568 lines
19 KiB
C
568 lines
19 KiB
C
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/////////////////////////////////////////////////////////////////////////////
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// Name: splitter.h
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// Purpose: interface of wxSplitterWindow
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// Author: wxWidgets team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#define wxSP_NOBORDER 0x0000
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#define wxSP_THIN_SASH 0x0000 // NB: the default is 3D sash
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#define wxSP_NOSASH 0x0010
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#define wxSP_PERMIT_UNSPLIT 0x0040
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#define wxSP_LIVE_UPDATE 0x0080
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#define wxSP_3DSASH 0x0100
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#define wxSP_3DBORDER 0x0200
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#define wxSP_NO_XP_THEME 0x0400
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#define wxSP_BORDER wxSP_3DBORDER
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#define wxSP_3D (wxSP_3DBORDER | wxSP_3DSASH)
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enum wxSplitMode
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{
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wxSPLIT_HORIZONTAL = 1,
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wxSPLIT_VERTICAL
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};
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enum
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{
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wxSPLIT_DRAG_NONE,
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wxSPLIT_DRAG_DRAGGING,
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wxSPLIT_DRAG_LEFT_DOWN
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};
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/**
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@class wxSplitterWindow
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This class manages up to two subwindows. The current view can be split
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into two programmatically (perhaps from a menu command), and unsplit
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either programmatically or via the wxSplitterWindow user interface.
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@beginStyleTable
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@style{wxSP_3D}
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Draws a 3D effect border and sash.
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@style{wxSP_THIN_SASH}
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Draws a thin sash.
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@style{wxSP_3DSASH}
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Draws a 3D effect sash (part of default style).
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@style{wxSP_3DBORDER}
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Synonym for wxSP_BORDER.
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@style{wxSP_BORDER}
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Draws a standard border.
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@style{wxSP_NOBORDER}
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No border (default).
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@style{wxSP_NO_XP_THEME}
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Under Windows XP, switches off the attempt to draw the splitter
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using Windows XP theming, so the borders and sash will take on the
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pre-XP look.
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@style{wxSP_PERMIT_UNSPLIT}
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Always allow to unsplit, even with the minimum pane size other than zero.
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@style{wxSP_LIVE_UPDATE}
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Don't draw XOR line but resize the child windows immediately.
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@endStyleTable
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@beginEventEmissionTable{wxSplitterEvent}
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@event{EVT_SPLITTER_SASH_POS_CHANGING(id, func)}
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The sash position is in the process of being changed.
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May be used to modify the position of the tracking bar to properly
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reflect the position that would be set if the drag were to be completed
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at this point. Processes a @c wxEVT_SPLITTER_SASH_POS_CHANGING event.
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@event{EVT_SPLITTER_SASH_POS_CHANGED(id, func)}
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The sash position was changed. May be used to modify the sash position
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before it is set, or to prevent the change from taking place.
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Processes a @c wxEVT_SPLITTER_SASH_POS_CHANGED event.
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@event{EVT_SPLITTER_UNSPLIT(id, func)}
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The splitter has been just unsplit. Processes a @c wxEVT_SPLITTER_UNSPLIT event.
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@event{EVT_SPLITTER_DCLICK(id, func)}
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The sash was double clicked. The default behaviour is to unsplit the
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window when this happens (unless the minimum pane size has been set
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to a value greater than zero). Processes a @c wxEVT_SPLITTER_DOUBLECLICKED event.
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@endEventTable
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@library{wxcore}
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@category{miscwnd}
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@see wxSplitterEvent, @ref overview_splitterwindow
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*/
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class wxSplitterWindow : public wxWindow
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{
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public:
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/**
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Default constructor
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*/
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wxSplitterWindow();
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/**
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Constructor for creating the window.
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@param parent
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The parent of the splitter window.
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@param id
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The window identifier.
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@param pos
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The window position.
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@param size
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The window size.
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@param style
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The window style. See wxSplitterWindow.
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@param name
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The window name.
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@remarks
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After using this constructor, you must create either one or two
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subwindows with the splitter window as parent, and then call one
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of Initialize(), SplitVertically() and SplitHorizontally() in order
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to set the pane(s).
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You can create two windows, with one hidden when not being shown;
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or you can create and delete the second pane on demand.
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@see Initialize(), SplitVertically(), SplitHorizontally(), Create()
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*/
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wxSplitterWindow(wxWindow* parent, wxWindowID id = wxID_ANY,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = wxSP_3D,
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const wxString& name = "splitterWindow");
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/**
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Destroys the wxSplitterWindow and its children.
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*/
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virtual ~wxSplitterWindow();
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/**
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Creation function, for two-step construction.
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See wxSplitterWindow() for details.
