Mac Power 1997 December/MACPOWER-1997-12.ISO.7z/MACPOWER-1997-12.ISO/AMUG/PROGRAMMING/Raven 1.2 Examples.sit/Raven 1.2 Examples/Quill/Source/ViewCommands.h

Text File | 1997-07-28 | 13KB | 569 lines

/*
 *  File:       ViewCommands.h
 *  Summary:       Command objects for manipulating views.
 *  Written by: Jesse Jones
 *
 *  Copyright ｩ 1996 Jesse Jones.
 *    For conditions of distribution and use, see copyright notice in ZTypes.h
 *
 *  Change History (most recent first):
 *
 *         <->     8/29/96    JDJ        Created
 */

#pragma once

#include <ZGeometry.h>
#include <ZHandle.h>
#include <ZUndoableCommand.h>
#include <ZView.h>


//-----------------------------------
//    Forward References
//
class CViewContainer;
class TPane;
class TView;

template<class TYPE, class ALLOCATOR> class list;


// ===================================================================================
//    class CResizePaneCommand
// ===================================================================================
class CResizePaneCommand : public TUndoableCommand {

    typedef TUndoableCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CResizePaneCommand();

                        CResizePaneCommand(TPane* pane, const TRect& newFrame);

                        CResizePaneCommand(TPane* pane, const TRect& oldFrame, const TRect& newFrame);

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;

    virtual bool         IsValid() const;

protected:
    virtual void         OnDo();

    virtual void         OnUndo();

    virtual void         OnRedo();

//-----------------------------------
//    Member data
//
protected:
    CViewContainer*    mContainer;
    TSafePtr<TPane>    mPane;
    TRect            mOldFrame;
    TRect            mNewFrame;
};


// ===================================================================================
//    class CPaneEditCommand
// ===================================================================================
class CPaneEditCommand : public TUndoableCommand {

    typedef TUndoableCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CPaneEditCommand();

                        CPaneEditCommand(CViewContainer* container, bool addSelection = true);

                        CPaneEditCommand(CViewContainer* container, TUndoMgr* context, bool addSelection = true);

//-----------------------------------
//    Inherited API
//
public:
    virtual bool         IsValid() const;

//-----------------------------------
//    Types
//
protected:
    struct SInfo {
        TSafePtr<TPane>    pane;
        TSafePtr<TView>    super;
        SPaneInfo        oldInfo;
        SPaneInfo        newInfo;

                        SInfo() : pane(nil), super(nil)            {}

                        SInfo(TPane* subPane) : pane(subPane), super(pane->GetSuperView())    {oldInfo = newInfo = pane->GetInfo();}

            bool         operator==(const SInfo& rhs) const        {return pane == rhs.pane;}

            bool         operator<(const SInfo& rhs) const        {return pane < rhs.pane;}
                        // ･･ Should not be neccessary.

            bool         operator!=(const SInfo& rhs) const        {return pane != rhs.pane;}
    };

//-----------------------------------
//    Member data
//
protected:
    CViewContainer*    mContainer;

    list<SInfo, allocator<SInfo> >*    mPanes;
};


// ===================================================================================
//    class CAddPanesCommand
// ===================================================================================
class CAddPanesCommand : public CPaneEditCommand {

    typedef CPaneEditCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CAddPanesCommand() = 0;

                        CAddPanesCommand(CViewContainer* container, bool addSelection = true);

                        CAddPanesCommand(CViewContainer* container, TUndoMgr* context, bool addSelection = true);

//-----------------------------------
//    New API
//
protected:
    virtual void         OnAdd();

    virtual void         OnRemove();
};


// ===================================================================================
//    class CAddSubPanesCommand
// ===================================================================================
class CAddSubPanesCommand : public CAddPanesCommand {

    typedef CAddPanesCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CAddSubPanesCommand();

                        CAddSubPanesCommand(CViewContainer* container, TView* super, TUndoMgr* context);

//-----------------------------------
//    New API
//
public:
            void         AddPane(TPane* newPane);

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;

protected:
    virtual void         OnDo();

    virtual void         OnUndo();

    virtual void         OnRedo();

//-----------------------------------
//    Member data
//
protected:
    TView*        mSuper;
};


// ===================================================================================
//    class CDeletePanesCommand
// ===================================================================================
class CDeletePanesCommand : public CAddPanesCommand {

    typedef CAddPanesCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CDeletePanesCommand();

                        CDeletePanesCommand(CViewContainer* container);

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;

protected:
    virtual void         OnDo();

    virtual void         OnUndo();

    virtual void         OnRedo();
};


