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2026-08-16 18:24:52 +07:00

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C++

// 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
#pragma once
#include "../lib/vstguifwd.h"
#include "iuidescription.h"
#include "iviewfactory.h"
#include "iviewcreator.h"
namespace VSTGUI {
//-----------------------------------------------------------------------------
/// @brief Default view factory
/// @ingroup new_in_4_0
//-----------------------------------------------------------------------------
class UIViewFactory : public NonAtomicReferenceCounted, public IViewFactory
#if VSTGUI_LIVE_EDITING
, public IViewFactoryEditingSupport
#endif
{
public:
UIViewFactory ();
~UIViewFactory () noexcept override = default;
// IViewFactory
CView* createView (const UIAttributes& attributes, const IUIDescription* description) const override;
bool applyAttributeValues (CView* view, const UIAttributes& attributes, const IUIDescription* desc) const override;
bool applyCustomViewAttributeValues (CView* customView, IdStringPtr baseViewName, const UIAttributes& attributes, const IUIDescription* desc) const override;
bool getAttributeValue (CView* view, const std::string& attributeName, std::string& stringValue,
const IUIDescription* desc) const override;
bool viewIsTypeOf (CView* view, const std::string& typeName) const override;
static void registerViewCreator (const IViewCreator& viewCreator);
static void unregisterViewCreator (const IViewCreator& viewCreator);
#if VSTGUI_LIVE_EDITING
using StringPtrList = std::list<const std::string*>;
using StringList = std::list<std::string>;
using ViewAndDisplayNameList = std::list<std::pair<const std::string*, const std::string>>;
bool getAttributeNamesForView (CView* view, StringList& attributeNames) const override;
IViewCreator::AttrType getAttributeType (CView* view, const std::string& attributeName) const override;
void collectRegisteredViewNames (StringPtrList& viewNames, IdStringPtr baseClassNameFilter = nullptr) const override;
bool getAttributesForView (CView* view, const IUIDescription* desc, UIAttributes& attr) const override;
// list type support
bool getPossibleAttributeListValues (CView* view, const std::string& attributeName, StringPtrList& values) const override;
bool getAttributeValueRange (CView* view, const std::string& attributeName, double& minValue, double& maxValue) const override;
ViewAndDisplayNameList collectRegisteredViewAndDisplayNames (IdStringPtr baseClassNameFilter = nullptr) const override;
UTF8StringPtr getViewDisplayName (CView* view) const override;
#if ENABLE_UNIT_TESTS
bool disableRememberAttributes {false};
#endif
#endif
protected:
void evaluateAttributesAndRemember (CView* view, const UIAttributes& attributes, UIAttributes& evaluatedAttributes, const IUIDescription* description) const;
CView* createViewByName (const std::string* className, const UIAttributes& attributes, const IUIDescription* description) const;
#if VSTGUI_LIVE_EDITING
static size_t createHash (const std::string& str);
void rememberAttribute (CView* view, IdStringPtr attrName, const std::string& value) const;
bool getRememberedAttribute (CView* view, IdStringPtr attrName, std::string& value) const;
#endif
};
} // VSTGUI