X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/17867d61dcd061d3f39872446bc00c63d8a2a815..50494a55ae4f0ec07a15b811dbcce5a8ae9fc7bc:/src/generic/splitter.cpp diff --git a/src/generic/splitter.cpp b/src/generic/splitter.cpp index 0288be3808..31aea495e1 100644 --- a/src/generic/splitter.cpp +++ b/src/generic/splitter.cpp @@ -21,29 +21,39 @@ #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" -#if !USE_SHARED_LIBRARY IMPLEMENT_DYNAMIC_CLASS(wxSplitterWindow, wxWindow) +IMPLEMENT_DYNAMIC_CLASS(wxSplitterEvent, wxCommandEvent) BEGIN_EVENT_TABLE(wxSplitterWindow, wxWindow) EVT_PAINT(wxSplitterWindow::OnPaint) EVT_SIZE(wxSplitterWindow::OnSize) + EVT_IDLE(wxSplitterWindow::OnIdle) EVT_MOUSE_EVENTS(wxSplitterWindow::OnMouseEvent) + + 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) END_EVENT_TABLE() -#endif wxSplitterWindow::wxSplitterWindow() { m_splitMode = wxSPLIT_VERTICAL; + m_permitUnsplitAlways = FALSE; m_windowOne = (wxWindow *) NULL; m_windowTwo = (wxWindow *) NULL; m_dragMode = wxSPLIT_DRAG_NONE; @@ -64,6 +74,7 @@ wxSplitterWindow::wxSplitterWindow() m_facePen = (wxPen *) NULL; m_hilightPen = (wxPen *) NULL; m_minimumPaneSize = 0; + m_needUpdating = FALSE; } wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, @@ -74,6 +85,7 @@ wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, : wxWindow(parent, id, pos, size, style, name) { m_splitMode = wxSPLIT_VERTICAL; + m_permitUnsplitAlways = (style & wxSP_PERMIT_UNSPLIT) != 0; m_windowOne = (wxWindow *) NULL; m_windowTwo = (wxWindow *) NULL; m_dragMode = wxSPLIT_DRAG_NONE; @@ -116,6 +128,8 @@ wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, // For debugging purposes, to see the background. // SetBackground(wxBLUE_BRUSH); + + m_needUpdating = FALSE; } wxSplitterWindow::~wxSplitterWindow() @@ -140,10 +154,16 @@ void wxSplitterWindow::OnPaint(wxPaintEvent& WXUNUSED(event)) DrawSash(dc); } +void wxSplitterWindow::OnIdle(wxIdleEvent& WXUNUSED(event)) +{ + if (m_needUpdating) + SizeWindows(); +} + void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) { - long x, y; - event.Position(&x, &y); + wxCoord x = (wxCoord)event.GetX(), + y = (wxCoord)event.GetY(); // reset the cursor #ifdef __WXMOTIF__ @@ -153,6 +173,7 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) SetCursor(wxCursor()); #endif + if (event.LeftDown()) { if ( SashHitTest(x, y) ) @@ -161,7 +182,11 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) m_dragMode = wxSPLIT_DRAG_DRAGGING; - DrawSashTracker(x, y); + if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0) + { + DrawSashTracker(x, y); + } + m_oldX = x; m_oldY = y; return; @@ -174,66 +199,63 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) ReleaseMouse(); // Erase old tracker - DrawSashTracker(m_oldX, m_oldY); + if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0) + { + 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); - if ( m_splitMode == wxSPLIT_VERTICAL ) + 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) ) { - if ( !OnSashPositionChange(x) ) + new_sash_position = eventSplitter.GetSashPosition(); + if ( new_sash_position == -1 ) + { + // change not allowed return; + } + } - if ( x <= 4 ) + if ( m_permitUnsplitAlways + || m_minimumPaneSize == 0 ) + { + // Deal with possible unsplit scenarios + if ( new_sash_position == 0 ) { // We remove the first window from the view wxWindow *removedWindow = m_windowOne; m_windowOne = m_windowTwo; m_windowTwo = (wxWindow *) NULL; - - OnUnsplit(removedWindow); + SendUnsplitEvent(removedWindow); m_sashPosition = 0; } - else if ( x >= (w - 4) ) + 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); + SendUnsplitEvent(removedWindow); m_sashPosition = 0; } else { - m_sashPosition = x; + m_sashPosition = new_sash_position; } } - else // m_splitMode == wxSPLIT_VERTICAL + 