Initial release

engine/vendor/vst3sdk/vstgui4/vstgui/uidescription-scripting/detail/drawable.cpp

@@ -0,0 +1,214 @@
+// This file is part of VSTGUI. It is subject to the license terms
+// in the LICENSE file found in the top-level directory of this
+// distribution and at http://github.com/steinbergmedia/vstgui/LICENSE
+
+#include "drawable.h"
+#include "converters.h"
+#include "../../lib/cframe.h"
+#include "../../lib/cdrawcontext.h"
+#include "../../lib/cgraphicspath.h"
+#include "../../lib/cgraphicstransform.h"
+#include "../../uidescription/detail/uiviewcreatorattributes.h"
+
+//------------------------------------------------------------------------
+namespace VSTGUI {
+namespace ScriptingInternal {
+using namespace std::literals;
+using namespace TJS;
+
+//------------------------------------------------------------------------
+//------------------------------------------------------------------------
+//------------------------------------------------------------------------
+void JavaScriptDrawable::onDraw (CDrawContext* context, const CRect& rect, const CRect& viewSize)
+{
+	if (!scriptObject)
+	{
+		auto dashLength = std::round ((viewSize.getWidth () * 2 + viewSize.getHeight () * 2) / 40.);
+		CLineStyle ls (CLineStyle::kLineCapButt, CLineStyle::kLineJoinMiter, 0,
+					   {dashLength, dashLength});
+
+		auto lineWidth = 1.;
+		auto size = viewSize;
+		size.inset (lineWidth / 2., lineWidth / 2.);
+		context->setLineStyle (ls);
+		context->setLineWidth (lineWidth);
+		context->setFrameColor (kBlackCColor);
+		context->drawRect (size, kDrawStroked);
+
+		ls.setDashPhase (dashLength * lineWidth);
+		context->setLineStyle (ls);
+		context->setFrameColor (kWhiteCColor);
+		context->drawRect (size, kDrawStroked);
+		return;
+	}
+	auto scriptContext = scriptObject->getContext ();
+	if (!scriptContext)
+		return;
+	context->saveGlobalState ();
+
+	drawContext.setDrawContext (context, scriptContext->getUIDescription ());
+
+	CDrawContext::Transform tm (*context, CGraphicsTransform ().translate (viewSize.getTopLeft ()));
+
+	auto rectVar = makeScriptRect (rect);
+	auto scriptRoot = scriptContext->getRoot ();
+	ScriptAddChildScoped scs (*scriptRoot, "view"sv, *scriptObject);
+	ScriptAddChildScoped scs2 (*scriptRoot, "context"sv, drawContext);
+	ScriptAddChildScoped scs3 (*scriptRoot, "rect"sv, rectVar);
+	scriptContext->evalScript ("view.draw(context, rect);"sv);
+
+	drawContext.setDrawContext (nullptr, nullptr);
+
+	context->restoreGlobalState ();
+}
+
+//------------------------------------------------------------------------
+void JavaScriptDrawable::setup (ViewScriptObject* inObject) { scriptObject = inObject; }
+
+//------------------------------------------------------------------------
+bool JavaScriptDrawable::onDrawFocusOnTop ()
+{
+	auto scriptContext = scriptObject->getContext ();
+	if (!scriptContext)
+		return false;
+
+	if (scriptObject->getVar ()->findChild ("drawFocusOnTop"sv) == nullptr)
+		return false;
+
+	auto scriptRoot = scriptContext->getRoot ();
+	ScriptAddChildScoped scs (*scriptRoot, "view"sv, *scriptObject);
+	auto boolResult = scriptContext->evalScript ("view.drawFocusOnTop();"sv);
+	return boolResult->isNumeric () ? boolResult->getInt () : false;
+}
+
+//------------------------------------------------------------------------
+bool JavaScriptDrawable::onGetFocusPath (CGraphicsPath& outPath, CCoord focusWidth,
+										 const CRect& viewSize)
+{
+	if (auto scriptContext = scriptObject->getContext ())
+	{
+		if (scriptObject->getVar ()->findChild ("getFocusPath"sv) == nullptr)
+		{
+			auto r = viewSize;
+			outPath.addRect (r);
+			r.extend (focusWidth, focusWidth);
+			outPath.addRect (r);
+			return true;
+		}
+
+		auto scriptRoot = scriptContext->getRoot ();
+		auto path = makeOwned<CGraphicsPath> (outPath);
+		ScriptObject focusWidthVar;
+		focusWidthVar->setDouble (focusWidth);
+		ScriptAddChildScoped scs (*scriptRoot, "view"sv, *scriptObject);
+		ScriptAddChildScoped scs2 (*scriptRoot, "path"sv, makeGraphicsPathScriptObject (path));