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*/
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bool Create(wxWindow* parent, wxWindowID id = wxID_ANY,
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const wxPoint& point = wxDefaultPosition,
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const wxSize& size = wxDefaultSize, long style = wxSP_3D,
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const wxString& name = "splitter");
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/**
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Returns the current minimum pane size (defaults to zero).
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@see SetMinimumPaneSize()
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*/
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int GetMinimumPaneSize() const;
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/**
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Returns the current sash gravity.
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@see SetSashGravity()
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*/
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double GetSashGravity() const;
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/**
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Returns the current sash position.
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@see SetSashPosition()
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*/
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int GetSashPosition() const;
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/**
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Returns the default sash size in pixels or 0 if it is invisible.
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@see GetDefaultSashSize(), IsSashInvisible(), SetSashSize()
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*/
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int GetSashSize() const;
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/**
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Returns the default sash size in pixels.
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The size of the sash is its width for a vertically split window and its
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height for a horizontally split one. Its other direction is the same as
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the client size of the window in the corresponding direction.
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The default sash size is platform-dependent because it conforms to the
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current platform look-and-feel and cannot be changed.
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@since 2.9.4
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*/
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int GetDefaultSashSize() const;
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/**
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Gets the split mode.
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@see SetSplitMode(), SplitVertically(), SplitHorizontally().
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*/
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wxSplitMode GetSplitMode() const;
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/**
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Returns the left/top or only pane.
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*/
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wxWindow* GetWindow1() const;
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/**
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Returns the right/bottom pane.
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*/
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wxWindow* GetWindow2() const;
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/**
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Initializes the splitter window to have one pane.
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The child window is shown if it is currently hidden.
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@param window
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The pane for the unsplit window.
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@remarks This should be called if you wish to initially view only a
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single pane in the splitter window.
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@see SplitVertically(), SplitHorizontally()
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*/
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void Initialize(wxWindow* window);
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/**
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Returns @true if the sash is invisible even when the window is split, @false otherwise.
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@remark This is a shortcut for HasFlag(wxSP_NOSASH)
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@see SetSashInvisible()
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@since 2.9.4
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*/
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bool IsSashInvisible() const;
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/**
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Returns @true if the window is split, @false otherwise.
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*/
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bool IsSplit() const;
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/**
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Application-overridable function called when the sash is double-clicked with
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the left mouse button.
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@param x
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The x position of the mouse cursor.
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@param y
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The y position of the mouse cursor.
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@remarks The default implementation of this function calls Unsplit if the
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minimum pane size is zero.
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@see Unsplit()
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*/
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virtual void OnDoubleClickSash(int x, int y);
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/**
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Application-overridable function called when the sash position is changed by
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user. It may return @false to prevent the change or @true to allow it.
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@param newSashPosition
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The new sash position (always positive or zero)
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@remarks The default implementation of this function verifies that the
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sizes of both panes of the splitter are greater than
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minimum pane size.
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*/
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virtual bool OnSashPositionChange(int newSashPosition);
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/**
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Application-overridable function called when the window is unsplit, either
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programmatically or using the wxSplitterWindow user interface.
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@param removed
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The window being removed.
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@remarks The default implementation of this function simply hides
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removed. You may wish to delete the window.
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*/
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virtual void OnUnsplit(wxWindow* removed);
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/**
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This function replaces one of the windows managed by the wxSplitterWindow with
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another one. It is in general better to use it instead of calling Unsplit()
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and then resplitting the window back because it will provoke much less flicker
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(if any). It is valid to call this function whether the splitter has two
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windows or only one.
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Both parameters should be non-@NULL and @a winOld must specify one of the
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windows managed by the splitter. If the parameters are incorrect or the window
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couldn't be replaced, @false is returned. Otherwise the function will return
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@true, but please notice that it will not delete the replaced window and you
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may wish to do it yourself.
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@see GetMinimumPaneSize()
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*/
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bool ReplaceWindow(wxWindow* winOld, wxWindow* winNew);
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/**
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Sets the minimum pane size.
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@param paneSize
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Minimum pane size in pixels.
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@remarks The default minimum pane size is zero, which means that either
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pane can be reduced to zero by dragging the sash, thus
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removing one of the panes. To prevent this behaviour
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(and veto out-of-range sash dragging), set a minimum
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size, for example 20 pixels. If the wxSP_PERMIT_UNSPLIT
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style is used when a splitter window is created, the
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window may be unsplit even if minimum size is non-zero.
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@see GetMinimumPaneSize()
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*/
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void SetMinimumPaneSize(int paneSize);
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/**
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Sets the sash gravity.
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@param gravity
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The sash gravity. Value between 0.0 and 1.0.
