X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/021e7626ac2cda0ec39e0673638778a5afd4623e..da8b1d4b3b535aba94d04494f5b6e2b3e47901ee:/include/wx/generic/splitter.h diff --git a/include/wx/generic/splitter.h b/include/wx/generic/splitter.h index 6cbb3453ec..7244535737 100644 --- a/include/wx/generic/splitter.h +++ b/include/wx/generic/splitter.h @@ -1,50 +1,55 @@ ///////////////////////////////////////////////////////////////////////////// -// 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__ +#ifndef _WX_GENERIC_SPLITTER_H_ +#define _WX_GENERIC_SPLITTER_H_ -#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 WXDLLIMPEXP_FWD_CORE 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 +class WXDLLIMPEXP_CORE wxSplitterWindow: public wxWindow { public: @@ -52,15 +57,29 @@ public: // Public API // Default constructor - wxSplitterWindow(); + wxSplitterWindow() + { + Init(); + } // Normal constructor - wxSplitterWindow(wxWindow *parent, wxWindowID id = -1, + wxSplitterWindow(wxWindow *parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, - long style = wxSP_3D|wxCLIP_CHILDREN, - const wxString& name = "splitter"); - ~wxSplitterWindow(); + 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 wxWindow *GetWindow1() const { return m_windowOne; } @@ -69,35 +88,48 @@ public: wxWindow *GetWindow2() const { return m_windowTwo; } // Sets the split mode - void SetSplitMode(int mode) { m_splitMode = mode; } + void SetSplitMode(int mode) + { + wxASSERT_MSG( mode == wxSPLIT_VERTICAL || mode == wxSPLIT_HORIZONTAL, + wxT("invalid split mode") ); + + m_splitMode = (wxSplitMode)mode; + } // Gets the split mode - int GetSplitMode() 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. + // 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); + int sashPosition = 0) + { return DoSplit(wxSPLIT_VERTICAL, window1, window2, sashPosition); } virtual bool SplitHorizontally(wxWindow *window1, wxWindow *window2, - int sashPosition = 0); + 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 = (wxWindow *) NULL); + bool Unsplit(wxWindow *toRemove = 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? bool IsSplit() const { return (m_windowTwo != NULL); } @@ -105,34 +137,47 @@ public: void SetSashSize(int width) { m_sashSize = width; } // Sets the border size - void SetBorderSize(int width) { m_borderSize = width; } + void SetBorderSize(int WXUNUSED(width)) { } // Gets the sash size - int GetSashSize() const { return m_sashSize; } + int GetSashSize() const; // Gets the border size - int GetBorderSize() 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 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. - void SetMinimumPaneSize(int min) { m_minimumPaneSize = min; } + 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. + // 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); + 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 @@ -148,53 +193,221 @@ public: // Handles mouse events void OnMouseEvent(wxMouseEvent& ev); + // Aborts dragging mode + void OnMouseCaptureLost(wxMouseCaptureLostEvent& event); + // 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(); + virtual void SizeWindows(); + + void SetNeedUpdating(bool needUpdating) { m_needUpdating = needUpdating; } + bool GetNeedUpdating() const { return m_needUpdating ; } - // Initialize colours - void InitColours(); +#ifdef __WXMAC__ + virtual bool MacClipGrandChildren() const { return true ; } +#endif protected: - int m_splitMode; + // 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 + 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); + + // adjusts sash position with respect to min. pane and window sizes + int AdjustSashPosition(int sashPos) const; + + // 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_oldX; // current tracker position if not live mode + int m_oldY; // current tracker position if not live mode int m_sashPosition; // Number of pixels from left or top - int m_firstX; - int m_firstY; + double m_sashGravity; + int m_sashSize; + wxSize m_lastSize; + int m_requestedSashPosition; + int m_sashPositionCurrent; // while dragging + wxPoint m_ptStart; // mouse position when dragging started + int m_sashStart; // sash position when dragging started 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; + 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() + wxDECLARE_NO_COPY_CLASS(wxSplitterWindow); +}; + +// ---------------------------------------------------------------------------- +// 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 WXDLLIMPEXP_CORE wxSplitterEvent : public wxNotifyEvent +{ +public: + wxSplitterEvent(wxEventType type = wxEVT_NULL, + wxSplitterWindow *splitter = NULL) + : wxNotifyEvent(type) + { + SetEventObject(splitter); + if (splitter) m_id = splitter->GetId(); + } + wxSplitterEvent(const wxSplitterEvent& event) + : wxNotifyEvent(event), m_data(event.m_data) { } + + // 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; + } + + virtual wxEvent *Clone() const { return new wxSplitterEvent(*this); } + +private: + friend class WXDLLIMPEXP_FWD_CORE 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_ASSIGN(wxSplitterEvent) }; -#endif // __SPLITTERH_G__ +typedef void (wxEvtHandler::*wxSplitterEventFunction)(wxSplitterEvent&); + +#define wxSplitterEventHandler(func) \ + wxEVENT_HANDLER_CAST(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 // _WX_GENERIC_SPLITTER_H_