controlbar.h

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

/////////////////////////////////////////////////////////////////////////////
// Name:        controlbar.h
// Purpose:     Central header file for control-bar related classes
//
// Author:      Aleksandras Gluchovas <mailto:[e-mail]>
// Modified by:
// Created:     06/09/98
// RCS-ID:      $Id: controlbar.h,v 1.24 2005/09/23 12:46:56 MR Exp $
// Copyright:   (c) Aleksandras Gluchovas
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef __CONTROLBAR_G__
#define __CONTROLBAR_G__

#include "wx/defs.h"
#include "wx/string.h"
#include "wx/pen.h"
#include "wx/window.h"
#include "wx/dynarray.h"
#include "wx/fl/fldefs.h"

#define WXCONTROLBAR_VERSION      1.3

// forward declarations

class  WXDLLIMPEXP_FL wxFrameLayout;

class  WXDLLIMPEXP_FL cbDockPane;
class  WXDLLIMPEXP_FL cbUpdatesManagerBase;
class  WXDLLIMPEXP_FL cbBarDimHandlerBase;
class  WXDLLIMPEXP_FL cbPluginBase;
class  WXDLLIMPEXP_FL cbPluginEvent;
class  WXDLLIMPEXP_FL cbPaneDrawPlugin;

class WXDLLIMPEXP_FL cbBarInfo;
class WXDLLIMPEXP_FL cbRowInfo;
class WXDLLIMPEXP_FL cbDimInfo;
class WXDLLIMPEXP_FL cbCommonPaneProperties;

typedef cbBarInfo* BarInfoPtrT;
typedef cbRowInfo* RowInfoPtrT;

WXFL_DEFINE_ARRAY_PTR( BarInfoPtrT, BarArrayT );
WXFL_DEFINE_ARRAY_PTR( RowInfoPtrT, RowArrayT );

// control bar states

#define wxCBAR_DOCKED_HORIZONTALLY 0
#define wxCBAR_DOCKED_VERTICALLY   1
#define wxCBAR_FLOATING            2
#define wxCBAR_HIDDEN              3

// the states are enumerated above
#define MAX_BAR_STATES             4

// control bar alignments

#if !defined(FL_ALIGN_TOP)

#define FL_ALIGN_TOP        0
#define FL_ALIGN_BOTTOM     1
#define FL_ALIGN_LEFT       2
#define FL_ALIGN_RIGHT      3

#endif

// one pane for each alignment
#define MAX_PANES      4

// masks for each pane

#define FL_ALIGN_TOP_PANE        0x0001
#define FL_ALIGN_BOTTOM_PANE   0x0002
#define FL_ALIGN_LEFT_PANE       0x0004
#define FL_ALIGN_RIGHT_PANE   0x0008

#define wxALL_PANES    0x000F

// enumeration of hittest results, see cbDockPane::HitTestPaneItems(..)

enum CB_HITTEST_RESULT
{
    CB_NO_ITEMS_HITTED,

    CB_UPPER_ROW_HANDLE_HITTED,
    CB_LOWER_ROW_HANDLE_HITTED,
    CB_LEFT_BAR_HANDLE_HITTED,
    CB_RIGHT_BAR_HANDLE_HITTED,
    CB_BAR_CONTENT_HITTED
};

/*
Helper class, used for spying for unhandled mouse events on control bars
and forwarding them to the frame layout.
*/

class WXDLLIMPEXP_FL cbBarSpy : public wxEvtHandler
{
public:
    DECLARE_DYNAMIC_CLASS( cbBarSpy )

    wxFrameLayout* mpLayout;
    wxWindow*      mpBarWnd;

public:
        // Default constructor.

    cbBarSpy(void);

        // Constructor, taking a parent pane.

    cbBarSpy( wxFrameLayout* pPanel );

        // Sets the bar window.

    void SetBarWindow( wxWindow* pWnd );

        // Performs special event processing.

    virtual bool ProcessEvent(wxEvent& event);
};

/*
wxFrameLayout manages containment and docking of control bars,
which can be docked along the top, bottom, right, or left side of the
parent frame.
*/

class WXDLLIMPEXP_FL wxFrameLayout : public wxEvtHandler
{
public:
        // Default constructor, used only for serialization.

    wxFrameLayout();

        // Constructor, taking parent window, the (MDI) client of the parent if there
        // is one, and flag specifying whether to activate the layout.

