gnoemoe/gnoemoe/mcp/gm-cell-renderer-text.c

#include <string.h>
#include <config.h>
#include <glib/gi18n.h>
#include "gm-cell-renderer-text.h"
#include "gm-debug.h"

struct _GmCellRendererTextPrivate {
	gchar *name;
	gchar *status;
	gint width;
};

#define GM_CELL_RENDERER_TEXT_GET_PRIVATE(object)( \
		G_TYPE_INSTANCE_GET_PRIVATE((object), \
		GM_TYPE_CELL_RENDERER_TEXT, GmCellRendererTextPrivate))

static void gm_cell_renderer_text_class_init(GmCellRendererTextClass *klass);
static void gm_cell_renderer_text_init(GmCellRendererText *cell);
static void cell_renderer_text_finalize(GObject *object);
static void cell_renderer_text_get_property(GObject *object, guint param_id,
		GValue *value, GParamSpec *pspec);
static void cell_renderer_text_set_property(GObject *object, guint param_id,
		GValue const *value, GParamSpec *pspec);
static void cell_renderer_text_get_size(GtkCellRenderer *cell, 
		GtkWidget *widget, GdkRectangle *cell_area, gint *x_offset,
		gint *y_offset, gint *width, gint *height);
static void cell_renderer_text_render(GtkCellRenderer *cell,
		GdkDrawable *window, GtkWidget *widget, GdkRectangle *background_area,
		GdkRectangle *cell_area, GdkRectangle *expose_area, 
		GtkCellRendererState flags);
static void cell_renderer_text_update_text(GmCellRendererText *cell,
		GtkWidget *widget, gint new_width, gboolean selected);

/* Properties */
enum {
	PROP_0,
	PROP_NAME,
	PROP_STATUS
};

G_DEFINE_TYPE (GmCellRendererText, gm_cell_renderer_text, GTK_TYPE_CELL_RENDERER_TEXT);

static gpointer parent_class;

static void 
gm_cell_renderer_text_class_init(GmCellRendererTextClass *klass) {
	GObjectClass *object_class;
	GtkCellRendererClass *cell_class;
	
	object_class = G_OBJECT_CLASS(klass);
	cell_class = GTK_CELL_RENDERER_CLASS(klass);
	
	parent_class = g_type_class_peek_parent(klass);

	object_class->finalize = cell_renderer_text_finalize;

	object_class->get_property = cell_renderer_text_get_property;
	object_class->set_property = cell_renderer_text_set_property;

	cell_class->get_size = cell_renderer_text_get_size;
	cell_class->render = cell_renderer_text_render;
	
	g_object_class_install_property(object_class, PROP_NAME,
			g_param_spec_string("name", "Name", "Player name", NULL,
			G_PARAM_READWRITE));
	g_object_class_install_property(object_class, PROP_STATUS,
			g_param_spec_string ("status", "Status", "Contact status string",
			NULL, G_PARAM_READWRITE));

	g_type_class_add_private(object_class, sizeof(GmCellRendererTextPrivate));
}

static void
gm_cell_renderer_text_init(GmCellRendererText *cell) {
	cell->priv = GM_CELL_RENDERER_TEXT_GET_PRIVATE(cell);
	
	//g_object_set(cell, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
	cell->priv->name = g_strdup("");
	cell->priv->status = g_strdup("");
}

static void
cell_renderer_text_finalize(GObject *object) {
	GmCellRendererText *cell;

	cell = GM_CELL_RENDERER_TEXT(object);

	g_free(cell->priv->name);
	g_free(cell->priv->status);

	G_OBJECT_CLASS(parent_class)->finalize(object);
}

static void
cell_renderer_text_get_property(GObject *object, guint param_id,
		GValue *value, GParamSpec *pspec) {
	GmCellRendererText *cell;

	cell = GM_CELL_RENDERER_TEXT(object);

	switch (param_id) {
		case PROP_NAME:
			g_value_set_string(value, cell->priv->name);
		break;
		case PROP_STATUS:
			g_value_set_string(value, cell->priv->status);
		break;
		default:
			G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec);
		break;
	}
}

static void
cell_renderer_text_set_property(GObject *object, guint param_id,
		GValue const *value, GParamSpec *pspec) {
	GmCellRendererText *cell;
	const gchar *str;
	
	cell = GM_CELL_RENDERER_TEXT(object);

