X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a93ca2018353b78e59b301f0a932d0409b45ab99..9111db680241332df07dd22db32973e20f77fb1a:/src/generic/splitter.cpp diff --git a/src/generic/splitter.cpp b/src/generic/splitter.cpp index 7f0ec5df0f..0d926085d4 100644 --- a/src/generic/splitter.cpp +++ b/src/generic/splitter.cpp @@ -6,23 +6,22 @@ // 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/wx.h" #endif #include @@ -42,11 +41,11 @@ BEGIN_EVENT_TABLE(wxSplitterWindow, wxWindow) END_EVENT_TABLE() #endif -wxSplitterWindow::wxSplitterWindow(void) +wxSplitterWindow::wxSplitterWindow() { m_splitMode = wxSPLIT_VERTICAL; - m_windowOne = NULL; - m_windowTwo = NULL; + m_windowOne = (wxWindow *) NULL; + m_windowTwo = (wxWindow *) NULL; m_dragMode = wxSPLIT_DRAG_NONE; m_oldX = 0; m_oldY = 0; @@ -55,25 +54,28 @@ wxSplitterWindow::wxSplitterWindow(void) m_sashSize = 7; m_borderSize = 2; m_sashPosition = 0; - m_sashCursorWE = NULL; - m_sashCursorNS = NULL; - m_sashTrackerPen = NULL; - m_lightShadowPen = NULL; - m_mediumShadowPen = NULL; - m_darkShadowPen = NULL; - m_faceBrush = NULL; - m_facePen = NULL; - m_hilightPen = NULL; + 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; } -wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, const wxPoint& pos, - const wxSize& size, long style, const wxString& name) - :wxWindow(parent, id, pos, size, style, name) +wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name) + : wxWindow(parent, id, pos, size, style, name) { m_splitMode = wxSPLIT_VERTICAL; - m_windowOne = NULL; - m_windowTwo = NULL; + m_windowOne = (wxWindow *) NULL; + m_windowTwo = (wxWindow *) NULL; m_dragMode = wxSPLIT_DRAG_NONE; m_oldX = 0; m_oldY = 0; @@ -86,12 +88,12 @@ wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, const wxPoin m_sashCursorWE = new wxCursor(wxCURSOR_SIZEWE); m_sashCursorNS = new wxCursor(wxCURSOR_SIZENS); m_sashTrackerPen = new wxPen(*wxBLACK, 2, wxSOLID); - m_lightShadowPen = NULL; - m_mediumShadowPen = NULL; - m_darkShadowPen = NULL; - m_faceBrush = NULL; - m_facePen = NULL; - m_hilightPen = 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; if ( style & wxSP_3D ) { @@ -112,13 +114,11 @@ wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, const wxPoin // Eventually, we'll respond to colour change messages InitColours(); - SetDoubleClick(TRUE); - // For debugging purposes, to see the background. // SetBackground(wxBLUE_BRUSH); } -wxSplitterWindow::~wxSplitterWindow(void) +wxSplitterWindow::~wxSplitterWindow() { delete m_sashCursorWE; delete m_sashCursorNS; @@ -140,176 +140,124 @@ void wxSplitterWindow::OnPaint(wxPaintEvent& WXUNUSED(event)) DrawSash(dc); } + void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) { - long x, y; - event.Position(&x, &y); + long x = event.GetX(); + long y = event.GetY(); - if (event.LeftDown()) - { + // reset the cursor +#ifdef __WXMOTIF__ + SetCursor(* wxSTANDARD_CURSOR); +#endif +#ifdef __WXMSW__ + SetCursor(wxCursor()); +#endif + + // under wxGTK the method above causes the mouse + // to flicker so we set the standard cursor only + // when leaving the window and when moving over + // non-sash parts of the window. this should work + // on the other platforms as well, but who knows. +#ifdef __WXGTK__ + if (event.Leaving()) + SetCursor(* wxSTANDARD_CURSOR); +#endif + + if (event.LeftDown()) + { if ( SashHitTest(x, y) ) { - 