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/*
Copyright 2010 Canonical Ltd.
Authors:
Conor Curran <conor.curran@canonical.com>
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License version 3, as published
by the Free Software Foundation.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranties of
MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <math.h>
#include "play-button.h"
typedef struct _PlayButtonPrivate PlayButtonPrivate;
struct _PlayButtonPrivate
{
GdkColor background_colour_fg;
GdkColor background_colour_bg_dark;
GdkColor background_colour_bg_light;
GdkColor foreground_colour_fg;
GdkColor foreground_colour_bg;
};
#define PLAY_BUTTON_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), PLAY_BUTTON_TYPE, PlayButtonPrivate))
/* Gobject boiler plate */
static void play_button_class_init (PlayButtonClass *klass);
static void play_button_init (PlayButton *self);
static void play_button_dispose (GObject *object);
static void play_button_finalize (GObject *object);
static gboolean play_button_expose (GtkWidget *button, GdkEventExpose *event);
static void draw (GtkWidget* button, cairo_t *cr);
static void play_button_draw_background(GtkWidget* button, cairo_t* cr, double x, double y, double width, double height, double p_radius);
static void play_button_draw_background_shadow_2(GtkWidget* button, cairo_t* cr, double x, double y, double rect_width, double rect_height, double p_radius);
static void play_button_draw_background_shadow_1(GtkWidget* button, cairo_t* cr, double x, double y, double rect_width, double rect_height, double p_radius);
//static void play_button_draw_play_symbol(cairo_t* cr, double x, double y);
static void play_button_draw_pause_symbol(cairo_t* cr, double x, double y);
static void play_button_draw_previous_symbol(cairo_t* cr, double x, double y);
G_DEFINE_TYPE (PlayButton, play_button, GTK_TYPE_DRAWING_AREA);
static void
play_button_class_init (PlayButtonClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GtkWidgetClass* widget_class = GTK_WIDGET_CLASS (klass);
g_type_class_add_private (klass, sizeof (PlayButtonPrivate));
widget_class->expose_event = play_button_expose;
gobject_class->dispose = play_button_dispose;
gobject_class->finalize = play_button_finalize;
}
static void
play_button_init (PlayButton *self)
{
g_debug("PlayButton::play_button_init");
gtk_widget_set_size_request(GTK_WIDGET(self), 200, 80);
}
static void
play_button_dispose (GObject *object)
{
G_OBJECT_CLASS (play_button_parent_class)->dispose (object);
}
static void
play_button_finalize (GObject *object)
{
G_OBJECT_CLASS (play_button_parent_class)->finalize (object);
}
static gboolean
play_button_expose (GtkWidget *button, GdkEventExpose *event)
{
cairo_t *cr;
cr = gdk_cairo_create (button->window);
g_debug("PlayButton::Draw - width = %i", button->allocation.width);
g_debug("PlayButton::Draw - event->area.width = %i", event->area.width);
g_debug("PlayButton::Draw - event->area.x = %i", event->area.x);
cairo_rectangle (cr,
event->area.x, event->area.y,
event->area.width, event->area.height);
cairo_clip(cr);
draw (button, cr);
cairo_destroy (cr);
return FALSE;
}
void
play_button_set_style(GtkWidget* button, GtkStyle* style)
{
PlayButtonPrivate* priv = PLAY_BUTTON_GET_PRIVATE(button);
priv->background_colour_fg = style->fg[GTK_STATE_NORMAL];
priv->background_colour_bg_dark = style->bg[GTK_STATE_NORMAL];
priv->background_colour_bg_light = style->base[GTK_STATE_NORMAL];
priv->foreground_colour_fg = style->fg[GTK_STATE_PRELIGHT];
