X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f4a4bd13d46c34069661766e9d3d2cfbdd0dbb86..065722d7b13d2dde15f536591f80567c489c561a:/src/generic/splitter.cpp diff --git a/src/generic/splitter.cpp b/src/generic/splitter.cpp index bc24c4bae5..3da3fa0472 100644 --- a/src/generic/splitter.cpp +++ b/src/generic/splitter.cpp @@ -6,75 +6,100 @@ // Created: 01/02/97 // RCS-ID: $Id$ // Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// #ifdef __GNUG__ -#pragma implementation "splitter.h" -// #pragma interface + #pragma implementation "splitter.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif #ifndef WX_PRECOMP -#include "wx/wx.h" + #include "wx/window.h" + #include "wx/dialog.h" + #include "wx/frame.h" #endif -#include #include #include "wx/string.h" #include "wx/splitter.h" #include "wx/dcscreen.h" +#include "wx/settings.h" +#include "wx/log.h" +#include "wx/utils.h" + +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) -#if !USE_SHARED_LIBRARY IMPLEMENT_DYNAMIC_CLASS(wxSplitterWindow, wxWindow) +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) + +#ifdef __WXMSW__ + EVT_SET_CURSOR(wxSplitterWindow::OnSetCursor) +#endif // wxMSW + + WX_EVENT_TABLE_CONTROL_CONTAINER(wxSplitterWindow) END_EVENT_TABLE() -#endif -wxSplitterWindow::wxSplitterWindow() -{ - m_splitMode = wxSPLIT_VERTICAL; - m_windowOne = (wxWindow *) NULL; - m_windowTwo = (wxWindow *) 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_sashCursorWE = (wxCursor *) NULL; - m_sashCursorNS = (wxCursor *) NULL; - m_sashTrackerPen = (wxPen *) NULL; - 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_minimumPaneSize = 0; -} +WX_DELEGATE_TO_CONTROL_CONTAINER(wxSplitterWindow); -wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, +bool wxSplitterWindow::Create(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style, const wxString& name) - : wxWindow(parent, id, pos, size, style, name) { + // allow TABbing from one window to the other + style |= wxTAB_TRAVERSAL; + + if (!wxWindow::Create(parent, id, pos, size, style, name)) + return FALSE; + + m_permitUnsplitAlways = (style & wxSP_PERMIT_UNSPLIT) != 0; + + if ( style & wxSP_3DSASH ) + m_sashSize = 7; + else + m_sashSize = 3; + + if ( style & wxSP_3DBORDER ) + m_borderSize = 2; + else if ( style & wxSP_BORDER ) + m_borderSize = 1; + else + m_borderSize = 0; + +#ifdef __WXMAC__ + int major,minor; + wxGetOsVersion( &major, &minor ); + if (major >= 10) + m_windowStyle |= wxSP_SASH_AQUA; +#endif + + 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_dragMode = wxSPLIT_DRAG_NONE; @@ -84,10 +109,10 @@ wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, m_firstY = 0; m_sashSize = 7; m_borderSize = 2; - m_sashPosition = 0; + m_sashPosition = m_requestedSashPosition = 0; m_minimumPaneSize = 0; - m_sashCursorWE = new wxCursor(wxCURSOR_SIZEWE); - m_sashCursorNS = new wxCursor(wxCURSOR_SIZENS); + m_sashCursorWE = wxCursor(wxCURSOR_SIZEWE); + m_sashCursorNS = wxCursor(wxCURSOR_SIZENS); m_sashTrackerPen = new wxPen(*wxBLACK, 2, wxSOLID); m_lightShadowPen = (wxPen *) NULL; m_mediumShadowPen = (wxPen *) NULL; @@ -96,33 +121,16 @@ wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, m_facePen = (wxPen *) NULL; m_hilightPen = (wxPen *) NULL; - if ( style & wxSP_3D ) - { - m_borderSize = 