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; + CaptureMouse(); - SetCursor(*wxSTANDARD_CURSOR); + m_dragMode = wxSPLIT_DRAG_DRAGGING; + + DrawSashTracker(x, y); + m_oldX = x; + m_oldY = y; + return; + } } - else if (event.LeftUp() && m_dragMode == wxSPLIT_DRAG_DRAGGING) - { + 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(); + ReleaseMouse(); + // Erase old tracker DrawSashTracker(m_oldX, m_oldY); - // End drawing on top (frees the window used for drawing - // over the screen) - wxScreenDC::EndDrawingOnTop(); - + // Obtain window size. We are only interested in the dimension the sash + // splits up int w, h; - GetClientSize(&w, &h); - if ( m_splitMode == wxSPLIT_VERTICAL ) + GetClientSize(&w, &h); + int window_size = (m_splitMode == wxSPLIT_VERTICAL ? w : h ); + int new_sash_position = + (int) ( m_splitMode == wxSPLIT_VERTICAL ? x : y ); + + if ( !OnSashPositionChange(new_sash_position) ) + return; + + if ( new_sash_position == 0 ) { - // First check if we should veto this resize because - // the pane size is too small - if ( wxMax(x, 0) < m_minimumPaneSize || wxMax((w - x), 0) < m_minimumPaneSize) - return; - - if ( x <= 4 ) - { - // We remove the first window from the view - wxWindow *removedWindow = m_windowOne; - m_windowOne = m_windowTwo; - m_windowTwo = NULL; - - OnUnsplit(removedWindow); - m_sashPosition = 0; - } - else if ( x >= (w - 4) ) - { - // We remove the second window from the view - wxWindow *removedWindow = m_windowTwo; - m_windowTwo = NULL; - OnUnsplit(removedWindow); - m_sashPosition = 0; - } - else - { - m_sashPosition = x; - } + // 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 ( new_sash_position == window_size ) + { + // We remove the second window from the view + wxWindow *removedWindow = m_windowTwo; + m_windowTwo = (wxWindow *) NULL; + OnUnsplit(removedWindow); + m_sashPosition = 0; } else { - // First check if we should veto this resize because - // the pane size is too small - if ( wxMax(y, 0) < m_minimumPaneSize || wxMax((h - y), 0) < m_minimumPaneSize) - return; - - if ( y <= 4 ) - { - // We remove the first window from the view - wxWindow *removedWindow = m_windowOne; - m_windowOne = m_windowTwo; - m_windowTwo = 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 = NULL; - OnUnsplit(removedWindow); - m_sashPosition = 0; - } - else - { - m_sashPosition = y; - } + m_sashPosition = new_sash_position; } SizeWindows(); - } - else if (event.Moving() && !event.Dragging()) - { + } // left up && dragging + else if (event.Moving() && !event.Dragging()) + { // Just change the cursor if required if ( SashHitTest(x, y) ) { - if ( m_splitMode == wxSPLIT_VERTICAL ) + if ( m_splitMode == wxSPLIT_VERTICAL ) { - SetCursor(*m_sashCursorWE); + SetCursor(*m_sashCursorWE); } else { - SetCursor(*m_sashCursorNS); + SetCursor(*m_sashCursorNS); } } +#ifdef __WXGTK__ else - { - SetCursor(*wxSTANDARD_CURSOR); - } - } - 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) ) - { - m_dragMode = wxSPLIT_DRAG_DRAGGING; - DrawSashTracker(x, y); - } - else - { - if ( m_dragMode == wxSPLIT_DRAG_DRAGGING ) - { - // Erase old tracker - DrawSashTracker(m_oldX, m_oldY); + // where else do we unset the cursor? + SetCursor(* wxSTANDARD_CURSOR); + } +#endif + } + else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING)) + { + // Erase old tracker + DrawSashTracker(m_oldX, m_oldY); + + // Draw