Dogcows Code - chaz/tint2/blob - src/tint2conf/theme_view.c

   1
   2 #include "theme_view.h"
   3
   4
   5 GtkListStore *g_store;
   6
   7 // Some boring function declarations: GObject type system stuff
   8 static void custom_cell_renderer_theme_init(CustomCellRendererTheme *cellprogress);
   9 static void custom_cell_renderer_theme_class_init(CustomCellRendererThemeClass *klass);
  10 static void custom_cell_renderer_theme_finalize(GObject *gobject);
  11 static void custom_cell_renderer_theme_get_property(GObject *object, guint param_id, GValue *value, GParamSpec *pspec);
  12 static void custom_cell_renderer_theme_set_property(GObject *object, guint param_id, const GValue *value, GParamSpec *pspec);
  13
  14
  15 // These functions are the heart of our custom cell renderer:
  16 static void custom_cell_renderer_theme_get_size(GtkCellRenderer *cell, GtkWidget *widget, GdkRectangle *cell_area, gint *x_offset, gint *y_offset, gint *width, gint *height);
  17 static void custom_cell_renderer_theme_render(GtkCellRenderer *cell, GdkWindow *window, GtkWidget *widget, GdkRectangle *background_area, GdkRectangle *cell_area, GdkRectangle *expose_area, guint flags);
  18
  19
  20 static gpointer parent_class;
  21
  22 enum { PROP_TITLE = 1, };
  23
  24
  25
  26
  27 GtkWidget *create_view_and_model(void)
  28 {
  29         GtkTreeViewColumn *col;
  30         GtkCellRenderer *renderer;
  31         GtkWidget  *view;
  32         GtkTreeSelection *sel;
  33         GtkTreeIter iter;
  34
  35         g_store = gtk_list_store_new(N_COLUMNS, G_TYPE_STRING);
  36         view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(g_store));
  37         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(view), FALSE);
  38
  39         g_object_unref(g_store); // destroy store automatically with view
  40 /*
  41         renderer = gtk_cell_renderer_text_new();
  42         col = gtk_tree_view_column_new_with_attributes("Deb", renderer, "title", COL_TEXT, NULL);
  43         gtk_tree_view_append_column(GTK_TREE_VIEW(view), col);
  44 */
  45         renderer = g_object_new(CUSTOM_TYPE_CELL_RENDERER_THEME, NULL);
  46         col = gtk_tree_view_column_new();
  47         gtk_tree_view_column_pack_start (col, renderer, TRUE);
  48         gtk_tree_view_column_add_attribute (col, renderer, "title", COL_TEXT);
  49         gtk_tree_view_append_column(GTK_TREE_VIEW(view),col);
  50
  51         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(view));
  52         gtk_tree_selection_set_mode(GTK_TREE_SELECTION(sel), GTK_SELECTION_SINGLE);
  53         g_signal_connect(sel, "changed",        G_CALLBACK(on_changed), NULL);
  54
  55         return view;
  56 }
  57
  58
  59 void on_changed(GtkWidget *widget, gpointer label)
  60 {
  61         GtkTreeIter iter;
  62         GtkTreeModel *model;
  63         char *value;
  64
  65         if (gtk_tree_selection_get_selected(GTK_TREE_SELECTION(widget), &model, &iter)) {
  66                 gtk_tree_model_get(model, &iter, COL_TEXT, &value,  -1);
  67                 //gtk_label_set_text(GTK_LABEL(label), value);
  68                 g_free(value);
  69         }
  70
  71 }
  72
  73
  74 void add_to_list(GtkWidget *list, const gchar *str)
  75 {
  76         GtkTreeIter iter;
  77
  78         gtk_list_store_append(g_store, &iter);
  79         gtk_list_store_set(g_store, &iter, COL_TEXT, str, -1);
  80         //gtk_list_store_set (g_store, &iter, COL_TEXT, buf, -1);
  81 }
  82
  83
  84 /***************************************************************************
  85 *  custom_cell_renderer_theme_get_type: here we register our type with
  86 *                                          the GObject type system if we
  87 *                                          haven't done so yet. Everything
  88 *                                          else is done in the callbacks.