2; - m_sashSize = 7; - } - else if ( style & wxSP_BORDER ) - { - m_borderSize = 1; - m_sashSize = 3; - } - else - { - m_borderSize = 0; - m_sashSize = 3; - } + m_borderSize = 0; + m_sashSize = 3; - // Eventually, we'll respond to colour change messages InitColours(); - // For debugging purposes, to see the background. -// SetBackground(wxBLUE_BRUSH); + m_needUpdating = FALSE; } wxSplitterWindow::~wxSplitterWindow() { - delete m_sashCursorWE; - delete m_sashCursorNS; delete m_sashTrackerPen; delete m_lightShadowPen; delete m_darkShadowPen; @@ -132,6 +140,12 @@ wxSplitterWindow::~wxSplitterWindow() delete m_faceBrush; } +void wxSplitterWindow::SetResizeCursor() +{ + SetCursor(m_splitMode == wxSPLIT_VERTICAL ? m_sashCursorWE + : m_sashCursorNS); +} + void wxSplitterWindow::OnPaint(wxPaintEvent& WXUNUSED(event)) { wxPaintDC dc(this); @@ -141,10 +155,34 @@ void wxSplitterWindow::OnPaint(wxPaintEvent& WXUNUSED(event)) DrawSash(dc); } +void wxSplitterWindow::OnIdle(wxIdleEvent& event) +{ + if (m_needUpdating) + SizeWindows(); + + event.Skip(); +} + void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) { - long x, y; - event.Position(&x, &y); + int x = (int)event.GetX(), + y = (int)event.GetY(); + + // reset the cursor +#ifdef __WXMOTIF__ + SetCursor(* wxSTANDARD_CURSOR); +#elif defined(__WXMSW__) + SetCursor(wxCursor()); +#endif + + if (GetWindowStyle() & wxSP_NOSASH) + return; + + // 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 + bool isLive = (GetWindowStyleFlag() & wxSP_LIVE_UPDATE) != 0; if (event.LeftDown()) { @@ -152,165 +190,208 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) { CaptureMouse(); - // Required for X to specify that - // that we wish to draw on top of all windows - // - and we optimise by specifying the area - // for creating the overlap window. - wxScreenDC::StartDrawingOnTop(this); - - // We don't say we're dragging yet; we leave that - // decision for the Dragging() branch, to ensure - // the user has dragged a little bit. - m_dragMode = wxSPLIT_DRAG_LEFT_DOWN; - m_firstX = x; - m_firstY = y; - } - } - else if ( event.LeftUp() && m_dragMode == wxSPLIT_DRAG_LEFT_DOWN ) - { - // Wasn't a proper drag - ReleaseMouse(); - wxScreenDC::EndDrawingOnTop(); - m_dragMode = wxSPLIT_DRAG_NONE; + m_dragMode = wxSPLIT_DRAG_DRAGGING; + + if ( !isLive ) + { + // remember the initial sash position and draw the initial + // shadow sash + m_sashPositionCurrent = m_sashPosition; + + DrawSashTracker(x, y); + } - SetCursor(*wxSTANDARD_CURSOR); + m_oldX = x; + m_oldY = y; + + SetResizeCursor(); + return; + } } else if (event.LeftUp() && m_dragMode == wxSPLIT_DRAG_DRAGGING) { // We can stop dragging now and see what we've got. m_dragMode = wxSPLIT_DRAG_NONE; ReleaseMouse(); + // Erase old tracker - DrawSashTracker(m_oldX, m_oldY); + if ( !isLive ) + { + DrawSashTracker(m_oldX, m_oldY); + } - // End drawing on top (frees the window used for drawing - // over the screen) - wxScreenDC::EndDrawingOnTop(); + // 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_oldX : y - m_oldY; - int w, h; - GetClientSize(&w, &h); - if ( m_splitMode == wxSPLIT_VERTICAL ) + int posSashOld = isLive ? m_sashPosition : m_sashPositionCurrent; + int posSashNew = OnSashPositionChanging(posSashOld + diff); + if ( posSashNew == -1 ) { - if ( !OnSashPositionChange(x) ) - return; + // change not allowed + return; + } - if ( x <= 4 ) + if ( m_permitUnsplitAlways || m_minimumPaneSize == 0 ) + { + // Deal with possible unsplit scenarios + if ( posSashNew == 0 ) { // We remove the first window from the view wxWindow *removedWindow = m_windowOne; m_windowOne = m_windowTwo; m_windowTwo = (wxWindow *) NULL; - OnUnsplit(removedWindow); - m_sashPosition = 0; + DoSetSashPosition(0); } - else if ( x >= (w - 4) ) + else if ( posSashNew == GetWindowSize() ) { // We remove the second window from the view wxWindow *removedWindow = m_windowTwo; m_windowTwo = (wxWindow *) NULL; OnUnsplit(removedWindow); - m_sashPosition = 0; + DoSetSashPosition(0); } else { - m_sashPosition = x; + DoSetSashPosition(posSashNew); } } else { - if ( !OnSashPositionChange(y) ) - return; - - if ( y <= 4 ) - { - // We remove the first window from the view - wxWindow *removedWindow = m_windowOne; - m_windowOne = m_windowTwo; - m_windowTwo = (wxWindow *) NULL; - - OnUnsplit(removedWindow); - m_sashPosition = 0; - } - else if ( y >= (h - 4) ) - { - // We remove the second window from the view - wxWindow *removedWindow = m_windowTwo; - m_windowTwo = (wxWindow *) NULL; - OnUnsplit(removedWindow); - m_sashPosition = 0; - } - else - { - m_sashPosition = y; - } + DoSetSashPosition(posSashNew); } + SizeWindows(); - } + } // left up && dragging else if (event.Moving() && !event.Dragging()) { // Just change the cursor if required if ( SashHitTest(x, y) ) { - if ( m_splitMode == wxSPLIT_VERTICAL ) - { - SetCursor(*m_sashCursorWE); - } - else - { - SetCursor(*m_sashCursorNS); - } + SetResizeCursor(); } +#if defined(__WXGTK__) || defined(__WXMSW__) else { - SetCursor(*wxSTANDARD_CURSOR); + // 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__ } - else if ( (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING)) || - (event.Dragging() && SashHitTest(x, y, 4)) ) - { - if ( m_splitMode == wxSPLIT_VERTICAL ) - { - SetCursor(*m_sashCursorWE); - } - else - { - SetCursor(*m_sashCursorNS); - } - - // Detect that this is really a drag: we've moved more than 1 pixel either way - if ((m_dragMode == wxSPLIT_DRAG_LEFT_DOWN) && -// (abs((int)x - m_firstX) > 1 || abs((int)y - m_firstY) > 1) ) - (abs((int)x - m_firstX) > 0 || abs((int)y - m_firstY) > 1) ) + else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING)) + { +#ifdef __WXMSW__ + // Otherwise, the cursor sometimes reverts to the normal cursor + // during dragging. + SetResizeCursor(); +#endif // __WXMSW__ + + int diff = m_splitMode == wxSPLIT_VERTICAL ? x - m_oldX : y - m_oldY; + + int posSashOld = isLive ? m_sashPosition : m_sashPositionCurrent; + int posSashNew = OnSashPositionChanging(posSashOld + diff); + if ( posSashNew == -1 ) { - m_dragMode = wxSPLIT_DRAG_DRAGGING; - DrawSashTracker(x, y); + // change not allowed + return; } - else + + if ( posSashNew == m_sashPosition ) + return; + + // Erase old tracker + if ( !isLive ) { - if ( m_dragMode == wxSPLIT_DRAG_DRAGGING ) - { - // Erase old tracker DrawSashTracker(m_oldX, m_oldY); - - // Draw new one - DrawSashTracker(x, y); - } } + + if (m_splitMode == wxSPLIT_VERTICAL) + x = posSashNew; + else + y = posSashNew; + + // Remember old positions m_oldX = x; m_oldY = 