/*-*- c++ -*-******************************************************** * wxLwindow.h : a scrolled Window for displaying/entering rich text* * * * (C) 1998, 1999 by Karsten Ballüder (karsten@phy.hw.ac.uk) * * * * $Id$ *******************************************************************/ // ============================================================================ // declarations // ============================================================================ // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- #ifdef __GNUG__ # pragma implementation "wxlwindow.h" #endif #include #ifdef __BORLANDC__ # pragma hdrstop #endif #include "Mpch.h" #ifdef M_BASEDIR # ifndef USE_PCH # include "Mcommon.h" # include "gui/wxMenuDefs.h" # include "gui/wxMApp.h" # endif // USE_PCH # include "gui/wxlwindow.h" # include "gui/wxlparser.h" # include "MDialogs.h" # include "strutil.h" #else # ifdef __WXMSW__ # include # endif # include "wxlwindow.h" # include "wxlparser.h" #endif #include #include #include #ifdef WXLAYOUT_USE_CARET # include #endif // WXLAYOUT_USE_CARET #include // ---------------------------------------------------------------------------- // macros // ---------------------------------------------------------------------------- #ifdef DEBUG # define WXLO_DEBUG(x) wxLogDebug x #else # define WXLO_DEBUG(x) #endif // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- /// offsets to put a nice frame around text #define WXLO_XOFFSET 4 #define WXLO_YOFFSET 4 /// offset to the right and bottom for when to redraw scrollbars #define WXLO_ROFFSET 20 #define WXLO_BOFFSET 20 /// scroll margins when selecting with the mouse #define WXLO_SCROLLMARGIN_X 10 #define WXLO_SCROLLMARGIN_Y 10 /// the size of one scrollbar page in pixels static const int X_SCROLL_PAGE = 10; static const int Y_SCROLL_PAGE = 20; // ---------------------------------------------------------------------------- // event tables // ---------------------------------------------------------------------------- BEGIN_EVENT_TABLE(wxLayoutWindow,wxScrolledWindow) EVT_SIZE (wxLayoutWindow::OnSize) EVT_PAINT (wxLayoutWindow::OnPaint) EVT_CHAR (wxLayoutWindow::OnChar) EVT_KEY_UP (wxLayoutWindow::OnKeyUp) EVT_LEFT_DOWN(wxLayoutWindow::OnLeftMouseDown) EVT_LEFT_UP(wxLayoutWindow::OnLeftMouseUp) EVT_RIGHT_DOWN(wxLayoutWindow::OnRightMouseClick) EVT_LEFT_DCLICK(wxLayoutWindow::OnMouseDblClick) EVT_MIDDLE_DOWN(wxLayoutWindow::OnMiddleMouseDown) EVT_MOTION (wxLayoutWindow::OnMouseMove) EVT_UPDATE_UI(WXLOWIN_MENU_UNDERLINE, wxLayoutWindow::OnUpdateMenuUnderline) EVT_UPDATE_UI(WXLOWIN_MENU_BOLD, wxLayoutWindow::OnUpdateMenuBold) EVT_UPDATE_UI(WXLOWIN_MENU_ITALICS, wxLayoutWindow::OnUpdateMenuItalic) EVT_MENU_RANGE(WXLOWIN_MENU_FIRST, WXLOWIN_MENU_LAST, wxLayoutWindow::OnMenu) EVT_SET_FOCUS(wxLayoutWindow::OnSetFocus) EVT_KILL_FOCUS(wxLayoutWindow::OnKillFocus) // EVT_IDLE(wxLayoutWindow::ResizeScrollbars) END_EVENT_TABLE() // ---------------------------------------------------------------------------- // function prototypes // ---------------------------------------------------------------------------- /// returns TRUE if keyCode is one of arrows/home/end/page{up|down} keys static bool IsDirectionKey(long keyCode); // ============================================================================ // implementation // ============================================================================ #ifndef wxWANTS_CHARS # define wxWANTS_CHARS 0 #endif // ---------------------------------------------------------------------------- // wxLayoutWindow // ---------------------------------------------------------------------------- wxLayoutWindow::wxLayoutWindow(wxWindow *parent) : wxScrolledWindow(parent, -1, wxDefaultPosition, wxDefaultSize, wxHSCROLL | wxVSCROLL | wxBORDER | wxWANTS_CHARS), m_llist(NULL) { SetStatusBar(NULL); // don't use statusbar m_Editable = false; m_doSendEvents = false; m_ViewStartX = 0; m_ViewStartY = 0; m_DoPopupMenu = true; m_PopupMenu = MakeFormatMenu(); m_memDC = new wxMemoryDC; m_bitmap = new wxBitmap(4,4); m_bitmapSize = wxPoint(4,4); m_llist = new wxLayoutList(); m_BGbitmap = NULL; m_ScrollToCursor = false; #ifndef __WXMSW__ m_FocusFollowMode = false; #endif SetWrapMargin(0); // no scrollbars initially m_hasHScrollbar = m_hasVScrollbar = false; m_Selecting = false; #ifdef WXLAYOUT_USE_CARET // FIXME cursor size shouldn't be hardcoded wxCaret *caret = new wxCaret(this, 2, 20); SetCaret(caret); m_llist->SetCaret(caret); #endif // WXLAYOUT_USE_CARET m_HaveFocus = FALSE; m_HandCursor = FALSE; m_CursorVisibility = -1; SetCursor(wxCURSOR_IBEAM); SetDirty(); // at least under Windows, this should be the default behaviour m_AutoDeleteSelection = TRUE; } wxLayoutWindow::~wxLayoutWindow() { delete m_memDC; // deletes bitmap automatically (?) delete m_bitmap; delete m_llist; delete m_PopupMenu; SetBackgroundBitmap(NULL); } void wxLayoutWindow::Clear(int family, int size, int style, int weight, int underline, wxColour *fg, wxColour *bg) { GetLayoutList()->Clear(family,size,style,weight,underline,fg,bg); SetBackgroundColour(GetLayoutList()->GetDefaultStyleInfo().GetBGColour()); wxScrolledWindow::Clear(); ResizeScrollbars(true); SetDirty(); SetModified(FALSE); if ( m_Editable ) m_CursorVisibility = 1; #ifdef WXLAYOUT_USE_CARET if ( m_CursorVisibility == 1 ) GetCaret()->Show(); #endif // WXLAYOUT_USE_CARET RequestUpdate((wxRect *)NULL); } void wxLayoutWindow::Refresh(bool eraseBackground, const wxRect *rect) { wxScrolledWindow::Refresh(eraseBackground, rect); } void wxLayoutWindow::OnMouse(int eventId, wxMouseEvent& event) { wxClientDC dc( this ); PrepareDC( dc ); if ( eventId != WXLOWIN_MENU_MOUSEMOVE #ifndef __WXMSW__ || m_FocusFollowMode #endif ) SetFocus(); wxPoint findPos; findPos.x = dc.DeviceToLogicalX(event.GetX()); findPos.y = dc.DeviceToLogicalY(event.GetY()); findPos.x -= WXLO_XOFFSET; findPos.y -= WXLO_YOFFSET; if(findPos.x < 0) findPos.x = 0; if(findPos.y < 0) findPos.y = 0; m_ClickPosition = wxPoint(event.GetX(), event.GetY()); // Scroll the window if the mouse is at the end of it: if(m_Selecting && eventId == WXLOWIN_MENU_MOUSEMOVE) { //WXLO_DEBUG(("selecting at : %d/%d", (int) event.GetX(), (int)event.GetY())); int left, top; ViewStart(&left, &top); wxSize size = GetClientSize(); int xdelta, ydelta; if(event.GetX() < WXLO_SCROLLMARGIN_X) xdelta = -(WXLO_SCROLLMARGIN_X-event.GetX()); else if(event.GetX() > size.x-WXLO_SCROLLMARGIN_X) xdelta = event.GetX()-size.x+WXLO_SCROLLMARGIN_X; else xdelta = 0; if(event.GetY() < WXLO_SCROLLMARGIN_Y) ydelta = -(WXLO_SCROLLMARGIN_Y-event.GetY()); else if(event.GetY() > size.y-WXLO_SCROLLMARGIN_Y) ydelta = event.GetY()-size.y+WXLO_SCROLLMARGIN_Y; else ydelta = 0; //WXLO_DEBUG(("xdelta: %d", (int) xdelta)); if(xdelta != 0 || ydelta != 0) { top += ydelta; if(top < 0) top = 0; left += xdelta; if(left < 0) left = 0; Scroll(left, top); } } wxPoint cursorPos; bool found; wxLayoutObject *obj = m_llist->FindObjectScreen(dc, findPos, &cursorPos, &found); wxLayoutObject::UserData *u = obj ? obj->GetUserData() : NULL; // has the mouse only been moved? switch ( eventId ) { case WXLOWIN_MENU_MOUSEMOVE: { // this variables is used to only erase the message in the status // bar if we had put it there previously - otherwise empting status // bar might be undesirable static bool s_hasPutMessageInStatusBar = false; // found is only true if we are really over an object, not just // behind it if(found && u && ! m_Selecting) { if(!m_HandCursor) SetCursor(wxCURSOR_HAND); m_HandCursor = TRUE; if(m_StatusBar && m_StatusFieldLabel != -1) { const wxString &label = u->GetLabel(); if(label.Length()) { m_StatusBar->SetStatusText(label, m_StatusFieldLabel); s_hasPutMessageInStatusBar = true; } } } else { if(m_HandCursor) SetCursor(wxCURSOR_IBEAM); m_HandCursor = FALSE; if( m_StatusBar && m_StatusFieldLabel != -1 && s_hasPutMessageInStatusBar ) { m_StatusBar->SetStatusText("", m_StatusFieldLabel); } } } // selecting? if ( event.LeftIsDown() ) { // m_Selecting might not be set if the button got pressed // outside this window, so check for it: if( m_Selecting ) { m_llist->ContinueSelection(cursorPos, m_ClickPosition); RequestUpdate(); // TODO: we don't have to redraw everything! } } if ( u ) { u->DecRef(); u = NULL; } break; case WXLOWIN_MENU_LDOWN: { // always move cursor to mouse click: m_llist->MoveCursorTo(cursorPos); // clicking a mouse removes the selection if ( m_llist->HasSelection() ) { m_llist->DiscardSelection(); m_Selecting = false; RequestUpdate(); // TODO: we don't have to redraw everything! } // Calculate where the top of the visible area is: int x0, y0; ViewStart(&x0,&y0); int dx, dy; GetScrollPixelsPerUnit(&dx, &dy); x0 *= dx; y0 *= dy; wxPoint offset(-x0+WXLO_XOFFSET, -y0+WXLO_YOFFSET); if(m_CursorVisibility == -1) m_CursorVisibility = 1; #ifdef WXLAYOUT_USE_CARET if ( m_CursorVisibility == 1 ) GetCaret()->Show(); #endif // WXLAYOUT_USE_CARET if(m_CursorVisibility) { // draw a thick cursor for editable windows with focus m_llist->DrawCursor(dc, m_HaveFocus && IsEditable(), offset); } #ifdef __WXGTK__ RequestUpdate(); // RequestUpdate suppresses flicker under GTK #endif // wxGTK // start selection m_llist->StartSelection(wxPoint(-1, -1), m_ClickPosition); m_Selecting = true; } break; case WXLOWIN_MENU_LUP: if ( m_Selecting ) { m_llist->EndSelection(); m_Selecting = false; RequestUpdate(); // TODO: we don't have to redraw everything! } break; case WXLOWIN_MENU_MDOWN: Paste(TRUE); break; case WXLOWIN_MENU_DBLCLICK: // select a word under cursor m_llist->MoveCursorTo(cursorPos); m_llist->MoveCursorWord(-1); m_llist->StartSelection(); m_llist->MoveCursorWord(1, false); m_llist->EndSelection(); m_Selecting = false; RequestUpdate(); // TODO: we don't have to redraw everything! break; } // notify about mouse events? if( m_doSendEvents ) { // only do the menu if activated, editable and not on a clickable object if(eventId == WXLOWIN_MENU_RCLICK && IsEditable() && (! obj || u == NULL)) { PopupMenu(m_PopupMenu, m_ClickPosition.x, m_ClickPosition.y); if(u) u->DecRef(); return; } // find the object at this position if(obj) { wxCommandEvent commandEvent(wxEVT_COMMAND_MENU_SELECTED, eventId); commandEvent.SetEventObject( this ); commandEvent.SetClientData((char *)obj); GetEventHandler()->ProcessEvent(commandEvent); } } if( u ) u->DecRef(); } // ---------------------------------------------------------------------------- // keyboard handling. // ---------------------------------------------------------------------------- void wxLayoutWindow::OnChar(wxKeyEvent& event) { int keyCode = event.KeyCode(); bool ctrlDown = event.ControlDown(); #ifdef WXLAYOUT_DEBUG if(keyCode == WXK_F1) { m_llist->Debug(); return; } #endif // Force m_Selecting to be false if shift is no longer // pressed. OnKeyUp() cannot catch all Shift-Up events. if(m_Selecting && !event.ShiftDown()) { m_Selecting = false; m_llist->EndSelection(); m_llist->DiscardSelection(); //FIXME: correct? } // If we deleted the selection here, we must not execute the // deletion in Delete/Backspace handling. bool deletedSelection = false; // pressing any non-arrow key optionally replaces the selection: if(m_AutoDeleteSelection && !m_Selecting && m_llist->HasSelection() && ! IsDirectionKey(keyCode) && ! (event.AltDown() || ctrlDown) ) { m_llist->DeleteSelection(); deletedSelection = true; SetDirty(); } // + starts selection if ( IsDirectionKey(keyCode) ) { // just continue the old selection if ( m_Selecting ) { if( event.ShiftDown() ) m_llist->ContinueSelection(); else { m_llist->DiscardSelection(); m_Selecting = false; } } else if( event.ShiftDown() ) { m_Selecting = true; m_llist->StartSelection(); } } // If needed, make cursor visible: if(m_CursorVisibility == -1) m_CursorVisibility = 1; /* These two nested switches work like this: The first one processes all non-editing keycodes, to move the cursor, etc. It's default will process all keycodes causing modifications to the buffer, but only if editing is allowed. */ switch(keyCode) { case WXK_RIGHT: if ( ctrlDown ) m_llist->MoveCursorWord(1); else m_llist->MoveCursorHorizontally(1); break; case WXK_LEFT: if ( ctrlDown ) m_llist->MoveCursorWord(-1); else m_llist->MoveCursorHorizontally(-1); break; case WXK_UP: m_llist->MoveCursorVertically(-1); break; case WXK_DOWN: m_llist->MoveCursorVertically(1); break; case WXK_PRIOR: m_llist->MoveCursorVertically(-Y_SCROLL_PAGE); break; case WXK_NEXT: m_llist->MoveCursorVertically(Y_SCROLL_PAGE); break; case WXK_HOME: if ( ctrlDown ) m_llist->MoveCursorTo(wxPoint(0, 0)); else m_llist->MoveCursorToBeginOfLine(); break; case WXK_END: if ( ctrlDown ) m_llist->MoveCursorToEnd(); else m_llist->MoveCursorToEndOfLine(); break; default: if(ctrlDown && ! IsEditable()) switch(keyCode) { case 'c': // this should work even in read-only mode Copy(); break; #ifdef M_BASEDIR case 's': // search Find(""); break; case 't': // search again FindAgain(); break; #endif default: ; } else if( IsEditable() ) { /* First, handle control keys */ if(ctrlDown && ! event.AltDown()) { if(keyCode >= 'A' && keyCode <= 'Z') keyCode = tolower(keyCode); switch(keyCode) { case WXK_INSERT: Copy(); break; case WXK_DELETE : if(! deletedSelection) { m_llist->DeleteWord(); SetDirty(); } break; case 'd': if(! deletedSelection) // already done { m_llist->Delete(1); SetDirty(); } break; case 'y': m_llist->DeleteLines(1); SetDirty(); break; case 'h': // like backspace if(m_llist->MoveCursorHorizontally(-1)) { m_llist->Delete(1); SetDirty(); } break; #ifdef M_BASEDIR case 's': // search Find(""); break; case 't': // search again FindAgain(); break; #endif case 'u': m_llist->DeleteToBeginOfLine(); SetDirty(); break; case 'k': m_llist->DeleteToEndOfLine(); SetDirty(); break; case 'v': Paste(); break; case 'x': Cut(); break; #ifdef WXLAYOUT_DEBUG case WXK_F1: m_llist->SetFont(-1,-1,-1,-1,true); // underlined break; #endif default: ; } } // ALT only: else if( event.AltDown() && ! event.ControlDown() ) { switch(keyCode) { case WXK_DELETE: case 'd': m_llist->DeleteWord(); SetDirty(); break; default: ; } } // no control keys: else if ( ! event.AltDown() && ! event.ControlDown()) { switch(keyCode) { case WXK_INSERT: if(event.ShiftDown()) Paste(); break; case WXK_DELETE : if(event.ShiftDown()) Cut(); else if(! deletedSelection) { m_llist->Delete(1); SetDirty(); } break; case WXK_BACK: // backspace if(! deletedSelection) if(m_llist->MoveCursorHorizontally(-1)) { m_llist->Delete(1); SetDirty(); } break; case WXK_RETURN: if(m_WrapMargin > 0) m_llist->WrapLine(m_WrapMargin); m_llist->LineBreak(); SetDirty(); break; case WXK_TAB: if ( !event.ShiftDown() ) { // TODO should be configurable static const int tabSize = 8; CoordType x = m_llist->GetCursorPos().x; size_t numSpaces = tabSize - x % tabSize; m_llist->Insert(wxString(' ', numSpaces)); SetDirty(); } break; default: if((!