X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6c9210a76a8ca51e490edc93644a04efd3238e38..3e822cd8d0bdf04cd2c7a3dddff61dcc211f7439:/src/generic/vlbox.cpp diff --git a/src/generic/vlbox.cpp b/src/generic/vlbox.cpp index 2f6276cd81..1c1f33174e 100644 --- a/src/generic/vlbox.cpp +++ b/src/generic/vlbox.cpp @@ -24,12 +24,15 @@ #pragma hdrstop #endif +#if wxUSE_LISTBOX + #ifndef WX_PRECOMP #include "wx/settings.h" #include "wx/dcclient.h" #endif //WX_PRECOMP #include "wx/vlbox.h" +#include "wx/dcbuffer.h" #include "wx/selstore.h" // ---------------------------------------------------------------------------- @@ -48,14 +51,18 @@ END_EVENT_TABLE() // implementation // ============================================================================ +IMPLEMENT_ABSTRACT_CLASS(wxVListBox, wxVScrolledWindow) + // ---------------------------------------------------------------------------- // wxVListBox creation // ---------------------------------------------------------------------------- void wxVListBox::Init() { - m_current = wxNOT_FOUND; + m_current = + m_anchor = wxNOT_FOUND; m_selStore = NULL; + m_doubleBuffer = NULL; } bool wxVListBox::Create(wxWindow *parent, @@ -65,19 +72,27 @@ bool wxVListBox::Create(wxWindow *parent, long style, const wxString& name) { + style |= wxWANTS_CHARS | wxFULL_REPAINT_ON_RESIZE; if ( !wxVScrolledWindow::Create(parent, id, pos, size, style, name) ) return false; - SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_LISTBOX)); - if ( style & wxLB_MULTIPLE ) m_selStore = new wxSelectionStore; + // make sure the native widget has the right colour since we do + // transparent drawing by default + SetBackgroundColour(GetBackgroundColour()); + m_colBgSel = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT); + + // flicker-free drawing requires this + SetBackgroundStyle(wxBG_STYLE_CUSTOM); + return true; } wxVListBox::~wxVListBox() { + delete m_doubleBuffer; delete m_selStore; } @@ -215,10 +230,8 @@ bool wxVListBox::DoSetCurrent(int current) { // it is, indeed, only partly visible, so scroll it into view to // make it entirely visible - if ( (size_t)m_current == GetLastVisibleLine() ) - { - ScrollToLine(m_current); - } + while ( (size_t)m_current == GetLastVisibleLine() && + ScrollToLine(GetVisibleBegin()+1) ); // but in any case refresh it as even if it was only partly visible // before we need to redraw it entirely as its background changed @@ -236,7 +249,7 @@ void wxVListBox::SendSelectedEvent() wxCommandEvent event(wxEVT_COMMAND_LISTBOX_SELECTED, GetId()); event.SetEventObject(this); - event.m_commandInt = m_current; + event.SetInt(m_current); (void)GetEventHandler()->ProcessEvent(event); } @@ -247,8 +260,11 @@ void wxVListBox::SetSelection(int selection) (selection >= 0 && (size_t)selection < GetItemCount()), _T("wxVListBox::SetSelection(): invalid item index") ); - wxASSERT_MSG( !HasMultipleSelection(), - _T("SetSelection() is invalid with multiselection listbox") ); + if ( HasMultipleSelection() ) + { + Select(selection); + m_anchor = selection; + } DoSetCurrent(selection); } @@ -281,7 +297,7 @@ int wxVListBox::GetNextSelected(unsigned long& cookie) const } // ---------------------------------------------------------------------------- -// wxVListBox painting +// wxVListBox appearance parameters // ---------------------------------------------------------------------------- void wxVListBox::SetMargins(const wxPoint& pt) @@ -294,6 +310,15 @@ void wxVListBox::SetMargins(const wxPoint& pt) } } +void wxVListBox::SetSelectionBackground(const wxColour& col) +{ + m_colBgSel = col; +} + +// ---------------------------------------------------------------------------- +// wxVListBox