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; +#endif // __WXMSW__ + + // Draw new one + if ( !isLive ) + { + m_sashPositionCurrent = posSashNew; + + DrawSashTracker(m_oldX, m_oldY); + } + else + { + DoSetSashPosition(posSashNew); + m_needUpdating = TRUE; + } } else if ( event.LeftDClick() ) { OnDoubleClickSash(x, y); } +} + +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() ) + { + parent = parent->GetParent(); + } + + bool iconized = FALSE; + + // wxMotif doesn't yet have a wxTopLevelWindow implementation +#ifdef __WXMOTIF__ + wxFrame *winTop = wxDynamicCast(parent, wxFrame); +#else + wxTopLevelWindow *winTop = wxDynamicCast(parent, wxTopLevelWindow); +#endif + if ( winTop ) + { + iconized = winTop->IsIconized(); + } +#ifndef __WXMOTIF__ else { + wxFAIL_MSG(wxT("should have a top level parent!")); + + iconized = FALSE; + } +#endif + + if ( iconized ) + { + event.Skip(); + + return; } -} -void wxSplitterWindow::OnSize(wxSizeEvent& WXUNUSED(event)) -{ int cw, ch; GetClientSize( &cw, &ch ); if ( m_windowTwo ) @@ -318,14 +399,15 @@ void wxSplitterWindow::OnSize(wxSizeEvent& WXUNUSED(event)) if ( m_splitMode == wxSPLIT_VERTICAL ) { if ( m_sashPosition >= (cw - 5) ) - m_sashPosition = wxMax(10, cw - 40); + DoSetSashPosition(wxMax(10, cw - 40)); } - if ( m_splitMode == wxSPLIT_HORIZONTAL ) + else // m_splitMode == wxSPLIT_HORIZONTAL { if ( m_sashPosition >= (ch - 5) ) - m_sashPosition = wxMax(10, ch - 40); + DoSetSashPosition(wxMax(10, ch - 40)); } } + SizeWindows(); } @@ -348,8 +430,6 @@ bool wxSplitterWindow::SashHitTest(int x, int y, int tolerance) else return FALSE; } - - return FALSE; } // Draw 3D effect borders @@ -358,24 +438,32 @@ void wxSplitterWindow::DrawBorders(wxDC& dc) int w, h; GetClientSize(&w, &h); - if ( GetWindowStyleFlag() & wxSP_3D ) + 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(0, 0, w-1, 0); - dc.DrawLine(0, 0, 0, h - 1); + 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); dc.SetPen(*m_darkShadowPen); - dc.DrawLine(1, 1, w-2, 1); - dc.DrawLine(1, 1, 1, h-2); + 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); dc.SetPen(*m_hilightPen); - dc.DrawLine(0, h-1, w-1, h-1); - dc.DrawLine(w-1, 0, w-1, h); // Surely the maximum y pos. should be h - 1. + 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. dc.SetPen(*m_lightShadowPen); - dc.DrawLine(w-2, 1, w-2, h-2); // Right hand side - dc.DrawLine(1, h-2, w-1, h-2); // Bottom + 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 ) { @@ -393,51 +481,95 @@ void wxSplitterWindow::DrawSash(wxDC& dc) { if ( m_sashPosition == 0 || !m_windowTwo) return; + if (GetWindowStyle() & wxSP_NOSASH) + return; int w, h; GetClientSize(&w, &h); - if ( GetWindowStyleFlag() & wxSP_3D ) + if ( GetWindowStyleFlag() & wxSP_3DSASH ) { if ( m_splitMode == wxSPLIT_VERTICAL ) { dc.SetPen(*m_facePen); - dc.SetBrush(*m_faceBrush); - dc.DrawRectangle(m_sashPosition + 2, 0, m_sashSize - 4, h); + + if (HasFlag( wxSP_SASH_AQUA )) + dc.SetBrush(*wxWHITE_BRUSH); + else + dc.SetBrush(*m_faceBrush); + dc.DrawRectangle(m_sashPosition + 2, 0 , m_sashSize - 4, h ); dc.SetBrush(*wxTRANSPARENT_BRUSH); dc.SetPen(*m_lightShadowPen); - dc.DrawLine(m_sashPosition, 1, m_sashPosition, h-2); + 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, 