(event.ControlDown() || event.AltDown() //#if 0 ///FIXME: wxGTK reports MetaDown always || event.MetaDown() //#endif )) && (keyCode < 256 && keyCode >= 32) ) { if(m_WrapMargin > 0 && isspace(keyCode)) m_llist->WrapLine(m_WrapMargin); m_llist->Insert((char)keyCode); SetDirty(); } break; } } }// if(IsEditable()) }// first switch() if ( m_Selecting ) { // continue selection to the current (new) cursor position m_llist->ContinueSelection(); } ScrollToCursor(); // refresh the screen RequestUpdate(m_llist->GetUpdateRect()); } void wxLayoutWindow::OnKeyUp(wxKeyEvent& event) { if ( event.KeyCode() == WXK_SHIFT && m_Selecting ) { m_llist->EndSelection(); m_Selecting = false; } event.Skip(); } void wxLayoutWindow::ScrollToCursor(void) { //is always needed to make sure we know where the cursor is //if(IsDirty()) RequestUpdate(m_llist->GetUpdateRect()); int x0,y0,x1,y1, dx, dy; // Calculate where the top of the visible area is: ViewStart(&x0,&y0); GetScrollPixelsPerUnit(&dx, &dy); x0 *= dx; y0 *= dy; WXLO_DEBUG(("ScrollToCursor: ViewStart is %d/%d", x0, y0)); // Get the size of the visible window: GetClientSize(&x1, &y1); // Make sure that the scrollbars are at a position so that the cursor is // visible if we are editing WXLO_DEBUG(("m_ScrollToCursor = %d", (int) m_ScrollToCursor)); wxPoint cc = m_llist->GetCursorScreenPos(); // the cursor should be completely visible in both directions wxPoint cs(m_llist->GetCursorSize()); int nx = -1, ny = -1; if ( cc.x < x0 || cc.x >= x0 + x1 - cs.x ) { nx = cc.x - x1/2; if ( nx < 0 ) nx = 0; } if ( cc.y < y0 || cc.y >= y0 + y1 - cs.y ) { ny = cc.y - y1/2; if ( ny < 0) ny = 0; } if ( nx != -1 || ny != -1 ) { // set new view start Scroll(nx == -1 ? -1 : (nx+dx-1)/dx, ny == -1 ? -1 : (ny+dy-1)/dy); // avoid recursion m_ScrollToCursor = false; RequestUpdate(); } } void wxLayoutWindow::OnPaint( wxPaintEvent &WXUNUSED(event)) { wxRect region = GetUpdateRegion().GetBox(); InternalPaint(®ion); } void wxLayoutWindow::RequestUpdate(const wxRect *updateRect) { #ifdef __WXGTK__ // Calling Refresh() causes bad flicker under wxGTK!!! InternalPaint(updateRect); #else // shouldn't specify the update rectangle if it doesn't include all the // changed locations - otherwise, they won't be repainted at all because // the system clips the display to the update rect Refresh(FALSE); //, updateRect); #endif } void wxLayoutWindow::InternalPaint(const wxRect *updateRect) { wxPaintDC dc( this ); PrepareDC( dc ); #ifdef WXLAYOUT_USE_CARET // hide the caret before drawing anything GetCaret()->Hide(); #endif // WXLAYOUT_USE_CARET int x0,y0,x1,y1, dx, dy; // Calculate where the top of the visible area is: ViewStart(&x0,&y0); GetScrollPixelsPerUnit(&dx, &dy); x0 *= dx; y0 *= dy; // Get the size of the visible window: GetClientSize(&x1,&y1); wxASSERT(x1 >= 0); wxASSERT(y1 >= 0); if(updateRect) { WXLO_DEBUG(("Update rect: %ld,%ld / %ld,%ld", updateRect->x, updateRect->y, updateRect->x+updateRect->width, updateRect->y+updateRect->height)); } if(IsDirty()) { WXLO_DEBUG(("InternalPaint, isdirty, list size: %ld,%ld", (unsigned long) m_llist->GetSize().x, (unsigned long) m_llist->GetSize().y)); // m_llist->ForceTotalLayout(); m_llist->Layout(dc); WXLO_DEBUG(("InternalPaint, isdirty, list size after layout: %ld,%ld", (unsigned