X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0a53b9b8fe6fc88f243f777db03bafa3a9651701..12bb29f5432174ecbd65549bda832d70d34a98ae:/src/generic/htmllbox.cpp diff --git a/src/generic/htmllbox.cpp b/src/generic/htmllbox.cpp index 5cc120f75c..af7666efe3 100644 --- a/src/generic/htmllbox.cpp +++ b/src/generic/htmllbox.cpp @@ -1,12 +1,12 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: generic/htmllbox.cpp +// Name: src/generic/htmllbox.cpp // Purpose: implementation of wxHtmlListBox // Author: Vadim Zeitlin // Modified by: // Created: 31.05.03 // RCS-ID: $Id$ // Copyright: (c) 2003 Vadim Zeitlin -// License: wxWindows license +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -39,6 +39,16 @@ #include "wx/html/forcelnk.h" FORCE_WXHTML_MODULES() +// ---------------------------------------------------------------------------- +// constants +// ---------------------------------------------------------------------------- + +// small border always added to the cells: +static const wxCoord CELL_BORDER = 2; + +const char wxHtmlListBoxNameStr[] = "htmlListBox"; +const char wxSimpleHtmlListBoxNameStr[] = "simpleHtmlListBox"; + // ============================================================================ // private classes // ============================================================================ @@ -51,6 +61,14 @@ FORCE_WXHTML_MODULES() // the items to avoid doing it anew each time an item must be drawn class wxHtmlListBoxCache { +private: + // invalidate a single item, used by Clear() and InvalidateRange() + void InvalidateItem(size_t n) + { + m_items[n] = (size_t)-1; + wxDELETE(m_cells[n]); + } + public: wxHtmlListBoxCache() { @@ -76,9 +94,7 @@ public: { for ( size_t n = 0; n < SIZE; n++ ) { - m_items[n] = (size_t)-1; - delete m_cells[n]; - m_cells[n] = NULL; + InvalidateItem(n); } } @@ -109,6 +125,18 @@ public: m_next = 0; } + // forget the cached value of the item(s) between the given ones (inclusive) + void InvalidateRange(size_t from, size_t to) + { + for ( size_t n = 0; n < SIZE; n++ ) + { + if ( m_items[n] >= from && m_items[n] <= to ) + { + InvalidateItem(n); + } + } + } + private: // the max number of the items we cache enum { SIZE = 50 }; @@ -132,31 +160,47 @@ private: class wxHtmlListBoxStyle : public wxDefaultHtmlRenderingStyle { public: - wxHtmlListBoxStyle(wxHtmlListBox& hlbox) : m_hlbox(hlbox) { } + wxHtmlListBoxStyle(const wxHtmlListBox& hlbox) : m_hlbox(hlbox) { } virtual wxColour GetSelectedTextColour(const wxColour& colFg) { - return m_hlbox.GetSelectedTextColour(colFg); + // by default wxHtmlListBox doesn't implement GetSelectedTextColour() + // and returns wxNullColour from it, so use the default HTML colour for + // selection + wxColour col = m_hlbox.GetSelectedTextColour(colFg); + if ( !col.IsOk() ) + { + col = wxDefaultHtmlRenderingStyle::GetSelectedTextColour(colFg); + } + + return col; } virtual wxColour GetSelectedTextBgColour(const wxColour& colBg) { - return m_hlbox.GetSelectedTextBgColour(colBg); + wxColour col = m_hlbox.GetSelectedTextBgColour(colBg); + if ( !col.IsOk() ) + { + col = wxDefaultHtmlRenderingStyle::GetSelectedTextBgColour(colBg); + } + + return col; } private: const wxHtmlListBox& m_hlbox; - DECLARE_NO_COPY_CLASS(wxHtmlListBoxStyle) + wxDECLARE_NO_COPY_CLASS(wxHtmlListBoxStyle); }; - // ---------------------------------------------------------------------------- // event tables // ---------------------------------------------------------------------------- BEGIN_EVENT_TABLE(wxHtmlListBox, wxVListBox) EVT_SIZE(wxHtmlListBox::OnSize) + EVT_MOTION(wxHtmlListBox::OnMouseMove) + EVT_LEFT_DOWN(wxHtmlListBox::OnLeftDown) END_EVENT_TABLE() // ============================================================================ @@ -170,6 +214,26 @@ IMPLEMENT_ABSTRACT_CLASS(wxHtmlListBox, wxVListBox) // wxHtmlListBox