C++ (Cpp) purple_whiteboard_draw_line Examples

Example #1

File: wb.c Project: bf4/pidgin-mac

static void
silcpurple_wb_parse(SilcPurpleWb wbs, PurpleWhiteboard *wb,
		  unsigned char *message, SilcUInt32 message_len)
{
	SilcUInt8 command;
	SilcUInt16 width, height, brush_size;
	SilcUInt32 brush_color, x, y, dx, dy;
	SilcBufferStruct buf;
	int ret;

	/* Parse the packet */
	silc_buffer_set(&buf, message, message_len);
	ret = silc_buffer_unformat(&buf,
				   SILC_STR_UI_CHAR(&command),
				   SILC_STR_UI_SHORT(&width),
				   SILC_STR_UI_SHORT(&height),
				   SILC_STR_UI_INT(&brush_color),
				   SILC_STR_UI_SHORT(&brush_size),
				   SILC_STR_END);
	if (ret < 0)
		return;
	silc_buffer_pull(&buf, ret);

	/* Update whiteboard if its dimensions changed */
	if (width != wbs->width || height != wbs->height)
		silcpurple_wb_set_dimensions(wb, height, width);

	if (command == SILCPURPLE_WB_DRAW) {
		/* Parse data and draw it */
		ret = silc_buffer_unformat(&buf,
					   SILC_STR_UI_INT(&dx),
					   SILC_STR_UI_INT(&dy),
					   SILC_STR_END);
		if (ret < 0)
			return;
		silc_buffer_pull(&buf, 8);
		x = dx;
		y = dy;
		while (silc_buffer_len(&buf) > 0) {
			ret = silc_buffer_unformat(&buf,
						   SILC_STR_UI_INT(&dx),
						   SILC_STR_UI_INT(&dy),
						   SILC_STR_END);
			if (ret < 0)
				return;
			silc_buffer_pull(&buf, 8);

			purple_whiteboard_draw_line(wb, x, y, x + dx, y + dy,
						    brush_color, brush_size);
			x += dx;
			y += dy;
		}
	}

	if (command == SILCPURPLE_WB_CLEAR)
		purple_whiteboard_clear(wb);
}

Example #2

File: yahoo_doodle.c Project: Lilitana/Pidgin

/* Traverse through the list and draw the points and lines */
void yahoo_doodle_draw_stroke(PurpleWhiteboard *wb, GList *draw_list)
{
	int brush_color;
	int brush_size;
	int x;
	int y;

	g_return_if_fail(draw_list != NULL);

	brush_color = GPOINTER_TO_INT(draw_list->data);
	draw_list = draw_list->next;
	g_return_if_fail(draw_list != NULL);

	brush_size = GPOINTER_TO_INT(draw_list->data);
	draw_list = draw_list->next;
	g_return_if_fail(draw_list != NULL);

	x = GPOINTER_TO_INT(draw_list->data);
	draw_list = draw_list->next;
	g_return_if_fail(draw_list != NULL);

	y = GPOINTER_TO_INT(draw_list->data);
	draw_list = draw_list->next;
	g_return_if_fail(draw_list != NULL);

	/*
	purple_debug_debug("yahoo", "doodle: Drawing: color=%d, size=%d, (%d,%d)\n", brush_color, brush_size, x, y);
	*/

	while(draw_list != NULL && draw_list->next != NULL)
	{
		int dx = GPOINTER_TO_INT(draw_list->data);
		int dy = GPOINTER_TO_INT(draw_list->next->data);

		purple_whiteboard_draw_line(wb,
								  x, y,
								  x + dx, y + dy,
								  brush_color, brush_size);

		x += dx;
		y += dy;

		draw_list = draw_list->next->next;
	}
}