X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f30e67dbea3b6476ce25b593285fdaec128f8fd1..e7262344d087273860d409d68ef763f2c37cd5e0:/src/html/htmlwin.cpp diff --git a/src/html/htmlwin.cpp b/src/html/htmlwin.cpp index f4e541e312..1678191f62 100644 --- a/src/html/htmlwin.cpp +++ b/src/html/htmlwin.cpp @@ -33,10 +33,87 @@ #include "wx/html/htmlproc.h" #include "wx/list.h" #include "wx/clipbrd.h" +#include "wx/dataobj.h" +#include "wx/timer.h" +#include "wx/dcmemory.h" #include "wx/arrimpl.cpp" #include "wx/listimpl.cpp" + + +#if wxUSE_CLIPBOARD +// ---------------------------------------------------------------------------- +// wxHtmlWinAutoScrollTimer: the timer used to generate a stream of scroll +// events when a captured mouse is held outside the window +// ---------------------------------------------------------------------------- + +class wxHtmlWinAutoScrollTimer : public wxTimer +{ +public: + wxHtmlWinAutoScrollTimer(wxScrolledWindow *win, + wxEventType eventTypeToSend, + int pos, int orient) + { + m_win = win; + m_eventType = eventTypeToSend; + m_pos = pos; + m_orient = orient; + } + + virtual void Notify(); + +private: + wxScrolledWindow *m_win; + wxEventType m_eventType; + int m_pos, + m_orient; + + DECLARE_NO_COPY_CLASS(wxHtmlWinAutoScrollTimer) +}; + +void wxHtmlWinAutoScrollTimer::Notify() +{ + // only do all this as long as the window is capturing the mouse + if ( wxWindow::GetCapture() != m_win ) + { + Stop(); + } + else // we still capture the mouse, continue generating events + { + // first scroll the window if we are allowed to do it + wxScrollWinEvent event1(m_eventType, m_pos, m_orient); + event1.SetEventObject(m_win); + if ( m_win->GetEventHandler()->ProcessEvent(event1) ) + { + // and then send a pseudo mouse-move event to refresh the selection + wxMouseEvent event2(wxEVT_MOTION); + wxGetMousePosition(&event2.m_x, &event2.m_y); + + // the mouse event coordinates should be client, not screen as + // returned by wxGetMousePosition + wxWindow *parentTop = m_win; + while ( parentTop->GetParent() ) + parentTop = parentTop->GetParent(); + wxPoint ptOrig = parentTop->GetPosition(); + event2.m_x -= ptOrig.x; + event2.m_y -= ptOrig.y; + + event2.SetEventObject(m_win); + + // FIXME: we don't fill in the other members - ok? + m_win->GetEventHandler()->ProcessEvent(event2); + } + else // can't scroll further, stop + { + Stop(); + } + } +} +#endif + + + //----------------------------------------------------------------------------- // wxHtmlHistoryItem //----------------------------------------------------------------------------- @@ -95,6 +172,11 @@ void wxHtmlWindow::Init() SetBorders(10); m_selection = NULL; m_makingSelection = false; +#if wxUSE_CLIPBOARD + m_timerAutoScroll = NULL; + m_lastDoubleClick = 0; +#endif + m_backBuffer = NULL; } bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id, @@ -113,6 +195,9 @@ bool wxHtmlWindow::Create(wxWindow *parent, wxWindowID id, wxHtmlWindow::~wxHtmlWindow() { +#if wxUSE_CLIPBOARD + StopAutoScrolling(); +#endif HistoryClear(); if (m_Cell) delete m_Cell; @@ -121,6 +206,7 @@ wxHtmlWindow::~wxHtmlWindow() delete m_FS; delete m_History; delete m_Processors; + delete m_backBuffer; } @@ -605,8 +691,6 @@ void wxHtmlWindow::AddProcessor(wxHtmlProcessor *processor) wxList wxHtmlWindow::m_Filters; wxHtmlFilter *wxHtmlWindow::m_DefaultFilter = NULL; -wxCursor *wxHtmlWindow::s_cur_hand = NULL; -wxCursor *wxHtmlWindow::s_cur_arrow = NULL; wxHtmlProcessorList *wxHtmlWindow::m_GlobalProcessors = NULL; void wxHtmlWindow::CleanUpStatics() @@ -615,8 +699,6 @@ void wxHtmlWindow::CleanUpStatics() m_Filters.DeleteContents(TRUE); m_Filters.Clear(); wxDELETE(m_GlobalProcessors); - wxDELETE(s_cur_hand); - wxDELETE(s_cur_arrow); } @@ -637,6 +719,7 @@ bool wxHtmlWindow::IsSelectionEnabled() const } +#if wxUSE_CLIPBOARD wxString wxHtmlWindow::SelectionToText() { if ( !m_selection ) @@ -666,7 +749,6 @@ wxString wxHtmlWindow::SelectionToText() void wxHtmlWindow::CopySelection(ClipboardType t) { -#if wxUSE_CLIPBOARD if ( m_selection ) { wxTheClipboard->UsePrimarySelection(t == Primary); @@ -679,8 +761,8 @@ void wxHtmlWindow::CopySelection(ClipboardType t) _("Copied to clipboard:\"%s\""), txt.c_str()); } } -#endif } +#endif void wxHtmlWindow::OnLinkClicked(const wxHtmlLinkInfo& link) @@ -705,25 +787,45 @@ void wxHtmlWindow::OnCellMouseHover(wxHtmlCell * WXUNUSED(cell), // do nothing here } -void wxHtmlWindow::OnDraw(wxDC& dc) +void wxHtmlWindow::OnEraseBackground(wxEraseEvent& event) { +} + +void wxHtmlWindow::OnPaint(wxPaintEvent& WXUNUSED(event)) +{ + wxPaintDC dc(this); + if (m_tmpCanDrawLocks > 0 || m_Cell == NULL) return; int x, y; - wxRect rect = GetUpdateRegion().GetBox(); - - dc.SetMapMode(wxMM_TEXT); - dc.SetBackgroundMode(wxTRANSPARENT); GetViewStart(&x, &y); - + wxRect rect = GetUpdateRegion().GetBox(); + wxSize sz = GetSize(); + + wxMemoryDC dcm; + if ( !m_backBuffer ) + m_backBuffer = new wxBitmap(sz.x, sz.y); + dcm.SelectObject(*m_backBuffer); + dcm.SetBackground(wxBrush(GetBackgroundColour(), wxSOLID)); + dcm.Clear(); + PrepareDC(dcm); + dcm.SetMapMode(wxMM_TEXT); + dcm.SetBackgroundMode(wxTRANSPARENT); + wxHtmlRenderingInfo rinfo; wxDefaultHtmlRenderingStyle rstyle; rinfo.SetSelection(m_selection); rinfo.SetStyle(&rstyle); - m_Cell->Draw(dc, 0, 0, + m_Cell->Draw(dcm, 0, 0, y * wxHTML_SCROLL_STEP + rect.GetTop(), y * wxHTML_SCROLL_STEP + rect.GetBottom(), rinfo); + + dcm.SetDeviceOrigin(0,0); + dc.Blit(0, rect.GetTop(), + sz.x, rect.GetBottom() - rect.GetTop() + 1, + &dcm, + 0, rect.GetTop()); } @@ -731,8 +833,19 @@ void wxHtmlWindow::OnDraw(wxDC& dc) void wxHtmlWindow::OnSize(wxSizeEvent& event) { + wxDELETE(m_backBuffer); + wxScrolledWindow::OnSize(event); CreateLayout(); + + // Recompute selection if necessary: + if ( m_selection ) + { + m_selection->Set(m_selection->GetFromCell(), + m_selection->GetToCell()); + m_selection->ClearPrivPos(); + } + Refresh(); } @@ -744,24 +857,35 @@ void wxHtmlWindow::OnMouseMove(wxMouseEvent& event) void wxHtmlWindow::OnMouseDown(wxMouseEvent& event) { +#if wxUSE_CLIPBOARD if ( event.LeftDown() && IsSelectionEnabled() ) { - m_makingSelection = true; - - if ( m_selection ) + const long TRIPLECLICK_LEN = 200; // 0.2 sec after doubleclick + if ( wxGetLocalTimeMillis() - m_lastDoubleClick <= TRIPLECLICK_LEN ) { - wxDELETE(m_selection); - Refresh(); + SelectLine(CalcUnscrolledPosition(event.GetPosition())); } - m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition()); - m_tmpSelFromCell = NULL; + else + { + m_makingSelection = true; + + if ( m_selection ) + { + wxDELETE(m_selection); + Refresh(); + } + m_tmpSelFromPos = CalcUnscrolledPosition(event.GetPosition()); + m_tmpSelFromCell = NULL; - CaptureMouse(); + CaptureMouse(); + } } +#endif } void wxHtmlWindow::OnMouseUp(wxMouseEvent& event) { +#if wxUSE_CLIPBOARD if ( m_makingSelection ) { ReleaseMouse(); @@ -778,6 +902,7 @@ void wxHtmlWindow::OnMouseUp(wxMouseEvent& event) return; } } +#endif SetFocus(); if ( m_Cell ) @@ -797,12 +922,6 @@ void wxHtmlWindow::OnMouseUp(wxMouseEvent& event) void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event)) { - if (s_cur_hand == NULL) - { - s_cur_hand = new wxCursor(wxCURSOR_HAND); - s_cur_arrow = new wxCursor(wxCURSOR_ARROW); - } - if (m_tmpMouseMoved && (m_Cell != NULL)) { int xc, yc, x, y; @@ -884,14 +1003,8 @@ void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event)) m_selection->Set(wxPoint(x,y), selcell, m_tmpSelFromPos, m_tmpSelFromCell); } - { - wxClientDC dc(this); - m_selection->GetFromCell()->SetSelectionPrivPos( - dc, m_selection); - m_selection->GetToCell()->SetSelectionPrivPos( - dc, m_selection); - } - Refresh(); // FIXME - optimize! + m_selection->ClearPrivPos(); + Refresh(); } } } @@ -900,20 +1013,26 @@ void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event)) if ( cell != m_tmpLastCell ) { wxHtmlLinkInfo *lnk = cell ? cell->GetLink(x, y) : NULL; + wxCursor cur; + if (cell) + cur = cell->GetCursor(); + else + cur = *wxSTANDARD_CURSOR; + SetCursor(cur); if (lnk != m_tmpLastLink) { if (lnk == NULL) { - SetCursor(*s_cur_arrow); if (m_RelatedStatusBar != -1) - m_RelatedFrame->SetStatusText(wxEmptyString, m_RelatedStatusBar); + m_RelatedFrame->SetStatusText(wxEmptyString, + m_RelatedStatusBar); } else { - SetCursor(*s_cur_hand); if (m_RelatedStatusBar != -1) - m_RelatedFrame->SetStatusText(lnk->GetHref(), m_RelatedStatusBar); + m_RelatedFrame->SetStatusText(lnk->GetHref(), + m_RelatedStatusBar); } m_tmpLastLink = lnk; } @@ -931,15 +1050,93 @@ void wxHtmlWindow::OnIdle(wxIdleEvent& WXUNUSED(event)) } #if wxUSE_CLIPBOARD +void wxHtmlWindow::StopAutoScrolling() +{ + if ( m_timerAutoScroll ) + { + wxDELETE(m_timerAutoScroll); + } +} + +void wxHtmlWindow::OnMouseEnter(wxMouseEvent& event) +{ + StopAutoScrolling(); + event.Skip(); +} + +void wxHtmlWindow::OnMouseLeave(wxMouseEvent& event) +{ + // don't prevent the usual processing of the event from taking place + event.Skip(); + + // when a captured mouse leave a scrolled window we start generate + // scrolling events to allow, for example, extending selection beyond the + // visible area in some controls + if ( wxWindow::GetCapture() == this ) + { + // where is the mouse leaving? + int pos, orient; + wxPoint pt = event.GetPosition(); + if ( pt.x < 0 ) + { + orient = wxHORIZONTAL; + pos = 0; + } + else if ( pt.y < 0 ) + { + orient = wxVERTICAL; + pos = 0; + } + else // we're lower or to the right of the window + { + wxSize size = GetClientSize(); + if ( pt.x > size.x ) + { + orient = wxHORIZONTAL; + pos = GetVirtualSize().x / wxHTML_SCROLL_STEP; + } + else if ( pt.y > size.y ) + { + orient = wxVERTICAL; + pos = GetVirtualSize().y / wxHTML_SCROLL_STEP; + } + else // this should be impossible + { + // but seems to happen sometimes under wxMSW - maybe