creation // ---------------------------------------------------------------------------- +wxHtmlListBox::wxHtmlListBox() + : wxHtmlWindowMouseHelper(this) +{ + Init(); +} + +// normal constructor which calls Create() internally +wxHtmlListBox::wxHtmlListBox(wxWindow *parent, + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name) + : wxHtmlWindowMouseHelper(this) +{ + Init(); + + (void)Create(parent, id, pos, size, style, name); +} + void wxHtmlListBox::Init() { m_htmlParser = NULL; @@ -204,10 +268,10 @@ wxHtmlListBox::~wxHtmlListBox() // wxHtmlListBox appearance // ---------------------------------------------------------------------------- -wxColour wxHtmlListBox::GetSelectedTextColour(const wxColour& colFg) const +wxColour +wxHtmlListBox::GetSelectedTextColour(const wxColour& WXUNUSED(colFg)) const { - return m_htmlRendStyle-> - wxDefaultHtmlRenderingStyle::GetSelectedTextColour(colFg); + return wxNullColour; } wxColour @@ -240,14 +304,24 @@ void wxHtmlListBox::CacheItem(size_t n) const { wxHtmlListBox *self = wxConstCast(this, wxHtmlListBox); - self->m_htmlParser = new wxHtmlWinParser; + self->m_htmlParser = new wxHtmlWinParser(self); m_htmlParser->SetDC(new wxClientDC(self)); m_htmlParser->SetFS(&self->m_filesystem); +#if !wxUSE_UNICODE + if (GetFont().IsOk()) + m_htmlParser->SetInputEncoding(GetFont().GetEncoding()); +#endif + // use system's default GUI font by default: + m_htmlParser->SetStandardFonts(); } wxHtmlContainerCell *cell = (wxHtmlContainerCell *)m_htmlParser-> Parse(OnGetItemMarkup(n)); - wxCHECK_RET( cell, _T("wxHtmlParser::Parse() returned NULL?") ); + wxCHECK_RET( cell, wxT("wxHtmlParser::Parse() returned NULL?") ); + + // set the cell's ID to item's index so that CellCoordsToPhysical() + // can quickly find the item: + cell->SetId(wxString::Format(wxT("%lu"), (unsigned long)n)); cell->Layout(GetClientSize().x - 2*GetMargins().x); @@ -263,6 +337,20 @@ void wxHtmlListBox::OnSize(wxSizeEvent& event) event.Skip(); } +void wxHtmlListBox::RefreshRow(size_t line) +{ + m_cache->InvalidateRange(line, line); + + wxVListBox::RefreshRow(line); +} + +void wxHtmlListBox::RefreshRows(size_t from, size_t to) +{ + m_cache->InvalidateRange(from, to); + + wxVListBox::RefreshRows(from, to); +} + void wxHtmlListBox::RefreshAll() { m_cache->Clear(); @@ -282,30 +370,58 @@ void wxHtmlListBox::SetItemCount(size_t count) // wxHtmlListBox implementation of wxVListBox pure virtuals // ---------------------------------------------------------------------------- +void +wxHtmlListBox::OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const +{ + if ( IsSelected(n) ) + { + if ( DoDrawSolidBackground + ( + GetSelectedTextBgColour(GetBackgroundColour()), + dc, + rect, + n + ) ) + { + return; + } + //else: no custom selection background colour, use base class version + } + + wxVListBox::OnDrawBackground(dc, rect, n); +} + void wxHtmlListBox::OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const { CacheItem(n); wxHtmlCell *cell = m_cache->Get(n); - wxCHECK_RET( cell, _T("this cell should be cached!") ); + wxCHECK_RET( cell, wxT("this cell should be cached!") ); wxHtmlRenderingInfo htmlRendInfo; - // draw the selected cell in selected state - if ( IsSelected(n) ) + // draw the selected cell in selected state ourselves if we're using custom + // colours (to test for this, check the callbacks by passing them any dummy + // (but valid, to avoid asserts) colour): + if ( IsSelected(n) && + (GetSelectedTextColour(*wxBLACK).IsOk() || + GetSelectedTextBgColour(*wxWHITE).IsOk()) ) { wxHtmlSelection htmlSel; - htmlSel.Set(wxPoint(0, 0), cell, wxPoint(INT_MAX, INT_MAX), cell); + htmlSel.Set(wxPoint(0,0), cell, wxPoint(INT_MAX, INT_MAX), cell); htmlRendInfo.SetSelection(&htmlSel); - if ( m_htmlRendStyle ) - htmlRendInfo.SetStyle(m_htmlRendStyle); + htmlRendInfo.SetStyle(m_htmlRendStyle); htmlRendInfo.GetState().SetSelectionState(wxHTML_SEL_IN); } + //else: normal item or selected item with default colours, its background + // was already taken care of in the base class // note that we can't stop drawing exactly at the window boundary as then // even the visible cells part could be not drawn, so always draw the // entire cell - cell->Draw(dc, rect.x+2, rect.y+2, 0, INT_MAX, htmlRendInfo); + cell->Draw(dc, + rect.x + CELL_BORDER, rect.y + CELL_BORDER, + 0, INT_MAX, htmlRendInfo); } wxCoord wxHtmlListBox::OnMeasureItem(size_t n) const @@ -313,9 +429,296 @@ wxCoord wxHtmlListBox::OnMeasureItem(size_t n) const CacheItem(n); wxHtmlCell *cell = m_cache->Get(n); - wxCHECK_MSG( cell, 0, _T("this cell should be cached!") ); + wxCHECK_MSG( cell, 0, wxT("this cell should be cached!") ); return cell->GetHeight() + cell->GetDescent() + 4; } +// ---------------------------------------------------------------------------- +// wxHtmlListBox implementation of wxHtmlListBoxWinInterface +// ---------------------------------------------------------------------------- + +void wxHtmlListBox::SetHTMLWindowTitle(const wxString& WXUNUSED(title)) +{ + // nothing to do +} + +void wxHtmlListBox::OnHTMLLinkClicked(const wxHtmlLinkInfo& link) +{ + OnLinkClicked(GetItemForCell(link.GetHtmlCell()), link); +} + +void wxHtmlListBox::OnLinkClicked(size_t WXUNUSED(n), + const wxHtmlLinkInfo& link) +{ + wxHtmlLinkEvent event(GetId(), link); + GetEventHandler()->ProcessEvent(event); +} + +wxHtmlOpeningStatus +wxHtmlListBox::OnHTMLOpeningURL(wxHtmlURLType WXUNUSED(type), + const wxString& WXUNUSED(url), + wxString *WXUNUSED(redirect)) const +{ + return wxHTML_OPEN; +} + +wxPoint wxHtmlListBox::HTMLCoordsToWindow(wxHtmlCell *cell, + const wxPoint& pos) const +{ + return CellCoordsToPhysical(pos, cell); +} + +wxWindow* wxHtmlListBox::GetHTMLWindow() { return this; } + +wxColour wxHtmlListBox::GetHTMLBackgroundColour() const +{ + return GetBackgroundColour(); +} + +void wxHtmlListBox::SetHTMLBackgroundColour(const wxColour& WXUNUSED(clr)) +{ + // nothing to do +} + +void wxHtmlListBox::SetHTMLBackgroundImage(const wxBitmap& WXUNUSED(bmpBg)) +{ + // nothing to do +} + +void wxHtmlListBox::SetHTMLStatusText(const wxString& WXUNUSED(text)) +{ + // nothing to do +} + +wxCursor wxHtmlListBox::GetHTMLCursor(HTMLCursor type) const +{ + // we don't want to show text selection cursor in listboxes + if (type == HTMLCursor_Text) + return wxHtmlWindow::GetDefaultHTMLCursor(HTMLCursor_Default); + + // in all other cases, use the same cursor as wxHtmlWindow: + return wxHtmlWindow::GetDefaultHTMLCursor(type); +} + +// ---------------------------------------------------------------------------- +// wxHtmlListBox handling of HTML links +// ---------------------------------------------------------------------------- + +wxPoint wxHtmlListBox::GetRootCellCoords(size_t n) const +{ + wxPoint pos(CELL_BORDER, CELL_BORDER); + pos += GetMargins(); + pos.y += GetRowsHeight(GetVisibleBegin(), n); + return pos; +} + +bool wxHtmlListBox::PhysicalCoordsToCell(wxPoint& pos, wxHtmlCell*& cell) const +{ + int n = VirtualHitTest(pos.y); + if ( n == wxNOT_FOUND ) + return false; + + // convert mouse coordinates to coords relative to item's wxHtmlCell: + pos -= GetRootCellCoords(n); + + CacheItem(n); + cell = m_cache->Get(n); + + return true; +} + +size_t wxHtmlListBox::GetItemForCell(const wxHtmlCell *cell) const +{ + wxCHECK_MSG( cell, 0, wxT("no cell") ); + + cell = cell->GetRootCell(); + + wxCHECK_MSG( cell, 0, wxT("no root cell") ); + + // the cell's ID contains item index, see CacheItem(): + unsigned long n; + if ( !cell->GetId().ToULong(&n) ) + { + wxFAIL_MSG( wxT("unexpected root cell's ID") ); + return 0; + } + + return