    wxFrameLayout( wxWindow* pParentFrame,
                   wxWindow* pFrameClient = NULL,
                   bool      activateNow  = true );

        // Destructor. It does not destroy the bar windows.

    virtual ~wxFrameLayout();

        // Enables floating behaviour. By default floating of control bars is on.

    virtual void EnableFloating( bool enable = true );

        // Activate can be called after some other layout has been deactivated,
        // and this one must take over the current contents of the frame window.
        //
        // Effectively hooks itself to the frame window, re-displays all non-hidden
        // bar windows and repaints the decorations.

    virtual void Activate();

        // Deactivate unhooks itself from frame window, and hides all non-hidden windows.
        //
        // Note: two frame layouts should not be active at the same time in the
        // same frame window, since it would cause messy overlapping of bar windows
        // from both layouts.

    virtual void Deactivate();

        // Hides the bar windows, and also the client window if present.

    void HideBarWindows();

        // Destroys the bar windows.

    virtual void DestroyBarWindows();

        // Passes the client window (e.g. MDI client window) to be controlled by
        // frame layout, the size and position of which should be adjusted to be
        // surrounded by controlbar panes, whenever the frame is resized or the dimensions
        // of control panes change.

    void SetFrameClient( wxWindow* pFrameClient );

        // Returns the frame client, or NULL if not present.

    wxWindow* GetFrameClient();

        // Returns the parent frame.

    wxWindow& GetParentFrame() { return *mpFrame; }

        // Returns an array of panes. Used by update managers.

    cbDockPane** GetPanesArray() { return mPanes; }

        // Returns a pane for the given alignment. See pane alignment types.

    cbDockPane* GetPane( int alignment )

        { return mPanes[alignment]; }

        // Adds bar information to the frame layout. The appearance of the layout is not refreshed
        // immediately; RefreshNow() can be called if necessary.
        //
        // Notes: the argument pBarWnd can by NULL, resulting in bar decorations to be drawn
        // around the empty rectangle (filled with default background colour).
        // Argument dimInfo can be reused for adding any number of bars, since
        // it is not used directly - instead its members are copied. If the dimensions
        // handler is present, its instance is shared (reference counted). The dimension
        // handler should always be allocated on the heap.

        // pBarWnd is the window to be managed.

        // dimInfo contains dimension information.

        // alignment is a value such as FL_ALIGN_TOP.

        // rowNo is the vertical position or row in the pane (if in docked state).

        // columnPos is the horizontal position within the row in pixels (if in docked state).

        // name is a name by which the bar can be referred in layout customization dialogs.

        // If spyEvents is true, input events for the bar should be "spyed" in order
        // to forward unhandled mouse clicks to the frame layout, for example to enable
        // easy draggablity of toolbars just by clicking on their interior regions.
        // For widgets like text/tree control this value should be false,
        // since there's no certain way to detect  whether the event was actually handled.

        // state is the initial state, such as wxCBAR_DOCKED_HORIZONTALLY,
        // wxCBAR_FLOATING, wxCBAR_HIDDEN.

    virtual void AddBar( wxWindow*        pBarWnd,
                         const cbDimInfo&       dimInfo,

                         // defaults:
                         int alignment    = FL_ALIGN_TOP,
                         int rowNo        = 0,
                         int columnPos    = 0,
                         const wxString& name = wxT("bar"),
                         bool spyEvents    = false,
                         int state        = wxCBAR_DOCKED_HORIZONTALLY
                       );

        // ReddockBar can be used for repositioning existing bars. The given bar is first removed
        // from the pane it currently belongs to, and inserted into the pane, which "matches"
        // the given rectangular area. If pToPane is not NULL, the bar is docked to this given pane.
        // To dock a bar which is floating, use the wxFrameLayout::DockBar method.

    virtual bool RedockBar( cbBarInfo* pBar, const wxRect& shapeInParent,
                            cbDockPane* pToPane = NULL, bool updateNow = true );

        // Finds the bar in the framelayout, by name.

    cbBarInfo* FindBarByName( const wxString& name );

        // Finds the bar in the framelayout, by window.

    cbBarInfo* FindBarByWindow( const wxWindow* pWnd );

        // Gets an array of bars.