painting +// ---------------------------------------------------------------------------- + wxCoord wxVListBox::OnGetLineHeight(size_t line) const { return OnMeasureItem(line) + 2*m_ptMargins.y; @@ -305,16 +330,54 @@ void wxVListBox::OnDrawSeparator(wxDC& WXUNUSED(dc), { } -void wxVListBox::OnPaint(wxPaintEvent& event) +void wxVListBox::OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const { - wxPaintDC dc(this); + // we need to render selected and current items differently + const bool isSelected = IsSelected(n), + isCurrent = IsCurrent(n); + if ( isSelected || isCurrent ) + { + if ( isSelected ) + { + dc.SetBrush(wxBrush(m_colBgSel, wxSOLID)); + } + else // !selected + { + dc.SetBrush(*wxTRANSPARENT_BRUSH); + } + + dc.SetPen(*(isCurrent ? wxBLACK_PEN : wxTRANSPARENT_PEN)); + + dc.DrawRectangle(rect); + } + //else: do nothing for the normal items +} + +void wxVListBox::OnPaint(wxPaintEvent& WXUNUSED(event)) +{ + // If size is larger, recalculate double buffer bitmap + wxSize clientSize = GetClientSize(); + + if ( !m_doubleBuffer || + clientSize.x > m_doubleBuffer->GetWidth() || + clientSize.y > m_doubleBuffer->GetHeight() ) + { + delete m_doubleBuffer; + m_doubleBuffer = new wxBitmap(clientSize.x+25,clientSize.y+25); + } + + wxBufferedPaintDC dc(this,*m_doubleBuffer); // the update rectangle wxRect rectUpdate = GetUpdateClientRect(); + // Fill it with background colour + dc.SetBrush(GetBackgroundColour()); + dc.Clear(); + // the bounding rectangle of the current line wxRect rectLine; - rectLine.width = GetClientSize().x; + rectLine.width = clientSize.x; // iterate over all visible lines const size_t lineMax = GetLastVisibleLine(); @@ -330,28 +393,9 @@ void wxVListBox::OnPaint(wxPaintEvent& event) // don't allow drawing outside of the lines rectangle wxDCClipper clip(dc, rectLine); - // we need to render selected and current items differently - const bool isSelected = IsSelected(line); - if ( isSelected || IsCurrent(line) ) - { - if ( isSelected ) - { - wxBrush brush(wxSystemSettings:: - GetColour(wxSYS_COLOUR_HIGHLIGHT), - wxSOLID); - dc.SetBrush(brush); - } - else // !selected - { - dc.SetBrush(*wxTRANSPARENT_BRUSH); - } - - dc.SetPen(*(IsCurrent(line) ? wxBLACK_PEN : wxTRANSPARENT_PEN)); - - dc.DrawRectangle(rectLine); - } - wxRect rect = rectLine; + OnDrawBackground(dc, rect, line); + OnDrawSeparator(dc, rect, line); rect.Deflate(m_ptMargins.x, m_ptMargins.y); @@ -376,7 +420,7 @@ void wxVListBox::OnPaint(wxPaintEvent& event) // wxVListBox keyboard/mouse handling // ============================================================================ -void wxVListBox::DoHandleItemClick(int item, bool shiftDown, bool ctrlDown) +void wxVListBox::DoHandleItemClick(int item, int flags) { // has anything worth telling the client code about happened? bool notify = false; @@ -389,32 +433,44 @@ void wxVListBox::DoHandleItemClick(int item, bool shiftDown, bool ctrlDown) // NB: the keyboard interface we implement here corresponds to // wxLB_EXTENDED rather than wxLB_MULTIPLE but this one makes more // sense IMHO - if ( shiftDown ) + if ( flags & ItemClick_Shift ) { if ( m_current != wxNOT_FOUND ) { + if ( m_anchor == wxNOT_FOUND ) + m_anchor = m_current; + select = false; - // only the range from old m_current to new m_current must be - // selected + // only the range from the selection anchor to new m_current + // must be selected if ( DeselectAll() ) notify = true; - if ( SelectRange(m_current, item) ) + if ( SelectRange(m_anchor, item) ) notify = true; } //else: treat it as ordinary click/keypress } - else if ( ctrlDown ) + else // Shift not pressed { - select = false; + m_anchor = item; - Toggle(item); + if ( flags & ItemClick_Ctrl ) + { + select = false; - // the status of the item has definitely changed - notify = true; + if ( !