_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
ClutterRectangle *rectangle = CLUTTER_RECTANGLE(object);
switch (prop_id)
{
case PROP_COLOR:
clutter_rectangle_set_color (rectangle, g_value_get_boxed (value));
break;
case PROP_BORDER_COLOR:
clutter_rectangle_set_border_color (rectangle,
g_value_get_boxed (value));
break;
case PROP_BORDER_WIDTH:
clutter_rectangle_set_border_width (rectangle,
g_value_get_uint (value));
break;
case PROP_HAS_BORDER:
rectangle->priv->has_border = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
clutter_rectangle_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
ClutterRectangle *rectangle = CLUTTER_RECTANGLE(object);
ClutterColor color;
switch (prop_id)
{
case PROP_COLOR:
clutter_rectangle_get_color (rectangle, &color);
g_value_set_boxed (value, &color);
break;
case PROP_BORDER_COLOR:
clutter_rectangle_get_border_color (rectangle, &color);
g_value_set_boxed (value, &color);
break;
case PROP_BORDER_WIDTH:
g_value_set_uint (value, rectangle->priv->border_width);
break;
case PROP_HAS_BORDER:
g_value_set_boolean (value, rectangle->priv->has_border);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
clutter_rectangle_finalize (GObject *object)
{
G_OBJECT_CLASS (clutter_rectangle_parent_class)->finalize (object);
}
static void
clutter_rectangle_dispose (GObject *object)
{
G_OBJECT_CLASS (clutter_rectangle_parent_class)->dispose (object);
}
static void
clutter_rectangle_class_init (ClutterRectangleClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
actor_class->paint = clutter_rectangle_paint;
gobject_class->finalize = clutter_rectangle_finalize;
gobject_class->dispose = clutter_rectangle_dispose;
gobject_class->set_property = clutter_rectangle_set_property;
gobject_class->get_property = clutter_rectangle_get_property;
/**
* ClutterRectangle:color:
*
* The color of the rectangle.
*/
g_object_class_install_property (gobject_class,
PROP_COLOR,
g_param_spec_boxed ("color",
"Color",
"The color of the rectangle",
CLUTTER_TYPE_COLOR,
CLUTTER_PARAM_READWRITE));
/**
* ClutterRectangle:border-color:
*
* The color of the border of the rectangle.
*
* Since: 0.2
*/
g_object_class_install_property (gobject_class,
PROP_BORDER_COLOR,
g_param_spec_boxed ("border-color",
"Border Color",
"The color of the border of the rectangle",
CLUTTER_TYPE_COLOR,
CLUTTER_PARAM_READWRITE));
/**
* ClutterRectangle:border-width:
*
* The width of the border of the rectangle, in pixels.
*
* Since: 0.2
*/
g_object_class_install_property (gobject_class,
PROP_BORDER_WIDTH,
g_param_spec_uint ("border-width",
"Border Width",
"The width of the border of the rectangle",
0, G_MAXUINT,
0,
CLUTTER_PARAM_READWRITE));
/**
* ClutterRectangle:has-border:
*
* Whether the #ClutterRectangle should be displayed with a border.
*
* Since: 0.2
*/
g_object_class_install_property (gobject_class,
PROP_HAS_BORDER,
g_param_spec_boolean ("has-border",
"Has Border",
"Whether the rectangle should have a border",
FALSE,
CLUTTER_PARAM_READWRITE));
g_type_class_add_private (gobject_class, sizeof (ClutterRectanglePrivate));
}
static void
clutter_rectangle_init (ClutterRectangle *self)
{
ClutterRectanglePrivate *priv;
self->priv = priv = CLUTTER_RECTANGLE_GET_PRIVATE (self);
priv->color.red = 0xff;
priv->color.green = 0xff;
priv->color.blue = 0xff;
priv->color.alpha = 0xff;
priv->border_color.red = 0x00;
priv->border_color.green = 0x00;
priv->border_color.blue = 0x00;
priv->border_color.alpha = 0xff;
priv->border_width = 0;
priv->has_border = FALSE;
}
/**
* clutter_rectangle_new:
*
* Creates a new #ClutterActor with a rectangular shape.
*
* Return value: a new #ClutterActor
*/
ClutterActor*
clutter_rectangle_new (void)
{
return g_object_new (CLUTTER_TYPE_RECTANGLE, NULL);
}
/**
* clutter_rectangle_new_with_color:
* @color: a #ClutterColor
*
* Creates a new #ClutterActor with a rectangular shape
* and with @color.
*
* Return value: a new #ClutterActor
*/
ClutterActor *
clutter_rectangle_new_with_color (const ClutterColor *color)
{
return g_object_new (CLUTTER_TYPE_RECTANGLE,
"color", color,
NULL);
}
/**
* clutter_rectangle_get_color:
* @rectangle: a #ClutterRectangle
* @color: return location for a #ClutterColor
*
* Retrieves the color of @rectangle.