    BarArrayT& GetBars();

        // Changes the bar's docking state (see possible control bar states).

    void SetBarState( cbBarInfo* pBar, int newStatem, bool updateNow );

        // Toggles the bar between visible and hidden.

    void InverseVisibility( cbBarInfo* pBar );

        // Reflects changes in bar information structure visually.
        // For example, moves the bar, changes its dimension information,
        // or changes the pane to which it is docked.

    void ApplyBarProperties( cbBarInfo* pBar );

        // Removes the bar from the layout permanently, and hides its corresponding window if present.

    void RemoveBar( cbBarInfo* pBar );

        // Recalculates the layout of panes, and all bars/rows in each pane.

    virtual void RecalcLayout( bool repositionBarsNow = false );

        // Returns the client height.

    int     GetClientHeight();

        // Returns the client width.

    int     GetClientWidth();

        // Returns the client's rectangle.

    wxRect& GetClientRect()        { return mClntWndBounds;     }

        // Returns a reference to the updates manager.
        // Note: in future, the updates manager will become a normal plugin.

    cbUpdatesManagerBase& GetUpdatesManager();

        // Destroys the previous manager if any, and sets the new one.

    void SetUpdatesManager( cbUpdatesManagerBase* pUMgr );

        // Gets the pane properties for the given alignment.

    virtual void GetPaneProperties( cbCommonPaneProperties& props, int alignment = FL_ALIGN_TOP );

        // Sets the pane properties for the given alignment.
        // Note: changing properties of panes does not result immediate on-screen update.

    virtual void SetPaneProperties( const cbCommonPaneProperties& props,
                                    int paneMask = wxALL_PANES );

        // Sets the margins for the given panes.
        // The margins should go into cbCommonPaneProperties in the future.
        //
        // Note: this method should be called before any custom plugins are attached.

    virtual void SetMargins( int top, int bottom, int left, int right,
                             int paneMask = wxALL_PANES );

        // Sets the pane background colour.

    virtual void SetPaneBackground( const wxColour& colour );

        // Recalculates layout and performs on-screen update of all panes.

    void RefreshNow( bool recalcLayout = true );

        // Event handler for a size event.

    void OnSize       ( wxSizeEvent&  event );

        // Event handler for a left down button event.

    void OnLButtonDown( wxMouseEvent& event );

        // Event handler for a left doubleclick button event.

    void OnLDblClick  ( wxMouseEvent& event );

        // Event handler for a left button up event.

    void OnLButtonUp  ( wxMouseEvent& event );

        // Event handler for a right button down event.

    void OnRButtonDown( wxMouseEvent& event );

        // Event handler for a right button up event.

    void OnRButtonUp  ( wxMouseEvent& event );

        // Event handler for a mouse move event.

    void OnMouseMove  ( wxMouseEvent& event );

        // This function should be used instead of passing the event to the ProcessEvent method
        // of the top-level plugin directly. This method checks if events are currently
        // captured and ensures that plugin-event is routed correctly.

    virtual void FirePluginEvent( cbPluginEvent& event );

        // Captures user input events for the given plugin.
        // Input events are: mouse movement, mouse clicks, keyboard input.

    virtual void CaptureEventsForPlugin ( cbPluginBase* pPlugin );

        // Releases user input events for the given plugin.
        // Input events are: mouse movement, mouse clicks, keyboard input

    virtual void ReleaseEventsFromPlugin( cbPluginBase* pPlugin );

        // Called by plugins; also captures the mouse in the parent frame.

    void CaptureEventsForPane( cbDockPane* toPane );

        // Called by plugins; also releases mouse in the parent frame.

    void ReleaseEventsFromPane( cbDockPane* fromPane );

        // Returns the current top-level plugin (the one that receives events first,
        // except if input events are currently captured by some other plugin).

    virtual cbPluginBase& GetTopPlugin();

        // Hooking custom plugins to frame layout.
        //
        // Note: when hooking one plugin on top of the other,
        // use SetNextHandler or similar methods
        // of wxEvtHandler class to compose the chain of plugins,
        // than pass the left-most handler in this chain to
        // the above methods (assuming that events are delegated
        // from left-most towards right-most handler).
        //
        // This secenario is very inconvenient and "low-level",
        // so use the Add/Push/PopPlugin methods instead.

    virtual void SetTopPlugin( cbPluginBase* pPlugin );

        // Similar to wxWindow's "push/pop-event-handler" methods, execept
        // that the plugin is deleted upon "popping".

    virtual void PushPlugin( cbPluginBase* pPugin );