  89 ***************************************************************************/
  90
  91 GType custom_cell_renderer_theme_get_type (void)
  92 {
  93         static GType cell_type = 0;
  94
  95         if (cell_type == 0) {
  96                 static const GTypeInfo cell_info =
  97                 {
  98                 sizeof (CustomCellRendererThemeClass),
  99                 NULL,                                                     // base_init
 100                 NULL,                                                     // base_finalize
 101                 (GClassInitFunc) custom_cell_renderer_theme_class_init,
 102                 NULL,                                                     // class_finalize
 103                 NULL,                                                     // class_data
 104                 sizeof (CustomCellRendererTheme),
 105                 0,                                                        // n_preallocs
 106                 (GInstanceInitFunc) custom_cell_renderer_theme_init,
 107                 };
 108
 109                 // Derive from GtkCellRenderer
 110                 cell_type = g_type_register_static(GTK_TYPE_CELL_RENDERER, "CustomCellRendererTheme", &cell_info, 0);
 111         }
 112
 113         return cell_type;
 114 }
 115
 116
 117 static void custom_cell_renderer_theme_init(CustomCellRendererTheme *celltheme)
 118 {
 119         // set some default properties
 120         GTK_CELL_RENDERER(celltheme)->mode = GTK_CELL_RENDERER_MODE_INERT;
 121         GTK_CELL_RENDERER(celltheme)->xpad = 2;
 122         GTK_CELL_RENDERER(celltheme)->ypad = 2;
 123         celltheme->title = 0;
 124         printf("custom_cell_renderer_theme_init\n\n");
 125
 126 }
 127
 128
 129 /***************************************************************************
 130 *  custom_cell_renderer_theme_class_init:
 131 *
 132 *  set up our own get_property and set_property functions, and
 133 *  override the parent's functions that we need to implement.
 134 *  And make our new "percentage" property known to the type system.
 135 *  If you want cells that can be activated on their own (ie. not
 136 *  just the whole row selected) or cells that are editable, you
 137 *  will need to override 'activate' and 'start_editing' as well.
 138 ***************************************************************************/
 139
 140 static void custom_cell_renderer_theme_class_init(CustomCellRendererThemeClass *klass)
 141 {
 142         GtkCellRendererClass *cell_class   = GTK_CELL_RENDERER_CLASS(klass);
 143         GObjectClass *object_class = G_OBJECT_CLASS(klass);
 144
 145         parent_class = g_type_class_peek_parent (klass);
 146         object_class->finalize = custom_cell_renderer_theme_finalize;
 147
 148         object_class->get_property = custom_cell_renderer_theme_get_property;
 149         object_class->set_property = custom_cell_renderer_theme_set_property;
 150
 151         // Override the two crucial functions that are the heart of a cell renderer in the parent class
 152         cell_class->get_size = custom_cell_renderer_theme_get_size;
 153         cell_class->render = custom_cell_renderer_theme_render;
 154
 155 printf("custom_class_init\n\n");
 156
 157         // Install our very own properties
 158         g_object_class_install_property (object_class, PROP_TITLE, g_param_spec_string("title", "Title", "Theme's title", 0, G_PARAM_READWRITE));
 159 //      g_object_class_install_property (object_class, PROP_PERCENTAGE, g_param_spec_double ("percentage", "Percentage", "The fractional progress to display", 0, 1, 0, G_PARAM_READWRITE));
 160 }
 161
 162
 163 static void custom_cell_renderer_theme_finalize(GObject *object)
 164 {
 165         CustomCellRendererTheme *celltheme = CUSTOM_CELL_RENDERER_THEME(object);
 166
 167         // free any resources here
 168         //if (celltheme->title)
 169         //g_free(celltheme->title);
 170
 171         // Free any dynamically allocated resources here
 172         (* G_OBJECT_CLASS (parent_class)->finalize) (object);
 173 }
 174
 175
