libegg/egg-cell-renderer-text.c

   1 /* egg-cell-renderer-text.c
   2  * Copyright (C) 2002  Andreas J. Guelzow <aguelzow@taliesin.ca>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library 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 GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA 02110-1301, USA.
  18  */
  19
  20 #include <gtk/gtk.h>
  21 #include <gdk/gdkx.h>
  22 #include "egg-cell-renderer-text.h"
  23
  24 static void egg_cell_renderer_text_class_init
  25                                    (EggCellRendererTextClass *cell_text_class);
  26 static void egg_cell_renderer_text_render     (GtkCellRenderer          *cell,
  27                                                GdkWindow                *window,
  28                                                GtkWidget                *widget,
  29                                                GdkRectangle             *background_area,
  30                                                GdkRectangle             *cell_area,
  31                                                GdkRectangle             *expose_area,
  32                                                guint                     flags);
  33
  34 static GtkCellRendererTextClass *parent_class = NULL;
  35
  36 GType
  37 egg_cell_renderer_text_get_type (void)
  38 {
  39   static GType cell_text_type = 0;
  40
  41   if (!cell_text_type)
  42     {
  43       static const GTypeInfo cell_text_info =
  44       {
  45         sizeof (EggCellRendererTextClass),
  46         NULL,           /* base_init */
  47         NULL,           /* base_finalize */
  48         (GClassInitFunc)egg_cell_renderer_text_class_init,
  49         NULL,           /* class_finalize */
  50         NULL,           /* class_data */
  51         sizeof (GtkCellRendererText),
  52         0,              /* n_preallocs */
  53         (GInstanceInitFunc) NULL,
  54       };
  55
  56       cell_text_type = g_type_register_static (GTK_TYPE_CELL_RENDERER_TEXT, "EggCellRendererText", &cell_text_info, 0);
  57     }
  58
  59   return cell_text_type;
  60 }
  61
  62 static void
  63 egg_cell_renderer_text_class_init (EggCellRendererTextClass *class)
  64 {
  65         GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS  (class);
  66         GObjectClass *object_class = G_OBJECT_CLASS (class);
  67
  68         parent_class = g_type_class_peek_parent (object_class);
  69
  70         cell_class->render = egg_cell_renderer_text_render;
  71
  72 }
  73
  74
  75 GtkCellRenderer *
  76 egg_cell_renderer_text_new (void)
  77 {
  78   return GTK_CELL_RENDERER (g_object_new (EGG_TYPE_CELL_RENDERER_TEXT, NULL));
  79 }
  80 static void
  81 egg_cell_renderer_text_render (GtkCellRenderer    *cell,
  82                                GdkWindow          *window,
  83                                GtkWidget          *widget,
  84                                GdkRectangle       *background_area,
  85                                GdkRectangle       *cell_area,
  86                                GdkRectangle       *expose_area,
  87                                guint               flags)
  88
  89 {
  90         GtkCellRendererText *celltext = (GtkCellRendererText *) cell;
  91         GtkStateType state;
  92
  93         if ((flags & GTK_CELL_RENDERER_SELECTED) == GTK_CELL_RENDERER_SELECTED)
  94         {
  95                 if (GTK_WIDGET_HAS_FOCUS (widget))
  96                         state = GTK_STATE_SELECTED;
  97                 else
  98                         state = GTK_STATE_ACTIVE;
  99         }
 100         else
 101         {
 102                 if (GTK_WIDGET_STATE (widget) == GTK_STATE_INSENSITIVE)
 103                         state = GTK_STATE_INSENSITIVE;
 104                 else
 105                         state = GTK_STATE_NORMAL;
 106         }
 107
 108         if ( state == GTK_STATE_SELECTED  && celltext->background_set)
 109         {
 110                 GdkColor color;
 111                 GdkGC *gc;
 112
 113                 color.red = celltext->background.red;
 114                 color.green = celltext->background.green;
 115                 color.blue = celltext->background.blue;
 116
 117                 gc = gdk_gc_new (window);
 118
 119                 gdk_gc_set_rgb_fg_color (gc, &color);
 120
 121                 gdk_draw_rectangle (window,
 122                                     gc,
 123                                     TRUE,
 124                                     background_area->x,
 125                                     background_area->y + cell->ypad,
 126                                     background_area->width,
 127                                     background_area->height - 2 * cell->ypad);
 128
 129                 g_object_unref (G_OBJECT (gc));
 130         }
 131
 132         GTK_CELL_RENDERER_CLASS (parent_class)->render (cell, window, widget, background_area,
 133                                cell_area, expose_area, flags);
 134 }