/////////////////////////////////////////////////////////////////////////////
-// Name: splitter.h
+// Name: wx/splitter.h
// Purpose: wxSplitterWindow class
// Author: Julian Smart
// Modified by:
// Created: 01/02/97
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Copyright: (c) Julian Smart
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef __SPLITTERH_G__
#define __SPLITTERH_G__
-#ifdef __GNUG__
-#pragma interface "splitter.h"
-#endif
+#include "wx/window.h" // base class declaration
+#include "wx/containr.h" // wxControlContainer
-#include "wx/defs.h"
-#include "wx/window.h"
-#include "wx/string.h"
+class WXDLLEXPORT wxSplitterEvent;
-#define WXSPLITTER_VERSION 1.0
+// ---------------------------------------------------------------------------
+// splitter constants
+// ---------------------------------------------------------------------------
-#define wxSPLIT_HORIZONTAL 1
-#define wxSPLIT_VERTICAL 2
+enum wxSplitMode
+{
+ wxSPLIT_HORIZONTAL = 1,
+ wxSPLIT_VERTICAL
+};
-#define wxSPLIT_DRAG_NONE 0
-#define wxSPLIT_DRAG_DRAGGING 1
-#define wxSPLIT_DRAG_LEFT_DOWN 2
+enum
+{
+ wxSPLIT_DRAG_NONE,
+ wxSPLIT_DRAG_DRAGGING,
+ wxSPLIT_DRAG_LEFT_DOWN
+};
-/*
- * wxSplitterWindow maintains one or two panes, with
- * an optional vertical or horizontal split which
- * can be used with the mouse or programmatically.
- */
+// ---------------------------------------------------------------------------
+// wxSplitterWindow maintains one or two panes, with
+// an optional vertical or horizontal split which
+// can be used with the mouse or programmatically.
+// ---------------------------------------------------------------------------
// TODO:
// 1) Perhaps make the borders sensitive to dragging in order to create a split.
// The MFC splitter window manages scrollbars as well so is able to
// put sash buttons on the scrollbars, but we probably don't want to go down
// this path.
-// 2) for wxWindows 2.0, we must find a way to set the WS_CLIPCHILDREN style
+// 2) for wxWidgets 2.0, we must find a way to set the WS_CLIPCHILDREN style
// to prevent flickering. (WS_CLIPCHILDREN doesn't work in all cases so can't be
// standard).
class WXDLLEXPORT wxSplitterWindow: public wxWindow
{
- DECLARE_DYNAMIC_CLASS(wxSplitterWindow)
-
- public:
+public:
////////////////////////////////////////////////////////////////////////////
// Public API
// Default constructor
- wxSplitterWindow(void);
+ wxSplitterWindow()
+ {
+ Init();
+ }
// Normal constructor
- wxSplitterWindow(wxWindow *parent, wxWindowID id = -1, const wxPoint& pos = wxDefaultPosition,
- const wxSize& size = wxDefaultSize, long style = wxSP_3D|wxCLIP_CHILDREN, const wxString& name = "splitter");
- ~wxSplitterWindow(void);
+ wxSplitterWindow(wxWindow *parent, wxWindowID id = wxID_ANY,
+ const wxPoint& pos = wxDefaultPosition,
+ const wxSize& size = wxDefaultSize,
+ long style = wxSP_3D,
+ const wxString& name = wxT("splitter"))
+ {
+ Init();
+ Create(parent, id, pos, size, style, name);
+ }
+
+ virtual ~wxSplitterWindow();
+
+ bool Create(wxWindow *parent, wxWindowID id = wxID_ANY,
+ const wxPoint& pos = wxDefaultPosition,
+ const wxSize& size = wxDefaultSize,
+ long style = wxSP_3D,
+ const wxString& name = wxT("splitter"));
// Gets the only or left/top pane
- inline wxWindow *GetWindow1(void) { return m_windowOne; }
+ wxWindow *GetWindow1() const { return m_windowOne; }
// Gets the right/bottom pane
- inline wxWindow *GetWindow2(void) { return m_windowTwo; }
+ wxWindow *GetWindow2() const { return m_windowTwo; }
// Sets the split mode
- inline void SetSplitMode(int mode) { m_splitMode = mode; }
+ void SetSplitMode(int mode)
+ {
+ wxASSERT_MSG( mode == wxSPLIT_VERTICAL || mode == wxSPLIT_HORIZONTAL,
+ _T("invalid split mode") );
+
+ m_splitMode = (wxSplitMode)mode;
+ }
// Gets the split mode
- inline int GetSplitMode(void) const { return m_splitMode; };
+ wxSplitMode GetSplitMode() const { return m_splitMode; };
// Initialize with one window
void Initialize(wxWindow *window);
// Associates the given window with window 2, drawing the appropriate sash
// and changing the split mode.