 176 static void custom_cell_renderer_theme_get_property(GObject *object, guint param_id, GValue *value, GParamSpec *psec)
 177 {
 178         CustomCellRendererTheme  *celltheme = CUSTOM_CELL_RENDERER_THEME(object);
 179
 180         switch (param_id) {
 181                 case PROP_TITLE:
 182                 g_value_set_string(value, celltheme->title);
 183                 break;
 184
 185                 default:
 186                 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, psec);
 187                 break;
 188         }
 189 }
 190
 191
 192 static void custom_cell_renderer_theme_set_property(GObject *object, guint param_id, const GValue *value, GParamSpec *pspec)
 193 {
 194         CustomCellRendererTheme *cellprogress = CUSTOM_CELL_RENDERER_THEME(object);
 195
 196         switch (param_id) {
 197                 case PROP_TITLE:
 198 //printf("set_property**************************************\n");
 199                 cellprogress->title = g_value_get_string(value);
 200                 break;
 201
 202                 default:
 203                 G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec);
 204                 break;
 205         }
 206 }
 207
 208
 209 #define FIXED_WIDTH   100
 210 #define FIXED_HEIGHT  20
 211
 212 static void custom_cell_renderer_theme_get_size(GtkCellRenderer *cell, GtkWidget *widget, GdkRectangle *cell_area, gint *x_offset, gint *y_offset, gint *width, gint *height)
 213 {
 214         gint calc_width;
 215         gint calc_height;
 216
 217         // calculate the size of our cell, taking into account
 218         // padding and alignment properties of parent.
 219         calc_width  = (gint) cell->xpad * 2 + FIXED_WIDTH;
 220         calc_height = (gint) cell->ypad * 2 + FIXED_HEIGHT;
 221
 222         if (width)
 223                 *width = calc_width;
 224
 225         if (height)
 226                 *height = calc_height;
 227
 228         if (cell_area) {
 229                 if (x_offset) {
 230                         *x_offset = cell->xalign * (cell_area->width - calc_width);
 231                         *x_offset = MAX (*x_offset, 0);
 232                 }
 233
 234                 if (y_offset) {
 235                         *y_offset = cell->yalign * (cell_area->height - calc_height);
 236                         *y_offset = MAX (*y_offset, 0);
 237                 }
 238         }
 239 }
 240
 241
 242 static void custom_cell_renderer_theme_render(GtkCellRenderer *cell, GdkWindow *window, GtkWidget *widget, GdkRectangle *background_area, GdkRectangle *cell_area, GdkRectangle *expose_area, guint flags)
 243 {
 244         CustomCellRendererTheme *celltheme = CUSTOM_CELL_RENDERER_THEME(cell);
 245         GtkStateType  state;
 246         gint width, height, x_offset, y_offset;
 247         PangoLayout *layout;
 248
 249         // do the rendering.
 250         custom_cell_renderer_theme_get_size(cell, widget, cell_area, &x_offset, &y_offset,      &width, &height);
 251
 252         if (GTK_WIDGET_HAS_FOCUS (widget))
 253                 state = GTK_STATE_ACTIVE;
 254         else
 255                 state = GTK_STATE_NORMAL;
 256
 257         width  -= cell->xpad*2;
 258         height -= cell->ypad*2;
 259
 260         layout = gtk_widget_create_pango_layout(widget, "");
 261         pango_layout_set_text(layout, celltheme->title, strlen(celltheme->title));
 262         gtk_paint_layout (widget->style, widget->window, state, FALSE, NULL, widget, NULL, x_offset, y_offset, layout);
 263         //pango_layout_get_size (layout, &width, &height);
 264         g_object_unref (layout);
 265
 266         //gtk_paint_layout
 267         //gtk_paint_box (widget->style, window, GTK_STATE_NORMAL, GTK_SHADOW_IN, NULL, widget, "title", cell_area->x + x_offset + cell->xpad, cell_area->y + y_offset + cell->ypad, width - 1, height - 1);
 268
 269 printf("custom_cell_renderer_theme_render\n");
 270         //gtk_paint_box (widget->style, window, state, GTK_SHADOW_OUT, NULL, widget, "bar", cell_area->x + x_offset + cell->xpad, cell_area->y + y_offset + cell->ypad, width * cellprogress->progress, height - 1);
 271 }
 272