X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e24529d70d6e541e3587ce8b2b93d429b9f69942..0c2f35dc94a4ae971cd2ed2a0c7464dc79cbc731:/src/html/htmlcell.cpp diff --git a/src/html/htmlcell.cpp b/src/html/htmlcell.cpp index 1e86ed4112..665db26ff2 100644 --- a/src/html/htmlcell.cpp +++ b/src/html/htmlcell.cpp @@ -30,14 +30,24 @@ #include "wx/html/htmlcell.h" #include "wx/html/htmlwin.h" #include "wx/settings.h" +#include "wx/module.h" + #include +//----------------------------------------------------------------------------- +// Global variables +//----------------------------------------------------------------------------- + +static wxCursor *gs_cursorLink = NULL; +static wxCursor *gs_cursorText = NULL; + + //----------------------------------------------------------------------------- // Helper classes //----------------------------------------------------------------------------- -void wxHtmlSelection::Set(const wxPoint& fromPos, wxHtmlCell *fromCell, - const wxPoint& toPos, wxHtmlCell *toCell) +void wxHtmlSelection::Set(const wxPoint& fromPos, const wxHtmlCell *fromCell, + const wxPoint& toPos, const wxHtmlCell *toCell) { m_fromCell = fromCell; m_toCell = toCell; @@ -45,7 +55,7 @@ void wxHtmlSelection::Set(const wxPoint& fromPos, wxHtmlCell *fromCell, m_toPos = toPos; } -void wxHtmlSelection::Set(wxHtmlCell *fromCell, wxHtmlCell *toCell) +void wxHtmlSelection::Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell) { wxPoint p1 = fromCell ? fromCell->GetAbsPos() : wxDefaultPosition; wxPoint p2 = toCell ? toCell->GetAbsPos() : wxDefaultPosition; @@ -57,6 +67,19 @@ void wxHtmlSelection::Set(wxHtmlCell *fromCell, wxHtmlCell *toCell) Set(p1, fromCell, p2, toCell); } +wxColour wxDefaultHtmlRenderingStyle::GetSelectedTextColour( + const wxColour& clr) +{ + return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT); +} + +wxColour wxDefaultHtmlRenderingStyle::GetSelectedTextBgColour( + const wxColour& WXUNUSED(clr)) +{ + return wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT); +} + + //----------------------------------------------------------------------------- // wxHtmlCell //----------------------------------------------------------------------------- @@ -92,6 +115,18 @@ void wxHtmlCell::OnMouseClick(wxWindow *parent, int x, int y, } +wxCursor wxHtmlCell::GetCursor() const +{ + if ( GetLink() ) + { + if ( !gs_cursorLink ) + gs_cursorLink = new wxCursor(wxCURSOR_HAND); + return *gs_cursorLink; + } + else + return *wxSTANDARD_CURSOR; +} + bool wxHtmlCell::AdjustPagebreak(int *pagebreak, int* WXUNUSED(known_pagebreaks), int WXUNUSED(number_of_pages)) const { @@ -116,7 +151,6 @@ void wxHtmlCell::SetLink(const wxHtmlLinkInfo& link) } - void wxHtmlCell::Layout(int WXUNUSED(w)) { SetPos(0, 0); @@ -171,7 +205,7 @@ wxPoint wxHtmlCell::GetAbsPos() const } return p; } - + unsigned wxHtmlCell::GetDepth() const { unsigned d = 0; @@ -179,7 +213,7 @@ unsigned wxHtmlCell::GetDepth() const d++; return d; } - + bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const { const wxHtmlCell *c1 = this; @@ -206,7 +240,7 @@ bool wxHtmlCell::IsBefore(wxHtmlCell *cell) const if ( c1 == c2 ) return true; c1 = c1->GetNext(); - } + } return false; } else @@ -233,39 +267,210 @@ wxHtmlWordCell::wxHtmlWordCell(const wxString& word, wxDC& dc) : wxHtmlCell() } +// Splits m_Word into up to three parts according to selection, returns +// substring before, in and after selection and the points (in relative coords) +// where s2 and s3 start: +void wxHtmlWordCell::Split(wxDC& dc, + const wxPoint& selFrom, const wxPoint& selTo, + unsigned& pos1, unsigned& pos2) const +{ + wxPoint pt1 = (selFrom == wxDefaultPosition) ? + wxDefaultPosition : selFrom - GetAbsPos(); + wxPoint pt2 = (selTo == wxDefaultPosition) ? + wxPoint(m_Width, -1) : selTo - GetAbsPos(); + + wxCoord charW, charH; + unsigned len = m_Word.length(); + unsigned i = 0; + pos1 = 0; + + // before selection: + while ( pt1.x > 0 && i < len ) + { + dc.GetTextExtent(m_Word[i], &charW, &charH); + pt1.x -= charW; + if ( pt1.x >= 0 ) + { + pos1 += charW; + i++; + } + } + + // in selection: + unsigned j = i; + pos2 = pos1; + pt2.x -= pos2; + while ( pt2.x > 0 && j < len ) + { + dc.GetTextExtent(m_Word[j], &charW, &charH); + pt2.x -= charW; + if ( pt2.x >= 0 ) + { + pos2 += charW; + j++; + } + } + + pos1 = i; + pos2 = j; +} + +void wxHtmlWordCell::SetSelectionPrivPos(wxDC& dc, wxHtmlSelection *s) const +{ + unsigned p1, p2; + + Split(dc, + this == s->GetFromCell() ? s->GetFromPos() : wxDefaultPosition, + this == s->GetToCell() ? s->GetToPos() : wxDefaultPosition, + p1, p2); -void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, - int WXUNUSED(view_y1), int WXUNUSED(view_y2), - wxHtmlRenderingState& state) + wxPoint p(0, m_Word.length()); + + if ( this == s->GetFromCell() ) + p.x = p1; // selection starts here + if ( this == s->GetToCell() ) + p.y = p2; // selection ends here + + if ( this == s->GetFromCell() ) + s->SetFromPrivPos(p); + if ( this == s->GetToCell() ) + s->SetToPrivPos(p); +} + + +static void SwitchSelState(wxDC& dc, wxHtmlRenderingInfo& info, + bool toSelection) { - if (state.GetSelectionState() != wxHTML_SEL_OUT && - dc.GetBackgroundMode() != wxSOLID) + wxColour fg = info.GetState().GetFgColour(); + wxColour bg = info.GetState().GetBgColour(); + + if ( toSelection ) { dc.SetBackgroundMode(wxSOLID); - dc.SetTextBackground( - wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT)); - dc.SetTextForeground( - wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT)); + dc.SetTextForeground(info.GetStyle().GetSelectedTextColour(fg)); + dc.SetTextBackground(info.GetStyle().GetSelectedTextBgColour(bg)); } - else if (state.GetSelectionState() == wxHTML_SEL_OUT && - dc.GetBackgroundMode() == wxSOLID) + else { dc.SetBackgroundMode(wxTRANSPARENT); - dc.SetTextForeground(state.GetFgColour()); - dc.SetTextBackground(state.GetBgColour()); + dc.SetTextForeground(fg); + dc.SetTextBackground(bg); + } +} + + +void wxHtmlWordCell::Draw(wxDC& dc, int x, int y, + int WXUNUSED(view_y1), int WXUNUSED(view_y2), + wxHtmlRenderingInfo& info) +{ +#if 0 // useful for debugging + dc.DrawRectangle(x+m_PosX,y+m_PosY,m_Width,m_Height); +#endif + + if ( info.GetState().GetSelectionState() == wxHTML_SEL_CHANGING ) + { + // Selection changing, we must draw the word piecewise: + wxHtmlSelection *s = info.GetSelection(); + wxString txt; + int w, h; + int ofs = 0; + + wxPoint priv = (this == s->GetFromCell()) ? + s->GetFromPrivPos() : s->GetToPrivPos(); + + // NB: this is quite a hack: in order to compute selection boundaries + // (in word's characters) we must know current font, which is only + // possible inside rendering code. Therefore we update the + // information here and store it in wxHtmlSelection so that + // ConvertToText can use it later: + if ( priv == wxDefaultPosition ) + { + SetSelectionPrivPos(dc, s); + priv = (this == s->GetFromCell()) ? + s->GetFromPrivPos() : s->GetToPrivPos(); + } + + int part1 = priv.x; + int part2 = priv.y; + + if ( part1 > 0 ) + { + txt = m_Word.Mid(0, part1); + dc.DrawText(txt, x + m_PosX, y + m_PosY); + dc.GetTextExtent(txt, &w, &h); + ofs += w; + } + + SwitchSelState(dc, info, true); + + txt = m_Word.Mid(part1, part2-part1); + dc.DrawText(txt, ofs + x + m_PosX, y + m_PosY); + + if ( (size_t)part2 < m_Word.length() ) + { + dc.GetTextExtent(txt, &w, &h); + ofs += w; + SwitchSelState(dc, info, false); + txt = m_Word.Mid(part2); + dc.DrawText(txt, ofs + x + m_PosX, y + m_PosY); + } } + else + { + // Not changing selection state, draw the word in single