]> git.saurik.com Git - wxWidgets.git/blobdiff - samples/richedit/wxlwindow.cpp
1. wxStaticLine implemented (generic (ugly) and MSW versions)
[wxWidgets.git] / samples / richedit / wxlwindow.cpp
index c4e292a1a9757dcbf5ea24ad1d9da5cdb219966d..63ce2369cf59a69922ed2e1a0f0332e8173e83c8 100644 (file)
@@ -18,7 +18,7 @@
 #   pragma implementation "wxlwindow.h"
 #endif
 
-#include "wx/wxprec.h"
+#include <wx/wxprec.h>
 
 #ifdef __BORLANDC__
 #  pragma hdrstop
@@ -95,6 +95,7 @@ BEGIN_EVENT_TABLE(wxLayoutWindow,wxScrolledWindow)
    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)
@@ -117,15 +118,6 @@ static bool IsDirectionKey(long keyCode);
 // implementation
 // ============================================================================
 
-/* LEAVE IT HERE UNTIL WXGTK WORKS AGAIN!!! */
-#ifdef __WXGTK__
-/// allows me to compare to wxPoints
-static bool operator != (wxPoint const &p1, wxPoint const &p2)
-{
-   return p1.x != p2.x || p1.y != p2.y;
-}
-#endif // __WXGTK__
-
 #ifndef wxWANTS_CHARS
    #define wxWANTS_CHARS 0
 #endif
@@ -139,7 +131,8 @@ wxLayoutWindow::wxLayoutWindow(wxWindow *parent)
                                  wxDefaultPosition, wxDefaultSize,
                                  wxHSCROLL | wxVSCROLL |
                                  wxBORDER |
-                                 wxWANTS_CHARS)
+                                 wxWANTS_CHARS),
+                m_llist(NULL)
 {
    SetStatusBar(NULL); // don't use statusbar
    m_Editable = false;
@@ -151,18 +144,11 @@ wxLayoutWindow::wxLayoutWindow(wxWindow *parent)
    m_bitmap = new wxBitmap(4,4);
    m_bitmapSize = wxPoint(4,4);
    m_llist = new wxLayoutList();
-
    m_BGbitmap = NULL;
    m_ScrollToCursor = false;
    SetWrapMargin(0);
-   wxPoint max = m_llist->GetSize();
-   SetScrollbars(X_SCROLL_PAGE, Y_SCROLL_PAGE,
-                 max.x / X_SCROLL_PAGE + 1, max.y / Y_SCROLL_PAGE + 1);
-   EnableScrolling(true, true);
-   m_maxx = max.x + X_SCROLL_PAGE;
-   m_maxy = max.y + Y_SCROLL_PAGE;
 
-   // no scrollbars initially (BTW, why then we do all the stuff above?)
+   // no scrollbars initially
    m_hasHScrollbar =
    m_hasVScrollbar = false;
 
@@ -173,13 +159,16 @@ wxLayoutWindow::wxLayoutWindow(wxWindow *parent)
    wxCaret *caret = new wxCaret(this, 2, 20);
    SetCaret(caret);
    m_llist->SetCaret(caret);
-   caret->Show();
 #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()
@@ -202,21 +191,42 @@ wxLayoutWindow::Clear(int family,
 {
    GetLayoutList()->Clear(family,size,style,weight,underline,fg,bg);
    SetBackgroundColour(GetLayoutList()->GetDefaultStyleInfo().GetBGColour());
+   wxScrolledWindow::Clear();
    ResizeScrollbars(true);
    SetDirty();
    SetModified(false);
-   wxScrolledWindow::Clear();
+
+   if ( m_Editable )
+      m_CursorVisibility = 1;
+
+#ifdef WXLAYOUT_USE_CARET
+   if ( m_CursorVisibility == 1 )
+      GetCaret()->Show();
+#endif // WXLAYOUT_USE_CARET
+
    DoPaint((wxRect *)NULL);
 }
 
