X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ac6bdf4056e08575f4d27b2e451a9dcdbe9742f8..dd90475f716c776721e79b88121b82193f4286ea:/src/generic/splitter.cpp diff --git a/src/generic/splitter.cpp b/src/generic/splitter.cpp index 65fc2e4f30..ab5285ba34 100644 --- a/src/generic/splitter.cpp +++ b/src/generic/splitter.cpp @@ -1,18 +1,14 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: splitter.cpp +// Name: src/generic/splitter.cpp // Purpose: wxSplitterWindow implementation // 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 ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ - #pragma implementation "splitter.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -20,47 +16,70 @@ #pragma hdrstop #endif +#if wxUSE_SPLITTER + +#include "wx/splitter.h" + #ifndef WX_PRECOMP + #include "wx/string.h" + #include "wx/utils.h" + #include "wx/log.h" + + #include "wx/dcclient.h" + #include "wx/dcscreen.h" + #include "wx/window.h" #include "wx/dialog.h" #include "wx/frame.h" + + #include "wx/settings.h" #endif -#include +#include "wx/renderer.h" -#include "wx/string.h" -#include "wx/splitter.h" -#include "wx/dcscreen.h" -#include "wx/settings.h" -#include "wx/log.h" +#include -DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED) -DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGING) -DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPLITTER_DOUBLECLICKED) -DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPLITTER_UNSPLIT) +wxDEFINE_EVENT( wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED, wxSplitterEvent ); +wxDEFINE_EVENT( wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGING, wxSplitterEvent ); +wxDEFINE_EVENT( wxEVT_COMMAND_SPLITTER_DOUBLECLICKED, wxSplitterEvent ); +wxDEFINE_EVENT( wxEVT_COMMAND_SPLITTER_UNSPLIT, wxSplitterEvent ); IMPLEMENT_DYNAMIC_CLASS(wxSplitterWindow, wxWindow) -IMPLEMENT_DYNAMIC_CLASS(wxSplitterEvent, wxCommandEvent) + +/* + TODO PROPERTIES + style wxSP_3D + sashpos (long , 0 ) + minsize (long -1 ) + object, object_ref + orientation +*/ + +IMPLEMENT_DYNAMIC_CLASS(wxSplitterEvent, wxNotifyEvent) BEGIN_EVENT_TABLE(wxSplitterWindow, wxWindow) EVT_PAINT(wxSplitterWindow::OnPaint) EVT_SIZE(wxSplitterWindow::OnSize) - EVT_IDLE(wxSplitterWindow::OnIdle) EVT_MOUSE_EVENTS(wxSplitterWindow::OnMouseEvent) + EVT_MOUSE_CAPTURE_LOST(wxSplitterWindow::OnMouseCaptureLost) +#if defined( __WXMSW__ ) || defined( __WXMAC__) EVT_SET_CURSOR(wxSplitterWindow::OnSetCursor) - - EVT_SPLITTER_SASH_POS_CHANGED(-1, wxSplitterWindow::OnSashPosChanged) - // NB: we borrow OnSashPosChanged for purposes of - // EVT_SPLITTER_SASH_POS_CHANGING since default implementation is identical - EVT_SPLITTER_SASH_POS_CHANGING(-1, wxSplitterWindow::OnSashPosChanged) - EVT_SPLITTER_DCLICK(-1, wxSplitterWindow::OnDoubleClick) - EVT_SPLITTER_UNSPLIT(-1, wxSplitterWindow::OnUnsplitEvent) - - WX_EVENT_TABLE_CONTROL_CONTAINER(wxSplitterWindow) +#endif // wxMSW END_EVENT_TABLE() -WX_DELEGATE_TO_CONTROL_CONTAINER(wxSplitterWindow); +static bool IsLive(wxSplitterWindow* wnd) +{ + // with wxSP_LIVE_UPDATE style the splitter windows are always resized + // following the mouse movement while it drags the sash, without it we only + // draw the sash at the new position but only resize the windows when the + // dragging is finished +#if defined( __WXMAC__ ) && defined(TARGET_API_MAC_OSX) && TARGET_API_MAC_OSX == 1 + return true; // Mac can't paint outside paint event - always need live mode +#else + return wnd->HasFlag(wxSP_LIVE_UPDATE); +#endif +} bool wxSplitterWindow::Create(wxWindow *parent, wxWindowID id, const wxPoint& pos, @@ -71,131 +90,159 @@ bool wxSplitterWindow::Create(wxWindow *parent, wxWindowID id, // allow TABbing from one window to the other style |= wxTAB_TRAVERSAL; - if (!wxWindow::Create(parent, id, pos, size, style, name)) - return FALSE; + if ( !wxWindow::Create(parent, id, pos, size, style, name) ) + return false; - m_permitUnsplitAlways = (style & wxSP_PERMIT_UNSPLIT) != 0; + m_lastSize = GetClientSize(); - if ( style & wxSP_3DSASH ) - m_sashSize = 7; - else - m_sashSize = 3; + m_permitUnsplitAlways = (style & wxSP_PERMIT_UNSPLIT) != 0; - if ( style & wxSP_3DBORDER ) - m_borderSize = 2; - else if ( style & wxSP_BORDER ) - m_borderSize = 1; - else - m_borderSize = 0; + // FIXME: with this line the background is not erased at all under GTK1, + // so temporary avoid it there +#if !defined(__WXGTK__) || defined(__WXGTK20__) + // don't erase the splitter background, it's pointless as we overwrite it + // anyhow + SetBackgroundStyle(wxBG_STYLE_CUSTOM); +#endif - return TRUE; + return true; } void wxSplitterWindow::Init() { - m_container.SetContainerWindow(this); - m_splitMode = wxSPLIT_VERTICAL; - m_permitUnsplitAlways = TRUE; - m_windowOne = (wxWindow *) NULL; - m_windowTwo = (wxWindow *) NULL; + m_permitUnsplitAlways = true; + m_windowOne = NULL; + m_windowTwo = NULL; m_dragMode = wxSPLIT_DRAG_NONE; m_oldX = 0; m_oldY = 0; - m_firstX = 0; - m_firstY = 0; - m_sashSize = 7; - m_borderSize = 2; - m_sashPosition = 0; + m_sashStart = 0; + m_sashPosition = m_requestedSashPosition = 0; + m_sashGravity = 0.0; + m_lastSize = wxSize(0,0); + m_checkRequestedSashPosition = false; m_minimumPaneSize = 0; - m_sashCursorWE = new wxCursor(wxCURSOR_SIZEWE); - m_sashCursorNS = new wxCursor(wxCURSOR_SIZENS); - m_sashTrackerPen = new wxPen(*wxBLACK, 2, wxSOLID); - m_lightShadowPen = (wxPen *) NULL; - m_mediumShadowPen = (wxPen *) NULL; - m_darkShadowPen = (wxPen *) NULL; - m_faceBrush = (wxBrush *) NULL; - m_facePen = (wxPen *) NULL; - m_hilightPen = (wxPen *) NULL; + m_sashCursorWE = wxCursor(wxCURSOR_SIZEWE); + m_sashCursorNS = wxCursor(wxCURSOR_SIZENS); + m_sashTrackerPen = new wxPen(*wxBLACK, 2, wxPENSTYLE_SOLID); - m_borderSize = 0; - m_sashSize = 3; - - InitColours(); - - m_needUpdating = FALSE; + m_needUpdating = false; + m_isHot = false; } wxSplitterWindow::~wxSplitterWindow() { - delete m_sashCursorWE; - delete m_sashCursorNS; delete m_sashTrackerPen; - delete m_lightShadowPen; - delete m_darkShadowPen; - delete m_mediumShadowPen; - delete m_hilightPen; - delete m_facePen; - delete m_faceBrush; } +// ---------------------------------------------------------------------------- +// entering/leaving sash +// ---------------------------------------------------------------------------- + +void wxSplitterWindow::RedrawIfHotSensitive(bool isHot) +{ + if ( wxRendererNative::Get().GetSplitterParams(this).isHotSensitive ) + { + m_isHot = isHot; + + wxClientDC dc(this); + DrawSash(dc); + } + //else: we don't change our appearance, don't redraw to avoid flicker +} + +void wxSplitterWindow::OnEnterSash() +{ + SetResizeCursor(); + + RedrawIfHotSensitive(true); +} + +void wxSplitterWindow::OnLeaveSash() +{ + SetCursor(*wxSTANDARD_CURSOR); + + RedrawIfHotSensitive(false); +} + +void wxSplitterWindow::SetResizeCursor() +{ + SetCursor(m_splitMode == wxSPLIT_VERTICAL ? m_sashCursorWE + : m_sashCursorNS); +} + +// ---------------------------------------------------------------------------- +// other event handlers +// ---------------------------------------------------------------------------- + void wxSplitterWindow::OnPaint(wxPaintEvent& WXUNUSED(event)) { wxPaintDC dc(this); +#ifdef __WXOSX__ + // as subpanels might have a transparent background we must erase the background + // at least on OSX, otherwise traces of the sash will remain + // test with: splitter sample->replace right window + dc.Clear(); +#endif - if ( m_borderSize > 0 ) - DrawBorders(dc); DrawSash(dc); } -void wxSplitterWindow::OnIdle(wxIdleEvent& event) +void wxSplitterWindow::OnInternalIdle() { - if (m_needUpdating) + wxWindow::OnInternalIdle(); + + // if this is the first idle time after a sash position has potentially + // been set, allow SizeWindows to check for a requested size. + if (!m_checkRequestedSashPosition) + { + m_checkRequestedSashPosition = true; SizeWindows(); + return; // it won't needUpdating in this case + } - event.Skip(); + if (m_needUpdating) + SizeWindows(); } void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) { - wxCoord x = (wxCoord)event.GetX(), - y = (wxCoord)event.GetY(); - - // reset the cursor -#ifdef __WXMOTIF__ - SetCursor(* wxSTANDARD_CURSOR); -#endif -#ifdef __WXMSW__ - SetCursor(wxCursor()); -#endif + int x = (int)event.GetX(), + y = (int)event.GetY(); - if (GetWindowStyle() & wxSP_NOSASH) + if ( GetWindowStyle() & wxSP_NOSASH ) + { + event.Skip(); return; + } + + bool isLive = IsLive(this); if (event.LeftDown()) { if ( SashHitTest(x, y) ) { - CaptureMouse(); - + // Start the drag now m_dragMode = wxSPLIT_DRAG_DRAGGING; - if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0) - { - DrawSashTracker(x, y); - } - - m_oldX = x; - m_oldY = y; + // Capture mouse and set the cursor + CaptureMouse(); + SetResizeCursor(); - if ( m_splitMode == wxSPLIT_VERTICAL ) - { - SetCursor(*m_sashCursorWE); - } - else + if ( !isLive ) { - SetCursor(*m_sashCursorNS); + // remember the initial sash position and draw the initial + // shadow sash + m_sashPositionCurrent = m_sashPosition; + + m_oldX = (m_splitMode == wxSPLIT_VERTICAL ? m_sashPositionCurrent : x); + m_oldY = (m_splitMode != wxSPLIT_VERTICAL ? m_sashPositionCurrent : y); + DrawSashTracker(m_oldX, m_oldY); } + + m_ptStart = wxPoint(x,y); + m_sashStart = m_sashPosition; return; } } @@ -203,177 +250,155 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) { // We can stop dragging now and see what we've got. m_dragMode = wxSPLIT_DRAG_NONE; + + // Release mouse and unset the cursor ReleaseMouse(); + SetCursor(* wxSTANDARD_CURSOR); + + // exit if unsplit after doubleclick + if ( !IsSplit() ) + { + return; + } // Erase old tracker - if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0) + if ( !isLive ) { DrawSashTracker(m_oldX, m_oldY); } - // Obtain window size. We are only interested in the dimension the sash - // splits up - int w, h; - GetClientSize(&w, &h); - int window_size = (m_splitMode == wxSPLIT_VERTICAL ? w : h ); - int new_sash_position = - (int) ( m_splitMode == wxSPLIT_VERTICAL ? x : y ); - - wxSplitterEvent eventSplitter(wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED, - this); - eventSplitter.m_data.pos = new_sash_position; - if ( GetEventHandler()->ProcessEvent(eventSplitter) ) + // the position of the click doesn't exactly correspond to + // m_sashPosition, rather it changes it by the distance by which the + // mouse has moved + int diff = m_splitMode == wxSPLIT_VERTICAL ? x - m_ptStart.x : y - m_ptStart.y; + + int posSashNew = OnSashPositionChanging(m_sashStart + diff); + if ( posSashNew == -1 ) { - new_sash_position = eventSplitter.GetSashPosition(); - if ( new_sash_position == -1 ) - { - // change not allowed - return; - } + // change not allowed + return; } if ( m_permitUnsplitAlways || m_minimumPaneSize == 0 ) { // Deal with possible unsplit scenarios - if ( new_sash_position == 0 ) + if ( posSashNew == 0 ) { // We remove the first window from the view wxWindow *removedWindow = m_windowOne; m_windowOne = m_windowTwo; - m_windowTwo = (wxWindow *) NULL; - SendUnsplitEvent(removedWindow); - m_sashPosition = 0; + m_windowTwo = NULL; + OnUnsplit(removedWindow); + wxSplitterEvent eventUnsplit(wxEVT_COMMAND_SPLITTER_UNSPLIT, this); + eventUnsplit.m_data.win = removedWindow; + (void)DoSendEvent(eventUnsplit); + SetSashPositionAndNotify(0); } - else if ( new_sash_position == window_size ) + else if ( posSashNew == GetWindowSize() ) { // We remove the second window from the view wxWindow *removedWindow = m_windowTwo; - m_windowTwo = (wxWindow *) NULL; - SendUnsplitEvent(removedWindow); - m_sashPosition = 0; + m_windowTwo = NULL; + OnUnsplit(removedWindow); + wxSplitterEvent eventUnsplit(wxEVT_COMMAND_SPLITTER_UNSPLIT, this); + eventUnsplit.m_data.win = removedWindow; + (void)DoSendEvent(eventUnsplit); + SetSashPositionAndNotify(0); } else { - m_sashPosition = new_sash_position; + SetSashPositionAndNotify(posSashNew); } } else { - m_sashPosition = new_sash_position; + SetSashPositionAndNotify(posSashNew); } SizeWindows(); } // left up && dragging - else if (event.Moving() && !event.Dragging()) + else if ((event.Moving() || event.Leaving() || event.Entering()) && (m_dragMode == wxSPLIT_DRAG_NONE)) { - // Just change the cursor if required - if ( SashHitTest(x, y) ) - { - if ( m_splitMode == wxSPLIT_VERTICAL ) - { - SetCursor(*m_sashCursorWE); - } - else - { - SetCursor(*m_sashCursorNS); - } - } -#if defined(__WXGTK__) || defined(__WXMSW__) + if ( event.Leaving() || !SashHitTest(x, y) ) + OnLeaveSash(); else - { - // We must set the normal cursor in MSW, because - // if the child window doesn't have a cursor, the - // parent's (splitter window) will be used, and this - // must be the standard cursor. - - // where else do we unset the cursor? - SetCursor(* wxSTANDARD_CURSOR); - } -#endif // __WXGTK__ + OnEnterSash(); } else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING)) { -#ifdef __WXMSW__ - // Otherwise, the cursor sometimes reverts to the normal cursor - // during dragging. - if ( m_splitMode == wxSPLIT_VERTICAL ) - { - SetCursor(*m_sashCursorWE); - } - else + int diff = m_splitMode == wxSPLIT_VERTICAL ? x - m_ptStart.x : y - m_ptStart.y; + + int posSashNew = OnSashPositionChanging(m_sashStart + diff); + if ( posSashNew == -1 ) { - SetCursor(*m_sashCursorNS); + // change not allowed + return; } -#endif - - // Obtain window size. We are only interested in the dimension the sash - // splits up - int new_sash_position = - (int) ( m_splitMode == wxSPLIT_VERTICAL ? x : y ); - wxSplitterEvent eventSplitter(wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGING, - this); - eventSplitter.m_data.pos = new_sash_position; - if ( GetEventHandler()->ProcessEvent(eventSplitter) ) + if ( !isLive ) { - new_sash_position = eventSplitter.GetSashPosition(); - if ( new_sash_position == -1 ) - { - // change not allowed + if ( posSashNew == m_sashPositionCurrent ) return; - } - } - if (new_sash_position == m_sashPosition) - return; + m_sashPositionCurrent = posSashNew; - // Erase old tracker - if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0) - { + // Erase old tracker DrawSashTracker(m_oldX, m_oldY); - } - - if (m_splitMode == wxSPLIT_VERTICAL) - x = new_sash_position; - else - y = new_sash_position; - // Remember old positions - m_oldX = x; - m_oldY = y; + m_oldX = (m_splitMode == wxSPLIT_VERTICAL ? m_sashPositionCurrent : x); + m_oldY = (m_splitMode != wxSPLIT_VERTICAL ? m_sashPositionCurrent : y); #ifdef __WXMSW__ - // As we captured the mouse, we may get the mouse events from outside - // our window - for example, negative values in x, y. This has a weird - // consequence under MSW where we use unsigned values sometimes and - // signed ones other times: the coordinates turn as big positive - // numbers and so the sash is drawn on the *right* side of the window - // instead of the left (or bottom instead of top). Correct this. - if ( (short)m_oldX < 0 ) - m_oldX = 0; - if ( (short)m_oldY < 0 ) - m_oldY = 0; + // As we captured the mouse, we may get the mouse events from outside + // our window - for example, negative values in x, y. This has a weird + // consequence under MSW where we use unsigned values sometimes and + // signed ones other times: the coordinates turn as big positive + // numbers and so the sash is drawn on the *right* side of the window + // instead of the left (or bottom instead of top). Correct this. + if ( (short)m_oldX < 0 ) + m_oldX = 0; + if ( (short)m_oldY < 0 ) + m_oldY = 0; #endif // __WXMSW__ - // Draw new one - if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0) - { + // Draw new one DrawSashTracker(m_oldX, m_oldY); } else { - m_sashPosition = new_sash_position; - m_needUpdating = TRUE; + if ( posSashNew == m_sashPosition ) + return; + + DoSetSashPosition(posSashNew); + + // in live mode, the new position is the actual sash position, clear requested position! + m_requestedSashPosition = INT_MAX; + m_needUpdating = true; } } - else if ( event.LeftDClick() ) + else if ( event.LeftDClick() && m_windowTwo ) + { + OnDoubleClickSash(x, y); + } + else { - wxSplitterEvent eventSplitter(wxEVT_COMMAND_SPLITTER_DOUBLECLICKED, - this); - eventSplitter.m_data.pt.x = x; - eventSplitter.m_data.pt.y = y; + event.Skip(); + } +} + +void wxSplitterWindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event)) +{ + if (m_dragMode != wxSPLIT_DRAG_DRAGGING) + return; - (void)GetEventHandler()->ProcessEvent(eventSplitter); + m_dragMode = wxSPLIT_DRAG_NONE; + + SetCursor(* wxSTANDARD_CURSOR); + + // Erase old tracker + if ( !IsLive(this) ) + { + DrawSashTracker(m_oldX, m_oldY); } } @@ -382,253 +407,123 @@ void wxSplitterWindow::OnSize(wxSizeEvent& event) // only process this message if we're not iconized - otherwise iconizing // and restoring a window containing the splitter has a funny side effect // of changing the splitter position! - wxWindow *parent = GetParent(); - while ( parent && !parent->IsTopLevel() ) + wxWindow *parent = wxGetTopLevelParent(this); + bool iconized; + + wxTopLevelWindow *winTop = wxDynamicCast(parent, wxTopLevelWindow); + if ( winTop ) { - parent = parent->GetParent(); + iconized = winTop->IsIconized(); } - - bool iconized = FALSE; - wxFrame *frame = wxDynamicCast(parent, wxFrame); - if ( frame ) - iconized = frame->IsIconized(); else { - wxDialog *dialog = wxDynamicCast(parent, wxDialog); - if ( dialog ) - iconized = dialog->IsIconized(); - else - wxFAIL_MSG(wxT("should have a top level frame or dialog parent!")); + wxFAIL_MSG(wxT("should have a top level parent!")); + + iconized = false; } if ( iconized ) { + m_lastSize = wxSize(0,0); + event.Skip(); + + return; } - else + + if ( m_windowTwo ) { - int cw, ch; - GetClientSize( &cw, &ch ); - if ( m_windowTwo ) + int w, h; + GetClientSize(&w, &h); + + int size = m_splitMode == wxSPLIT_VERTICAL ? w : h; + + int old_size = m_splitMode == wxSPLIT_VERTICAL ? m_lastSize.x : m_lastSize.y; + + // Don't do anything if the size didn't really change. In particular, + // it is important that we don't reset our sash position because it's + // out of current range in this case as otherwise the really requested + // position would be lost and never set. Wait until we get a real size + // event with our non-initial size to do it. + if ( size == old_size ) + return; + + int delta = (int) ( (size - old_size)*m_sashGravity ); + if ( delta != 0 ) { - if ( m_splitMode == wxSPLIT_VERTICAL ) - { - if ( m_sashPosition >= (cw - 5) ) - m_sashPosition = wxMax(10, cw - 40); - } - if ( m_splitMode == wxSPLIT_HORIZONTAL ) - { - if ( m_sashPosition >= (ch - 5) ) - m_sashPosition = wxMax(10, ch - 40); - } + int newPosition = m_sashPosition + delta; + if( newPosition < m_minimumPaneSize ) + newPosition = m_minimumPaneSize; + SetSashPositionAndNotify(newPosition); } - SizeWindows(); + if ( m_sashPosition >= size - 5 ) + SetSashPositionAndNotify(wxMax(10, size - 40)); + m_lastSize = wxSize(w,h); } + + SizeWindows(); } -bool wxSplitterWindow::SashHitTest(int x, int y, int tolerance) +void wxSplitterWindow::SetSashGravity(double gravity) { - if ( m_windowTwo == NULL || m_sashPosition == 0) - return FALSE; // No sash + wxCHECK_RET( gravity >= 0. && gravity <= 1., + wxT("invalid gravity value") ); - if ( m_splitMode == wxSPLIT_VERTICAL ) - { - if ( (x >= m_sashPosition - tolerance) && (x <= m_sashPosition + m_sashSize + tolerance) ) - return TRUE; - else - return FALSE; - } - else - { - if ( (y >= (m_sashPosition- tolerance)) && (y <= (m_sashPosition + m_sashSize + tolerance)) ) - return TRUE; - else - return FALSE; - } + m_sashGravity = gravity; } -// Draw 3D effect borders -void wxSplitterWindow::DrawBorders(wxDC& dc) +bool wxSplitterWindow::SashHitTest(int x, int y, int tolerance) { - int w, h; - GetClientSize(&w, &h); - - if ( GetWindowStyleFlag() & wxSP_3DBORDER ) - { - - dc.SetPen(*m_facePen); - dc.SetBrush(*m_faceBrush); - dc.DrawRectangle(1, 1 , w-1, m_borderSize-2 ); //high - dc.DrawRectangle(1, m_borderSize-2 , m_borderSize-2, h-1 ); // left - dc.DrawRectangle(w-m_borderSize+2, m_borderSize-2 , w-1, h-1 ); // right - dc.DrawRectangle(m_borderSize-2, h-m_borderSize+2 , w-m_borderSize+2, h-1 ); //bottom - - dc.SetPen(*m_mediumShadowPen); - dc.DrawLine(m_borderSize-2, m_borderSize-2, w-m_borderSize+1, m_borderSize-2); - dc.DrawLine(m_borderSize-2, m_borderSize-2, m_borderSize-2, h-m_borderSize+1); + if ( m_windowTwo == NULL || m_sashPosition == 0) + return false; // No sash - dc.SetPen(*m_darkShadowPen); - dc.DrawLine(m_borderSize-1, m_borderSize-1, w-m_borderSize, m_borderSize-1); - dc.DrawLine(m_borderSize-1, m_borderSize-1, m_borderSize-1, h-m_borderSize); + int z = m_splitMode == wxSPLIT_VERTICAL ? x : y; + int hitMin = m_sashPosition - tolerance; + int hitMax = m_sashPosition + GetSashSize() + tolerance; - dc.SetPen(*m_hilightPen); - dc.DrawLine(m_borderSize - 2, h-m_borderSize+1, w-m_borderSize+1, h-m_borderSize+1); - dc.DrawLine(w-m_borderSize+1, m_borderSize - 2, w-m_borderSize+1, h-m_borderSize+2); // Surely the maximum y pos. should be h - 1. - /// Anyway, h is required for MSW. + return z >= hitMin && z <= hitMax; +} - dc.SetPen(*m_lightShadowPen); - dc.DrawLine(w-m_borderSize, m_borderSize-1, w-m_borderSize, h-m_borderSize); // Right hand side - dc.DrawLine(m_borderSize-1, h-m_borderSize, w-m_borderSize+1, h-m_borderSize); // Bottom - } - else if ( GetWindowStyleFlag() & wxSP_BORDER ) - { - dc.SetBrush(*wxTRANSPARENT_BRUSH); - dc.SetPen(*wxBLACK_PEN); - dc.DrawRectangle(0, 0, w-1, h-1); - } +int wxSplitterWindow::GetSashSize() const +{ + return wxRendererNative::Get().GetSplitterParams(this).widthSash; +} - dc.SetPen(wxNullPen); - dc.SetBrush(wxNullBrush); +int wxSplitterWindow::GetBorderSize() const +{ + return wxRendererNative::Get().GetSplitterParams(this).border; } // Draw the sash void wxSplitterWindow::DrawSash(wxDC& dc) { - if ( m_sashPosition == 0 || !m_windowTwo) + if (HasFlag(wxSP_3DBORDER)) + wxRendererNative::Get().DrawSplitterBorder + ( + this, + dc, + GetClientRect() + ); + + // don't draw sash if we're not split + if ( m_sashPosition == 0 || !m_windowTwo ) return; - if (GetWindowStyle() & wxSP_NOSASH) - return; - - int