priv->foreground_colour_bg = style->bg[GTK_STATE_NORMAL];
}
static void
draw (GtkWidget* button, cairo_t *cr)
{
//PlayButtonPrivate* priv = PLAY_BUTTON_GET_PRIVATE(button);
double rect_width = 115;
double rect_height = 28;
double p_radius = 21;
double y = 15;
double x = 22;
//double radius=35;
//double x= button->allocation.width/2 - rect_width/2;
//double y= button->allocation.height/2 -rect_height/2;
// Draw the outside drop shadow background
play_button_draw_background_shadow_1(button, cr, x, y, rect_width, rect_height, p_radius);
// Draw the inside drop shadow background
gint offset = 4;
play_button_draw_background_shadow_2(button, cr, x + offset-1, y + offset/2, rect_width-offset, rect_height-offset, p_radius-(offset/2));
offset = 5;
// Draw the inside actual background
play_button_draw_background(button, cr, x+offset-1, y + offset/2+1, rect_width-offset, rect_height-offset, p_radius-offset/2);
play_button_draw_pause_symbol(cr, rect_width/2 + rect_height/10 + x -1 + offset/2, rect_height/5 +y );
play_button_draw_pause_symbol(cr, rect_width/2 + rect_height/10 + x + offset/2 + 10, rect_height/5 +y );
play_button_draw_previous_symbol(cr, x+rect_height/2 + offset, y + offset+2);
cairo_surface_write_to_png(cairo_get_target (cr), "/tmp/foobar.png");
}
static void
play_button_draw_previous_symbol(cairo_t* cr, double x, double y)
{
gint line_width = 2;
cairo_set_line_width (cr, line_width);
gint shape_height = 15;
gint shape_width = 22;
gint single_arrow_width=16;
cairo_pattern_t *pat;
pat = cairo_pattern_create_linear (x, y, x, y+shape_height);
cairo_pattern_add_color_stop_rgb(pat, 0, 227/255.0, 222/255.0, 214/255.0);
cairo_pattern_add_color_stop_rgb(pat, .1, 207/255.0, 201/255.0, 190/255.0);
cairo_pattern_add_color_stop_rgb(pat, .4, 123/255.0, 123/255.0, 120/255.0);
cairo_set_source (cr, pat);
cairo_move_to(cr, x, y);
cairo_rel_line_to (cr, 0, shape_height);
cairo_stroke(cr);
cairo_move_to (cr, x+line_width, y+shape_height/2);
cairo_line_to (cr, x+single_arrow_width, y);
cairo_line_to (cr, x+single_arrow_width, y+shape_height);
cairo_line_to (cr, x+line_width, y+shape_height/2);
cairo_fill(cr);
cairo_pattern_destroy (pat);
cairo_close_path(cr);
}
static void
play_button_draw_pause_symbol(cairo_t* cr, double x, double y)
{
cairo_set_line_width (cr, 7);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_move_to (cr, x, y);
cairo_rel_line_to (cr, 0, 18);
//cairo_set_source_rgb(cr, 94/255.0, 93/255.0, 90/255.0);
cairo_pattern_t *pat;
pat = cairo_pattern_create_linear (x, y, x, y+16);
cairo_pattern_add_color_stop_rgb(pat, 0, 227/255.0, 222/255.0, 214/255.0);
cairo_pattern_add_color_stop_rgb(pat, .1, 207/255.0, 201/255.0, 190/255.0);
cairo_pattern_add_color_stop_rgb(pat, .6, 123/255.0, 123/255.0, 120/255.0);
cairo_set_source (cr, pat);
cairo_stroke(cr);
cairo_close_path(cr);
cairo_set_line_width (cr, 5.5);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_move_to (cr, x, y+0.75);
cairo_rel_line_to (cr, 0, 16.5);
pat = cairo_pattern_create_linear (x+1, y+1, x+1, y+16);
cairo_pattern_add_color_stop_rgb(pat, .3, 252/255.0, 252/255.0, 251/255.0);
cairo_pattern_add_color_stop_rgb(pat, .8, 227/255.0, 222/255.0, 214/255.0);
//cairo_pattern_add_color_stop_rgb(pat, .9, 207/255.0, 201/255.0, 190/255.0);
cairo_set_source (cr, pat);
cairo_stroke(cr);
cairo_close_path(cr);
cairo_pattern_destroy (pat);
}
static void
play_button_draw_background(GtkWidget* button, cairo_t* cr, double x, double y, double rect_width, double rect_height, double p_radius)
{
double radius=rect_height/2;