- // Does nothing and returns FALSE if the window is already split.
- // A sashPosition of -1 means choose a default sash position.
- bool SplitVertically(wxWindow *window1, wxWindow *window2, int sashPosition = -1);
- bool SplitHorizontally(wxWindow *window1, wxWindow *window2, int sashPosition = -1);
+ // Does nothing and returns false if the window is already split.
+ // A sashPosition of 0 means choose a default sash position,
+ // negative sashPosition specifies the size of right/lower pane as it's
+ // absolute value rather than the size of left/upper pane.
+ virtual bool SplitVertically(wxWindow *window1,
+ wxWindow *window2,
+ int sashPosition = 0)
+ { return DoSplit(wxSPLIT_VERTICAL, window1, window2, sashPosition); }
+ virtual bool SplitHorizontally(wxWindow *window1,
+ wxWindow *window2,
+ int sashPosition = 0)
+ { return DoSplit(wxSPLIT_HORIZONTAL, window1, window2, sashPosition); }
// Removes the specified (or second) window from the view
// Doesn't actually delete the window.
- bool Unsplit(wxWindow *toRemove = NULL);
+ bool Unsplit(wxWindow *toRemove = (wxWindow *) NULL);
+
+ // Replaces one of the windows with another one (neither old nor new
+ // parameter should be NULL)
+ bool ReplaceWindow(wxWindow *winOld, wxWindow *winNew);
+
+ // Make sure the child window sizes are updated. This is useful
+ // for reducing flicker by updating the sizes before a
+ // window is shown, if you know the overall size is correct.
+ void UpdateSize();
// Is the window split?
- inline bool IsSplit(void) const { return (m_windowTwo != NULL); }
+ bool IsSplit() const { return (m_windowTwo != NULL); }
// Sets the sash size
- inline void SetSashSize(int width) { m_sashSize = width; }
+ void SetSashSize(int width) { m_sashSize = width; }
// Sets the border size
- inline void SetBorderSize(int width) { m_borderSize = width; }
+ void SetBorderSize(int WXUNUSED(width)) { }
// Gets the sash size
- inline int GetSashSize(void) const { return m_sashSize; }
+ int GetSashSize() const;
// Gets the border size
- inline int GetBorderSize(void) const { return m_borderSize; }
+ int GetBorderSize() const;
// Set the sash position
- void SetSashPosition(int position, bool redaw = TRUE);
+ void SetSashPosition(int position, bool redraw = true);
// Gets the sash position
- inline int GetSashPosition(void) const { return m_sashPosition; }
+ int GetSashPosition() const { return m_sashPosition; }
+
+ // Set the sash gravity
+ void SetSashGravity(double gravity);
+
+ // Gets the sash gravity
+ double GetSashGravity() const { return m_sashGravity; }
// If this is zero, we can remove panes by dragging the sash.
- inline void SetMinimumPaneSize(int min) { m_minimumPaneSize = min; }
- inline int GetMinimumPaneSize(void) const { return m_minimumPaneSize; }
+ void SetMinimumPaneSize(int min);
+ int GetMinimumPaneSize() const { return m_minimumPaneSize; }
+
+ // NB: the OnXXX() functions below are for backwards compatibility only,
+ // don't use them in new code but handle the events instead!
+
+ // called when the sash position is about to change, may return a new value
+ // for the sash or -1 to prevent the change from happening at all
+ virtual int OnSashPositionChanging(int newSashPosition);
+
+ // Called when the sash position is about to be changed, return
+ // false from here to prevent the change from taking place.
+ // Repositions sash to minimum position if pane would be too small.
+ // newSashPosition here is always positive or zero.
+ virtual bool OnSashPositionChange(int newSashPosition);
// If the sash is moved to an extreme position, a subwindow
// is removed from the splitter window, and the app is
// notified. The app should delete or hide the window.