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@remarks
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Gravity is real factor which controls position of sash while resizing
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wxSplitterWindow. Gravity tells wxSplitterWindow how much will left/top
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window grow while resizing.
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Example values:
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- 0.0: only the bottom/right window is automatically resized
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- 0.5: both windows grow by equal size
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- 1.0: only left/top window grows
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Gravity should be a real value between 0.0 and 1.0.
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Default value of sash gravity is 0.0.
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That value is compatible with previous (before gravity was introduced)
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behaviour of wxSplitterWindow.
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@see GetSashGravity()
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*/
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void SetSashGravity(double gravity);
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/**
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Sets the sash position.
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@param position
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The sash position in pixels.
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@param redraw
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If @true, resizes the panes and redraws the sash and border.
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@remarks Does not currently check for an out-of-range value.
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@see GetSashPosition()
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*/
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void SetSashPosition(int position, bool redraw = true);
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/**
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Returns the default sash size in pixels or 0 if it is invisible.
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@see GetDefaultSashSize(), GetSashSize(), IsSashInvisible()
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*/
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void SetSashSize(int size);
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/**
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Sets the split mode.
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@param mode
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Can be wxSPLIT_VERTICAL or wxSPLIT_HORIZONTAL.
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@remarks Only sets the internal variable; does not update the display.
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@see GetSplitMode(), SplitVertically(), SplitHorizontally().
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*/
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void SetSplitMode(int mode);
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/**
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Sets whether the sash should be invisible, even when the window is
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split.
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When the sash is invisible, it doesn't appear on the screen at all and,
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in particular, doesn't allow the user to resize the windows.
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@remarks Only sets the internal variable; does not update the display.
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@param invisible
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If @true, the sash is always invisible, else it is shown when the
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window is split.
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@see IsSashInvisible()
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@since 2.9.4
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*/
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void SetSashInvisible(bool invisible=true);
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/**
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Initializes the top and bottom panes of the splitter window.
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The child windows are shown if they are currently hidden.
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@param window1
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The top pane.
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@param window2
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The bottom pane.
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@param sashPosition
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The initial position of the sash. If this value is positive,
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it specifies the size of the upper pane. If it is negative, its
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absolute value gives the size of the lower pane.
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Finally, specify 0 (default) to choose the default position
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(half of the total window height).
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@return @true if successful, @false otherwise (the window was already split).
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@remarks This should be called if you wish to initially view two panes.
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It can also be called at any subsequent time, but the application
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should check that the window is not currently split using IsSplit().
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@see SplitVertically(), IsSplit(), Unsplit()
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*/
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virtual bool SplitHorizontally(wxWindow* window1, wxWindow* window2,
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int sashPosition = 0);
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/**
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Initializes the left and right panes of the splitter window.
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The child windows are shown if they are currently hidden.
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@param window1
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The left pane.
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@param window2
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The right pane.
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@param sashPosition
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The initial position of the sash. If this value is positive, it
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specifies the size of the left pane. If it is negative, it is
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absolute value gives the size of the right pane.
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Finally, specify 0 (default) to choose the default position
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(half of the total window width).
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@return @true if successful, @false otherwise (the window was already split).
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@remarks This should be called if you wish to initially view two panes.
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It can also be called at any subsequent time, but the
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application should check that the window is not currently
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split using IsSplit().
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@see SplitHorizontally(), IsSplit(), Unsplit().
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*/
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virtual bool SplitVertically(wxWindow* window1, wxWindow* window2,
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int sashPosition = 0);
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/**
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Unsplits the window.
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@param toRemove
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The pane to remove, or @NULL to remove the right or bottom pane.
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@return @true if successful, @false otherwise (the window was not split).
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@remarks This call will not actually delete the pane being removed; it
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calls OnUnsplit() which can be overridden for the desired
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behaviour. By default, the pane being removed is hidden.
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@see SplitHorizontally(), SplitVertically(), IsSplit(), OnUnsplit()
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*/
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bool Unsplit(wxWindow* toRemove = NULL);
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/**
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Causes any pending sizing of the sash and child panes to take place
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immediately.
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Such resizing normally takes place in idle time, in order to wait for
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layout to be completed. However, this can cause unacceptable flicker as
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the panes are resized after the window has been shown.
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To work around this, you can perform window layout (for example by
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sending a size event to the parent window), and then call this function,
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before showing the top-level window.