it's a bug + // there but for now just ignore it + + //wxFAIL_MSG( _T("can't understand where has mouse gone") ); + + return; + } + } + + // only start the auto scroll timer if the window can be scrolled in + // this direction + if ( !HasScrollbar(orient) ) + return; + + delete m_timerAutoScroll; + m_timerAutoScroll = new wxHtmlWinAutoScrollTimer + ( + this, + pos == 0 ? wxEVT_SCROLLWIN_LINEUP + : wxEVT_SCROLLWIN_LINEDOWN, + pos, + orient + ); + m_timerAutoScroll->Start(50); // FIXME: make configurable + } +} + void wxHtmlWindow::OnKeyUp(wxKeyEvent& event) { - if ( event.GetKeyCode() == 'C' && event.ControlDown() ) + if ( IsSelectionEnabled() && + event.GetKeyCode() == 'C' && event.ControlDown() ) { if ( m_selection ) CopySelection(); } - else - event.Skip(); } void wxHtmlWindow::OnCopy(wxCommandEvent& event) @@ -947,6 +1144,84 @@ void wxHtmlWindow::OnCopy(wxCommandEvent& event) if ( m_selection ) CopySelection(); } + +void wxHtmlWindow::OnDoubleClick(wxMouseEvent& event) +{ + // select word under cursor: + if ( IsSelectionEnabled() ) + { + SelectWord(CalcUnscrolledPosition(event.GetPosition())); + m_lastDoubleClick = wxGetLocalTimeMillis(); + } + else + event.Skip(); +} + +void wxHtmlWindow::SelectWord(const wxPoint& pos) +{ + wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y); + if ( cell ) + { + delete m_selection; + m_selection = new wxHtmlSelection(); + m_selection->Set(cell, cell); + RefreshRect(wxRect(CalcScrolledPosition(cell->GetAbsPos()), + wxSize(cell->GetWidth(), cell->GetHeight()))); + } +} + +void wxHtmlWindow::SelectLine(const wxPoint& pos) +{ + wxHtmlCell *cell = m_Cell->FindCellByPos(pos.x, pos.y); + if ( cell ) + { + // We use following heuristic to find a "line": let the line be all + // cells in same container as the cell under mouse cursor that are + // neither completely above nor completely bellow the clicked cell + // (i.e. are likely to be words positioned on same line of text). + + int y1 = cell->GetAbsPos().y; + int y2 = y1 + cell->GetHeight(); + int y; + const wxHtmlCell *c; + const wxHtmlCell *before = NULL; + const wxHtmlCell *after = NULL; + + // find last cell of line: + for ( c = cell->GetNext(); c; c = c->GetNext()) + { + y = c->GetAbsPos().y; + if ( y + c->GetHeight() > y1 && y < y2 ) + after = c; + else + break; + } + if ( !after ) + after = cell; + + // find first cell of line: + for ( c = cell->GetParent()->GetFirstChild(); + c && c != cell; c = c->GetNext()) + { + y = c->GetAbsPos().y; + if ( y + c->GetHeight() > y1 && y < y2 ) + { + if ( ! before ) + before = c; + } + else + before = NULL; + } + if ( !before ) + before = cell; + + delete m_selection; + m_selection = new wxHtmlSelection(); + m_selection->Set(before, after); + + Refresh(); + } +} #endif @@ -962,7 +1237,12 @@ BEGIN_EVENT_TABLE(wxHtmlWindow, wxScrolledWindow) EVT_RIGHT_UP(wxHtmlWindow::OnMouseUp) EVT_MOTION(wxHtmlWindow::OnMouseMove) EVT_IDLE(wxHtmlWindow::OnIdle) + EVT_ERASE_BACKGROUND(wxHtmlWindow::OnEraseBackground) + EVT_PAINT(wxHtmlWindow::OnPaint) #if wxUSE_CLIPBOARD + EVT_LEFT_DCLICK(wxHtmlWindow::OnDoubleClick) + EVT_ENTER_WINDOW(wxHtmlWindow::OnMouseEnter) + EVT_LEAVE_WINDOW(wxHtmlWindow::OnMouseLeave) EVT_KEY_UP(wxHtmlWindow::OnKeyUp) EVT_MENU(wxID_COPY, wxHtmlWindow::OnCopy) #endif