使用soui4绘制渐变线条及渐变文字

setoutsoft

最近有人要做这两个效果，把demo放上来。
绘制渐变文字：

[C++] 纯文本查看 复制代码

void CMainDlg::onBtnDrawString()
{
	SWindow *pCanvasWnd = FindChildByName("canvas");
	if(pCanvasWnd){
		CRect rc = pCanvasWnd->GetClientRect();

		SAutoRefPtr<IPathS> path;
		GETRENDERFACTORY->CreatePath(&path);
		path->addString(L"Hello Soui4",-1,rc.left,rc.top,SFontPool::GetFont(L"size:30",100));

		IRenderTarget *pRT = pCanvasWnd->GetRenderTarget(NULL,GRT_OFFSCREEN);
		SAutoRefPtr<IBrushS> br;
		Gra***ntItem items[2];
		items[0].cr=RGBA(255,0,0,255);
		items[0].pos=0;
		items[1].cr=RGBA(0,255,0,255);
		items[1].pos = 1.0;
		Gra***ntInfo info;
		info.type=linear;
		info.angle=0;
		pRT->CreateGra***ntBrush(items,2,&info,255,kClamp_TileMode,&br);
		pRT->SelectObject(br);
		pRT->FillPath(path);
		pRT->SelectDefaultObject(OT_BRUSH);

		pCanvasWnd->ReleaseRenderTarget(pRT);
	}
}

绘制渐变线条：

[C] 纯文本查看 复制代码

void CMainDlg::onBtnDrawCurve()
{
	SWindow *pCanvasWnd = FindChildByName("canvas");
	if(pCanvasWnd){
		CRect rc = pCanvasWnd->GetClientRect();

		SAutoRefPtr<IPathS> path;
		GETRENDERFACTORY->CreatePath(&path);
		path->moveTo(rc.left,rc.CenterPoint().y);
		path->rCubicTo(100,50,200,-50,300,100);

		IRenderTarget *pRT = pCanvasWnd->GetRenderTarget(NULL,GRT_OFFSCREEN);
		Gra***ntItem items[2];
		items[0].cr=RGBA(255,0,0,255);
		items[0].pos=0;
		items[1].cr=RGBA(0,255,0,255);
		items[1].pos = 1.0;
		Gra***ntInfo info;
		info.type=linear;
		info.angle=0;

		SAutoRefPtr<IPenS> pen,oldPen;
		pRT->CreatePen(PS_SOLID,0,5,&pen);
		pRT->SelectObject(pen,(IRenderObj**)&oldPen);
		pRT->DrawGra***ntPath(path,items,2,&info);
		pRT->SelectObject(oldPen);

		pCanvasWnd->ReleaseRenderTarget(pRT);
	}
}

工程代码： Soui4Wizard1.zip (29.6 KB, 下载次数: 4, 售价: 1 SOUI币)

2023-10-9 16:11 上传

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caryone

感谢大佬的分享