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||
|
*/
|
||
|
void UpdateSize();
|
||
|
};
|
||
|
|
||
|
|
||
|
|
||
|
/**
|
||
|
@class wxSplitterEvent
|
||
|
|
||
|
This class represents the events generated by a splitter control.
|
||
|
|
||
|
Also there is only one event class, the data associated to the different events
|
||
|
is not the same and so not all accessor functions may be called for each event.
|
||
|
The documentation mentions the kind of event(s) for which the given accessor
|
||
|
function makes sense: calling it for other types of events will result
|
||
|
in assert failure (in debug mode) and will return meaningless results.
|
||
|
|
||
|
@beginEventTable{wxSplitterEvent}
|
||
|
@event{EVT_SPLITTER_SASH_POS_CHANGING(id, func)}
|
||
|
The sash position is in the process of being changed.
|
||
|
May be used to modify the position of the tracking bar to properly
|
||
|
reflect the position that would be set if the drag were to be completed
|
||
|
at this point. Processes a @c wxEVT_SPLITTER_SASH_POS_CHANGING event.
|
||
|
@event{EVT_SPLITTER_SASH_POS_CHANGED(id, func)}
|
||
|
The sash position was changed. May be used to modify the sash position
|
||
|
before it is set, or to prevent the change from taking place.
|
||
|
Processes a @c wxEVT_SPLITTER_SASH_POS_CHANGED event.
|
||
|
@event{EVT_SPLITTER_UNSPLIT(id, func)}
|
||
|
The splitter has been just unsplit. Processes a @c wxEVT_SPLITTER_UNSPLIT event.
|
||
|
@event{EVT_SPLITTER_DCLICK(id, func)}
|
||
|
The sash was double clicked. The default behaviour is to unsplit the
|
||
|
window when this happens (unless the minimum pane size has been set
|
||
|
to a value greater than zero). Processes a @c wxEVT_SPLITTER_DOUBLECLICKED event.
|
||
|
@endEventTable
|
||
|
|
||
|
@library{wxcore}
|
||
|
@category{events}
|
||
|
|
||
|
@see wxSplitterWindow, @ref overview_events
|
||
|
*/
|
||
|
class wxSplitterEvent : public wxNotifyEvent
|
||
|
{
|
||
|
public:
|
||
|
/**
|
||
|
Constructor. Used internally by wxWidgets only.
|
||
|
*/
|
||
|
wxSplitterEvent(wxEventType eventType = wxEVT_NULL,
|
||
|
wxSplitterWindow* splitter = NULL);
|
||
|
|
||
|
/**
|
||
|
Returns the new sash position.
|
||
|
|
||
|
May only be called while processing
|
||
|
@c wxEVT_SPLITTER_SASH_POS_CHANGING and
|
||
|
@c wxEVT_SPLITTER_SASH_POS_CHANGED events.
|
||
|
*/
|
||
|
int GetSashPosition() const;
|
||
|
|
||
|
/**
|
||
|
Returns a pointer to the window being removed when a splitter window
|
||
|
is unsplit.
|
||
|
|
||
|
May only be called while processing
|
||
|
@c wxEVT_SPLITTER_UNSPLIT events.
|
||
|
*/
|
||
|
wxWindow* GetWindowBeingRemoved() const;
|
||
|
|
||
|
/**
|
||
|
Returns the x coordinate of the double-click point.
|
||
|
|
||
|
May only be called while processing
|
||
|
@c wxEVT_SPLITTER_DOUBLECLICKED events.
|
||
|
*/
|
||
|
int GetX() const;
|
||
|
|
||
|
/**
|
||
|
Returns the y coordinate of the double-click point.
|
||
|
|
||
|
May only be called while processing
|
||
|
@c wxEVT_SPLITTER_DOUBLECLICKED events.
|
||
|
*/
|
||
|
int GetY() const;
|
||
|
|
||
|
/**
|
||
|
In the case of @c wxEVT_SPLITTER_SASH_POS_CHANGED events,
|
||
|
sets the new sash position.
|
||
|
In the case of @c wxEVT_SPLITTER_SASH_POS_CHANGING events,
|
||
|
sets the new tracking bar position so visual feedback during dragging will
|
||
|
represent that change that will actually take place. Set to -1 from
|
||
|
the event handler code to prevent repositioning.
|
||
|
|
||
|
May only be called while processing
|
||
|
@c wxEVT_SPLITTER_SASH_POS_CHANGING and
|
||
|
@c wxEVT_SPLITTER_SASH_POS_CHANGED events.
|
||
|
|
||
|
@param pos
|
||
|
New sash position.
|
||
|
*/
|
||
|
void SetSashPosition(int pos);
|
||
|
};
|
||
|
|
||
|
|
||
|
wxEventType wxEVT_SPLITTER_SASH_POS_CHANGED;
|
||
|
wxEventType wxEVT_SPLITTER_SASH_POS_CHANGING;
|
||
|
wxEventType wxEVT_SPLITTER_DOUBLECLICKED;
|
||
|
wxEventType wxEVT_SPLITTER_UNSPLIT;
|