+void wxLayoutWindow::Refresh(bool eraseBackground, const wxRect *rect)
+{
+   wxScrolledWindow::Refresh(eraseBackground, rect);
+
+   ResizeScrollbars();
+//FIXME is this needed? It causes problems...   ScrollToCursor();
+}
+
 void
 wxLayoutWindow::OnMouse(int eventId, wxMouseEvent& event)
 {
    wxClientDC dc( this );
    PrepareDC( dc );
+#ifdef __WXMSW__
    if ( eventId != WXLOWIN_MENU_MOUSEMOVE )
+#endif
    {
-       // moving the mouse in a window shouldn't give it the focus!
+      // moving the mouse in a window shouldn't give it the focus!
+      // Oh yes! wxGTK's focus handling is so broken, that this is the 
+      // only sensible way to go.
       SetFocus();
    }
 
@@ -244,37 +254,53 @@ wxLayoutWindow::OnMouse(int eventId, wxMouseEvent& event)
    switch ( eventId )
    {
       case WXLOWIN_MENU_MOUSEMOVE:
-         // 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)
+            // 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)
             {
-               const wxString &label = u->GetLabel();
-               if(label.Length())
-                  m_StatusBar->SetStatusText(label,
-                                             m_StatusFieldLabel);
+               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);
+               }
             }
-         }
-         else
-         {
-            if(m_HandCursor)
-               SetCursor(wxCURSOR_IBEAM);
-            m_HandCursor = FALSE;
-            if(m_StatusBar && m_StatusFieldLabel != -1)
-               m_StatusBar->SetStatusText("", m_StatusFieldLabel);
          }
 
          // selecting?
          if ( event.LeftIsDown() )
          {
-            wxASSERT_MSG( m_Selecting, "should be set in OnMouseLeftDown" );
-
-            m_llist->ContinueSelection(cursorPos, m_ClickPosition);
-            DoPaint();  // TODO: we don't have to redraw everything!
+            // 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);
+               DoPaint();  // TODO: we don't have to redraw everything!
+            }
          }
 
          if ( u )
@@ -287,12 +313,22 @@ wxLayoutWindow::OnMouse(int eventId, wxMouseEvent& event)
       case WXLOWIN_MENU_LDOWN:
          {
              // always move cursor to mouse click:
-             m_llist->MoveCursorTo(cursorPos);
+//             if ( obj )
+             {
+                // we have found the real position
+                m_llist->MoveCursorTo(cursorPos);
+             }
+//             else
+//             {
+//                // click beyond the end of the text
+//                m_llist->MoveCursorToEnd();
+//             }
 
              // clicking a mouse removes the selection
              if ( m_llist->HasSelection() )
              {
                 m_llist->DiscardSelection();
+                m_Selecting = false;
                 DoPaint();     // TODO: we don't have to redraw everything!
              }
 
@@ -307,19 +343,17 @@ wxLayoutWindow::OnMouse(int eventId, wxMouseEvent& event)
 
              if(m_CursorVisibility == -1)
                 m_CursorVisibility = 1;
+#ifdef WXLAYOUT_USE_CARET
+             if ( m_CursorVisibility == 1 )
+                GetCaret()->Show();
+#endif // WXLAYOUT_USE_CARET
 
-             if(m_CursorVisibility != 0)
+             if(m_CursorVisibility)
              {
-                // draw a thick cursor for    editable windows with focus
+                // draw a thick cursor for editable windows with focus
                 m_llist->DrawCursor(dc, m_HaveFocus && IsEditable(), offset);
              }
 
-             // VZ: this should be unnecessary because mouse can only click on a
-             //     visible part of the canvas
-#if 0
-             ScrollToCursor();
-#endif // 0
-
 #ifdef __WXGTK__
              DoPaint(); // DoPaint suppresses flicker under GTK
 #endif // wxGTK
@@ -340,8 +374,8 @@ wxLayoutWindow::OnMouse(int eventId, wxMouseEvent& event)
          }
          break;
 
-      case WXLOWIN_MENU_RCLICK:
-         // remove the selection if mouse click is outside it (TODO)
+      case WXLOWIN_MENU_MDOWN:
+         Paste(TRUE);
          break;
 
       case WXLOWIN_MENU_DBLCLICK:
@@ -351,7 +385,7 @@ wxLayoutWindow::OnMouse(int eventId, wxMouseEvent& event)
          m_llist->StartSelection();
          m_llist->MoveCursorWord(1, false);
          m_llist->EndSelection();
-
+         m_Selecting = false;
          DoPaint();     // TODO: we don't have to redraw everything!
          break;
    }
@@ -379,8 +413,7 @@ wxLayoutWindow::OnMouse(int eventId, wxMouseEvent& event)
       }
    }
 