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; + m_sashPosition = new_sash_position; + } - 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; - } - } // m_splitMode == wxSPLIT_VERTICAL SizeWindows(); } // left up && dragging else if (event.Moving() && !event.Dragging()) @@ -250,42 +272,135 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) SetCursor(*m_sashCursorNS); } } +#ifdef __WXGTK__ + else + { + // where else do we unset the cursor? + SetCursor(* wxSTANDARD_CURSOR); + } +#endif // __WXGTK__ } - else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING)) + else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING)) { + // 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) ) + { + new_sash_position = eventSplitter.GetSashPosition(); + if ( new_sash_position == -1 ) + { + // change not allowed + return; + } + } + // Erase old tracker - DrawSashTracker(m_oldX, m_oldY); + if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0) + { + DrawSashTracker(m_oldX, m_oldY); + } - // Draw new one - DrawSashTracker(x, y); + if (m_splitMode == wxSPLIT_VERTICAL) + x = new_sash_position; + else + y = new_sash_position; + + if (new_sash_position != -1) + { + // Only modify if permitted + 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__ - m_oldX = x; - m_oldY = y; + // Draw new one + if ((GetWindowStyleFlag() & wxSP_LIVE_UPDATE) == 0) + { + DrawSashTracker(m_oldX, m_oldY); + } + else + { + m_sashPosition = new_sash_position; + m_needUpdating = TRUE; + } } else if ( event.LeftDClick() ) { - OnDoubleClickSash(x, y); + wxSplitterEvent eventSplitter(wxEVT_COMMAND_SPLITTER_DOUBLECLICKED, + this); + eventSplitter.m_data.pt.x = x; + eventSplitter.m_data.pt.y = y; + + (void)GetEventHandler()->ProcessEvent(eventSplitter); } } -void wxSplitterWindow::OnSize(wxSizeEvent& WXUNUSED(event)) +void wxSplitterWindow::OnSize(wxSizeEvent& event) { - int cw, ch; - GetClientSize( &cw, &ch ); - if ( m_windowTwo ) + // 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() ) { - if ( m_splitMode == wxSPLIT_VERTICAL ) - { - if ( m_sashPosition >= (cw - 5) ) - m_sashPosition = wxMax(10, cw - 40); - } - if ( m_splitMode == wxSPLIT_HORIZONTAL ) + parent = parent->GetParent(); + } + + 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!")); + } + + if ( iconized ) + { + event.Skip(); + } + else + { + int cw, ch; + GetClientSize( &cw, &ch ); + if ( m_windowTwo ) { - if ( m_sashPosition >= (ch - 5) ) - m_sashPosition = wxMax(10, ch - 40); + 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); + } } + + SizeWindows(); } - SizeWindows(); } bool wxSplitterWindow::SashHitTest(int x, int y, int tolerance) @@ -307,8 +422,6 @@ bool wxSplitterWindow::SashHitTest(int x, int y, int tolerance) else return FALSE; } - - return FALSE; } // Draw 3D effect borders @@ -319,22 +432,30 @@ void wxSplitterWindow::DrawBorders(wxDC& dc) if ( GetWindowStyleFlag() & wxSP_3D ) { + + 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 ) { @@ -362,41 +483,43 @@ void wxSplitterWindow::DrawSash(wxDC& dc) { dc.SetPen(*m_facePen); dc.SetBrush(*m_faceBrush); - dc.DrawRectangle(m_sashPosition + 2, 0, m_sashSize - 4, h); + 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); 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); 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, m_borderSize, m_sashPosition+m_sashSize-1, h-m_borderSize ); } else { dc.SetPen(*m_facePen); dc.SetBrush(*m_faceBrush); - dc.DrawRectangle(0, m_sashPosition + 2, w, m_sashSize - 4); + 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); dc.SetPen(*m_mediumShadowPen); - dc.DrawLine(1, m_sashPosition+m_sashSize-2, w-1, m_sashPosition+m_sashSize-2); + dc.DrawLine(m_borderSize-1, m_sashPosition+m_sashSize-2, w-m_borderSize+1, m_sashPosition+m_sashSize-2); dc.SetPen(*m_darkShadowPen); - dc.DrawLine(2, m_sashPosition+m_sashSize-1, w-2, m_sashPosition+m_sashSize-1); + dc.DrawLine(m_borderSize, m_sashPosition+m_sashSize-1, w-m_borderSize, m_sashPosition+m_sashSize-1); } } else @@ -471,7 +594,7 @@ 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); @@ -494,6 +617,7 @@ void wxSplitterWindow::SizeWindows() if ( m_windowOne && !m_windowTwo ) { m_windowOne->SetSize(m_borderSize, m_borderSize, w - 2*m_borderSize, h - 2*m_borderSize); + } else if ( m_windowOne && m_windowTwo ) { @@ -511,6 +635,7 @@ void wxSplitterWindow::SizeWindows() m_windowOne->SetSize(x1, y1, w1, h1); m_windowTwo->SetSize(x2, y2, w2, h2); + } else { @@ -518,10 +643,12 @@ void wxSplitterWindow::SizeWindows() 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)); + } } wxClientDC dc(this); - DrawBorders(dc); + if ( m_borderSize > 0 ) + DrawBorders(dc); DrawSash(dc); } @@ -604,12 +731,12 @@ bool wxSplitterWindow::Unsplit(wxWindow *toRemove) } else { - wxFAIL_MSG("splitter: attempt to remove a non-existent window"); + wxFAIL_MSG(wxT("splitter: attempt to remove a non-existent window")); return FALSE; } - OnUnsplit(win); + SendUnsplitEvent(win); m_sashPosition = 0; SizeWindows(); @@ -619,8 +746,8 @@ bool wxSplitterWindow::Unsplit(wxWindow *toRemove) // Replace a window with another one bool wxSplitterWindow::ReplaceWindow(wxWindow *winOld, wxWindow *winNew) { - wxCHECK_MSG( winOld, FALSE, "use one of Split() functions instead" ); - wxCHECK_MSG( winNew, FALSE, "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 ) { @@ -632,7 +759,7 @@ bool wxSplitterWindow::ReplaceWindow(wxWindow *winOld, wxWindow *winNew) } else { - wxFAIL_MSG("splitter: attempt to replace a non-existent window"); + wxFAIL_MSG(wxT("splitter: attempt to replace a non-existent window")); return FALSE; } @@ -652,42 +779,6 @@ void wxSplitterWindow::SetSashPosition(int position, bool redraw) } } -bool wxSplitterWindow::OnSashPositionChange(int newSashPosition) -{ - // 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; -} - -// 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) ) -{ - if ( GetMinimumPaneSize() == 0 ) - { - Unsplit(); - } -} - // Initialize colours void wxSplitterWindow::InitColours() { @@ -725,3 +816,92 @@ void wxSplitterWindow::InitColours() #endif // Win32/!Win32 } +void wxSplitterWindow::SendUnsplitEvent(wxWindow *winRemoved) +{ + wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_UNSPLIT, this); + event.m_data.win = winRemoved; + + (void)GetEventHandler()->ProcessEvent(event); +} + +// --------------------------------------------------------------------------- +// splitter event handlers +// --------------------------------------------------------------------------- + +void wxSplitterWindow::OnSashPosChanged(wxSplitterEvent& event) +{ + // If within UNSPLIT_THRESHOLD from edge, set to edge to cause closure. + const int UNSPLIT_THRESHOLD = 4; + + int newSashPosition = event.GetSashPosition(); + + // Obtain relevant window dimension for bottom / right threshold check + int w, h; + GetClientSize(&w, &h); + int window_size = (m_splitMode == wxSPLIT_VERTICAL) ? w : h ; + + 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 + if ( newSashPosition < m_minimumPaneSize ) + newSashPosition = m_minimumPaneSize; + 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; + + // for compatibility, call the virtual function + if ( !OnSashPositionChange(newSashPosition) ) + { + newSashPosition = -1; + } + + event.SetSashPosition(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) +{ + // for compatibility, call the virtual function + OnDoubleClickSash(event.GetX(), event.GetY()); + + if ( GetMinimumPaneSize() == 0 || m_permitUnsplitAlways ) + { + Unsplit(); + } +} + +void wxSplitterWindow::OnUnsplitEvent(wxSplitterEvent& event) +{ + 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); +}