- virtual void OnUnsplit(wxWindow *removed) { removed->Show(FALSE); }
+ virtual void OnUnsplit(wxWindow *removed);
// Called when the sash is double-clicked.
// The default behaviour is to remove the sash if the
// Adjusts the panes
void OnSize(wxSizeEvent& event);
- // Draws borders
- void DrawBorders(wxDC& dc);
+ // In live mode, resize child windows in idle time
+ void OnInternalIdle();
// Draws the sash
- void DrawSash(wxDC& dc);
+ virtual void DrawSash(wxDC& dc);
// Draws the sash tracker (for whilst moving the sash)
- void DrawSashTracker(int x, int y);
+ virtual void DrawSashTracker(int x, int y);
// Tests for x, y over sash
- bool SashHitTest(int x, int y, int tolerance = 2);
+ virtual bool SashHitTest(int x, int y, int tolerance = 5);
// Resizes subwindows
- void SizeWindows(void);
+ virtual void SizeWindows();
+
+ void SetNeedUpdating(bool needUpdating) { m_needUpdating = needUpdating; }
+ bool GetNeedUpdating() const { return m_needUpdating ; }
+
+#ifdef __WXMAC__
+ virtual bool MacClipGrandChildren() const { return true ; }
+#endif
+
+protected:
+ // event handlers
+#if defined(__WXMSW__) || defined(__WXMAC__)
+ void OnSetCursor(wxSetCursorEvent& event);
+#endif // wxMSW
+
+ // send the given event, return false if the event was processed and vetoed
+ // by the user code
+ inline bool DoSendEvent(wxSplitterEvent& event);
+
+ // common part of all ctors
+ void Init();
+
+ // common part of SplitVertically() and SplitHorizontally()
+ bool DoSplit(wxSplitMode mode,
+ wxWindow *window1, wxWindow *window2,
+ int sashPosition);
- // Initialize colours
- void InitColours(void);
+ // adjusts sash position with respect to min. pane and window sizes
+ int AdjustSashPosition(int sashPos) const;
- protected:
- int m_splitMode;
+ // get either width or height depending on the split mode
+ int GetWindowSize() const;
+
+ // convert the user specified sash position which may be > 0 (as is), < 0
+ // (specifying the size of the right pane) or 0 (use default) to the real
+ // position to be passed to DoSetSashPosition()
+ int ConvertSashPosition(int sashPos) const;
+
+ // set the real sash position, sashPos here must be positive
+ //
+ // returns true if the sash position has been changed, false otherwise
+ bool DoSetSashPosition(int sashPos);
+
+ // set the sash position and send an event about it having been changed
+ void SetSashPositionAndNotify(int sashPos);
+
+ // callbacks executed when we detect that the mouse has entered or left
+ // the sash
+ virtual void OnEnterSash();
+ virtual void OnLeaveSash();
+
+ // set the cursor appropriate for the current split mode
+ void SetResizeCursor();
+
+ // redraw the splitter if its "hotness" changed if necessary
+ void RedrawIfHotSensitive(bool isHot);
+
+ // return the best size of the splitter equal to best sizes of its
+ // subwindows
+ virtual wxSize DoGetBestSize() const;
+
+
+ wxSplitMode m_splitMode;
wxWindow* m_windowOne;
wxWindow* m_windowTwo;
int m_dragMode;
int m_oldX;
int m_oldY;
- int m_borderSize;
- int m_sashSize; // Sash width or height
int m_sashPosition; // Number of pixels from left or top
+ double m_sashGravity;
+ int m_sashSize;
+ wxSize m_lastSize;
+ int m_requestedSashPosition;
+ int m_sashPositionCurrent; // while dragging
int m_firstX;
int m_firstY;
int m_minimumPaneSize;
- wxCursor* m_sashCursorWE;
- wxCursor* m_sashCursorNS;
- wxPen* m_sashTrackerPen;
- wxPen* m_lightShadowPen;
- wxPen* m_mediumShadowPen;
- wxPen* m_darkShadowPen;
- wxPen* m_hilightPen;
