widgetmodel/alfwidgetmodel/src/alfviewportlayoutattributesetter.cpp
changeset 0 e83bab7cf002
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widgetmodel/alfwidgetmodel/src/alfviewportlayoutattributesetter.cpp	Thu Dec 17 08:56:02 2009 +0200
@@ -0,0 +1,432 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:   Implements attributesetters for ViewPortLayout.
+*
+*/
+
+
+
+//includes
+
+//widget model includes
+#include "alf/alfattributecontainer.h"
+#include "alf/alfattribute.h"
+#include "alf/alfviewportlayoutattributesetter.h"
+#include <alf/alfvisualexception.h>
+#include <alf/alfdataexception.h>
+#include <alf/alfattributeexception.h>
+
+//osn includes
+#include <osn/ustring.h>
+
+//alf includes
+#include <alf/alfvisual.h>
+#include <alf/alfviewportlayout.h>
+
+//dui includes
+#include "alf/attrproperty.h"
+
+//other includes
+#include <libc/string.h>
+
+
+
+//namespaces
+using namespace osncore;
+using namespace duiuimodel::layoutattributes::viewport;
+
+namespace Alf
+    {
+
+// ======== MEMBER FUNCTIONS ========
+
+
+// ---------------------------------------------------------------------------
+// Constructor.
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT AlfViewportLayoutAttributeSetter::AlfViewportLayoutAttributeSetter()
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor.
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT AlfViewportLayoutAttributeSetter::
+    ~AlfViewportLayoutAttributeSetter()
+    {
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+IAlfVariantType* AlfViewportLayoutAttributeSetter::getData(
+    AlfAttribute& aAttr, IAlfMap* aData)
+    {
+    IAlfVariantType* data = 0;
+    const char* dataField = aAttr.getDataField();
+    if (dataField)
+        {
+        data = aData->item(UString(dataField));
+        }
+    return data;
+    }
+
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+int AlfViewportLayoutAttributeSetter::getTime(
+    const AlfAttribute& aAttr, bool aImmediate)
+    {
+    int time = 0;
+    if (!aImmediate)
+        {
+        time = aAttr.getTime();
+        }
+    return time;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT void AlfViewportLayoutAttributeSetter::setAttributeValue(
+    CAlfVisual &aVisual, AlfAttributeContainer* aContainer, IAlfMap* aData)
+    {
+    CAlfViewportLayout* viewportLayout = 
+        dynamic_cast<CAlfViewportLayout*>(&aVisual);
+    if (!viewportLayout)
+        {
+        ALF_THROW (AlfVisualException, EInvalidVisual, "AlfViewportLayoutAttributeSetter")
+        }     
+    AlfCommonLayoutAttributeSetter::setAttributeValue(aVisual,
+                                        aContainer, aData);
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT TAlfCommand* AlfViewportLayoutAttributeSetter::createCommand(
+    CAlfVisual& /*aVisual*/, AlfAttributeContainer* /*aContainer*/,
+    IAlfMap* /*aData*/, int /*aTransitionTime*/, CAlfVisual* /*aRefVisual*/)
+    {
+    TAlfCommand* cmd = 0;
+    return cmd;
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+OSN_EXPORT void AlfViewportLayoutAttributeSetter::createAndSendCommands(
+    CAlfVisual& aVisual,
+    AlfAttributeContainer* aContainer,
+    CAlfVisual* aRefVisual )
+    {
+    // Call the base class implementation.
+    // It goes through its loop and checks if there are attributes that it
+    // handles.
+    AlfCommonLayoutAttributeSetter::createAndSendCommands(aVisual,
+                                        aContainer,aRefVisual);
+    }
+
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+void AlfViewportLayoutAttributeSetter::handleDynamicDataAttribute(
+    CAlfVisual& aVisual, AlfAttribute& aAttr,
+    AlfAttributeContainer& aContainer, IAlfMap* aData)
+    {
+    if (!doHandleDynamicDataAttribute(aVisual, aAttr, aContainer, aData))
+        {
+        AlfCommonLayoutAttributeSetter::handleDynamicDataAttribute(aVisual,
+                                            aAttr, aContainer, aData);
+        }
+    }
+// ---------------------------------------------------------------------------
+// ---------------------------------------------------------------------------
+//
+bool AlfViewportLayoutAttributeSetter::doHandleDynamicDataAttribute(
+    CAlfVisual& aVisual, AlfAttribute& aAttr,
+    AlfAttributeContainer& aContainer, IAlfMap* aData, bool aImmediate)
+    {
+    CAlfViewportLayout* viewportLayout = 
+        dynamic_cast<CAlfViewportLayout*>(&aVisual);
+    if (!viewportLayout)
+        {
+        ALF_THROW (AlfVisualException, EInvalidVisual, "AlfViewportLayoutAttributeSetter")
+        }
+    bool handled = true;
+    if (!aData)
+        {
+        ALF_THROW (AlfDataException, EInvalidVariantDataType, "AlfViewportLayoutAttributeSetter" )
+        }
+    else
+        {
+        const char* attrName = aAttr.name();
+        if (!strcmp( attrName, KVirtualHeight)) //also handles: KVirtualWidth
+            {
+            // item for both virtual height and virtual width should be there.
