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Diffstat (limited to 'forms/source/richtext/richtextimplcontrol.hxx')
| -rw-r--r-- | forms/source/richtext/richtextimplcontrol.hxx | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/forms/source/richtext/richtextimplcontrol.hxx b/forms/source/richtext/richtextimplcontrol.hxx new file mode 100644 index 000000000000..619766bbfc4e --- /dev/null +++ b/forms/source/richtext/richtextimplcontrol.hxx @@ -0,0 +1,196 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ +#ifndef FORMS_SOURCE_RICHTEXT_RICHTEXTIMPLCONTOL_HXX +#define FORMS_SOURCE_RICHTEXT_RICHTEXTIMPLCONTOL_HXX + +#include "rtattributehandler.hxx" +#include "richtextviewport.hxx" +#include "richtextengine.hxx" +#include <vcl/scrbar.hxx> +#include <editeng/editdata.hxx> + +#include <map> + +class EditView; +class EditStatus; +class Window; +class SvxScriptSetItem; +//........................................................................ +namespace frm +{ +//........................................................................ + + class ITextAttributeListener; + class ITextSelectionListener; + class RichTextViewPort; + //==================================================================== + //= RichTextControlImpl + //==================================================================== + class RichTextControlImpl : public IEngineStatusListener + { + typedef ::std::map< AttributeId, AttributeState > StateCache; + typedef ::std::map< AttributeId, ::rtl::Reference< IAttributeHandler > > AttributeHandlerPool; + typedef ::std::map< AttributeId, ITextAttributeListener* > AttributeListenerPool; + + StateCache m_aLastKnownStates; + AttributeHandlerPool m_aAttributeHandlers; + AttributeListenerPool m_aAttributeListeners; + + ESelection m_aLastKnownSelection; + + Control* m_pAntiImpl; + RichTextViewPort* m_pViewport; + ScrollBar* m_pHScroll; + ScrollBar* m_pVScroll; + ScrollBarBox* m_pScrollCorner; + RichTextEngine* m_pEngine; + EditView* m_pView; + ITextAttributeListener* m_pTextAttrListener; + ITextSelectionListener* m_pSelectionListener; + bool m_bHasEverBeenShown; + + public: + struct GrantAccess { friend class RichTextControl; private: GrantAccess() { } }; + inline EditView* getView( const GrantAccess& ) const { return m_pView; } + inline RichTextEngine* getEngine( const GrantAccess& ) const { return m_pEngine; } + inline Window* getViewport( const GrantAccess& ) const { return m_pViewport; } + + public: + RichTextControlImpl( Control* _pAntiImpl, RichTextEngine* _pEngine, + ITextAttributeListener* _pTextAttrListener, ITextSelectionListener* _pSelectionListener ); + virtual ~RichTextControlImpl(); + + /** updates the cache with the state of all attribute values from the given set, notifies + the listener if the state changed + */ + void updateAllAttributes( ); + + /** updates the cache with the state of the attribute given by which id, notifies + the listener if the state changed + */ + void updateAttribute( AttributeId _nAttribute ); + + /// enables the callback for a particular attribute + void enableAttributeNotification( AttributeId _nAttributeId, ITextAttributeListener* _pListener = NULL ); + + /// disables the change notifications for a particular attribute + void disableAttributeNotification( AttributeId _nAttributeId ); + + /// executes a toggle of the given attribute + bool executeAttribute( const SfxItemSet& _rCurrentAttribs, SfxItemSet& _rNewAttribs, AttributeId _nAttribute, const SfxPoolItem* _pArgument, ScriptType _nForScriptType ); + + /// retrieves the state of the given attribute from the cache + AttributeState getAttributeState( AttributeId _nAttributeId ) const; + + /** normalizes the given item so that the state of script dependent attributes + is correct considering the current script type + + There are some attributes which are script dependent, e.g. the CharPosture. This means + that in real, there are 3 attributes for this, one for every possible script type (latin, + asian, complex). However, to the out world, we behave as if there is only one attribute: + E.g., if the outter world asks for the state of the "CharPosture" attribute, we return + the state of either CharPostureLatin, CharPostureAsian, or CharPostureComplex, depending + on the script type of the current selection. (In real, it may be more complex since + the current selection may contain more than one script type.) + + This method normalizes a script dependent attribute, so that it's state takes into account + the currently selected script type. + */ + void normalizeScriptDependentAttribute( SvxScriptSetItem& _rScriptSetItem ); + + // gets the script type of the selection in our edit view (with fallback) + ScriptType getSelectedScriptType() const; + + /** re-arranges the view and the scrollbars + */ + void layoutWindow(); + + /** to be called when the style of our window changed + */ + void notifyStyleChanged(); + + /** to be called when the zoom of our window changed + */ + void notifyZoomChanged(); + + /** to be called when the STATE_CHANGE_INITSHOW event arrives + */ + void notifyInitShow(); + + // VCL "overrides" + void SetBackgroundColor( ); + void SetBackgroundColor( const Color& _rColor ); + + void SetReadOnly( bool _bReadOnly ); + bool IsReadOnly() const; + + void SetHideInactiveSelection( bool _bHide ); + bool GetHideInactiveSelection() const; + + /// draws the control onto a given output device + void Draw( OutputDevice* _pDev, const Point& _rPos, const Size& _rSize, ULONG _nFlags ); + + /// handles command events arrived at the anti-impl control + long HandleCommand( const CommandEvent& _rEvent ); + + private: + // updates the cache with the state provided by the given attribut handler + void implUpdateAttribute( AttributeHandlerPool::const_iterator _pHandler ); + + // updates the cache with the given state, and calls listeners (if necessary) + void implCheckUpdateCache( AttributeId _nAttribute, const AttributeState& _rState ); + + // updates range and position of our scrollbars + void updateScrollbars(); + + // determines whether automatic (soft) line breaks are ON + bool windowHasAutomaticLineBreak(); + + /// hides or shows our scrollbars, according to the current WinBits of the window + void ensureScrollbars(); + + /// ensures that our "automatic line break" setting matches the current WinBits of the window + void ensureLineBreakSetting(); + + inline bool hasVScrollBar( ) const { return m_pVScroll != NULL; } + inline bool hasHScrollBar( ) const { return m_pHScroll != NULL; } + + // IEngineStatusListener overridables + virtual void EditEngineStatusChanged( const EditStatus& _rStatus ); + + private: + DECL_LINK( OnInvalidateAllAttributes, void* ); + DECL_LINK( OnHScroll, ScrollBar* ); + DECL_LINK( OnVScroll, ScrollBar* ); + }; + +//........................................................................ +} // namespace frm +//........................................................................ + +#endif // FORMS_SOURCE_RICHTEXT_RICHTEXTIMPLCONTOL_HXX + |