test_widget_render.c

#include <LCUI_Build.h>
#include <LCUI/LCUI.h>
#include <LCUI/graph.h>
#include <LCUI/image.h>
#include <LCUI/gui/widget.h>
#include <LCUI/gui/widget/textview.h>

int main( void )
{
	int ret;
	LCUI_Graph canvas;
	LCUI_Widget root, box, txt;
	LCUI_PaintContextRec paint;
	LCUI_Rect area = {40, 40, 320, 240};
	LCUI_Color bgcolor = RGB( 242, 249, 252 );
	LCUI_Color bdcolor = RGB( 201, 230, 242 );

	LCUI_Init();

	root = LCUIWidget_New( NULL );
	box = LCUIWidget_New( NULL );
	txt = LCUIWidget_New( "textview" );

	/* 创建一块灰色的画板 */
	Graph_Init( &canvas );
	Graph_Create( &canvas, 320, 240 );
	Graph_FillRect( &canvas, RGB( 240, 240, 240 ), NULL, FALSE );

	/* 初始化一个绘制实例，绘制区域为整个画板 */
	paint.with_alpha = FALSE;
	paint.rect.width = 320;
	paint.rect.height = 320;
	paint.rect.x = paint.rect.y = 0;
	Graph_Quote( &paint.canvas, &canvas, &area );

	/* 设定基本的样式和内容 */
	Widget_SetPadding( box, 20, 20, 20, 20 );
	Widget_SetBorder( box, 1, SV_SOLID, bdcolor );
	Widget_SetStyle( box, key_background_color, bgcolor, color );
	TextView_SetTextW( txt, L"[size=24px]这是一段测试文本[/size]" );
	Widget_Append( box, txt );
	Widget_Append( root, box );
	/* 标记需要更新样式 */
	Widget_UpdateStyle( txt, TRUE );
	Widget_UpdateStyle( box, TRUE );
	Widget_UpdateStyle( root, TRUE );
	/* 更新部件，此处的更新顺序必须是父级到子级 */
	Widget_Update( root );
	Widget_Update( box );
	Widget_Update( txt );

	/* 渲染部件 */
	Widget_Render( box, &paint );
	ret = LCUI_WritePNGFile( "test_widget_render.png", &canvas );
	Graph_Free( &canvas );

	LCUI_Destroy();
	return ret;
}