*/
void
clutter_rectangle_get_color (ClutterRectangle *rectangle,
ClutterColor *color)
{
ClutterRectanglePrivate *priv;
g_return_if_fail (CLUTTER_IS_RECTANGLE (rectangle));
g_return_if_fail (color != NULL);
priv = rectangle->priv;
color->red = priv->color.red;
color->green = priv->color.green;
color->blue = priv->color.blue;
color->alpha = priv->color.alpha;
}
/**
* clutter_rectangle_set_color:
* @rectangle: a #ClutterRectangle
* @color: a #ClutterColor
*
* Sets the color of @rectangle.
*/
void
clutter_rectangle_set_color (ClutterRectangle *rectangle,
const ClutterColor *color)
{
ClutterRectanglePrivate *priv;
g_return_if_fail (CLUTTER_IS_RECTANGLE (rectangle));
g_return_if_fail (color != NULL);
g_object_ref (rectangle);
priv = rectangle->priv;
priv->color.red = color->red;
priv->color.green = color->green;
priv->color.blue = color->blue;
priv->color.alpha = color->alpha;
clutter_actor_set_opacity (CLUTTER_ACTOR (rectangle),
priv->color.alpha);
if (clutter_color_equal (&priv->color, &priv->border_color))
priv->has_border = FALSE;
else
priv->has_border = TRUE;
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR (rectangle)))
clutter_actor_queue_redraw (CLUTTER_ACTOR (rectangle));
g_object_notify (G_OBJECT (rectangle), "color");
g_object_notify (G_OBJECT (rectangle), "has-border");
g_object_unref (rectangle);
}
/**
* clutter_rectangle_get_border_width:
* @rectangle: a #ClutterRectangle
*
* Gets the width (in pixels) of the border used by @rectangle
*
* Return value: the border's width
*
* Since: 0.2
*/
guint
clutter_rectangle_get_border_width (ClutterRectangle *rectangle)
{
g_return_val_if_fail (CLUTTER_IS_RECTANGLE (rectangle), 0);
return rectangle->priv->border_width;
}
/**
* clutter_rectangle_set_border_width:
* @rectangle: a #ClutterRectangle
* @width: the width of the border
*
* Sets the width (in pixel) of the border used by @rectangle.
* A @width of 0 will unset the border.
*
* Since: 0.2
*/
void
clutter_rectangle_set_border_width (ClutterRectangle *rectangle,
guint width)
{
ClutterRectanglePrivate *priv;
g_return_if_fail (CLUTTER_IS_RECTANGLE (rectangle));
priv = rectangle->priv;
if (priv->border_width != width)
{
g_object_ref (rectangle);
priv->border_width = width;
if (priv->border_width != 0)
priv->has_border = TRUE;
else
priv->has_border = FALSE;
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR (rectangle)))
clutter_actor_queue_redraw (CLUTTER_ACTOR (rectangle));
g_object_notify (G_OBJECT (rectangle), "border-width");
g_object_notify (G_OBJECT (rectangle), "has-border");
g_object_unref (rectangle);
}
}
/**
* clutter_rectangle_get_border_color:
* @rectangle: a #ClutterRectangle
* @color: return location for a #ClutterColor
*
* Gets the color of the border used by @rectangle and places
* it into @color.
*
* Since: 0.2
*/
void
clutter_rectangle_get_border_color (ClutterRectangle *rectangle,
ClutterColor *color)
{
ClutterRectanglePrivate *priv;
g_return_if_fail (CLUTTER_IS_RECTANGLE (rectangle));
g_return_if_fail (color != NULL);
priv = rectangle->priv;
color->red = priv->border_color.red;
color->green = priv->border_color.green;
color->blue = priv->border_color.blue;
color->alpha = priv->border_color.alpha;
}
/**
* clutter_rectangle_set_border_color:
* @rectangle: a #ClutterRectangle
* @color: the color of the border
*
* Sets the color of the border used by @rectangle using @color
*/
void
clutter_rectangle_set_border_color (ClutterRectangle *rectangle,
const ClutterColor *color)
{
ClutterRectanglePrivate *priv;
g_return_if_fail (CLUTTER_IS_RECTANGLE (rectangle));
g_return_if_fail (color != NULL);
priv = rectangle->priv;
if (priv->border_color.red != color->red &&
priv->border_color.green != color->green &&
priv->border_color.blue != color->blue &&
priv->border_color.alpha != color->alpha)
{
g_object_ref (rectangle);
priv->border_color.red = color->red;
priv->border_color.green = color->green;
priv->border_color.blue = color->blue;
priv->border_color.alpha = color->alpha;
if (clutter_color_equal (&priv->color, &priv->border_color))
priv->has_border = FALSE;
else
priv->has_border = TRUE;
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR (rectangle)))
clutter_actor_queue_redraw (CLUTTER_ACTOR (rectangle));
g_object_notify (G_OBJECT (rectangle), "border-color");
g_object_notify (G_OBJECT (rectangle), "has-border");
g_object_unref (rectangle);
}
}
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