long) m_llist->GetSize().x, (unsigned long) m_llist->GetSize().y)); ResizeScrollbars(); ResetDirty(); } /* Check whether the window has grown, if so, we need to reallocate the bitmap to be larger. */ if(x1 > m_bitmapSize.x || y1 > m_bitmapSize.y) { wxASSERT(m_bitmapSize.x > 0); wxASSERT(m_bitmapSize.y > 0); m_memDC->SelectObject(wxNullBitmap); delete m_bitmap; m_bitmapSize = wxPoint(x1,y1); m_bitmap = new wxBitmap(x1,y1); m_memDC->SelectObject(*m_bitmap); } m_memDC->SetDeviceOrigin(0,0); m_memDC->SetBackground(wxBrush(m_llist->GetDefaultStyleInfo().GetBGColour(),wxSOLID)); m_memDC->SetPen(wxPen(m_llist->GetDefaultStyleInfo().GetBGColour(), 0,wxTRANSPARENT)); m_memDC->SetLogicalFunction(wxCOPY); m_memDC->Clear(); // fill the background with the background bitmap if(m_BGbitmap) { CoordType y, x, w = m_BGbitmap->GetWidth(), h = m_BGbitmap->GetHeight(); for(y = 0; y < y1; y+=h) for(x = 0; x < x1; x+=w) m_memDC->DrawBitmap(*m_BGbitmap, x, y); m_memDC->SetBackgroundMode(wxTRANSPARENT); } // This is the important bit: we tell the list to draw itself #if WXLO_DEBUG_URECT if(updateRect) { WXLO_DEBUG(("Update rect: %ld,%ld / %ld,%ld", updateRect->x, updateRect->y, updateRect->x+updateRect->width, updateRect->y+updateRect->height)); } #endif // Device origins on the memDC are suspect, we translate manually // with the translate parameter of Draw(). wxPoint offset(-x0+WXLO_XOFFSET,-y0+WXLO_YOFFSET); m_llist->Draw(*m_memDC,offset, y0, y0+y1); // We start calculating a new update rect before drawing the // cursor, so that the cursor coordinates get included in the next // update rectangle (although they are drawn on the memDC, this is // needed to erase it): m_llist->InvalidateUpdateRect(); if(m_CursorVisibility != 0) { // draw a thick cursor for editable windows with focus m_llist->DrawCursor(*m_memDC, m_HaveFocus && IsEditable(), offset); } // Now copy everything to the screen: #if 0 // This somehow doesn't work, but even the following bit with the // whole rect at once is still a bit broken I think. wxRegionIterator ri ( GetUpdateRegion() ); if(ri) while(ri) { WXLO_DEBUG(("UpdateRegion: %ld,%ld, %ld,%ld", ri.GetX(),ri.GetY(),ri.GetW(),ri.GetH())); dc.Blit(x0+ri.GetX(),y0+ri.GetY(),ri.GetW(),ri.GetH(), m_memDC,ri.GetX(),ri.GetY(),wxCOPY,FALSE); ri++; } else #endif { // FIXME: Trying to copy only the changed parts, but it does not seem // to work: // x0 = updateRect->x; y0 = updateRect->y; // if(updateRect->height < y1) // y1 = updateRect->height; // y1 += WXLO_YOFFSET; //FIXME might not be needed dc.Blit(x0,y0,x1,y1,m_memDC,0,0,wxCOPY,FALSE); } #ifdef WXLAYOUT_USE_CARET // show the caret back after everything is redrawn GetCaret()->Show(); #endif // WXLAYOUT_USE_CARET ResetDirty(); if ( m_StatusBar && m_StatusFieldCursor != -1 ) { static wxPoint s_oldCursorPos(-1, -1); wxPoint pos(m_llist->GetCursorPos()); // avoid unnecessary status bar refreshes if ( pos != s_oldCursorPos ) { s_oldCursorPos = pos; wxString label; label.Printf(_("Ln:%d Col:%d"), pos.y + 1, pos.x + 1); m_StatusBar->SetStatusText(label, m_StatusFieldCursor); } } } void wxLayoutWindow::OnSize(wxSizeEvent &event) { if ( m_llist ) ResizeScrollbars(); event.Skip(); } // change the range and position of scrollbars void wxLayoutWindow::ResizeScrollbars(bool exact) { if(IsDirty()) { wxClientDC dc( this ); PrepareDC( dc ); // m_llist->ForceTotalLayout(); m_llist->Layout(dc); ResetDirty(); RequestUpdate(); } wxPoint max = m_llist->GetSize(); wxSize size = GetClientSize(); WXLO_DEBUG(("ResizeScrollbars: max size = (%ld, %ld)", (long int)max.x, (long int) max.y)); // in the absence of scrollbars we