src/tint2conf/theme_view.c (raw)
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#include "theme_view.h" GtkListStore *g_store; // Some boring function declarations: GObject type system stuff static void custom_cell_renderer_theme_init(CustomCellRendererTheme *cellprogress); static void custom_cell_renderer_theme_class_init(CustomCellRendererThemeClass *klass); static void custom_cell_renderer_theme_finalize(GObject *gobject); static void custom_cell_renderer_theme_get_property(GObject *object, guint param_id, GValue *value, GParamSpec *pspec); static void custom_cell_renderer_theme_set_property(GObject *object, guint param_id, const GValue *value, GParamSpec *pspec); // These functions are the heart of our custom cell renderer: 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); static void custom_cell_renderer_theme_render(GtkCellRenderer *cell, GdkWindow *window, GtkWidget *widget, GdkRectangle *background_area, GdkRectangle *cell_area, GdkRectangle *expose_area, guint flags); static gpointer parent_class; enum { PROP_TITLE = 1, }; GtkWidget *create_view_and_model(void) { GtkTreeViewColumn *col; GtkCellRenderer *renderer; GtkWidget *view; GtkTreeSelection *sel; GtkTreeIter iter; g_store = gtk_list_store_new(N_COLUMNS, G_TYPE_STRING); view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(g_store)); gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(view), FALSE); g_object_unref(g_store); // destroy store automatically with view /* renderer = gtk_cell_renderer_text_new(); col = gtk_tree_view_column_new_with_attributes("Deb", renderer, "title", COL_TEXT, NULL); gtk_tree_view_append_column(GTK_TREE_VIEW(view), col); */ renderer = g_object_new(CUSTOM_TYPE_CELL_RENDERER_THEME, NULL); col = gtk_tree_view_column_new(); gtk_tree_view_column_pack_start (col, renderer, TRUE); gtk_tree_view_column_add_attribute (col, renderer, "title", COL_TEXT); gtk_tree_view_append_column(GTK_TREE_VIEW(view),col); sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(view)); gtk_tree_selection_set_mode(GTK_TREE_SELECTION(sel), GTK_SELECTION_SINGLE); g_signal_connect(sel, "changed", G_CALLBACK(on_changed), NULL); return view; } void on_changed(GtkWidget *widget, gpointer label) { GtkTreeIter iter; GtkTreeModel *model; char *value; if (gtk_tree_selection_get_selected(GTK_TREE_SELECTION(widget), &model, &iter)) { gtk_tree_model_get(model, &iter, COL_TEXT, &value, -1); //gtk_label_set_text(GTK_LABEL(label), value); g_free(value); } } void add_to_list(GtkWidget *list, const gchar *str) { GtkTreeIter iter; gtk_list_store_append(g_store, &iter); gtk_list_store_set(g_store, &iter, COL_TEXT, str, -1); //gtk_list_store_set (g_store, &iter, COL_TEXT, buf, -1); } /*************************************************************************** * custom_cell_renderer_theme_get_type: here we register our type with * the GObject type system if we * haven't done so yet. Everything * else is done in the callbacks. ***************************************************************************/ GType custom_cell_renderer_theme_get_type (void) { static GType cell_type = 0; if (cell_type == 0) { static const GTypeInfo cell_info = { sizeof (CustomCellRendererThemeClass), NULL, // base_init NULL, // base_finalize (GClassInitFunc) custom_cell_renderer_theme_class_init, NULL, // class_finalize NULL, // class_data sizeof (CustomCellRendererTheme), 0, // n_preallocs (GInstanceInitFunc) custom_cell_renderer_theme_init, }; // Derive from GtkCellRenderer cell_type = g_type_register_static(GTK_TYPE_CELL_RENDERER, "CustomCellRendererTheme", &cell_info, 0); } return cell_type; } static void custom_cell_renderer_theme_init(CustomCellRendererTheme *celltheme) { // set some default properties GTK_CELL_RENDERER(celltheme)->mode = GTK_CELL_RENDERER_MODE_INERT; GTK_CELL_RENDERER(celltheme)->xpad = 2; GTK_CELL_RENDERER(celltheme)->ypad = 2; celltheme->title = 0; printf("custom_cell_renderer_theme_init\n\n"); } /*************************************************************************** * custom_cell_renderer_theme_class_init: * * set up our own get_property and set_property functions, and * override the parent's functions that we