n; +} + +wxPoint +wxHtmlListBox::CellCoordsToPhysical(const wxPoint& pos, wxHtmlCell *cell) const +{ + return pos + GetRootCellCoords(GetItemForCell(cell)); +} + +void wxHtmlListBox::OnInternalIdle() +{ + wxVListBox::OnInternalIdle(); + + if ( wxHtmlWindowMouseHelper::DidMouseMove() ) + { + wxPoint pos = ScreenToClient(wxGetMousePosition()); + wxHtmlCell *cell; + + if ( !PhysicalCoordsToCell(pos, cell) ) + return; + + wxHtmlWindowMouseHelper::HandleIdle(cell, pos); + } +} + +void wxHtmlListBox::OnMouseMove(wxMouseEvent& event) +{ + wxHtmlWindowMouseHelper::HandleMouseMoved(); + event.Skip(); +} + +void wxHtmlListBox::OnLeftDown(wxMouseEvent& event) +{ + wxPoint pos = event.GetPosition(); + wxHtmlCell *cell; + + if ( !PhysicalCoordsToCell(pos, cell) ) + { + event.Skip(); + return; + } + + if ( !wxHtmlWindowMouseHelper::HandleMouseClick(cell, pos, event) ) + { + // no link was clicked, so let the listbox code handle the click (e.g. + // by selecting another item in the list): + event.Skip(); + } +} + + +// ---------------------------------------------------------------------------- +// wxSimpleHtmlListBox +// ---------------------------------------------------------------------------- + +IMPLEMENT_ABSTRACT_CLASS(wxSimpleHtmlListBox, wxHtmlListBox) + + +bool wxSimpleHtmlListBox::Create(wxWindow *parent, wxWindowID id, + const wxPoint& pos, + const wxSize& size, + int n, const wxString choices[], + long style, + const wxValidator& validator, + const wxString& name) +{ + if (!wxHtmlListBox::Create(parent, id, pos, size, style, name)) + return false; + +#if wxUSE_VALIDATORS + SetValidator(validator); #endif + + Append(n, choices); + + return true; +} + +bool wxSimpleHtmlListBox::Create(wxWindow *parent, wxWindowID id, + const wxPoint& pos, + const wxSize& size, + const wxArrayString& choices, + long style, + const wxValidator& validator, + const wxString& name) +{ + if (!wxHtmlListBox::Create(parent, id, pos, size, style, name)) + return false; + +#if wxUSE_VALIDATORS + SetValidator(validator); +#endif + + Append(choices); + + return true; +} + +wxSimpleHtmlListBox::~wxSimpleHtmlListBox() +{ + wxItemContainer::Clear(); +} + +void wxSimpleHtmlListBox::DoClear() +{ + wxASSERT(m_items.GetCount() == m_HTMLclientData.GetCount()); + + m_items.Clear(); + m_HTMLclientData.Clear(); + + UpdateCount(); +} + +void wxSimpleHtmlListBox::Clear() +{ + DoClear(); +} + +void wxSimpleHtmlListBox::DoDeleteOneItem(unsigned int n) +{ + m_items.RemoveAt(n); + + m_HTMLclientData.RemoveAt(n); + + UpdateCount(); +} + +int wxSimpleHtmlListBox::DoInsertItems(const wxArrayStringsAdapter& items, + unsigned int pos, + void **clientData, + wxClientDataType type) +{ + const unsigned int count = items.GetCount(); + + m_items.Insert(wxEmptyString, pos, count); + m_HTMLclientData.Insert(NULL, pos, count); + + for ( unsigned int i = 0; i < count; ++i, ++pos ) + { + m_items[pos] = items[i]; + AssignNewItemClientData(pos, clientData, i, type); + } + + UpdateCount(); + + return pos - 1; +} + +void wxSimpleHtmlListBox::SetString(unsigned int n, const wxString& s) +{ + wxCHECK_RET( IsValid(n), + wxT("invalid index in wxSimpleHtmlListBox::SetString") ); + + m_items[n]=s; + RefreshRow(n); +} + +wxString wxSimpleHtmlListBox::GetString(unsigned int n) const +{ + wxCHECK_MSG( IsValid(n), wxEmptyString, + wxT("invalid index in wxSimpleHtmlListBox::GetString") ); + + return m_items[n]; +} + +void wxSimpleHtmlListBox::UpdateCount() +{ + wxASSERT(m_items.GetCount() == m_HTMLclientData.GetCount()); + wxHtmlListBox::SetItemCount(m_items.GetCount()); + + // very small optimization: if you need to add lot of items to + // a wxSimpleHtmlListBox be sure to use the + // wxSimpleHtmlListBox::Append(const wxArrayString&) method instead! + if (!this->IsFrozen()) + RefreshAll(); +} + +#endif // wxUSE_HTML