new one + DrawSashTracker(x, y); - // Draw new one - DrawSashTracker(x, y); - } - } m_oldX = x; m_oldY = y; - } + } else if ( event.LeftDClick() ) { OnDoubleClickSash(x, y); } - else - { - } } void wxSplitterWindow::OnSize(wxSizeEvent& WXUNUSED(event)) @@ -420,8 +368,8 @@ void wxSplitterWindow::DrawSash(wxDC& dc) dc.DrawLine(m_sashPosition+m_sashSize-2, 1, m_sashPosition+m_sashSize-2, h-1); dc.SetPen(*m_darkShadowPen); - dc.DrawLine(m_sashPosition+m_sashSize-1, 2, m_sashPosition+m_sashSize-1, h-2); - } + dc.DrawLine(m_sashPosition+m_sashSize-1, 2, m_sashPosition+m_sashSize-1, h-2); + } else { dc.SetPen(*m_facePen); @@ -530,7 +478,7 @@ void wxSplitterWindow::DrawSashTracker(int x, int y) // Position and size subwindows. // Note that the border size applies to each subwindow, not // including the edges next to the sash. -void wxSplitterWindow::SizeWindows(void) +void wxSplitterWindow::SizeWindows() { int w, h; GetClientSize(&w, &h); @@ -553,10 +501,8 @@ void wxSplitterWindow::SizeWindows(void) 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); + m_windowOne->SetSize(x1, y1, w1, h1); + m_windowTwo->SetSize(x2, y2, w2, h2); } else { @@ -575,7 +521,7 @@ void wxSplitterWindow::SizeWindows(void) void wxSplitterWindow::Initialize(wxWindow *window) { m_windowOne = window; - m_windowTwo = NULL; + m_windowTwo = (wxWindow *) NULL; m_sashPosition = 0; } @@ -587,13 +533,18 @@ bool wxSplitterWindow::SplitVertically(wxWindow *window1, wxWindow *window2, int if ( IsSplit() ) return FALSE; + int w, h; + GetClientSize(&w, &h); + m_splitMode = wxSPLIT_VERTICAL; m_windowOne = window1; m_windowTwo = window2; - if ( sashPosition == -1 ) - m_sashPosition = 100; - else + if ( sashPosition > 0 ) m_sashPosition = sashPosition; + else if ( sashPosition < 0 ) + m_sashPosition = w - sashPosition; + else // default + m_sashPosition = w/2; SizeWindows(); @@ -605,13 +556,18 @@ bool wxSplitterWindow::SplitHorizontally(wxWindow *window1, wxWindow *window2, i if ( IsSplit() ) return FALSE; + int w, h; + GetClientSize(&w, &h); + m_splitMode = wxSPLIT_HORIZONTAL; m_windowOne = window1; m_windowTwo = window2; - if ( sashPosition == -1 ) - m_sashPosition = 100; - else + if ( sashPosition > 0 ) m_sashPosition = sashPosition; + else if ( sashPosition < 0 ) + m_sashPosition = h - sashPosition; + else // default + m_sashPosition = h/2; SizeWindows(); @@ -626,25 +582,54 @@ bool wxSplitterWindow::Unsplit(wxWindow *toRemove) if ( ! IsSplit() ) return FALSE; + wxWindow *win = NULL; if ( toRemove == NULL || toRemove == m_windowTwo) { - wxWindow *win = m_windowTwo ; - m_windowTwo = NULL; - m_sashPosition = 0; - OnUnsplit(win); - SizeWindows(); + win = m_windowTwo ; + m_windowTwo = (wxWindow *) NULL; } else if ( toRemove == m_windowOne ) { - wxWindow *win = m_windowOne ; + win = m_windowOne ; m_windowOne = m_windowTwo; - m_windowTwo = NULL; - m_sashPosition = 0; - OnUnsplit(win); - SizeWindows(); + m_windowTwo = (wxWindow *) NULL; } else + { + wxFAIL_MSG(_T("splitter: attempt to remove a non-existent window")); + return FALSE; + } + + OnUnsplit(win); + m_sashPosition = 0; + SizeWindows(); + + return TRUE; +} + +// Replace a window with another one +bool wxSplitterWindow::ReplaceWindow(wxWindow *winOld, wxWindow *winNew) +{ + wxCHECK_MSG( winOld, FALSE, _T("use one of Split() functions instead") ); + wxCHECK_MSG( winNew, FALSE, _T("use Unsplit() functions