mode: - // FIXME - use selection - dc.DrawText(m_Word, x + m_PosX, y + m_PosY); + if ( info.GetState().GetSelectionState() != wxHTML_SEL_OUT && + dc.GetBackgroundMode() != wxSOLID ) + { + SwitchSelState(dc, info, true); + } + else if ( info.GetState().GetSelectionState() == wxHTML_SEL_OUT && + dc.GetBackgroundMode() == wxSOLID ) + { + SwitchSelState(dc, info, false); + } + dc.DrawText(m_Word, x + m_PosX, y + m_PosY); + } } - -wxString wxHtmlWordCell::ConvertToText(wxHtmlSelection *sel) const + +wxString wxHtmlWordCell::ConvertToText(wxHtmlSelection *s) const { - // FIXME - use selection + if ( s && (this == s->GetFromCell() || this == s->GetToCell()) ) + { + wxPoint priv = this == s->GetFromCell() ? s->GetFromPrivPos() + : s->GetToPrivPos(); + + // VZ: we may be called before we had a chance to re-render ourselves + // and in this case GetFrom/ToPrivPos() is not set yet -- assume + // that this only happens in case of a double/triple click (which + // seems to be the case now) and so it makes sense to select the + // entire contents of the cell in this case + // + // TODO: but this really needs to be fixed in some better way later... + if ( priv != wxDefaultPosition ) + { + int part1 = priv.x; + int part2 = priv.y; + return m_Word.Mid(part1, part2-part1); + } + //else: return the whole word below + } + return m_Word; } +wxCursor wxHtmlWordCell::GetCursor() const +{ + if ( !GetLink() ) + { + if ( !gs_cursorText ) + gs_cursorText = new wxCursor(wxCURSOR_IBEAM); + return *gs_cursorText; + } + else + return wxHtmlCell::GetCursor(); +} //----------------------------------------------------------------------------- @@ -525,33 +730,33 @@ void wxHtmlContainerCell::Layout(int w) m_LastLayout = w; } -void wxHtmlContainerCell::UpdateRenderingStatePre(wxHtmlRenderingState& state, +void wxHtmlContainerCell::UpdateRenderingStatePre(wxHtmlRenderingInfo& info, wxHtmlCell *cell) const { - wxHtmlSelection *s = state.GetSelection(); + wxHtmlSelection *s = info.GetSelection(); if (!s) return; if (s->GetFromCell() == cell || s->GetToCell() == cell) { - state.SetSelectionState(wxHTML_SEL_CHANGING); + info.GetState().SetSelectionState(wxHTML_SEL_CHANGING); } } -void wxHtmlContainerCell::UpdateRenderingStatePost(wxHtmlRenderingState& state, +void wxHtmlContainerCell::UpdateRenderingStatePost(wxHtmlRenderingInfo& info, wxHtmlCell *cell) const { - wxHtmlSelection *s = state.GetSelection(); + wxHtmlSelection *s = info.GetSelection(); if (!s) return; if (s->GetToCell() == cell) - state.SetSelectionState(wxHTML_SEL_OUT); + info.GetState().SetSelectionState(wxHTML_SEL_OUT); else if (s->GetFromCell() == cell) - state.SetSelectionState(wxHTML_SEL_IN); + info.GetState().SetSelectionState(wxHTML_SEL_IN); } #define mMin(a, b) (((a) < (b)) ? (a) : (b)) #define mMax(a, b) (((a) < (b)) ? (b) : (a)) void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, - wxHtmlRenderingState& state) + wxHtmlRenderingInfo& info) { // container visible, draw it: if ((y + m_PosY <= view_y2) && (y + m_PosY + m_Height > view_y1)) @@ -586,33 +791,33 @@ void wxHtmlContainerCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, // draw container's contents: for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext()) { - UpdateRenderingStatePre(state, cell); + UpdateRenderingStatePre(info, cell); cell->Draw(dc, x + m_PosX, y + m_PosY, view_y1, view_y2, - state); - UpdateRenderingStatePost(state, cell); + info); + UpdateRenderingStatePost(info, cell); } } } // container invisible, just proceed font+color changing: else { - DrawInvisible(dc, x, y, state); + DrawInvisible(dc, x, y, info); } } void wxHtmlContainerCell::DrawInvisible(wxDC& dc, int x, int y, - wxHtmlRenderingState& state) + wxHtmlRenderingInfo& info) { if (m_Cells) { for (wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext()) { - UpdateRenderingStatePre(state, cell); - cell->DrawInvisible(dc, x + m_PosX, y + m_PosY, state); - UpdateRenderingStatePost(state, cell); + UpdateRenderingStatePre(info, cell); + cell->DrawInvisible(dc, x + m_PosX, y + m_PosY, info); + UpdateRenderingStatePost(info, cell); } } } @@ -750,7 +955,7 @@ wxHtmlCell *wxHtmlContainerCell::FindCellByPos(wxCoord x, wxCoord y, wxHtmlCell *c2, *c = NULL; for ( const wxHtmlCell *cell = m_Cells; cell; cell = cell->GetNext() ) { - if (cell->GetPosY() > y || + if (cell->GetPosY() > y || (cell->GetPosY() == y && cell->GetPosX() > x)) break; c2 = cell->FindCellByPos(x - cell->GetPosX(), y - cell->GetPosY(), @@ -797,7 +1002,7 @@ void wxHtmlContainerCell::GetHorizontalConstraints(int *left, int *right) const *right = cright; } - + wxHtmlCell *wxHtmlContainerCell::GetFirstTerminal() const { if ( m_Cells ) @@ -841,26 +1046,33 @@ wxHtmlCell *wxHtmlContainerCell::GetLastTerminal() const void wxHtmlColourCell::Draw(wxDC& dc, int x, int y, int WXUNUSED(view_y1), int WXUNUSED(view_y2), - wxHtmlRenderingState& state) + wxHtmlRenderingInfo& info) { - DrawInvisible(dc, x, y, state); + DrawInvisible(dc, x, y, info); } void wxHtmlColourCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y), - wxHtmlRenderingState& state) + wxHtmlRenderingInfo& info) { + wxHtmlRenderingState& state = info.GetState(); if (m_Flags & wxHTML_CLR_FOREGROUND) { state.SetFgColour(m_Colour); if (state.GetSelectionState() != wxHTML_SEL_IN) - dc.SetTextForeground(m_Colour); + dc.SetTextForeground(m_Colour); + else + dc.SetTextForeground( + info.GetStyle().GetSelectedTextColour(m_Colour)); } if (m_Flags & wxHTML_CLR_BACKGROUND) { state.SetBgColour(m_Colour); if (state.GetSelectionState() != wxHTML_SEL_IN) dc.SetTextBackground(m_Colour); + else + dc.SetTextBackground( + info.GetStyle().GetSelectedTextBgColour(m_Colour)); dc.SetBackground(wxBrush(m_Colour, wxSOLID)); } } @@ -875,13 +1087,13 @@ void wxHtmlColourCell::DrawInvisible(wxDC& dc, void wxHtmlFontCell::Draw(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(view_y1), int WXUNUSED(view_y2), - wxHtmlRenderingState& WXUNUSED(state)) + wxHtmlRenderingInfo& WXUNUSED(info)) { dc.SetFont(m_Font); } void wxHtmlFontCell::DrawInvisible(wxDC& dc, int WXUNUSED(x), int WXUNUSED(y), - wxHtmlRenderingState& WXUNUSED(state)) + wxHtmlRenderingInfo& WXUNUSED(info)) { dc.SetFont(m_Font); } @@ -910,7 +1122,7 @@ wxHtmlWidgetCell::wxHtmlWidgetCell(wxWindow *wnd, int w) void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc), int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(view_y1), int WXUNUSED(view_y2), - wxHtmlRenderingState& WXUNUSED(state)) + wxHtmlRenderingInfo& WXUNUSED(info)) { int absx = 0, absy = 0, stx, sty; wxHtmlCell *c = this; @@ -930,7 +1142,7 @@ void wxHtmlWidgetCell::Draw(wxDC& WXUNUSED(dc), void wxHtmlWidgetCell::DrawInvisible(wxDC& WXUNUSED(dc), int WXUNUSED(x), int WXUNUSED(y), - wxHtmlRenderingState& WXUNUSED(state)) + wxHtmlRenderingInfo& WXUNUSED(info)) { int absx = 0, absy = 0, stx, sty; wxHtmlCell *c = this; @@ -995,8 +1207,33 @@ const wxHtmlCell* wxHtmlTerminalCellsInterator::operator++() while ( m_pos->GetFirstChild() != NULL ) m_pos = m_pos->GetFirstChild(); } while ( !m_pos->IsTerminalCell() ); - + return m_pos; } + + + + + + +//----------------------------------------------------------------------------- +// Cleanup +//----------------------------------------------------------------------------- + +class wxHtmlCellModule: public wxModule +{ +DECLARE_DYNAMIC_CLASS(wxHtmlCellModule) +public: + wxHtmlCellModule() : wxModule() {} + bool OnInit() { return true; } + void OnExit() + { + wxDELETE(gs_cursorLink); + wxDELETE(gs_cursorText); + } +}; + +IMPLEMENT_DYNAMIC_CLASS(wxHtmlCellModule, wxModule) + #endif