X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ca65c0440a7163e4e37e48b1c4329709d722db47..04fa04d8067d235ab45b5bc05b65f0679634b541:/src/generic/splitter.cpp?ds=sidebyside diff --git a/src/generic/splitter.cpp b/src/generic/splitter.cpp index a67ff0fcd4..03abc8baa5 100644 --- a/src/generic/splitter.cpp +++ b/src/generic/splitter.cpp @@ -9,24 +9,23 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma implementation "splitter.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" -#if wxUSE_SPLITTER - #ifdef __BORLANDC__ #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" @@ -38,14 +37,12 @@ #include "wx/renderer.h" -#include "wx/splitter.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) @@ -64,15 +61,25 @@ BEGIN_EVENT_TABLE(wxSplitterWindow, wxWindow) EVT_PAINT(wxSplitterWindow::OnPaint) EVT_SIZE(wxSplitterWindow::OnSize) EVT_MOUSE_EVENTS(wxSplitterWindow::OnMouseEvent) + EVT_MOUSE_CAPTURE_LOST(wxSplitterWindow::OnMouseCaptureLost) #if defined( __WXMSW__ ) || defined( __WXMAC__) EVT_SET_CURSOR(wxSplitterWindow::OnSetCursor) #endif // wxMSW - - WX_EVENT_TABLE_CONTROL_CONTAINER(wxSplitterWindow) 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, @@ -83,37 +90,45 @@ bool wxSplitterWindow::Create(wxWindow *parent, wxWindowID id, // allow TABbing from one window to the other style |= wxTAB_TRAVERSAL; - // we draw our border ourselves to blend the sash with it - style &= ~wxBORDER_MASK; - style |= wxBORDER_NONE; - if ( !wxWindow::Create(parent, id, pos, size, style, name) ) return false; + if (size.x >= 0) + m_lastSize.x = size.x; + if (size.y >= 0) + m_lastSize.y = size.y; + m_permitUnsplitAlways = (style & wxSP_PERMIT_UNSPLIT) != 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; } void wxSplitterWindow::Init() { - m_container.SetContainerWindow(this); - m_splitMode = wxSPLIT_VERTICAL; m_permitUnsplitAlways = true; - m_windowOne = (wxWindow *) NULL; - m_windowTwo = (wxWindow *) NULL; + m_windowOne = NULL; + m_windowTwo = NULL; m_dragMode = wxSPLIT_DRAG_NONE; m_oldX = 0; m_oldY = 0; - m_firstX = 0; - m_firstY = 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 = wxCursor(wxCURSOR_SIZEWE); m_sashCursorNS = wxCursor(wxCURSOR_SIZENS); - m_sashTrackerPen = new wxPen(*wxBLACK, 2, wxSOLID); + m_sashTrackerPen = new wxPen(*wxBLACK, 2, wxPENSTYLE_SOLID); m_needUpdating = false; m_isHot = false; @@ -167,6 +182,12 @@ void wxSplitterWindow::SetResizeCursor() 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 DrawSash(dc); } @@ -193,14 +214,13 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) int x = (int)event.GetX(), y = (int)event.GetY(); - if (GetWindowStyle() & wxSP_NOSASH) + if ( GetWindowStyle() & wxSP_NOSASH ) + { + event.Skip(); 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; + bool isLive = IsLive(this); if (event.LeftDown()) { @@ -219,13 +239,13 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) // shadow sash m_sashPositionCurrent = m_sashPosition; - DrawSashTracker(x, y); + m_oldX = (m_splitMode == wxSPLIT_VERTICAL ? m_sashPositionCurrent : x); + m_oldY = (m_splitMode != wxSPLIT_VERTICAL ? m_sashPositionCurrent : y); + DrawSashTracker(m_oldX, m_oldY); } - m_oldX = x; - m_oldY = y; - - SetResizeCursor(); + m_ptStart = wxPoint(x,y); + m_sashStart = m_sashPosition; return; } } @@ -253,10 +273,9 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) // 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 diff = m_splitMode == wxSPLIT_VERTICAL ? x - m_ptStart.x : y - m_ptStart.y; - int posSashOld = isLive ? m_sashPosition : m_sashPositionCurrent; - int posSashNew = OnSashPositionChanging(posSashOld + diff); + int posSashNew = OnSashPositionChanging(m_sashStart + diff); if ( posSashNew == -1 ) { // change not allowed @@ -271,22 +290,22 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) // We remove the first window from the view wxWindow *removedWindow = m_windowOne; m_windowOne = m_windowTwo; - m_windowTwo = (wxWindow *) NULL; + m_windowTwo = NULL; OnUnsplit(removedWindow); - wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_UNSPLIT, this); - event.m_data.win = removedWindow; - (void)DoSendEvent(event); + wxSplitterEvent eventUnsplit(wxEVT_COMMAND_SPLITTER_UNSPLIT, this); + eventUnsplit.m_data.win = removedWindow; + (void)DoSendEvent(eventUnsplit); SetSashPositionAndNotify(0); } else if ( posSashNew == GetWindowSize() ) { // We remove the second window from the view wxWindow *removedWindow = m_windowTwo; - m_windowTwo = (wxWindow *) NULL; + m_windowTwo = NULL; OnUnsplit(removedWindow); - wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_UNSPLIT, this); - event.m_data.win = removedWindow; - (void)DoSendEvent(event); + wxSplitterEvent eventUnsplit(wxEVT_COMMAND_SPLITTER_UNSPLIT, this); + eventUnsplit.m_data.win = removedWindow; + (void)DoSendEvent(eventUnsplit); SetSashPositionAndNotify(0); } else @@ -310,62 +329,53 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) } else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING)) { - int diff = m_splitMode == wxSPLIT_VERTICAL ? x - m_oldX : y - m_oldY; - if ( !diff ) - { - // nothing to do, mouse didn't really move far enough - return; - } + int diff = m_splitMode == wxSPLIT_VERTICAL ? x - m_ptStart.x : y - m_ptStart.y; - int posSashOld = isLive ? m_sashPosition : m_sashPositionCurrent; - int posSashNew = OnSashPositionChanging(posSashOld + diff); + int posSashNew = OnSashPositionChanging(m_sashStart + diff); if ( posSashNew == -1 ) { // change not allowed return; } - if ( posSashNew == m_sashPosition ) - return; - - // Erase old tracker if ( !isLive ) { - DrawSashTracker(m_oldX, m_oldY); - } + if ( posSashNew == m_sashPositionCurrent ) + return; - if (m_splitMode == wxSPLIT_VERTICAL) - x = posSashNew; - else - y = posSashNew; + m_sashPositionCurrent = posSashNew; - // Remember old positions - m_oldX = x; - m_oldY = y; + // Erase old tracker + DrawSashTracker(m_oldX, m_oldY); + + 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 ( !isLive ) - { - m_sashPositionCurrent = posSashNew; - + // Draw new one DrawSashTracker(m_oldX, m_oldY); } else { - SetSashPositionAndNotify(posSashNew); + 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; } } @@ -373,6 +383,26 @@ void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) { OnDoubleClickSash(x, y); } + else + { + event.Skip(); + } +} + +void wxSplitterWindow::OnMouseCaptureLost(wxMouseCaptureLostEvent& WXUNUSED(event)) +{ + if (m_dragMode != wxSPLIT_DRAG_DRAGGING) + return; + + m_dragMode = wxSPLIT_DRAG_NONE; + + SetCursor(* wxSTANDARD_CURSOR); + + // Erase old tracker + if ( !IsLive(this) ) + { + DrawSashTracker(m_oldX, m_oldY); + } } void wxSplitterWindow::OnSize(wxSizeEvent& event) @@ -397,6 +427,8 @@ void wxSplitterWindow::OnSize(wxSizeEvent& event) if ( iconized ) { + m_lastSize = wxSize(0,0); + event.Skip(); return; @@ -408,13 +440,36 @@ void wxSplitterWindow::OnSize(wxSizeEvent& event) GetClientSize(&w, &h); int size = m_splitMode == wxSPLIT_VERTICAL ? w : h; + + int old_size = m_splitMode == wxSPLIT_VERTICAL ? m_lastSize.x : m_lastSize.y; + if ( old_size != 0 ) + { + int delta = (int) ( (size - old_size)*m_sashGravity ); + if ( delta != 0 ) + { + int newPosition = m_sashPosition + delta; + if( newPosition < m_minimumPaneSize ) + newPosition = m_minimumPaneSize; + SetSashPositionAndNotify(newPosition); + } + } + if ( m_sashPosition >= size - 5 ) SetSashPositionAndNotify(wxMax(10, size - 40)); + m_lastSize = wxSize(w,h); } SizeWindows(); } +void wxSplitterWindow::SetSashGravity(double gravity) +{ + wxCHECK_RET( gravity >= 0. && gravity <= 1., + wxT("invalid gravity value") ); + + m_sashGravity = gravity; +} + bool wxSplitterWindow::SashHitTest(int x, int y, int tolerance) { if ( m_windowTwo == NULL || m_sashPosition == 0) @@ -464,7 +519,7 @@ void wxSplitterWindow::DrawSash(wxDC& dc) m_sashPosition, m_splitMode == wxSPLIT_VERTICAL ? wxVERTICAL : wxHORIZONTAL, - m_isHot ? wxCONTROL_CURRENT : 0 + m_isHot ? (int)wxCONTROL_CURRENT : 0 ); } @@ -480,33 +535,15 @@ 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); @@ -530,8 +567,6 @@ int wxSplitterWindow::GetWindowSize() const int wxSplitterWindow::AdjustSashPosition(int sashPos) const { - int window_size = GetWindowSize(); - wxWindow *win; win = GetWindow1(); @@ -560,8 +595,8 @@ int wxSplitterWindow::AdjustSashPosition(int sashPos) const if ( minSize == -1 || m_minimumPaneSize > minSize ) minSize = m_minimumPaneSize; - int maxSize = window_size - minSize - GetBorderSize(); - if ( sashPos > maxSize ) + int maxSize = GetWindowSize() - minSize - GetBorderSize() - GetSashSize(); + if ( maxSize > 0 && sashPos > maxSize && maxSize >= m_minimumPaneSize) sashPos = maxSize; } @@ -582,13 +617,21 @@ bool wxSplitterWindow::DoSetSashPosition(int sashPos) void wxSplitterWindow::SetSashPositionAndNotify(int sashPos) { - if ( DoSetSashPosition(sashPos) ) - { - wxSplitterEvent event(wxEVT_COMMAND_SPLITTER_SASH_POS_CHANGED, this); - event.m_data.pos = m_sashPosition; + // 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; - (void)DoSendEvent(event); - } + // 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. @@ -634,23 +677,31 @@ void wxSplitterWindow::SizeWindows() { w1 = size1; w2 = w - 2*border - sash - w1; - h1 = + if (w2 < 0) + w2 = 0; h2 = h - 2*border; + if (h2 < 0) + h2 = 0; + h1 = h2; x2 = size2; y2 = border; } else // horz splitter { - w1 = 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; } - GetWindow1()->SetSize(border, border, w1, h1); GetWindow2()->SetSize(x2, y2, w2, h2); + GetWindow1()->SetSize(border, border, w1, h1); } wxClientDC dc(this); @@ -662,11 +713,14 @@ void wxSplitterWindow::SizeWindows() // Set pane for unsplit window void wxSplitterWindow::Initialize(wxWindow *window) { - wxASSERT_MSG( (!window || (window && window->GetParent() == this)), - _T("windows in the splitter should have it as parent!") ); + 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_windowTwo = NULL; DoSetSashPosition(0); } @@ -681,24 +735,22 @@ bool wxSplitterWindow::DoSplit(wxSplitMode mode, return false; wxCHECK_MSG( window1 && window2, false, - _T("can not split with NULL window(s)") ); + wxT("cannot split with NULL window(s)") ); wxCHECK_MSG( window1->GetParent() == this && window2->GetParent() == this, false, - _T("windows in the splitter should have it as parent!") ); + 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; - // 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; - m_checkRequestedSashPosition = false; - - DoSetSashPosition(ConvertSashPosition(sashPosition)); - - SizeWindows(); + SetSashPosition(sashPosition, true); return true; } @@ -731,13 +783,13 @@ bool wxSplitterWindow::Unsplit(wxWindow *toRemove) 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 { @@ -816,6 +868,49 @@ bool wxSplitterWindow::DoSendEvent(wxSplitterEvent& event) return !GetEventHandler()->ProcessEvent(event) || event.IsAllowed(); } +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); + + 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); + + pSash = &sizeBest.y; + } + + // account for the sash if the window is actually split + if ( m_windowOne && m_windowTwo ) + *pSash += GetSashSize(); + + // account for the border too + int border = 2*GetBorderSize(); + sizeBest.x += border; + sizeBest.y += border; + + return sizeBest; +} + // --------------------------------------------------------------------------- // wxSplitterWindow virtual functions: they now just generate the events // --------------------------------------------------------------------------- @@ -863,12 +958,12 @@ int wxSplitterWindow::OnSashPositionChanging(int newSashPosition) { // 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; + // 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 //