int main()
{
LCUI_Graph graph_buff;
LCUI_GraphLayer *root_glayer;
LCUI_GraphLayer *a_glayer, *b_glayer, *c_glayer;
Graph_Init( &graph_buff );
/* 新建图层 */
root_glayer = GraphLayer_New();
a_glayer = GraphLayer_New();
b_glayer = GraphLayer_New();
c_glayer = GraphLayer_New();
/* 调整图层尺寸 */
GraphLayer_Resize( root_glayer, 320, 240 );
GraphLayer_Resize( a_glayer, 200, 150 );
GraphLayer_Resize( b_glayer, 100, 100 );
GraphLayer_Resize( c_glayer, 80, 80 );
/* 填充颜色 */
Graph_FillColor( &root_glayer->graph, RGB(255,255,255) );
Graph_FillColor( &a_glayer->graph, RGB(255,50,50) );
Graph_FillColor( &b_glayer->graph, RGB(50,255,50) );
Graph_FillColor( &c_glayer->graph, RGB(50,50,255) );
/* 建立父子图层关系 */
GraphLayer_AddChild( b_glayer, c_glayer );
GraphLayer_AddChild( root_glayer, a_glayer );
GraphLayer_AddChild( root_glayer, b_glayer );
/* 调整图层坐标 */
GraphLayer_SetPos( a_glayer, 50, 50 );
GraphLayer_SetPos( b_glayer, 175, 125 );
GraphLayer_SetPos( c_glayer, -15, 30 );
/* 显示图层 */
GraphLayer_Show( root_glayer );
GraphLayer_Show( a_glayer );
GraphLayer_Show( b_glayer );
GraphLayer_Show( c_glayer );
/* 获取根图层指定区域内实际显示的图形 */
GraphLayer_GetGraph( root_glayer, &graph_buff, Rect(0,0,320,240) );
/* 写入至文件 */
Graph_WritePNG( OUTPUT_GRAPHFILE, &graph_buff );
printf( "please see file: %s \n", OUTPUT_GRAPHFILE );
GraphLayer_Free( root_glayer );
return 0;
}
LCUI_API int
LCUIScreen_Init( void )
{
RECT client_rect;
LCUI_Graph *graph;
WNDCLASS wndclass;
TCHAR szAppName[] = TEXT ("Typer");
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = Win32_LCUI_WndProc;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = win32_hInstance;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass)) {
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0;
}
current_hwnd = CreateWindow (
szAppName, TEXT ("LCUI"),
WS_OVERLAPPEDWINDOW &~WS_THICKFRAME,
CW_USEDEFAULT, CW_USEDEFAULT,
WIN32_WINDOW_WIDTH, WIN32_WINDOW_HEIGHT,
NULL, NULL, win32_hInstance, NULL);
GetClientRect( current_hwnd, &client_rect );
LCUI_Sys.screen.fb_dev_fd = -1;
LCUI_Sys.screen.fb_dev_name = "win32";
LCUI_Sys.screen.bits = 32;
LCUI_Sys.screen.size.w = client_rect.right;
LCUI_Sys.screen.size.h = client_rect.bottom;
LCUI_Sys.screen.smem_len = LCUI_Sys.screen.size.w * LCUI_Sys.screen.size.h * 4;
/* 分配内存，储存像素数据 */
pixel_mem = malloc ( LCUI_Sys.screen.smem_len );
LCUI_Sys.screen.fb_mem = pixel_mem;
LCUI_Sys.root_glayer = GraphLayer_New();
GraphLayer_Resize( LCUI_Sys.root_glayer, LCUI_Sys.screen.size.w, LCUI_Sys.screen.size.h );
graph = GraphLayer_GetSelfGraph( LCUI_Sys.root_glayer );
Graph_FillColor( graph, RGB(255,255,255) );
/* 获取客户区的DC */
hdc_client = GetDC( current_hwnd );
/* 为帧缓冲创建一个DC */
hdc_framebuffer = CreateCompatibleDC( hdc_client );
/* 为客户区创建一个Bitmap */
client_bitmap = CreateCompatibleBitmap( hdc_client, LCUI_Sys.screen.size.w, LCUI_Sys.screen.size.h );
/* 为帧缓冲的DC选择client_bitmap作为对象 */
SelectObject( hdc_framebuffer, client_bitmap );
GraphLayer_Show( LCUI_Sys.root_glayer );
ShowWindow( current_hwnd, SW_SHOWNORMAL );
UpdateWindow( current_hwnd );
return 0;
}