+            const IAlfVariantType* virtualHeight = getData(aAttr, aData);
+            const IAlfVariantType* virtualWidth = 
+                getData(aContainer.getAttributeByName(KVirtualWidth), aData);
+
+            if (virtualHeight && 
+                virtualHeight->type() == IAlfVariantType::EReal &&
+                virtualWidth && virtualWidth->type() == IAlfVariantType::EReal)
+                {
+                viewportLayout->SetVirtualSize(
+                    TAlfRealSize(virtualWidth->real(),virtualHeight->real()),
+                    getTime(aAttr, aImmediate));
+                }
+            else
+                {
+                ALF_THROW(AlfDataException, EInvalidVariantDataType, "AlfViewportLayoutAttributeSetter")
+                }
+
+            }
+        else if (!strcmp( attrName, KVirtualWidth))
+            {
+            // both virtual height and virtual width should be there
+            // if attribute for virtual height exists,don't do anything as this
+            // will be taken care while looking for attribute for virtual 
+            // height, else throw exception
+            try
+                {
+                AlfAttribute& attrWidth = 
+                    aContainer.getAttributeByName (KVirtualHeight );
+                }
+
+            catch (...)
+                {
+                ALF_THROW(AlfDataException, EIncompleteAttributeValues, "AlfViewportLayoutAttributeSetter")
+                }
+            }
+        //also handles: KViewportWidth    
+        else if (!strcmp( attrName, KViewportHeight)) 
+            {
+            // item for both viewport window height and viewport window width
+            // should be there.
+            const IAlfVariantType* viewportHeight = getData(aAttr, aData);
+            const IAlfVariantType* viewportWidth = 
+                getData(aContainer.getAttributeByName(KViewportWidth), aData);
+
+            if (viewportHeight &&
+                viewportHeight->type() == IAlfVariantType::EReal &&
+                viewportWidth && 
+                viewportWidth->type() == IAlfVariantType::EReal)
+                {
+                viewportLayout->SetViewportSize(
+                    TAlfRealSize(viewportWidth->real(),viewportHeight->real()),
+                    getTime(aAttr, aImmediate));
+                }
+            else
+                {
+                ALF_THROW(AlfDataException, EInvalidVariantDataType, "AlfViewportLayoutAttributeSetter")
+                }    
+            }
+        else if (!strcmp( attrName, KViewportWidth))
+            {
+            // both viewport height and viewport width should be there
+            // if attribute for viewport height exists,don't do anything as
+            // this will be taken care while looking for attribute for 
+            // virtual height, else throw exception
+            try
+                {
+                AlfAttribute& attrWidth = 
+                    aContainer.getAttributeByName (KViewportHeight );
+                }
+
+            catch (...)
+                {
+                ALF_THROW(AlfDataException, EIncompleteAttributeValues, "AlfViewportLayoutAttributeSetter")
+                }
+            }
+        //also handles: KViewportPositionY    
+        else if (!strcmp( attrName, KViewportPositionX)) 
+            {
+            // item for both viewport window X-position and Y-position 
+            // should be there.
+            const IAlfVariantType* viewportPosX = getData(aAttr, aData);
+            const IAlfVariantType* viewportPosY = 
+                   getData(aContainer.getAttributeByName(KViewportPositionY),
+                           aData);
+
+            if (viewportPosX &&
+                viewportPosX->type() == IAlfVariantType::EReal &&
+                viewportPosY && viewportPosY->type() == IAlfVariantType::EReal)
+                {
+                viewportLayout->SetViewportPos(
+                    TAlfRealPoint(viewportPosX->real(),viewportPosY->real()),
+                    getTime(aAttr, aImmediate));
+                }
+            else
+                {
+                ALF_THROW(AlfDataException, EInvalidVariantDataType, "AlfViewportLayoutAttributeSetter")
+                }    
+            }
+        else if (!strcmp( attrName, KViewportPositionY))
+            {
+            // both viewport window X-position and Y-position should be there
+            // if attribute for viewport window X-position exists,don't do 
+            // anything as this will be taken care while looking for attribute
+            // for viewport window X-position, else throw exception
+            try
+                {
+                AlfAttribute& attrWidth = 
+                    aContainer.getAttributeByName (KViewportPositionX );
+                }
+
+            catch (...)
+                {
+                ALF_THROW(AlfDataException, EIncompleteAttributeValues, "AlfViewportLayoutAttributeSetter")
+                }
+            }
+        else
+            {
+            handled = false;
+            }
+        }
+    return handled;
+    }
+
+void AlfViewportLayoutAttributeSetter::handleStaticDataAttribute(
+    CAlfVisual &aVisual, AlfAttribute& aAttr, 
+    AlfAttributeContainer& aContainer, IAlfMap* aData)
+    {
+    // viewport layout does not have any static attribute of its own
+    // check, if dynamic attribute(but set by user as static), if so,
+    // set attributes immediately.