should compare with the client size if ( !m_hasHScrollbar ) m_maxx = size.x;// - WXLO_ROFFSET; if ( !m_hasVScrollbar ) m_maxy = size.y;// - WXLO_BOFFSET; // check if the text hasn't become too big // TODO why do we set both at once? they're independent... if( max.x > m_maxx - WXLO_ROFFSET || max.y > m_maxy - WXLO_BOFFSET || exact ) { // text became too large if ( !exact ) { // add an extra bit to the sizes to avoid future updates max.x += WXLO_ROFFSET; max.y += WXLO_BOFFSET; } ViewStart(&m_ViewStartX, &m_ViewStartY); SetScrollbars(X_SCROLL_PAGE, Y_SCROLL_PAGE, max.x / X_SCROLL_PAGE + 1, max.y / Y_SCROLL_PAGE + 1, m_ViewStartX, m_ViewStartY, true); m_hasHScrollbar = m_hasVScrollbar = true; m_maxx = max.x + X_SCROLL_PAGE; m_maxy = max.y + Y_SCROLL_PAGE; } #if 0 //FIXME: this code is pretty broken, producing "arithmetic //exception" crashes (div by 0??) else { // check if the window hasn't become too big, thus making the scrollbars // unnecessary if ( !exact ) { // add an extra bit to the sizes to avoid future updates max.x -= WXLO_ROFFSET; max.y -= WXLO_BOFFSET; } if ( m_hasHScrollbar && (max.x < m_maxx) ) { // remove the horizontal scrollbar SetScrollbars(0, -1, 0, -1, 0, -1, true); m_hasHScrollbar = false; } if ( m_hasVScrollbar && (max.y < m_maxy) ) { // remove the vertical scrollbar SetScrollbars(-1, 0, -1, 0, -1, 0, true); m_hasVScrollbar = false; } } #endif } // ---------------------------------------------------------------------------- // clipboard operations // // ---------------------------------------------------------------------------- void wxLayoutWindow::Paste(bool primary) { // Read some text if (wxTheClipboard->Open()) { #if __WXGTK__ if(primary) wxTheClipboard->UsePrimarySelection(); #endif #if wxUSE_PRIVATE_CLIPBOARD_FORMAT wxLayoutDataObject wxldo; if (wxTheClipboard->IsSupported( wxldo.GetFormat() )) { wxTheClipboard->GetData(&wxldo); { } //FIXME: missing functionality m_llist->Insert(wxldo.GetList()); } else #endif { wxTextDataObject data; if (wxTheClipboard->IsSupported( data.GetFormat() )) { wxTheClipboard->GetData(data); wxString text = data.GetText(); wxLayoutImportText( m_llist, text); SetDirty(); } } wxTheClipboard->Close(); } } bool wxLayoutWindow::Copy(bool invalidate) { // Calling GetSelection() will automatically do an EndSelection() // on the list, but we need to take a note of it, too: if(m_Selecting) { m_Selecting = false; m_llist->EndSelection(); } wxLayoutDataObject wldo; wxLayoutList *llist = m_llist->GetSelection(&wldo, invalidate); if(! llist) return FALSE; // Export selection as text: wxString text; wxLayoutExportObject *exp; wxLayoutExportStatus status(llist); while((exp = wxLayoutExport( &status, WXLO_EXPORT_AS_TEXT)) != NULL) { if(exp->type == WXLO_EXPORT_TEXT) text << *(exp->content.text); delete exp; } delete llist; // The exporter always appends a newline, so we chop it off if it // is there: { size_t len = text.Length(); if(len > 2 && text[len-2] == '\r') // Windows text = text.Mid(0,len-2); else if(len > 1 && text[len-1] == '\n') text = text.Mid(0,len-1); } if (wxTheClipboard->Open()) { wxTextDataObject *data = new wxTextDataObject( text ); bool rc = wxTheClipboard->SetData( data ); #if wxUSE_PRIVATE_CLIPBOARD_FORMAT rc |= wxTheClipboard->AddData( &wldo ); #endif wxTheClipboard->Close(); return rc; } return FALSE; } bool wxLayoutWindow::Cut(void) { if(Copy(false)) // do not invalidate selection after copy { m_llist->DeleteSelection(); SetDirty(); return TRUE; } else return FALSE; } // ---------------------------------------------------------------------------- // searching // ---------------------------------------------------------------------------- #ifdef M_BASEDIR bool wxLayoutWindow::Find(const wxString &needle, wxPoint * fromWhere, const wxString &configPath) { wxPoint found; if(needle.Length() == 0) { if( ! MInputBox(&m_FindString, _("Find text"), _(" Find:"), this, configPath, "") || strutil_isempty(m_FindString)) return true; } else m_FindString = needle; if(fromWhere == NULL) found = m_llist->FindText(m_FindString, m_llist->GetCursorPos()); else found = m_llist->FindText(m_FindString, *fromWhere); if(found.x != -1) { if(fromWhere) { *fromWhere = found; fromWhere->x ++; } m_llist->MoveCursorTo(found); ScrollToCursor(); RequestUpdate(); return true; } return false; } bool wxLayoutWindow::FindAgain(void) { bool rc = Find(m_FindString); return rc; } #endif // ---------------------------------------------------------------------------- // popup menu stuff // ---------------------------------------------------------------------------- wxMenu * wxLayoutWindow::MakeFormatMenu() { wxMenu *m = new wxMenu(_("Layout Menu")); m->Append(WXLOWIN_MENU_LARGER ,_("&Larger"),_("Switch to larger font."), false); m->Append(WXLOWIN_MENU_SMALLER ,_("&Smaller"),_("Switch to smaller font."), false); m->AppendSeparator(); m->Append(WXLOWIN_MENU_UNDERLINE, _("&Underline"),_("Underline mode."), true); m->Append(WXLOWIN_MENU_BOLD, _("&Bold"),_("Bold mode."), true); m->Append(WXLOWIN_MENU_ITALICS, _("&Italics"),_("Italics mode."), true); m->AppendSeparator(); m->Append(WXLOWIN_MENU_ROMAN ,_("&Roman"),_("Switch to roman font."), false); m->Append(WXLOWIN_MENU_TYPEWRITER,_("&Typewriter"),_("Switch to typewriter font."), false); m->Append(WXLOWIN_MENU_SANSSERIF ,_("&Sans Serif"),_("Switch to sans serif font."), false); return m; } void wxLayoutWindow::OnUpdateMenuUnderline(wxUpdateUIEvent& event) { event.Check(m_llist->IsFontUnderlined()); } void wxLayoutWindow::OnUpdateMenuBold(wxUpdateUIEvent& event) { event.Check(m_llist->IsFontBold()); } void wxLayoutWindow::OnUpdateMenuItalic(wxUpdateUIEvent& event) { event.Check(m_llist->IsFontItalic()); } void wxLayoutWindow::OnMenu(wxCommandEvent& event) { switch (event.GetId()) { case WXLOWIN_MENU_LARGER: m_llist->SetFontLarger(); RequestUpdate(); break; case WXLOWIN_MENU_SMALLER: m_llist->SetFontSmaller(); RequestUpdate(); break; case WXLOWIN_MENU_UNDERLINE: m_llist->ToggleFontUnderline(); RequestUpdate(); break; case WXLOWIN_MENU_BOLD: m_llist->ToggleFontWeight(); RequestUpdate(); break; case WXLOWIN_MENU_ITALICS: m_llist->ToggleFontItalics(); RequestUpdate(); break; case WXLOWIN_MENU_ROMAN: m_llist->SetFontFamily(wxROMAN); RequestUpdate(); break; case WXLOWIN_MENU_TYPEWRITER: m_llist->SetFontFamily(wxFIXED); RequestUpdate(); break; case WXLOWIN_MENU_SANSSERIF: m_llist->SetFontFamily(wxSWISS); RequestUpdate(); break; } } // ---------------------------------------------------------------------------- // focus // ---------------------------------------------------------------------------- void wxLayoutWindow::OnSetFocus(wxFocusEvent &ev) { m_HaveFocus = true; ev.Skip(); RequestUpdate(); // cursor must change } void wxLayoutWindow::OnKillFocus(wxFocusEvent &ev) { m_HaveFocus = false; ev.Skip(); RequestUpdate();// cursor must change } // ---------------------------------------------------------------------------- // private functions // ---------------------------------------------------------------------------- static bool IsDirectionKey(long keyCode) { switch(keyCode) { case WXK_UP: case WXK_DOWN: case WXK_RIGHT: case WXK_LEFT: case WXK_PRIOR: case WXK_NEXT: case WXK_HOME: case WXK_END: return true; default: return false; } }