cairo_set_line_width (cr, rect_height);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_move_to(cr, x+radius, y+radius);
cairo_line_to(cr, x+rect_width, y+radius);
cairo_pattern_t *pat;
pat = cairo_pattern_create_linear (x, y, x, y+rect_height);
cairo_pattern_add_color_stop_rgb(pat, .5, 225/255.0, 218/255.0, 211/255.0);
cairo_pattern_add_color_stop_rgb(pat, .7, 197/255.0, 192/255.0, 185/255.0);
cairo_pattern_add_color_stop_rgb(pat, .9, 185/255.0, 179/255.0, 173/255.0);
cairo_set_source (cr, pat);
cairo_stroke (cr);
cairo_close_path(cr);
cairo_arc(cr, rect_width/2 + radius/2 + x + 2, rect_height/2 +y, p_radius, 0, 2*M_PI);
cairo_set_source (cr, pat);
cairo_fill(cr);
cairo_close_path(cr);
cairo_arc(cr, rect_width/2 + radius/2 + x + 2, rect_height/2 +y, p_radius, 0, 2*M_PI);
cairo_set_source_rgb(cr, 94/255.0, 93/255.0, 90/255.0);
cairo_set_line_width (cr, 0.75);
cairo_stroke(cr);
cairo_close_path(cr);
cairo_pattern_destroy (pat);
}
static void
play_button_draw_background_shadow_1(GtkWidget* button, cairo_t* cr, double x, double y, double rect_width, double rect_height, double p_radius)
{
double radius=rect_height/2;
cairo_set_line_width (cr, rect_height);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_move_to(cr, x+radius, y+radius);
cairo_line_to(cr, x+rect_width, y+radius);
cairo_pattern_t *pat;
pat = cairo_pattern_create_linear (x, y, x, y+rect_height);
cairo_pattern_add_color_stop_rgb(pat, .4, 36/255.0, 35/255.0, 33/255.0);
cairo_pattern_add_color_stop_rgb(pat, .7, 123/255.0, 123/255.0, 120/255.0);
cairo_set_source (cr, pat);
cairo_stroke (cr);
cairo_close_path(cr);
cairo_arc(cr, rect_width/2 + radius/2 + x + 2, rect_height/2 +y, p_radius, 0, 2*M_PI);
pat = cairo_pattern_create_linear ((rect_width/2 + radius/2 + x), rect_height/2 + y-p_radius, (rect_width/2 + radius/2 + x), rect_height+(p_radius-rect_height/2));
cairo_pattern_add_color_stop_rgb(pat, .4, 36/255.0, 35/255.0, 33/255.0);
cairo_pattern_add_color_stop_rgb(pat, .7, 123/255.0, 123/255.0, 120/255.0);
cairo_set_source (cr, pat);
cairo_fill(cr);
cairo_close_path(cr);
cairo_pattern_destroy (pat);
}
static void
play_button_draw_background_shadow_2(GtkWidget* button, cairo_t* cr, double x, double y, double rect_width, double rect_height, double p_radius)
{
double radius=rect_height/2;
cairo_set_line_width (cr, rect_height);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_move_to(cr, x+radius, y+radius);
cairo_line_to(cr, x+rect_width, y+radius);
cairo_pattern_t *pat;
pat = cairo_pattern_create_linear (x, y, x, y+rect_height);
cairo_pattern_add_color_stop_rgb(pat, .4, 61/255.0, 60/255.0, 57/255.0);
cairo_pattern_add_color_stop_rgb(pat, .7, 94/255.0, 93/255.0, 90/255.0);
cairo_set_source (cr, pat);
cairo_stroke (cr);
cairo_close_path(cr);
cairo_arc(cr, rect_width/2 + radius/2 + x + 2, rect_height/2 +y, p_radius, 0, 2*M_PI);
pat = cairo_pattern_create_linear ((rect_width/2 + radius/2 + x), rect_height/2 + y-p_radius, (rect_width/2 + radius/2 + x), rect_height+(p_radius-rect_height/2));
cairo_pattern_add_color_stop_rgb(pat, .4, 61/255.0, 60/255.0, 57/255.0);
cairo_pattern_add_color_stop_rgb(pat, .7, 94/255.0, 93/255.0, 90/255.0);
cairo_set_source (cr, pat);
cairo_fill(cr);
cairo_close_path(cr);
cairo_pattern_destroy (pat);
}
/**
* play_button_new:
* @returns: a new #PlayButton.
**/
GtkWidget*
play_button_new()
{
GtkWidget* widget = g_object_new(PLAY_BUTTON_TYPE, NULL);
gtk_widget_set_app_paintable (widget, TRUE);
return widget;
}
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