+    if (!doHandleDynamicDataAttribute(aVisual, aAttr,aContainer, aData, true))
+        {
+        AlfCommonLayoutAttributeSetter::handleStaticDataAttribute(
+            aVisual, aAttr, aContainer, aData);
+        }
+    }
+
+void AlfViewportLayoutAttributeSetter::handleDynamicAttribute(
+    CAlfVisual &aVisual, AlfAttribute& aAttr, 
+    AlfAttributeContainer& aContainer)
+    {
+    if (!doHandleDynamicAttribute(aVisual, aAttr, aContainer))
+        {
+        AlfCommonLayoutAttributeSetter::handleDynamicAttribute(
+            aVisual, aAttr, aContainer);
+        }
+    }
+
+bool AlfViewportLayoutAttributeSetter::doHandleDynamicAttribute(
+    CAlfVisual &aVisual, AlfAttribute& aAttr,
+    AlfAttributeContainer& aContainer, bool aImmediate)
+    {
+    CAlfViewportLayout* viewportLayout = 
+        dynamic_cast<CAlfViewportLayout*>(&aVisual);
+    if (!viewportLayout)
+        {
+        ALF_THROW (AlfVisualException, EInvalidVisual, "AlfViewportLayoutAttributeSetter")
+        }
+
+    bool handled = true;
+    const char* attrName = aAttr.name();
+    if (!strcmp(attrName, KVirtualHeight)||!strcmp(attrName, KVirtualWidth))
+        {
+        // both virtual height and virtual width should be there.
+        AlfAttribute& attrWidth = 
+            aContainer.getAttributeByName (KVirtualWidth );
+        AlfAttribute& attrHt = aContainer.getAttributeByName (KVirtualHeight );
+        if(attrWidth.type() == AlfAttributeValueType::EFloat &&
+               attrHt.type() == AlfAttributeValueType::EFloat )
+            {
+            float height = attrHt.realValue();
+            float width = attrWidth.realValue();
+            viewportLayout->SetVirtualSize(
+                TAlfRealSize(width,height),getTime(attrHt, aImmediate));
+            attrHt.setDirty(false);
+            attrWidth.setDirty(false);
+            }
+        else
+            {
+            ALF_THROW ( AlfAttributeException, EInvalidAttributeValue, "AlfViewportLayoutAttributeSetter");
+            }
+        }
+    else if (!strcmp(attrName, KViewportHeight)||
+             !strcmp(attrName, KViewportWidth))
+        {
+        // both viewport window height and width should be there.
+        AlfAttribute& attrWidth = 
+            aContainer.getAttributeByName (KViewportWidth );
+        AlfAttribute& attrHt = 
+            aContainer.getAttributeByName (KViewportHeight );
+        if(attrWidth.type() == AlfAttributeValueType::EFloat &&
+               attrHt.type() == AlfAttributeValueType::EFloat )
+            {
+            float height = attrHt.realValue();
+            float width = attrWidth.realValue();
+            viewportLayout->SetViewportSize(
+                TAlfRealSize(width,height),getTime(attrHt, aImmediate));
+            attrHt.setDirty(false);
+            attrWidth.setDirty(false);
+            }
+        else
+            {
+            ALF_THROW ( AlfAttributeException, EInvalidAttributeValue, "AlfViewportLayoutAttributeSetter");
+            }
+        }
+    else if (!strcmp(attrName, KViewportPositionX)||
+             !strcmp(attrName, KViewportPositionY))
+        {
+        // both viewport window X-position and Y-position should be there.
+        AlfAttribute& attrWidth = 
+            aContainer.getAttributeByName (KViewportPositionY );
+        AlfAttribute& attrHt = 
+            aContainer.getAttributeByName (KViewportPositionX );
+        if(attrWidth.type() == AlfAttributeValueType::EFloat &&
+               attrHt.type() == AlfAttributeValueType::EFloat )
+            {
+            float xPosition = attrHt.realValue();
+            float yPosition = attrWidth.realValue();
+            viewportLayout->SetViewportPos(
+               TAlfRealPoint(xPosition,yPosition),getTime(attrHt, aImmediate));
+            attrHt.setDirty(false);
+            attrWidth.setDirty(false);
+            }
+        else
+            {
+            ALF_THROW ( AlfAttributeException, EInvalidAttributeValue, "AlfViewportLayoutAttributeSetter");
+            }
+        }
+    else
+        {
+        handled = false;
+        }
+
+    return handled;
+    }
+
+void AlfViewportLayoutAttributeSetter::handleStaticAttribute(
+    CAlfVisual& aVisual, AlfAttribute& aAttr,
+    AlfAttributeContainer& aContainer)
+    {
+    // viewport layout does not have any static attribute of its own
+    // check, if dynamic attribute(but set as static by the user),
+    // if so, set attributes immediately.
+    if (!doHandleDynamicAttribute(aVisual, aAttr, aContainer, true))
+        {
+        AlfCommonLayoutAttributeSetter::handleStaticAttribute(aVisual, aAttr, 
+                                            aContainer);
+        }
+    }
+    
+    } // Alf
+