need to implement. * And make our new "percentage" property known to the type system. * If you want cells that can be activated on their own (ie. not * just the whole row selected) or cells that are editable, you * will need to override 'activate' and 'start_editing' as well. ***************************************************************************/ static void custom_cell_renderer_theme_class_init(CustomCellRendererThemeClass *klass) { GtkCellRendererClass *cell_class = GTK_CELL_RENDERER_CLASS(klass); GObjectClass *object_class = G_OBJECT_CLASS(klass); parent_class = g_type_class_peek_parent (klass); object_class->finalize = custom_cell_renderer_theme_finalize; object_class->get_property = custom_cell_renderer_theme_get_property; object_class->set_property = custom_cell_renderer_theme_set_property; // Override the two crucial functions that are the heart of a cell renderer in the parent class cell_class->get_size = custom_cell_renderer_theme_get_size; cell_class->render = custom_cell_renderer_theme_render; printf("custom_class_init\n\n"); // Install our very own properties g_object_class_install_property (object_class, PROP_TITLE, g_param_spec_string("title", "Title", "Theme's title", 0, G_PARAM_READWRITE)); // 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)); } static void custom_cell_renderer_theme_finalize(GObject *object) { CustomCellRendererTheme *celltheme = CUSTOM_CELL_RENDERER_THEME(object); // free any resources here //if (celltheme->title) //g_free(celltheme->title); // Free any dynamically allocated resources here (* G_OBJECT_CLASS (parent_class)->finalize) (object); } static void custom_cell_renderer_theme_get_property(GObject *object, guint param_id, GValue *value, GParamSpec *psec) { CustomCellRendererTheme *celltheme = CUSTOM_CELL_RENDERER_THEME(object); switch (param_id) { case PROP_TITLE: g_value_set_string(value, celltheme->title); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, psec); break; } } static void custom_cell_renderer_theme_set_property(GObject *object, guint param_id, const GValue *value, GParamSpec *pspec) { CustomCellRendererTheme *cellprogress = CUSTOM_CELL_RENDERER_THEME(object); switch (param_id) { case PROP_TITLE: //printf("set_property**************************************\n"); cellprogress->title = g_value_get_string(value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec); break; } } #define FIXED_WIDTH 100 #define FIXED_HEIGHT 20 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) { gint calc_width; gint calc_height; // calculate the size of our cell, taking into account // padding and alignment properties of parent. calc_width = (gint) cell->xpad * 2 + FIXED_WIDTH; calc_height = (gint) cell->ypad * 2 + FIXED_HEIGHT; if (width) *width = calc_width; if (height) *height = calc_height; if (cell_area) { if (x_offset) { *x_offset = cell->xalign * (cell_area->width - calc_width); *x_offset = MAX (*x_offset, 0); } if (y_offset) { *y_offset = cell->yalign * (cell_area->height - calc_height); *y_offset = MAX (*y_offset, 0); } } } static void custom_cell_renderer_theme_render(GtkCellRenderer *cell, GdkWindow *window, GtkWidget *widget, GdkRectangle *background_area, GdkRectangle *cell_area, GdkRectangle *expose_area, guint flags) { CustomCellRendererTheme *celltheme = CUSTOM_CELL_RENDERER_THEME(cell); GtkStateType state; gint width, height, x_offset, y_offset; PangoLayout *layout; // do the rendering. custom_cell_renderer_theme_get_size(cell, widget, cell_area, &x_offset, &y_offset, &width, &height); if (GTK_WIDGET_HAS_FOCUS (widget)) state = GTK_STATE_ACTIVE; else state = GTK_STATE_NORMAL; width -= cell->xpad*2; height -= cell->ypad*2; layout = gtk_widget_create_pango_layout(widget, ""); pango_layout_set_text(layout, celltheme->title, strlen(celltheme->title)); gtk_paint_layout (widget->style, widget->window, state, FALSE, NULL, widget, NULL, x_offset, y_offset, layout); //pango_layout_get_size (layout, &width, &height); g_object_unref (layout); //gtk_paint_layout //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); printf("custom_cell_renderer_theme_render\n"); //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); } |