	switch (param_id) {
		case PROP_NAME:
			g_free(cell->priv->name);
			str = g_value_get_string(value);
			cell->priv->name = g_strdup(str);
			
			if (cell->priv->name) {
				g_strdelimit(cell->priv->name, "\n\r\t", ' ');
			}
		break;
		case PROP_STATUS:
			g_free(cell->priv->status);
			str = g_value_get_string(value);
			cell->priv->status = g_strdup(str);
			
			if (cell->priv->status) {
				g_strdelimit(cell->priv->status, "\n\r\t", ' ');
			}
		break;
		default:
			G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec);
		break;
	}
}

static void
cell_renderer_text_get_size(GtkCellRenderer *cell, GtkWidget *widget,
		GdkRectangle *cell_area, gint *x_offset, gint *y_offset,
		gint *width, gint *height) {
	GmCellRendererText *celltext;

	celltext = GM_CELL_RENDERER_TEXT(cell);
	
	cell_renderer_text_update_text(celltext, widget, 0, 0);

	GTK_CELL_RENDERER_CLASS(parent_class)->get_size(cell, widget,
			cell_area, x_offset, y_offset, width, height);
}

static void
cell_renderer_text_render(GtkCellRenderer *cell, GdkWindow *window,
		GtkWidget *widget, GdkRectangle *background_area, 
		GdkRectangle *cell_area, GdkRectangle *expose_area, 
		GtkCellRendererState flags) {
	GmCellRendererText *celltext;

	celltext = GM_CELL_RENDERER_TEXT(cell);

	cell_renderer_text_update_text(celltext, widget, cell_area->width,
			(flags & GTK_CELL_RENDERER_SELECTED));

	GTK_CELL_RENDERER_CLASS(parent_class)->render(cell, window, widget, 
			background_area, cell_area, expose_area, flags);
}

static void
cell_renderer_text_update_text(GmCellRendererText *cell, GtkWidget *widget,
		gint new_width, gboolean selected) {
	PangoAttrList *attr_list;
	PangoAttribute *attr_color, *attr_style, *attr_size;
	GtkStyle *style;
	GdkColor color;
	gchar *str;
	gboolean show_status = FALSE;
	gint font_size;
	
	cell->priv->width = new_width;

	attr_color = NULL;

	if (cell->priv->status && *(cell->priv->status) != '\0') {
		show_status = TRUE;
	} 

	if (cell->priv->name != NULL) {
		str = g_strdup_printf("%s%s%s", cell->priv->name, 
				!show_status ? "" : "\n", 
				!show_status ? "" : cell->priv->status);
	} else {
		g_object_set(cell, "visible", TRUE, "weight", PANGO_WEIGHT_NORMAL,
			"text", "", NULL);
		return;
	}

 	style = gtk_widget_get_style(widget);
	color = style->text_aa[GTK_STATE_NORMAL];
	font_size = pango_font_description_get_size(style->font_desc) / PANGO_SCALE;

	attr_list = pango_attr_list_new();

	attr_size = pango_attr_size_new(pango_font_description_get_size(
			style->font_desc) / (font_size >= 10 ? 1.2 : 1.0));
	attr_size->start_index = 0;
	attr_size->end_index = strlen(cell->priv->name);
	pango_attr_list_insert(attr_list, attr_size);
	
	attr_style = pango_attr_style_new(PANGO_STYLE_ITALIC);
	attr_style->start_index = attr_size->end_index + 1;
	attr_style->end_index = -1;
	pango_attr_list_insert(attr_list, attr_style);

  	if (!selected) {  
   		attr_color = pango_attr_foreground_new(color.red, color.green, color.blue);   
   		attr_color->start_index = attr_style->start_index;   
   		attr_color->end_index = -1;   
   		pango_attr_list_insert(attr_list, attr_color);   
   	}   

	attr_size = pango_attr_size_new(pango_font_description_get_size(
			style->font_desc) / (font_size >= 10 ? 1.5 : 1.2));
	attr_size->start_index = attr_style->start_index;
	attr_size->end_index = -1;
	pango_attr_list_insert(attr_list, attr_size);

	g_object_set(cell, "visible", TRUE, "weight", PANGO_WEIGHT_NORMAL,
			"text", str, "attributes", attr_list, NULL);
			
	pango_attr_list_unref(attr_list);
	g_free(str);
}

GtkCellRenderer * 
gm_cell_renderer_text_new (void) {
	return g_object_new(GM_TYPE_CELL_RENDERER_TEXT, NULL);
}