-   if( u )
-      u->DecRef();
+   if( u ) u->DecRef();
 }
 
 // ----------------------------------------------------------------------------
@@ -391,6 +424,7 @@ void
 wxLayoutWindow::OnChar(wxKeyEvent& event)
 {
    int keyCode = event.KeyCode();
+   bool ctrlDown = event.ControlDown();
 
 #ifdef WXLAYOUT_DEBUG
    if(keyCode == WXK_F1)
@@ -400,34 +434,51 @@ wxLayoutWindow::OnChar(wxKeyEvent& event)
    }
 #endif
 
-   wxASSERT_MSG( !m_Selecting || event.ShiftDown(),
-                 "m_Selecting is normally reset in OnKeyUp() when Shift "
-                 "goes up!" );
-
-   if ( !m_Selecting && m_llist->HasSelection() )
+   // Force m_Selecting to be false if shift is no longer
+   // pressed. OnKeyUp() cannot catch all Shift-Up events.
+   if(m_Selecting && !event.ShiftDown())
    {
-      // pressing any non-arrow key replaces the selection
-      if ( !IsDirectionKey(keyCode) )
-      {
-         m_llist->DeleteSelection();
-      }
-      else if ( !event.ShiftDown() )
-      {
-         m_llist->DiscardSelection();
-      }
+      m_Selecting = false;
+      m_llist->EndSelection();
    }
-
+   
+   // 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;
+   }
+   
    // <Shift>+<arrow> starts selection
-   if ( event.ShiftDown() && IsDirectionKey(keyCode) )
+   if ( IsDirectionKey(keyCode) )
    {
-      if ( !m_Selecting )
+      if ( m_Selecting )
+      {
+         // just continue the old selection
+         if( event.ShiftDown() )
+            m_llist->ContinueSelection();
+         else
+         {
+            m_llist->DiscardSelection();
+            m_Selecting = false;
+         }
+      }
+      else if( event.ShiftDown() )
       {
          m_Selecting = true;
          m_llist->StartSelection();
       }
-      //else: just continue the old selection
+      
    }
-
+   
    // If needed, make cursor visible:
    if(m_CursorVisibility == -1)
       m_CursorVisibility = 1;
@@ -437,7 +488,6 @@ wxLayoutWindow::OnChar(wxKeyEvent& event)
       cursor, etc. It's default will process all keycodes causing
       modifications to the buffer, but only if editing is allowed.
    */
-   bool ctrlDown = event.ControlDown();
    switch(keyCode)
    {
    case WXK_RIGHT:
@@ -472,7 +522,7 @@ wxLayoutWindow::OnChar(wxKeyEvent& event)
       break;
    case WXK_END:
       if ( ctrlDown )
-         m_llist->MoveCursorTo(m_llist->GetSize());
+         m_llist->MoveCursorToEnd();
       else
          m_llist->MoveCursorToEndOfLine();
       break;
@@ -486,7 +536,7 @@ wxLayoutWindow::OnChar(wxKeyEvent& event)
       else if( IsEditable() )
       {
          /* First, handle control keys */
-         if(event.ControlDown() && ! event.AltDown())
+         if(ctrlDown && ! event.AltDown())
          {
             switch(keyCode)
             {
@@ -494,8 +544,12 @@ wxLayoutWindow::OnChar(wxKeyEvent& event)
                Copy();
                break;
             case WXK_DELETE :
+               if(! deletedSelection)
+                  m_llist->DeleteWord();
+               break;
             case 'd':
-               m_llist->Delete(1);
+               if(! deletedSelection) // already done
+                  m_llist->Delete(1);
                break;
             case 'y':
                m_llist->DeleteLines(1);
@@ -550,17 +604,32 @@ wxLayoutWindow::OnChar(wxKeyEvent& event)
                if(event.ShiftDown())
                   Cut();
                else
-                  m_llist->Delete(1);
+                  if(! deletedSelection)
+                     m_llist->Delete(1);
                break;
             case WXK_BACK: // backspace
-               if(m_llist->MoveCursorHorizontally(-1))
-                  m_llist->Delete(1);
+               if(! deletedSelection)
+                  if(m_llist->MoveCursorHorizontally(-1))
+                     m_llist->Delete(1);
                break;
             case WXK_RETURN:
                if(m_WrapMargin > 0)
                   m_llist->WrapLine(m_WrapMargin);
                m_llist->LineBreak();
                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));
+               }
+               break;
+
             default:
                if((!(event.ControlDown() || event.AltDown() || event.MetaDown()))
                   && (keyCode < 256 && keyCode >= 32)
@@ -622,19 +691,10 @@ wxLayoutWindow::ScrollToCursor(void)
    WXLO_DEBUG(("ScrollToCursor: ViewStart is %d/%d", x0, y0));
 