- wxBrush* m_faceBrush;
- wxPen* m_facePen;
-DECLARE_EVENT_TABLE()
+ wxCursor m_sashCursorWE;
+ wxCursor m_sashCursorNS;
+ wxPen *m_sashTrackerPen;
+
+ // when in live mode, set this to true to resize children in idle
+ bool m_needUpdating:1;
+ bool m_permitUnsplitAlways:1;
+ bool m_isHot:1;
+ bool m_checkRequestedSashPosition:1;
+
+private:
+ WX_DECLARE_CONTROL_CONTAINER();
+
+ DECLARE_DYNAMIC_CLASS(wxSplitterWindow)
+ DECLARE_EVENT_TABLE()
+ DECLARE_NO_COPY_CLASS(wxSplitterWindow)
};
-#endif
+// ----------------------------------------------------------------------------
+// event class and macros
+// ----------------------------------------------------------------------------
+
+// we reuse the same class for all splitter event types because this is the
+// usual wxWin convention, but the three event types have different kind of
+// data associated with them, so the accessors can be only used if the real
+// event type matches with the one for which the accessors make sense
+class WXDLLEXPORT wxSplitterEvent : public wxNotifyEvent
+{
+public:
+ wxSplitterEvent(wxEventType type = wxEVT_NULL,
+ wxSplitterWindow *splitter = (wxSplitterWindow *)NULL)
+ : wxNotifyEvent(type)
+ {
+ SetEventObject(splitter);
+ if (splitter) m_id = splitter->GetId();
+ }
+
+ // SASH_POS_CHANGED methods
+
+ // setting the sash position to -1 prevents the change from taking place at
+ // all
+ void SetSashPosition(int pos)
+ {
+ wxASSERT( GetEventType() == wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED
+ || GetEventType() == wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGING);
+
+ m_data.pos = pos;
+ }
+
+ int GetSashPosition() const
+ {
+ wxASSERT( GetEventType() == wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED
+ || GetEventType() == wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGING);
+
+ return m_data.pos;
+ }
+
+ // UNSPLIT event methods
+ wxWindow *GetWindowBeingRemoved() const
+ {
+ wxASSERT( GetEventType() == wxEVT_COMMAND_SPLITTER_UNSPLIT );
+
+ return m_data.win;
+ }
+
+ // DCLICK event methods
+ int GetX() const
+ {
+ wxASSERT( GetEventType() == wxEVT_COMMAND_SPLITTER_DOUBLECLICKED );
+
+ return m_data.pt.x;
+ }
+
+ int GetY() const
+ {
+ wxASSERT( GetEventType() == wxEVT_COMMAND_SPLITTER_DOUBLECLICKED );
+
+ return m_data.pt.y;
+ }
+
+private:
+ friend class WXDLLEXPORT wxSplitterWindow;
+
+ // data for the different types of event
+ union
+ {
+ int pos; // position for SASH_POS_CHANGED event
+ wxWindow *win; // window being removed for UNSPLIT event
+ struct
+ {
+ int x, y;
+ } pt; // position of double click for DCLICK event
+ } m_data;
+
+ DECLARE_DYNAMIC_CLASS_NO_COPY(wxSplitterEvent)
+};
+
+typedef void (wxEvtHandler::*wxSplitterEventFunction)(wxSplitterEvent&);
+
+#define wxSplitterEventHandler(func) \
+ (wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxSplitterEventFunction, &func)
+
+#define wx__DECLARE_SPLITTEREVT(evt, id, fn) \
+ wx__DECLARE_EVT1(wxEVT_COMMAND_SPLITTER_ ## evt, id, wxSplitterEventHandler(fn))
+
+#define EVT_SPLITTER_SASH_POS_CHANGED(id, fn) \
+ wx__DECLARE_SPLITTEREVT(SASH_POS_CHANGED, id, fn)
+
+#define EVT_SPLITTER_SASH_POS_CHANGING(id, fn) \
+ wx__DECLARE_SPLITTEREVT(SASH_POS_CHANGING, id, fn)
+
+#define EVT_SPLITTER_DCLICK(id, fn) \
+ wx__DECLARE_SPLITTEREVT(DOUBLECLICKED, id, fn)
+
+#define EVT_SPLITTER_UNSPLIT(id, fn) \
+ wx__DECLARE_SPLITTEREVT(UNSPLIT, id, fn)
+
+#endif // __SPLITTERH_G__
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