0, m_sashPosition+1, h); + dc.DrawLine(m_sashPosition+1, m_borderSize - 2, m_sashPosition+1, h - m_borderSize+2); + + if (!HasFlag( wxSP_SASH_AQUA )) + dc.SetPen(*m_mediumShadowPen); - dc.SetPen(*m_mediumShadowPen); - dc.DrawLine(m_sashPosition+m_sashSize-2, 1, m_sashPosition+m_sashSize-2, h-1); + int yMedium = m_borderSize ? h-m_borderSize+1 : h ; + dc.DrawLine(m_sashPosition+m_sashSize-2, xShadow, m_sashPosition+m_sashSize-2, yMedium); + + if (HasFlag( wxSP_SASH_AQUA )) + dc.SetPen(*m_lightShadowPen); + else + dc.SetPen(*m_darkShadowPen); + dc.DrawLine(m_sashPosition+m_sashSize-1, m_borderSize, m_sashPosition+m_sashSize-1, h-m_borderSize ); - dc.SetPen(*m_darkShadowPen); - dc.DrawLine(m_sashPosition+m_sashSize-1, 2, m_sashPosition+m_sashSize-1, h-2); + // 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); - dc.SetBrush(*m_faceBrush); - dc.DrawRectangle(0, m_sashPosition + 2, w, m_sashSize - 4); + if (HasFlag( wxSP_SASH_AQUA )) + dc.SetBrush(*wxWHITE_BRUSH); + else + dc.SetBrush(*m_faceBrush); + 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(1, m_sashPosition, w-2, m_sashPosition); + dc.DrawLine(m_borderSize-1, m_sashPosition, w-m_borderSize, m_sashPosition); dc.SetPen(*m_hilightPen); - dc.DrawLine(0, m_sashPosition+1, w, m_sashPosition+1); + dc.DrawLine(m_borderSize-2, m_sashPosition+1, w-m_borderSize+1, m_sashPosition+1); + + if (!HasFlag( wxSP_SASH_AQUA )) + dc.SetPen(*m_mediumShadowPen); + dc.DrawLine(m_borderSize-1, m_sashPosition+m_sashSize-2, w-m_borderSize+1, m_sashPosition+m_sashSize-2); - dc.SetPen(*m_mediumShadowPen); - dc.DrawLine(1, m_sashPosition+m_sashSize-2, w-1, m_sashPosition+m_sashSize-2); + if (HasFlag( wxSP_SASH_AQUA )) + dc.SetPen(*m_lightShadowPen); + else + dc.SetPen(*m_darkShadowPen); + 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); - dc.SetPen(*m_darkShadowPen); - dc.DrawLine(2, m_sashPosition+m_sashSize-1, w-2, m_sashPosition+m_sashSize-1); + // Right + dc.SetPen(*m_darkShadowPen); + dc.DrawLine(w-m_borderSize-1, m_sashPosition+1, w-m_borderSize-1, m_sashPosition+m_sashSize-1); + } } } else @@ -447,19 +579,28 @@ void wxSplitterWindow::DrawSash(wxDC& dc) dc.SetPen(*wxBLACK_PEN); dc.SetBrush(*wxBLACK_BRUSH); int h1 = h-1; - if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER ) + int y1 = 0; + if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER && (GetWindowStyleFlag() & wxSP_3DBORDER) != wxSP_3DBORDER ) h1 += 1; // Not sure why this is necessary... - dc.DrawRectangle(m_sashPosition, 0, m_sashSize, h1); + 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; - if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER ) + int x1 = 0; + if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER && (GetWindowStyleFlag() & wxSP_3DBORDER) != wxSP_3DBORDER ) w1 ++; - - dc.DrawRectangle(0, m_sashPosition, w1, m_sashSize); + if ( (GetWindowStyleFlag() & wxSP_3DBORDER) == wxSP_3DBORDER) + { + x1 = 2; w1 -= 3; + } + dc.DrawRectangle(x1, m_sashPosition, w1, m_sashSize); } } @@ -512,7 +653,7 @@ void wxSplitterWindow::DrawSashTracker(int x, int y) ClientToScreen(&x1, &y1); ClientToScreen(&x2, &y2); - screenDC.SetLogicalFunction(wxXOR); + screenDC.SetLogicalFunction(wxINVERT); screenDC.SetPen(*m_sashTrackerPen); screenDC.SetBrush(*wxTRANSPARENT_BRUSH); @@ -524,46 +665,128 @@ void