105 lines
3.4 KiB
C
105 lines
3.4 KiB
C
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// NoesisGUI - http://www.noesisengine.com
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// Copyright (c) 2013 Noesis Technologies S.L. All Rights Reserved.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifndef __GUI_TRIGGER_H__
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#define __GUI_TRIGGER_H__
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#include <NsCore/Noesis.h>
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#include <NsGui/CoreApi.h>
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#include <NsCore/String.h>
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#include <NsGui/BaseTrigger.h>
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namespace Noesis
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{
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class BaseSetter;
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template<class T> class UICollection;
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typedef UICollection<BaseSetter> BaseSetterCollection;
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NS_WARNING_PUSH
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NS_MSVC_WARNING_DISABLE(4251 4275)
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Represents a trigger that applies property values or performs actions conditionally.
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///
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/// http://msdn.microsoft.com/en-us/library/system.windows.trigger.aspx
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////////////////////////////////////////////////////////////////////////////////////////////////////
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class NS_GUI_CORE_API Trigger: public BaseTrigger
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{
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public:
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Trigger();
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~Trigger();
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/// Gets or sets the property that returns the value that is compared with the *Value* property
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/// of the trigger
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//@{
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const DependencyProperty* GetProperty() const;
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void SetProperty(const DependencyProperty* property);
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//@}
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/// Gets a collection of Setter objects, which describe the property values to apply when the
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/// specified condition has been met.
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//@{
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BaseSetterCollection* GetSetters() const;
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//@}
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/// Gets or sets the name of the object with the property that causes the associated setters
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/// to be applied.
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//@{
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const char* GetSourceName() const;
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void SetSourceName(const char* name);
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//@}
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/// Gets or sets the value to be compared with the property value of the element. The
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/// comparison is a reference equality check.
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//@{
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BaseComponent* GetValue() const;
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void SetValue(BaseComponent* value);
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//@}
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/// From BaseTrigger
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//@{
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BaseComponent* FindValue(FrameworkElement* target, FrameworkElement* nameScope,
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DependencyObject* object, const DependencyProperty* dp, bool skipSourceName,
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bool skipTargetName) final;
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void Invalidate(FrameworkElement* target, FrameworkElement* nameScope, bool skipSourceName,
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bool skipTargetName, uint8_t priority) final;
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void Invalidate(FrameworkElement* target, FrameworkElement* nameScope,
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FrameworkElement* changedObject, const DependencyProperty* changedProperty,
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const void* oldValue, const void* newValue, bool skipSourceName, bool skipTargetName,
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uint8_t priority) final;
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void Seal() override;
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//@}
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BaseSetterCollection* InternalGetSetters() const; // can return null
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private:
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bool Matches(FrameworkElement* target, FrameworkElement* nameScope, DependencyObject* object,
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const DependencyProperty* dp, bool skipSourceName, bool skipSelf) const;
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bool Matches(FrameworkElement* target, FrameworkElement* nameScope,
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FrameworkElement* changedObject, const DependencyProperty* changedProperty,
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const void* changedValue, bool skipSourceName) const;
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void EnsureSetters() const;
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private:
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String mSourceName;
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const DependencyProperty* mProperty;
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Ptr<BaseComponent> mValue;
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mutable Ptr<BaseSetterCollection> mSetters;
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NS_DECLARE_REFLECTION(Trigger, BaseTrigger)
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};
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NS_WARNING_POP
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}
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#endif
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