instead") ); + + if ( winOld == m_windowTwo ) + { + m_windowTwo = winNew; + } + else if ( winOld == m_windowOne ) + { + m_windowOne = winNew; + } + else + { + wxFAIL_MSG(_T("splitter: attempt to replace a non-existent window")); + + return FALSE; + } + + SizeWindows(); return TRUE; } @@ -659,6 +644,45 @@ void wxSplitterWindow::SetSashPosition(int position, bool redraw) } } +bool wxSplitterWindow::OnSashPositionChange(int& newSashPosition) +{ + // If within UNSPLIT_THRESHOLD from edge, set to edge to cause closure. + const int UNSPLIT_THRESHOLD = 4; + + if (newSashPosition <= UNSPLIT_THRESHOLD) // threshold top / left check + { + newSashPosition = 0; + return TRUE; + } + + // Obtain relevant window dimension for bottom / right threshold check + int w, h; + GetClientSize(&w, &h); + int window_size = (m_splitMode == wxSPLIT_VERTICAL) ? w : h ; + + if ( newSashPosition >= window_size - UNSPLIT_THRESHOLD ) + { + newSashPosition = window_size; + return TRUE; + } + + // If resultant pane would be too small, enlarge it. + + // Check upper / left pane + if ( newSashPosition < m_minimumPaneSize ) + newSashPosition = m_minimumPaneSize; // NB: don't return just yet + + // Check lower / right pane (check even if sash was just adjusted) + if ( newSashPosition > window_size - m_minimumPaneSize ) + newSashPosition = window_size - m_minimumPaneSize; + + // 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; + return TRUE; +} + // Called when the sash is double-clicked. // The default behaviour is to remove the sash if the // minimum pane size is zero. @@ -671,50 +695,39 @@ void wxSplitterWindow::OnDoubleClickSash(int WXUNUSED(x), int WXUNUSED(y) ) } // Initialize colours -void wxSplitterWindow::InitColours(void) +void wxSplitterWindow::InitColours() { - if ( m_facePen ) - delete m_facePen; - if ( m_faceBrush ) - delete m_faceBrush; - if ( m_mediumShadowPen ) - delete m_mediumShadowPen; - if ( m_darkShadowPen ) - delete m_darkShadowPen; - if ( m_lightShadowPen ) - delete m_lightShadowPen; - if ( m_hilightPen ) - delete m_hilightPen; + wxDELETE( m_facePen ); + wxDELETE( m_faceBrush ); + wxDELETE( m_mediumShadowPen ); + wxDELETE( m_darkShadowPen ); + wxDELETE( m_lightShadowPen ); + wxDELETE( m_hilightPen ); // Shadow colours #if defined(__WIN95__) -// COLORREF ref = ::GetSysColor(COLOR_3DFACE); // Normally light grey wxColour faceColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); m_facePen = new wxPen(faceColour, 1, wxSOLID); m_faceBrush = new wxBrush(faceColour, wxSOLID); -// ref = ::GetSysColor(COLOR_3DSHADOW); // Normally dark grey wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW)); m_mediumShadowPen = new wxPen(mediumShadowColour, 1, wxSOLID); -// ref = ::GetSysColor(COLOR_3DDKSHADOW); // Normally black wxColour darkShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DDKSHADOW)); m_darkShadowPen = new wxPen(darkShadowColour, 1, wxSOLID); -// ref = ::GetSysColor(COLOR_3DLIGHT); // Normally light grey wxColour lightShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DLIGHT)); m_lightShadowPen = new wxPen(lightShadowColour, 1, wxSOLID); -// ref = ::GetSysColor(COLOR_3DHILIGHT); // Normally white wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT)); m_hilightPen = new wxPen(hilightColour, 1, wxSOLID); -#else +#else // !Win32 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 +#endif // Win32/!Win32 }