wxSplitterWindow::DrawSashTracker(int x, int y) screenDC.SetBrush(wxNullBrush); } +int wxSplitterWindow::GetWindowSize() const +{ + wxSize size = GetClientSize(); + + return m_splitMode == wxSPLIT_VERTICAL ? size.x : size.y; +} + +int wxSplitterWindow::AdjustSashPosition(int sashPos) const +{ + int window_size = GetWindowSize(); + + wxWindow *win; + + 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 = window_size - minSize - GetBorderSize(); + if ( sashPos > maxSize ) + sashPos = maxSize; + } + + return sashPos; +} + +void wxSplitterWindow::DoSetSashPosition(int sashPos) +{ + int newSashPosition = AdjustSashPosition(sashPos); + + if ( newSashPosition != m_sashPosition ) + { + m_sashPosition = newSashPosition; + + wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED, this); + event.m_data.pos = m_sashPosition; + + (void)DoSendEvent(event); + } +} + // Position and size subwindows. // Note that the border size applies to each subwindow, not // including the edges next to the sash. void wxSplitterWindow::SizeWindows() { + // check if we have delayed setting the real sash position + if ( m_requestedSashPosition != INT_MAX ) + { + int newSashPosition = ConvertSashPosition(m_requestedSashPosition); + if ( newSashPosition != m_sashPosition ) + { + DoSetSashPosition(newSashPosition); + } + + if ( newSashPosition == m_sashPosition ) + { + // don't update it any more + m_requestedSashPosition = INT_MAX; + } + } + int w, h; GetClientSize(&w, &h); - if ( m_windowOne && !m_windowTwo ) + if ( GetWindow1() && !GetWindow2() ) { - m_windowOne->SetSize(m_borderSize, m_borderSize, w - 2*m_borderSize, h - 2*m_borderSize); + GetWindow1()->SetSize(GetBorderSize(), GetBorderSize(), + w - 2*GetBorderSize(), h - 2*GetBorderSize()); } - else if ( m_windowOne && m_windowTwo ) + else if ( GetWindow1() && GetWindow2() ) { - if (m_splitMode == wxSPLIT_VERTICAL) + if (GetSplitMode() == wxSPLIT_VERTICAL) { - int x1 = m_borderSize; - int y1 = m_borderSize; - int w1 = m_sashPosition - m_borderSize; - int h1 = h - 2*m_borderSize; - - int x2 = m_sashPosition + m_sashSize; - int y2 = m_borderSize; - int w2 = w - 2*m_borderSize - m_sashSize - w1; - int h2 = h - 2*m_borderSize; - - m_windowOne->SetSize(x1, y1, w1, h1); - m_windowTwo->SetSize(x2, y2, w2, h2); + 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); } else { - m_windowOne->SetSize(m_borderSize, m_borderSize, - w - 2*m_borderSize, m_sashPosition - m_borderSize); - m_windowTwo->SetSize(m_borderSize, m_sashPosition + m_sashSize, - w - 2*m_borderSize, h - 2*m_borderSize - m_sashSize - (m_sashPosition - m_borderSize)); + GetWindow1()->SetSize(GetBorderSize(), GetBorderSize(), + w - 2*GetBorderSize(), GetSashPosition() - GetBorderSize()); + GetWindow2()->SetSize(GetBorderSize(), GetSashPosition() + GetSashSize(), + w - 2*GetBorderSize(), h - 2*GetBorderSize() - GetSashSize() - (GetSashPosition() - GetBorderSize())); } } wxClientDC dc(this); - DrawBorders(dc); + if ( GetBorderSize() > 0 ) + DrawBorders(dc); DrawSash(dc); + + SetNeedUpdating(FALSE); } // Set pane for unsplit window @@ -571,59 +794,52 @@ void wxSplitterWindow::Initialize(wxWindow *window) { m_windowOne = window; m_windowTwo = (wxWindow *) NULL; - m_sashPosition = 0; + 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) +bool