(flags & ItemClick_Kbd) ) + { + Toggle(item); + + // the status of the item has definitely changed + notify = true; + } + //else: Ctrl-arrow pressed, don't change selection + } + //else: behave as in single selection case } - //else: behave as in single selection case if ( select ) { @@ -451,7 +507,10 @@ void wxVListBox::DoHandleItemClick(int item, bool shiftDown, bool ctrlDown) void wxVListBox::OnKeyDown(wxKeyEvent& event) { - int current = 0; // just to silent the stupid compiler warnings + // flags for DoHandleItemClick() + int flags = ItemClick_Kbd; + + int current; switch ( event.GetKeyCode() ) { case WXK_HOME: @@ -494,12 +553,40 @@ void wxVListBox::OnKeyDown(wxKeyEvent& event) current = GetFirstVisibleLine(); break; + case WXK_SPACE: + // hack: pressing space should work like a mouse click rather than + // like a keyboard arrow press, so trick DoHandleItemClick() in + // thinking we were clicked + flags &= ~ItemClick_Kbd; + current = m_current; + break; + +#ifdef __WXMSW__ + case WXK_TAB: + // Since we are using wxWANTS_CHARS we need to send navigation + // events for the tabs on MSW + { + wxNavigationKeyEvent ne; + ne.SetDirection(!event.ShiftDown()); + ne.SetCurrentFocus(this); + ne.SetEventObject(this); + GetParent()->GetEventHandler()->ProcessEvent(ne); + } + // fall through to default +#endif default: event.Skip(); + current = 0; // just to silent the stupid compiler warnings + wxUnusedVar(current); return; } - DoHandleItemClick(current, event.ShiftDown(), event.ControlDown()); + if ( event.ShiftDown() ) + flags |= ItemClick_Shift; + if ( event.ControlDown() ) + flags |= ItemClick_Ctrl; + + DoHandleItemClick(current, flags); } // ---------------------------------------------------------------------------- @@ -508,32 +595,65 @@ void wxVListBox::OnKeyDown(wxKeyEvent& event) void wxVListBox::OnLeftDown(wxMouseEvent& event) { + SetFocus(); + int item = HitTest(event.GetPosition()); if ( item != wxNOT_FOUND ) { + int flags = 0; + if ( event.ShiftDown() ) + flags |= ItemClick_Shift; + // under Mac Apple-click is used in the same way as Ctrl-click // elsewhere - DoHandleItemClick(item, event.ShiftDown(), #ifdef __WXMAC__ - event.MetaDown() + if ( event.MetaDown() ) #else - event.ControlDown() + if ( event.ControlDown() ) #endif - ); + flags |= ItemClick_Ctrl; + + DoHandleItemClick(item, flags); } } -void wxVListBox::OnLeftDClick(wxMouseEvent& event) +void wxVListBox::OnLeftDClick(wxMouseEvent& eventMouse) { - int item = HitTest(event.GetPosition()); + int item = HitTest(eventMouse.GetPosition()); if ( item != wxNOT_FOUND ) { - wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, GetId()); - event.SetEventObject(this); - event.m_commandInt = item; - (void)GetEventHandler()->ProcessEvent(event); + // if item double-clicked was not yet selected, then treat + // this event as a left-click instead + if ( item == m_current ) + { + wxCommandEvent event(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED, GetId()); + event.SetEventObject(this); + event.SetInt(item); + + (void)GetEventHandler()->ProcessEvent(event); + } + else + { + OnLeftDown(eventMouse); + } + } } + +// ---------------------------------------------------------------------------- +// use the same default attributes as wxListBox +// ---------------------------------------------------------------------------- + +#include "wx/listbox.h" + +//static +wxVisualAttributes +wxVListBox::GetClassDefaultAttributes(wxWindowVariant variant) +{ + return wxListBox::GetClassDefaultAttributes(variant); +} + +#endif