A src/tint2conf/theme_view.c

@@ -0,0 +1,272 @@ 
+
+#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);
+}
+

A src/tint2conf/theme_view.h

@@ -0,0 +1,48 @@ 
+#ifndef THEME_VIEW
+#define THEME_VIEW
+
+#include <gtk/gtk.h>
+
+// Some boilerplate GObject type check and type cast macros.
+// 'klass' is used here instead of 'class', because 'class' is a c++ keyword
+
+#define CUSTOM_TYPE_CELL_RENDERER_THEME             (custom_cell_renderer_theme_get_type())
+#define CUSTOM_CELL_RENDERER_THEME(obj)             (G_TYPE_CHECK_INSTANCE_CAST((obj),  CUSTOM_TYPE_CELL_RENDERER_THEME, CustomCellRendererTheme))
+#define CUSTOM_CELL_RENDERER_THEME_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass),  CUSTOM_TYPE_CELL_RENDERER_THEME, CustomCellRendererThemeClass))
+#define CUSTOM_IS_CELL_PROGRESS_THEME(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CUSTOM_TYPE_CELL_RENDERER_THEME))
+#define CUSTOM_IS_CELL_PROGRESS_THEME_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass),  CUSTOM_TYPE_CELL_RENDERER_THEME))
+#define CUSTOM_CELL_RENDERER_THEME_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj),  CUSTOM_TYPE_CELL_RENDERER_THEME, CustomCellRendererThemeClass))
+
+extern GtkListStore *g_store;
+
+enum { COL_TEXT = 0, N_COLUMNS };
+
+typedef struct _CustomCellRendererTheme CustomCellRendererTheme;
+typedef struct _CustomCellRendererThemeClass CustomCellRendererThemeClass;
+
+
+struct _CustomCellRendererTheme
+{
+	GtkCellRenderer parent;
+
+	gchar	*title;
+	gdouble progress;
+};
+
+
+struct _CustomCellRendererThemeClass
+{
+	GtkCellRendererClass  parent_class;
+};
+
+
+GtkWidget *create_view_and_model(void);
+
+GType  custom_cell_renderer_theme_get_type(void);
+
+void on_changed(GtkWidget *widget, gpointer label);
+
+void add_to_list(GtkWidget *list, const gchar *str);
+
+#endif
+