w, h; - GetClientSize(&w, &h); - - if ( GetWindowStyleFlag() & wxSP_3DSASH ) - { - if ( m_splitMode == wxSPLIT_VERTICAL ) - { - dc.SetPen(*m_facePen); - // How to test for Aqua? -#ifdef __DARWIN__ - dc.SetBrush(*wxWHITE_BRUSH); -#else - dc.SetBrush(*m_faceBrush); -#endif - dc.DrawRectangle(m_sashPosition + 2, 0 , m_sashSize - 4, h ); - - dc.SetBrush(*wxTRANSPARENT_BRUSH); - - dc.SetPen(*m_lightShadowPen); - int xShadow = m_borderSize ? m_borderSize - 1 : 0 ; - dc.DrawLine(m_sashPosition, xShadow , m_sashPosition, h-m_borderSize); - - dc.SetPen(*m_hilightPen); - dc.DrawLine(m_sashPosition+1, m_borderSize - 2, m_sashPosition+1, h - m_borderSize+2); - -#ifndef __DARWIN__ - dc.SetPen(*m_mediumShadowPen); -#endif - int yMedium = m_borderSize ? h-m_borderSize+1 : h ; - dc.DrawLine(m_sashPosition+m_sashSize-2, xShadow, m_sashPosition+m_sashSize-2, yMedium); - -#ifdef __DARWIN__ - dc.SetPen(*m_lightShadowPen); -#else - dc.SetPen(*m_darkShadowPen); -#endif - dc.DrawLine(m_sashPosition+m_sashSize-1, m_borderSize, m_sashPosition+m_sashSize-1, h-m_borderSize ); - - // Draw the top and bottom edges of the sash, if requested - if (GetWindowStyle() & wxSP_FULLSASH) - { - // Top - dc.SetPen(*m_hilightPen); - dc.DrawLine(m_sashPosition+1, m_borderSize, m_sashPosition+m_sashSize-1, m_borderSize); - - // Bottom - dc.SetPen(*m_darkShadowPen); - dc.DrawLine(m_sashPosition+1, h-m_borderSize-1, m_sashPosition+m_sashSize-1, h-m_borderSize-1); - } - } - else - { - dc.SetPen(*m_facePen); - // How to test for Aqua? -#ifdef __DARWIN__ - dc.SetBrush(*wxWHITE_BRUSH); -#else - dc.SetBrush(*m_faceBrush); -#endif - dc.DrawRectangle( m_borderSize-2, m_sashPosition + 2, w-m_borderSize+2, m_sashSize - 4); - dc.SetBrush(*wxTRANSPARENT_BRUSH); - - dc.SetPen(*m_lightShadowPen); - dc.DrawLine(m_borderSize-1, m_sashPosition, w-m_borderSize, m_sashPosition); - - dc.SetPen(*m_hilightPen); - dc.DrawLine(m_borderSize-2, m_sashPosition+1, w-m_borderSize+1, m_sashPosition+1); - -#ifndef __DARWIN__ - dc.SetPen(*m_mediumShadowPen); -#endif - dc.DrawLine(m_borderSize-1, m_sashPosition+m_sashSize-2, w-m_borderSize+1, m_sashPosition+m_sashSize-2); - -#ifdef __DARWIN__ - dc.SetPen(*m_lightShadowPen); -#else - dc.SetPen(*m_darkShadowPen); -#endif - dc.DrawLine(m_borderSize, m_sashPosition+m_sashSize-1, w-m_borderSize, m_sashPosition+m_sashSize-1); - - // Draw the left and right edges of the sash, if requested - if (GetWindowStyle() & wxSP_FULLSASH) - { - // Left - dc.SetPen(*m_hilightPen); - dc.DrawLine(m_borderSize, m_sashPosition, m_borderSize, m_sashPosition+m_sashSize); - - // Right - dc.SetPen(*m_darkShadowPen); - dc.DrawLine(w-m_borderSize-1, m_sashPosition+1, w-m_borderSize-1, m_sashPosition+m_sashSize-1); - } - } - } - else - { - if ( m_splitMode == wxSPLIT_VERTICAL ) - { - dc.SetPen(*wxBLACK_PEN); - dc.SetBrush(*wxBLACK_BRUSH); - int h1 = h-1; - int y1 = 0; - if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER && (GetWindowStyleFlag() & wxSP_3DBORDER) != wxSP_3DBORDER ) - h1 += 1; // Not sure why this is necessary... - if ( (GetWindowStyleFlag() & wxSP_3DBORDER) == wxSP_3DBORDER) - { - y1 = 2; h1 -= 3; - } - dc.DrawRectangle(m_sashPosition, y1, m_sashSize, h1); - } - else - { - dc.SetPen(*wxBLACK_PEN); - dc.SetBrush(*wxBLACK_BRUSH); - int w1 = w-1; - int x1 = 0; - if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER && (GetWindowStyleFlag() & wxSP_3DBORDER) != wxSP_3DBORDER ) - w1 ++; - if ( (GetWindowStyleFlag() & wxSP_3DBORDER) == wxSP_3DBORDER) - { - x1 = 2; w1 -= 3; - } - dc.DrawRectangle(x1, m_sashPosition, w1, m_sashSize); - } - - } + // nor if we're configured to not show it + if ( HasFlag(wxSP_NOSASH) ) + return; - dc.SetPen(wxNullPen); - dc.SetBrush(wxNullBrush); + wxRendererNative::Get().DrawSplitterSash + ( + this, + dc, + GetClientSize(), + m_sashPosition, + m_splitMode == wxSPLIT_VERTICAL ? wxVERTICAL + : wxHORIZONTAL, + m_isHot ? (int)wxCONTROL_CURRENT : 0 + ); } // Draw the sash tracker (for whilst moving the sash) @@ -643,33 +538,15 @@ void wxSplitterWindow::DrawSashTracker(int x, int y) if ( m_splitMode == wxSPLIT_VERTICAL ) { - x1 = x; y1 = 2; - x2 = x; y2 = h-2; - - if ( x1 > w ) - { - x1 = w; x2 = w; - } - else if ( x1 < 0 ) - { - x1 = 0; x2 = 0; - } + x1 = x2 = wxClip(x, 0, w) + m_sashTrackerPen->GetWidth()/2; + y1 = 2; + y2 = h-2; } else { - x1 = 2; y1 = y; - x2 = w-2; y2 = y; - - if ( y1 > h ) - { - y1 = h; - y2 = h; - } - else if ( y1 < 0 ) - { - y1 = 0; - y2 = 0; - } + y1 = y2 = wxClip(y, 0, h) + m_sashTrackerPen->GetWidth()/2; + x1 = 2; + x2 = w-2; } ClientToScreen(&x1, &y1); @@ -682,9 +559,82 @@ void wxSplitterWindow::DrawSashTracker(int x, int y) screenDC.DrawLine(x1, y1, x2, y2); screenDC.SetLogicalFunction(wxCOPY); +} + +int wxSplitterWindow::GetWindowSize() const +{ + wxSize size = GetClientSize(); + + return m_splitMode == wxSPLIT_VERTICAL ? size.x : size.y; +} + +int wxSplitterWindow::AdjustSashPosition(int sashPos) const +{ + wxWindow *win; - screenDC.SetPen(wxNullPen); - screenDC.SetBrush(wxNullBrush); + win = GetWindow1(); + if ( win ) + { + // the window shouldn't be smaller than its own minimal size nor + // smaller than the minimual pane size specified for this splitter + int minSize = m_splitMode == wxSPLIT_VERTICAL ? win->GetMinWidth() + : win->GetMinHeight(); + + if ( minSize == -1 || m_minimumPaneSize > minSize ) + minSize = m_minimumPaneSize; + + minSize += GetBorderSize(); + + if ( sashPos < minSize ) + sashPos = minSize; + } + + win = GetWindow2(); + if ( win ) + { + int minSize = m_splitMode == wxSPLIT_VERTICAL ? win->GetMinWidth() + : win->GetMinHeight(); + + if ( minSize == -1 || m_minimumPaneSize > minSize ) + minSize = m_minimumPaneSize; + + int maxSize = GetWindowSize() - minSize - GetBorderSize() - GetSashSize(); + if ( maxSize > 0 && sashPos > maxSize && maxSize >= m_minimumPaneSize) + sashPos = maxSize; + } + + return sashPos; +} + +bool wxSplitterWindow::DoSetSashPosition(int sashPos) +{ + int newSashPosition = AdjustSashPosition(sashPos); + + if ( newSashPosition == m_sashPosition ) + return false; + + m_sashPosition = newSashPosition; + + return true; +} + +void wxSplitterWindow::SetSashPositionAndNotify(int sashPos) +{ + // we must reset the request here, otherwise the sash would be stuck at + // old position if the user attempted to move the sash after invalid + // (e.g. smaller than minsize) sash position was requested using + // SetSashPosition(): + m_requestedSashPosition = INT_MAX; + + // note that we must send the event in any case, i.e. even if the sash + // position hasn't changed and DoSetSashPosition() returns false because we + // must generate a CHANGED event at the end of resizing + DoSetSashPosition(sashPos); + + wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED, this); + event.m_data.pos = m_sashPosition; + + (void)DoSendEvent(event); } // Position and size subwindows. @@ -692,143 +642,177 @@ void wxSplitterWindow::DrawSashTracker(int x, int y) // including the edges next to the sash. void wxSplitterWindow::SizeWindows() { + // check if we have delayed setting the real sash position + if ( m_checkRequestedSashPosition && m_requestedSashPosition != INT_MAX ) + { + int newSashPosition = ConvertSashPosition(m_requestedSashPosition); + if ( newSashPosition != m_sashPosition ) + { + DoSetSashPosition(newSashPosition); + } + + if ( newSashPosition <= m_sashPosition + && newSashPosition >= m_sashPosition - GetBorderSize() ) + { + // don't update it any more + m_requestedSashPosition = INT_MAX; + } + } + int w, h; GetClientSize(&w, &h); if ( GetWindow1() && !GetWindow2() ) { - GetWindow1()->SetSize(GetBorderSize(), GetBorderSize(), w - 2*GetBorderSize(), h - 2*GetBorderSize()); - + GetWindow1()->SetSize(GetBorderSize(), GetBorderSize(), + w - 2*GetBorderSize(), h - 2*GetBorderSize()); } else if ( GetWindow1() && GetWindow2() ) { - if (GetSplitMode() == wxSPLIT_VERTICAL) + const int border = GetBorderSize(), + sash = GetSashSize(); + + int size1 = GetSashPosition() - border, + size2 = GetSashPosition() + sash; + + int x2, y2, w1, h1, w2, h2; + if ( GetSplitMode() == wxSPLIT_VERTICAL ) { - int x1 = GetBorderSize(); - int y1 = GetBorderSize(); - int w1 = GetSashPosition() - GetBorderSize(); - int h1 = h - 2*GetBorderSize(); - - int x2 = GetSashPosition() + GetSashSize(); - int y2 = GetBorderSize(); - int w2 = w - 2*GetBorderSize() - GetSashSize() - w1; - int h2 = h - 2*GetBorderSize(); - - GetWindow1()->SetSize(x1, y1, w1, h1); - GetWindow2()->SetSize(x2, y2, w2, h2); + w1 = size1; + w2 = w - 2*border - sash - w1; + if (w2 < 0) + w2 = 0; + h2 = h - 2*border; + if (h2 < 0) + h2 = 0; + h1 = h2; + x2 = size2; + y2 = border; } - else + else // horz splitter { - GetWindow1()->SetSize(GetBorderSize(), GetBorderSize(), - w - 2*GetBorderSize(), GetSashPosition() - GetBorderSize()); - GetWindow2()->SetSize(GetBorderSize(), GetSashPosition() + GetSashSize(), - w - 2*GetBorderSize(), h - 2*GetBorderSize() - GetSashSize() - (GetSashPosition() - GetBorderSize())); + w2 = w - 2*border; + if (w2 < 0) + w2 = 0; + w1 = w2; + h1 = size1; + h2 = h - 2*border - sash - h1; + if (h2 < 0) + h2 = 0; + x2 = border; + y2 = size2; } + + GetWindow2()->SetSize(x2, y2, w2, h2); + GetWindow1()->SetSize(border, border, w1, h1); } + wxClientDC dc(this); - if ( GetBorderSize() > 0 ) - DrawBorders(dc); DrawSash(dc); - SetNeedUpdating(FALSE); + SetNeedUpdating(false); } // Set pane for unsplit window void wxSplitterWindow::Initialize(wxWindow *window) { + wxASSERT_MSG( (!window || window->GetParent() == this), + wxT("windows in the splitter should have it as parent!") ); + + if (window && !window->IsShown()) + window->Show(); + m_windowOne = window; - m_windowTwo = (wxWindow *) NULL; - m_sashPosition = 0; + m_windowTwo = NULL; + DoSetSashPosition(0); } // 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. -bool wxSplitterWindow::SplitVertically(wxWindow *window1, wxWindow *window2, int sashPosition) +// Does nothing and returns false if the window is already split. +bool wxSplitterWindow::DoSplit(wxSplitMode mode, + wxWindow *window1, wxWindow *window2, + int sashPosition) { if ( IsSplit() ) - return FALSE; + return false; - int w, h; - GetClientSize(&w, &h); + wxCHECK_MSG( window1 && window2, false, + wxT("cannot split with NULL window(s)") ); - m_splitMode = wxSPLIT_VERTICAL; + wxCHECK_MSG( window1->GetParent() == this && window2->GetParent() == this, false, + wxT("windows in the splitter should have it as parent!") ); + + if (! window1->IsShown()) + window1->Show(); + if (! window2->IsShown()) + window2->Show(); + + m_splitMode = mode; m_windowOne = window1; m_windowTwo = window2; - if ( sashPosition > 0 ) - m_sashPosition = sashPosition; - else if ( sashPosition < 0 ) - m_sashPosition = w + sashPosition; // It's negative so adding is subtracting - else // default - m_sashPosition = w/2; - SizeWindows(); - return TRUE; + SetSashPosition(sashPosition, true); + return true; } -bool wxSplitterWindow::SplitHorizontally(wxWindow *window1, wxWindow *window2, int sashPosition) +int wxSplitterWindow::ConvertSashPosition(int sashPosition) const { - if ( IsSplit() ) - return FALSE; - - int w, h; - GetClientSize(&w, &h); - - m_splitMode = wxSPLIT_HORIZONTAL; - m_windowOne = window1; - m_windowTwo = window2; if ( sashPosition > 0 ) - m_sashPosition = sashPosition; + { + return sashPosition; + } else if ( sashPosition < 0 ) - m_sashPosition = h + sashPosition; // It's negative so adding is subtracting - else // default - m_sashPosition = h/2; - - SizeWindows(); - - return TRUE; + { + // It's negative so adding is subtracting + return GetWindowSize() + sashPosition; + } + else // sashPosition == 0 + { + // default, put it in the centre + return GetWindowSize() / 2; + } } - // Remove the specified (or second) window from the view // Doesn't actually delete the window. bool wxSplitterWindow::Unsplit(wxWindow *toRemove) { if ( ! IsSplit() ) - return FALSE; + return false; - wxWindow *win = NULL; + wxWindow *win; if ( toRemove == NULL || toRemove == m_windowTwo) { win = m_windowTwo ; - m_windowTwo = (wxWindow *) NULL; + m_windowTwo = NULL; } else if ( toRemove == m_windowOne ) { win = m_windowOne ; m_windowOne = m_windowTwo; - m_windowTwo = (wxWindow *) NULL; + m_windowTwo = NULL; } else { wxFAIL_MSG(wxT("splitter: attempt to remove a non-existent window")); - return FALSE; + return false; } - SendUnsplitEvent(win); - m_sashPosition = 0; + OnUnsplit(win); + DoSetSashPosition(0); SizeWindows(); - return TRUE; + return true; } // Replace a window with another one bool wxSplitterWindow::ReplaceWindow(wxWindow *winOld, wxWindow *winNew) { - wxCHECK_MSG( winOld, FALSE, wxT("use one of Split() functions instead") ); - wxCHECK_MSG( winNew, FALSE, wxT("use Unsplit() functions instead") ); + wxCHECK_MSG( winOld, false, wxT("use one of Split() functions instead") ); + wxCHECK_MSG( winNew, false, wxT("use Unsplit() functions instead") ); if ( winOld == m_windowTwo ) { @@ -842,17 +826,29 @@ bool wxSplitterWindow::ReplaceWindow(wxWindow *winOld, wxWindow *winNew) { wxFAIL_MSG(wxT("splitter: attempt to replace a non-existent window")); - return FALSE; + return false; } SizeWindows(); - return TRUE; + return true; +} + +void wxSplitterWindow::SetMinimumPaneSize(int min) +{ + m_minimumPaneSize = min; + int pos = m_requestedSashPosition != INT_MAX ? m_requestedSashPosition : m_sashPosition; + SetSashPosition(pos); // re-check limits } void wxSplitterWindow::SetSashPosition(int position, bool redraw) { - m_sashPosition = position; + // remember the sash position we want to set for later if we can't set it + // right now (e.g. because the window is too small) + m_requestedSashPosition = position; + m_checkRequestedSashPosition = false; + + DoSetSashPosition(ConvertSashPosition(position)); if ( redraw ) { @@ -860,153 +856,189 @@ void wxSplitterWindow::SetSashPosition(int position, bool redraw) } } -// Initialize colours -void wxSplitterWindow::InitColours() +// 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 wxSplitterWindow::UpdateSize() { - wxDELETE( m_facePen ); - wxDELETE( m_faceBrush ); - wxDELETE( m_mediumShadowPen ); - wxDELETE( m_darkShadowPen ); - wxDELETE( m_lightShadowPen ); - wxDELETE( m_hilightPen ); + m_checkRequestedSashPosition = true; + SizeWindows(); + m_checkRequestedSashPosition = false; +} - // Shadow colours -#ifndef __WIN16__ - wxColour faceColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); - m_facePen = new wxPen(faceColour, 1, wxSOLID); - m_faceBrush = new wxBrush(faceColour, wxSOLID); +bool wxSplitterWindow::DoSendEvent(wxSplitterEvent& event) +{ + return !GetEventHandler()->ProcessEvent(event) || event.IsAllowed(); +} - wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW)); - m_mediumShadowPen = new wxPen(mediumShadowColour, 1, wxSOLID); +wxSize wxSplitterWindow::DoGetBestSize() const +{ + // get best sizes of subwindows + wxSize size1, size2; + if ( m_windowOne ) + size1 = m_windowOne->GetEffectiveMinSize(); + if ( m_windowTwo ) + size2 = m_windowTwo->GetEffectiveMinSize(); + + // sum them + // + // pSash points to the size component to which sash size must be added + int *pSash; + wxSize sizeBest; + if ( m_splitMode == wxSPLIT_VERTICAL ) + { + sizeBest.y = wxMax(size1.y, size2.y); + sizeBest.x = wxMax(size1.x, m_minimumPaneSize) + + wxMax(size2.x, m_minimumPaneSize); - wxColour darkShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DDKSHADOW)); - m_darkShadowPen = new wxPen(darkShadowColour, 1, wxSOLID); + pSash = &sizeBest.x; + } + else // wxSPLIT_HORIZONTAL + { + sizeBest.x = wxMax(size1.x, size2.x); + sizeBest.y = wxMax(size1.y, m_minimumPaneSize) + + wxMax(size2.y, m_minimumPaneSize); - wxColour lightShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DLIGHT)); - m_lightShadowPen = new wxPen(lightShadowColour, 1, wxSOLID); + pSash = &sizeBest.y; + } - wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT)); - m_hilightPen = new wxPen(hilightColour, 1, wxSOLID); -#else - m_facePen = new wxPen("LIGHT GREY", 1, wxSOLID); - m_faceBrush = new wxBrush("LIGHT GREY", wxSOLID); - m_mediumShadowPen = new wxPen("GREY", 1, wxSOLID); - m_darkShadowPen = new wxPen("BLACK", 1, wxSOLID); - m_lightShadowPen = new wxPen("LIGHT GREY", 1, wxSOLID); - m_hilightPen = new wxPen("WHITE", 1, wxSOLID); -#endif // __WIN16__ -} + // account for the sash if the window is actually split + if ( m_windowOne && m_windowTwo ) + *pSash += GetSashSize(); -void wxSplitterWindow::SendUnsplitEvent(wxWindow *winRemoved) -{ - wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_UNSPLIT, this); - event.m_data.win = winRemoved; + // account for the border too + int border = 2*GetBorderSize(); + sizeBest.x += border; + sizeBest.y += border; - (void)GetEventHandler()->ProcessEvent(event); + return sizeBest; } // --------------------------------------------------------------------------- -// splitter event handlers +// wxSplitterWindow virtual functions: they now just generate the events // --------------------------------------------------------------------------- -void wxSplitterWindow::OnSashPosChanged(wxSplitterEvent& event) +bool wxSplitterWindow::OnSashPositionChange(int WXUNUSED(newSashPosition)) +{ + // always allow by default + return true; +} + +int wxSplitterWindow::OnSashPositionChanging(int newSashPosition) { // If within UNSPLIT_THRESHOLD from edge, set to edge to cause closure. const int UNSPLIT_THRESHOLD = 4; - int newSashPosition = event.GetSashPosition(); + // first of all, check if OnSashPositionChange() doesn't forbid this change + if ( !OnSashPositionChange(newSashPosition) ) + { + // it does + return -1; + } // Obtain relevant window dimension for bottom / right threshold check - int w, h; - GetClientSize(&w, &h); - int window_size = (m_splitMode == wxSPLIT_VERTICAL) ? w : h ; + int window_size = GetWindowSize(); - bool unsplit_scenario = FALSE; - if ( m_permitUnsplitAlways - || m_minimumPaneSize == 0 ) + bool unsplit_scenario = false; + if ( m_permitUnsplitAlways || m_minimumPaneSize == 0 ) { // Do edge detection if unsplit premitted if ( newSashPosition <= UNSPLIT_THRESHOLD ) { // threshold top / left check newSashPosition = 0; - unsplit_scenario = TRUE; + unsplit_scenario = true; } if ( newSashPosition >= window_size - UNSPLIT_THRESHOLD ) { // threshold bottom/right check newSashPosition = window_size; - unsplit_scenario = TRUE; + unsplit_scenario = true; } } if ( !unsplit_scenario ) { // If resultant pane would be too small, enlarge it - if ( newSashPosition < m_minimumPaneSize ) - newSashPosition = m_minimumPaneSize; - if ( newSashPosition > window_size - m_minimumPaneSize ) - newSashPosition = window_size - m_minimumPaneSize; + newSashPosition = AdjustSashPosition(newSashPosition); + + // If the result is out of bounds it means minimum size is too big, + // so split window in half as best compromise. + if ( newSashPosition < 0 || newSashPosition > window_size ) + newSashPosition = window_size / 2; } - // If the result is out of bounds it means minimum size is too big, - // so split window in half as best compromise. - if ( newSashPosition < 0 || newSashPosition > window_size ) - newSashPosition = window_size / 2; + // now let the event handler have it + // + // FIXME: shouldn't we do it before the adjustments above so as to ensure + // that the sash position is always reasonable? + wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGING, this); + event.m_data.pos = newSashPosition; - // for compatibility, call the virtual function - if ( !OnSashPositionChange(newSashPosition) ) + if ( !DoSendEvent(event) ) { + // the event handler vetoed the change newSashPosition = -1; } + else + { + // it could have been changed by it + newSashPosition = event.GetSashPosition(); + } - event.SetSashPosition(newSashPosition); + return newSashPosition; } // Called when the sash is double-clicked. The default behaviour is to remove // the sash if the minimum pane size is zero. -void wxSplitterWindow::OnDoubleClick(wxSplitterEvent& event) +void wxSplitterWindow::OnDoubleClickSash(int x, int y) { - // for compatibility, call the virtual function - OnDoubleClickSash(event.GetX(), event.GetY()); + wxCHECK_RET(m_windowTwo, wxT("splitter: no window to remove")); - if ( GetMinimumPaneSize() == 0 || m_permitUnsplitAlways ) + // new code should handle events instead of using the virtual functions + wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_DOUBLECLICKED, this); + event.m_data.pt.x = x; + event.m_data.pt.y = y; + if ( DoSendEvent(event) ) { - Unsplit(); + if ( GetMinimumPaneSize() == 0 || m_permitUnsplitAlways ) + { + wxWindow* win = m_windowTwo; + if ( Unsplit(win) ) + { + wxSplitterEvent unsplitEvent(wxEVT_COMMAND_SPLITTER_UNSPLIT, this); + unsplitEvent.m_data.win = win; + (void)DoSendEvent(unsplitEvent); + } + } } + //else: blocked by user } -void wxSplitterWindow::OnUnsplitEvent(wxSplitterEvent& event) +void wxSplitterWindow::OnUnsplit(wxWindow *winRemoved) { - wxWindow *win = event.GetWindowBeingRemoved(); - - // do it before calling OnUnsplit() which may delete the window - win->Show(FALSE); - - // for compatibility, call the virtual function - OnUnsplit(win); + // call this before calling the event handler which may delete the window + winRemoved->Show(false); } -#if defined(__WXMSW__) - #define WXUNUSED_UNLESS_MSW(identifier) identifier -#else - #define WXUNUSED_UNLESS_MSW(identifier) WXUNUSED(identifier) -#endif +#if defined( __WXMSW__ ) || defined( __WXMAC__) -void wxSplitterWindow::OnSetCursor(wxSetCursorEvent& WXUNUSED_UNLESS_MSW(event)) +// this is currently called (and needed) under MSW only... +void wxSplitterWindow::OnSetCursor(wxSetCursorEvent& event) { - // this is currently called (and needed) under MSW only... -#ifdef __WXMSW__ - // if we don't do it, the resizing cursor might be set for child window: // and like this we explicitly say that our cursor should not be used for // children windows which overlap us - if ( SashHitTest(event.GetX(), event.GetY()) ) + if ( SashHitTest(event.GetX(), event.GetY(), 0) ) { // default processing is ok event.Skip(); } //else: do nothing, in particular, don't call Skip() -#endif // wxMSW } + +#endif // wxMSW || wxMac + +#endif // wxUSE_SPLITTER +