// ===================================================================================
//    class CDuplicatePanesCommand
// ===================================================================================
class CDuplicatePanesCommand : public CAddPanesCommand {

    typedef CAddPanesCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CDuplicatePanesCommand();

                        CDuplicatePanesCommand(CViewContainer* container);

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;

protected:
    virtual void         OnDo();

    virtual void         OnUndo();

    virtual void         OnRedo();
};


// ===================================================================================
//    class CMovePanesCommand
// ===================================================================================
class CMovePanesCommand : public CPaneEditCommand {

    typedef CPaneEditCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CMovePanesCommand();

                        CMovePanesCommand(CViewContainer* container, TView* super, TUndoMgr* context);

//-----------------------------------
//    New API
//
public:
            void         AddPane(TPane* newPane, const TPoint& newLoc);

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;

protected:
    virtual void         OnDo();

    virtual void         OnUndo();

    virtual void         OnRedo();

//-----------------------------------
//    Member data
//
protected:
    TView*        mNewSuper;
};


// ===================================================================================
//    class CCopyPanesCommand
// ===================================================================================
class CCopyPanesCommand : public CAddPanesCommand {

    typedef CAddPanesCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CCopyPanesCommand();

                        CCopyPanesCommand(CViewContainer* container);

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;

protected:
    virtual void         OnDo();

    virtual void         OnUndo();

    virtual void         OnRedo();

//-----------------------------------
//    Member data
//
protected:
    THandle        mOldScrap;
    THandle        mNewScrap;
};


// ===================================================================================
//    class CCutPanesCommand
// ===================================================================================
class CCutPanesCommand : public CCopyPanesCommand {

    typedef CCopyPanesCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CCutPanesCommand();

                        CCutPanesCommand(CViewContainer* container);

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;

protected:
    virtual void         OnDo();

    virtual void         OnUndo();

    virtual void         OnRedo();
};


// ===================================================================================
//    class CPastePanesCommand
// ===================================================================================
class CPastePanesCommand : public CAddPanesCommand {

    typedef CAddPanesCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CPastePanesCommand();

                        CPastePanesCommand(CViewContainer* container, TView* superView);

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;

protected:
    virtual void         OnDo();

    virtual void         OnUndo();

    virtual void         OnRedo();

//-----------------------------------
//    Member data
//
protected:
    TView*            mSuper;
};


// ===================================================================================
//    class COffsetPanesCommand
// ===================================================================================
class COffsetPanesCommand : public CPaneEditCommand {

    typedef CPaneEditCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~COffsetPanesCommand() = 0;

                        COffsetPanesCommand(CViewContainer* container);

//-----------------------------------
//    Inherited API
//
protected:
    virtual void         OnDo();

    virtual void         OnUndo();

    virtual void         OnRedo();
};


// ===================================================================================
//    class CNudgePaneCommand
// ===================================================================================
class CNudgePaneCommand : public COffsetPanesCommand {

    typedef COffsetPanesCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CNudgePaneCommand();

                        CNudgePaneCommand(CViewContainer* container, char key);
                        // key should be one of the arrow keys

//-----------------------------------
//    New API
//
public:
    virtual bool         CanNudge(CViewContainer* container, char key) const;

    virtual void         Nudge();

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;

protected:
    virtual void         OnDo();

    virtual void         OnUndo();

    virtual void         OnRedo();

//-----------------------------------
//    Member data
//
protected:
    char     mKey;
    bool    mExecuted;
};


// ===================================================================================
//    class CAlignLeftCommand
// ===================================================================================
class CAlignLeftCommand : public COffsetPanesCommand {

    typedef COffsetPanesCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CAlignLeftCommand();

                        CAlignLeftCommand(CViewContainer* container);

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;
};


// ===================================================================================
//    class CAlignRightCommand
// ===================================================================================
class CAlignRightCommand : public COffsetPanesCommand {

    typedef COffsetPanesCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CAlignRightCommand();

                        CAlignRightCommand(CViewContainer* container);

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;
};


// ===================================================================================
//    class CAlignTopCommand
// ===================================================================================
class CAlignTopCommand : public COffsetPanesCommand {

    typedef COffsetPanesCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CAlignTopCommand();

                        CAlignTopCommand(CViewContainer* container);

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;
};


// ===================================================================================
//    class CAlignBottomCommand
// ===================================================================================
class CAlignBottomCommand : public COffsetPanesCommand {

    typedef COffsetPanesCommand Inherited;

//-----------------------------------
//    Initialization/Destruction
//
public:
    virtual             ~CAlignBottomCommand();

                        CAlignBottomCommand(CViewContainer* container);

//-----------------------------------
//    Inherited API
//
public:
    virtual string        GetText() const;
};