libs/gtkmm2ext/cell_renderer_color_selector.cc

   1 /*
   2     Copyright (C) 2011 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18     $Id: cell_renderer_toggle_pixbuf.cc $
  19 */
  20
  21 #include <iostream>
  22 #include <gtkmm.h>
  23
  24 #include "gtkmm2ext/cell_renderer_color_selector.h"
  25 #include "gtkmm2ext/utils.h"
  26
  27 using namespace std;
  28 using namespace Gtk;
  29 using namespace Gdk;
  30 using namespace Glib;
  31 using namespace Gtkmm2ext;
  32
  33
  34 CellRendererColorSelector::CellRendererColorSelector()
  35         : Glib::ObjectBase (typeid(CellRendererColorSelector) )
  36         , Gtk::CellRenderer()
  37         , _property_color (*this, "color")
  38 {
  39         property_mode() = Gtk::CELL_RENDERER_MODE_ACTIVATABLE;
  40         property_sensitive() = false;
  41         property_xpad() = 2;
  42         property_ypad() = 2;
  43
  44         Gdk::Color c;
  45
  46         c.set_red (0);
  47         c.set_green (0);
  48         c.set_blue (0);
  49
  50         property_color() = c;
  51 }
  52
  53 CellRendererColorSelector::~CellRendererColorSelector ()
  54 {
  55 }
  56
  57 Glib::PropertyProxy<Gdk::Color>
  58 CellRendererColorSelector::property_color()
  59 {
  60         return _property_color.get_proxy();
  61 }
  62
  63 void
  64 CellRendererColorSelector::render_vfunc (const Glib::RefPtr<Gdk::Drawable>& window, Gtk::Widget& /*widget*/, const Gdk::Rectangle& /*background_area*/, const Gdk::Rectangle& cell_area, const Gdk::Rectangle& expose_area, Gtk::CellRendererState /*flags*/)
  65 {
  66         Gdk::Color c = _property_color.get_value();
  67
  68         if (c.gobj() != 0) {
  69
  70                 cairo_t* cr = gdk_cairo_create (window->gobj());
  71                 double r, g, b;
  72                 Gdk::Color c = _property_color.get_value();
  73
  74                 cairo_rectangle (cr, expose_area.get_x(), expose_area.get_y(), expose_area.get_width(), expose_area.get_height());
  75                 cairo_clip (cr);
  76
  77                 r = c.get_red_p();
  78                 g = c.get_green_p();
  79                 b = c.get_blue_p();
  80
  81                 cairo_rectangle_t drawing_rect;
  82
  83                 drawing_rect.x = cell_area.get_x() + property_xpad();
  84                 drawing_rect.y = cell_area.get_y() + property_ypad();
  85                 drawing_rect.width = cell_area.get_width() - (2 * property_xpad());
  86                 drawing_rect.height = cell_area.get_height() - (2 * property_ypad());
  87
  88                 Gtkmm2ext::rounded_rectangle (cr, drawing_rect.x, drawing_rect.y, drawing_rect.width, drawing_rect.height, 5);
  89                 cairo_set_source_rgb (cr, r, g, b);
  90                 cairo_fill (cr);
  91
  92                 cairo_destroy (cr);
  93         }
  94 }
  95