wxSplitterWindow::DoSplit(wxSplitMode mode, + wxWindow *window1, wxWindow *window2, + int sashPosition) { if ( IsSplit() ) return FALSE; - int w, h; - GetClientSize(&w, &h); - - m_splitMode = wxSPLIT_VERTICAL; + m_splitMode = mode; m_windowOne = window1; m_windowTwo = window2; - if ( sashPosition > 0 ) - m_sashPosition = sashPosition; - else if ( sashPosition < 0 ) - m_sashPosition = w - sashPosition; - else // default - m_sashPosition = w/2; + + // 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 = sashPosition; + + DoSetSashPosition(ConvertSashPosition(sashPosition)); SizeWindows(); 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; - 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) @@ -631,72 +847,71 @@ bool wxSplitterWindow::Unsplit(wxWindow *toRemove) if ( ! IsSplit() ) return FALSE; + wxWindow *win = NULL; if ( toRemove == NULL || toRemove == m_windowTwo) { - wxWindow *win = m_windowTwo ; + win = m_windowTwo ; m_windowTwo = (wxWindow *) NULL; - m_sashPosition = 0; - OnUnsplit(win); - SizeWindows(); } else if ( toRemove == m_windowOne ) { - wxWindow *win = m_windowOne ; + win = m_windowOne ; m_windowOne = m_windowTwo; m_windowTwo = (wxWindow *) NULL; - m_sashPosition = 0; - OnUnsplit(win); - SizeWindows(); } else + { + wxFAIL_MSG(wxT("splitter: attempt to remove a non-existent window")); + return FALSE; + } + + OnUnsplit(win); + DoSetSashPosition(0); + SizeWindows(); return TRUE; } -void wxSplitterWindow::SetSashPosition(int position, bool redraw) +// Replace a window with another one +bool wxSplitterWindow::ReplaceWindow(wxWindow *winOld, wxWindow *winNew) { - m_sashPosition = position; + wxCHECK_MSG( winOld, FALSE, wxT("use one of Split() functions instead") ); + wxCHECK_MSG( winNew, FALSE, wxT("use Unsplit() functions instead") ); - if ( redraw ) + if ( winOld == m_windowTwo ) { - SizeWindows(); + m_windowTwo = winNew; } + else if ( winOld == m_windowOne ) + { + m_windowOne = winNew; + } + else + { + wxFAIL_MSG(wxT("splitter: attempt to replace a non-existent window")); + + return FALSE; + } + + SizeWindows(); + + return TRUE; } -bool wxSplitterWindow::OnSashPositionChange(int newSashPosition) +void wxSplitterWindow::SetMinimumPaneSize(int min) { - // is the left/upper pane too small? - if ( newSashPosition < m_minimumPaneSize ) - return NULL; - - // is the right/lower pane too small? - int w, h; - GetClientSize(&w, &h); - - if ( m_splitMode == wxSPLIT_VERTICAL ) - { - if ( w - newSashPosition < m_minimumPaneSize ) - return FALSE; - } - else // m_splitMode = wxSPLIT_HORIZONTAL - { - if ( h - newSashPosition < m_minimumPaneSize ) - return FALSE; - } - - // it's ok to move sash - return TRUE; + m_minimumPaneSize = min; + SetSashPosition(m_sashPosition); // re-check limits } -// Called when the sash is double-clicked. -// The default behaviour is to remove the sash if the -// minimum pane size is zero. -void wxSplitterWindow::OnDoubleClickSash(int WXUNUSED(x), int WXUNUSED(y) ) +void wxSplitterWindow::SetSashPosition(int position, bool redraw) { - if ( GetMinimumPaneSize() == 0 ) + DoSetSashPosition(position); + + if ( redraw ) { - Unsplit(); + SizeWindows(); } } @@ -711,29 +926,157 @@ void wxSplitterWindow::InitColours() wxDELETE( m_hilightPen ); // Shadow colours -#if defined(__WIN95__) - wxColour faceColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); +#ifndef __WIN16__ + wxColour faceColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); m_facePen = new wxPen(faceColour, 1, wxSOLID); m_faceBrush = new wxBrush(faceColour, wxSOLID); - wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW)); + wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW)); m_mediumShadowPen = new wxPen(mediumShadowColour, 1, wxSOLID); - wxColour darkShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DDKSHADOW)); + wxColour darkShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DDKSHADOW)); m_darkShadowPen = new wxPen(darkShadowColour, 1, wxSOLID); - wxColour lightShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DLIGHT)); + wxColour lightShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT)); m_lightShadowPen = new wxPen(lightShadowColour, 1, wxSOLID); - wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT)); + wxColour hilightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT)); m_hilightPen = new wxPen(hilightColour, 1, wxSOLID); -#else // !Win32 +#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 // Win32/!Win32 +#endif // __WIN16__ +} + +bool wxSplitterWindow::DoSendEvent(wxSplitterEvent& event) +{ + return !GetEventHandler()->ProcessEvent(event) || event.IsAllowed(); +} + +// --------------------------------------------------------------------------- +// wxSplitterWindow virtual functions: they now just generate the events +// --------------------------------------------------------------------------- + +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; + + // 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 window_size = GetWindowSize(); + + 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; + } + if ( newSashPosition >= window_size - UNSPLIT_THRESHOLD ) + { + // threshold bottom/right check + newSashPosition = window_size; + unsplit_scenario = TRUE; + } + } + + if ( !unsplit_scenario ) + { + // If resultant pane would be too small, enlarge it + 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; + + // 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; + + if ( !DoSendEvent(event) ) + { + // the event handler vetoed the change + newSashPosition = -1; + } + else + { + // it could have been changed by it + newSashPosition = event.GetSashPosition(); + } + + 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::OnDoubleClickSash(int x, int y) +{ + // 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) ) + { + if ( GetMinimumPaneSize() == 0 || m_permitUnsplitAlways ) + { + Unsplit(); + } + } + //else: blocked by user +} + +void wxSplitterWindow::OnUnsplit(wxWindow *winRemoved) +{ + // do it before calling the event handler which may delete the window + winRemoved->Show(FALSE); + + wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_UNSPLIT, this); + event.m_data.win = winRemoved; + + (void)DoSendEvent(event); +} + +#ifdef __WXMSW__ + +// this is currently called (and needed) under MSW only... +void wxSplitterWindow::OnSetCursor(wxSetCursorEvent& event) +{ + // 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()) ) + { + // default processing is ok + event.Skip(); + } + //else: do nothing, in particular, don't call Skip() +} + +#endif // wxMSW +