struct rtgui_dc *rtgui_dc_buffer_create_from_dc(struct rtgui_dc* dc)
{
struct rtgui_dc_buffer *buffer;
if (dc == RT_NULL)
return RT_NULL;
if (dc->type == RTGUI_DC_BUFFER)
{
struct rtgui_dc_buffer *d = (struct rtgui_dc_buffer*) dc;
/* buffer clone */
buffer = (struct rtgui_dc_buffer*)rtgui_dc_buffer_create_pixformat(d->pixel_format,
d->width,
d->height);
if (buffer != RT_NULL)
{
rt_memcpy(buffer->pixel, d->pixel, d->pitch * d->height);
return RTGUI_DC(buffer);
}
}
return RT_NULL;
}
struct rtgui_dc *rtgui_dc_buffer_create(int w, int h)
{
rt_uint8_t pixel_format;
pixel_format = rtgui_graphic_driver_get_default()->pixel_format;
/* create a dc_buffer with hardware driver pixel format */
return rtgui_dc_buffer_create_pixformat(pixel_format, w, h);
}
struct rtgui_dc*
rtgui_graphic_driver_get_rect_buffer(const struct rtgui_graphic_driver *driver,
struct rtgui_rect *r)
{
int w, h;
struct rtgui_dc_buffer *buffer;
rt_uint8_t *pixel, *dst;
struct rtgui_rect src, rect;
/* use virtual framebuffer in default */
if (driver == RT_NULL) driver = _current_driver;
if (r == RT_NULL)
{
rtgui_graphic_driver_get_rect(driver, &rect);
}
else
{
rtgui_graphic_driver_get_rect(driver, &src);
rect = *r;
rtgui_rect_intersect(&src, &rect);
}
w = rtgui_rect_width (rect);
h = rtgui_rect_height(rect);
if (!(w && h) || driver->framebuffer == RT_NULL)
return RT_NULL;
/* create buffer DC */
buffer = (struct rtgui_dc_buffer*)rtgui_dc_buffer_create_pixformat(driver->pixel_format, w, h);
if (buffer == RT_NULL)
return (struct rtgui_dc*)buffer;
/* get source pixel */
pixel = (rt_uint8_t*)driver->framebuffer
+ rect.y1 * driver->pitch
+ rect.x1 * rtgui_color_get_bpp(driver->pixel_format);
dst = buffer->pixel;
while (h--)
{
memcpy(dst, pixel, buffer->pitch);
dst += buffer->pitch;
pixel += driver->pitch;
}
return (struct rtgui_dc*)buffer;
}
static struct app_list_view *app_list_create(rtgui_rect_t *rect,
struct app_item *items,
rt_uint16_t item_count,
rt_uint8_t row_items,
rt_uint8_t col_items,
rtgui_image_t *bg_image)
{
struct app_list_view *view = RT_NULL;
view = (struct app_list_view *)rtgui_malloc(sizeof(struct app_list_view));
view->rect = *rect;
view->view_rect.x1 = rect->x1;
view->view_rect.x2 = rect->x2;
view->view_rect.y1 = rect->y1 + 4 * LIST_MARGIN;
view->view_rect.y2 = rect->y2 - 6 * LIST_MARGIN;
view->col_items = col_items;
view->row_items = row_items;
view->current_page = 0;
view->old_page = 0;
view->page_items = col_items * row_items;
view->page_count = (item_count + view->page_items - 1) / view->page_items;
view->current_item = -1;
view->items = items;
view->items_count = item_count;
if (bg_image != RT_NULL)
{
rtgui_rect_t bg_rect;
RTGUI_RECT(bg_rect, 0, 0, bg_image->w, bg_image->h);
/* create background dc buffer */
view->bg_buffer = rtgui_dc_buffer_create(bg_image->w, bg_image->h);
/* draw background image to buffer */
rtgui_image_blit(bg_image, view->bg_buffer, &bg_rect);
}
/* create the main menu dc buffer */
view->view_buffer =
rtgui_dc_buffer_create_pixformat(RTGRAPHIC_PIXEL_FORMAT_ARGB888,
rtgui_rect_width(view->view_rect) *
view->page_count,
rtgui_rect_height(view->view_rect));
RTGUI_DC_BC(view->view_buffer) = RTGUI_ARGB(0, 0, 0, 0);
view->pm_rect.x1 = 0;
view->pm_rect.y1 = rect->y2 - 6 * LIST_MARGIN;
view->pm_rect.x2 = PAGE_MARK_ITEM_WIDTH * view->page_count + PAGE_MARK_MARGIN *
(view->page_count - 1);
view->pm_rect.y2 = view->pm_rect.y1 + PAGE_MARK_ITEM_HEIGHT;
view->pm_buffer =
rtgui_dc_buffer_create_pixformat(RTGRAPHIC_PIXEL_FORMAT_ARGB888,
rtgui_rect_width(view->pm_rect) ,
rtgui_rect_height(view->pm_rect));
rtgui_rect_moveto_align(rect, &view->pm_rect, RTGUI_ALIGN_CENTER_HORIZONTAL);
RTGUI_DC_BC(view->pm_buffer) = RTGUI_ARGB(0, 0, 0, 0);
view->bgdisp_point.x = 0;
view->bgdisp_point.y = 0;
view->listdisp_point.x = 0;
view->listdisp_point.y = 0;
view->on_select = RT_NULL;
return view;
}