+		ScriptAddChildScoped scs3 (*scriptRoot, "focusWidth"sv, focusWidthVar);
+		auto boolResult = scriptContext->evalScript ("view.getFocusPath(path, focusWidth);"sv);
+		if (boolResult->isNumeric ())
+		{
+			if (boolResult->getInt () == 1)
+			{
+				CGraphicsTransform tm;
+				tm.translate (viewSize.left, viewSize.top);
+				outPath.addPath (*path, &tm);
+				return true;
+			}
+			return false;
+		}
+	}
+	return false;
+}
+
+//------------------------------------------------------------------------
+//------------------------------------------------------------------------
+//------------------------------------------------------------------------
+void JavaScriptDrawableView::drawRect (CDrawContext* context, const CRect& rect)
+{
+	onDraw (context, rect, getViewSize ());
+}
+
+//------------------------------------------------------------------------
+bool JavaScriptDrawableView::drawFocusOnTop ()
+{
+	if (wantsFocus ())
+		return onDrawFocusOnTop ();
+	return false;
+}
+
+//------------------------------------------------------------------------
+bool JavaScriptDrawableView::getFocusPath (CGraphicsPath& outPath)
+{
+	if (wantsFocus ())
+		return onGetFocusPath (outPath, getFrame ()->getFocusWidth (), getViewSize ());
+	return false;
+}
+
+//------------------------------------------------------------------------
+//------------------------------------------------------------------------
+//------------------------------------------------------------------------
+void JavaScriptDrawableControl::draw (CDrawContext* context) { drawRect (context, getViewSize ()); }
+
+//------------------------------------------------------------------------
+void JavaScriptDrawableControl::drawRect (CDrawContext* context, const CRect& rect)
+{
+	onDraw (context, rect, getViewSize ());
+}
+
+//------------------------------------------------------------------------
+bool JavaScriptDrawableControl::drawFocusOnTop ()
+{
+	if (wantsFocus ())
+		return onDrawFocusOnTop ();
+	return false;
+}
+
+//------------------------------------------------------------------------
+bool JavaScriptDrawableControl::getFocusPath (CGraphicsPath& outPath)
+{
+	if (wantsFocus ())
+		return onGetFocusPath (outPath, getFrame ()->getFocusWidth (), getViewSize ());
+	return false;
+}
+
+//------------------------------------------------------------------------
+//------------------------------------------------------------------------
+//------------------------------------------------------------------------
+IdStringPtr JavaScriptDrawableViewCreator::getViewName () const { return "JavaScriptDrawableView"; }
+
+//------------------------------------------------------------------------
+IdStringPtr JavaScriptDrawableViewCreator::getBaseViewName () const
+{
+	return UIViewCreator::kCView;
+}
+
+//------------------------------------------------------------------------
+CView* JavaScriptDrawableViewCreator::create (const UIAttributes& attributes,
+											  const IUIDescription* description) const
+{
+	return new JavaScriptDrawableView (CRect ());
+}
+
+//------------------------------------------------------------------------
+//------------------------------------------------------------------------
+//------------------------------------------------------------------------
+IdStringPtr JavaScriptDrawableControlCreator::getViewName () const
+{
+	return "JavaScriptDrawableControl";
+}
+
+//------------------------------------------------------------------------
+IdStringPtr JavaScriptDrawableControlCreator::getBaseViewName () const
+{
+	return UIViewCreator::kCControl;
+}
+
+//------------------------------------------------------------------------
+CView* JavaScriptDrawableControlCreator::create (const UIAttributes& attributes,
+												 const IUIDescription* description) const
+{
+	return new JavaScriptDrawableControl (CRect ());
+}
+
+//------------------------------------------------------------------------
+} // ScriptingInternal
+} // VSTGUI