    // Get the size of the visible window:
-   GetClientSize(&x1,&y1);
+   GetClientSize(&x1, &y1);
 
-   // notice that the client size may be (0, 0)...
-   wxASSERT(x1 >= 0 && y1 >= 0);
-
-   // VZ: I think this is false - if you do it here, ResizeScrollbars() won't
-   //     call SetScrollbars() later
-#if 0
-   // As we have the values anyway, use them to avoid unnecessary scrollbar
-   // updates.
-   if(x1 > m_maxx) m_maxx = x1;
-   if(y1 > m_maxy) m_maxy = y1;
-#endif // 0
+   // update the cursor screen position
+   m_llist->Layout(dc);
 
    // Make sure that the scrollbars are at a position so that the cursor is
    // visible if we are editing
@@ -680,12 +740,13 @@ void
 wxLayoutWindow::DoPaint(const wxRect *updateRect)
 {
 #ifdef __WXGTK__
+   // Calling Refresh() causes bad flicker under wxGTK!!!
    InternalPaint(updateRect);
-#else // Causes bad flicker under wxGTK!!!
+#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);
-
-   if ( !::UpdateWindow(GetHwnd()) )
-      wxLogLastError("UpdateWindow");
 #endif
 }
 
@@ -724,6 +785,7 @@ wxLayoutWindow::InternalPaint(const wxRect *updateRect)
       m_llist->Layout(dc);
       ResizeScrollbars();
    }
+
    /* 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)
@@ -739,7 +801,7 @@ wxLayoutWindow::InternalPaint(const wxRect *updateRect)
    }
 
    m_memDC->SetDeviceOrigin(0,0);
-   m_memDC->SetBrush(wxBrush(m_llist->GetDefaultStyleInfo().GetBGColour(),wxSOLID));
+   m_memDC->SetBackground(wxBrush(m_llist->GetDefaultStyleInfo().GetBGColour(),wxSOLID));
    m_memDC->SetPen(wxPen(m_llist->GetDefaultStyleInfo().GetBGColour(),
                          0,wxTRANSPARENT));
    m_memDC->SetLogicalFunction(wxCOPY);
@@ -815,7 +877,7 @@ wxLayoutWindow::InternalPaint(const wxRect *updateRect)
 
 #ifdef WXLAYOUT_USE_CARET
    // show the caret back after everything is redrawn
-   m_caret->Show();
+   GetCaret()->Show();
 #endif // WXLAYOUT_USE_CARET
 
    ResetDirty();
@@ -842,9 +904,12 @@ wxLayoutWindow::InternalPaint(const wxRect *updateRect)
 void
 wxLayoutWindow::OnSize(wxSizeEvent &event)
 {
-    ResizeScrollbars();
+   if ( m_llist )
+   {
+      ResizeScrollbars();
+   }
 
-    event.Skip();
+   event.Skip();
 }
 
 // change the range and position of scrollbars
@@ -859,9 +924,9 @@ wxLayoutWindow::ResizeScrollbars(bool exact)
 
    // in the absence of scrollbars we should compare with the client size
    if ( !m_hasHScrollbar )
-      m_maxx = size.x - WXLO_ROFFSET;
+      m_maxx = size.x;// - WXLO_ROFFSET;
    if ( !m_hasVScrollbar )
-      m_maxy = size.y - WXLO_BOFFSET;
+      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...
@@ -888,18 +953,27 @@ wxLayoutWindow::ResizeScrollbars(bool exact)
       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 ( m_hasHScrollbar && (max.x < size.x) )
+      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 < size.y) )
+      if ( m_hasVScrollbar && (max.y < m_maxy) )
       {
          // remove the vertical scrollbar
          SetScrollbars(-1, 0, -1, 0, -1, 0, true);
@@ -911,14 +985,19 @@ wxLayoutWindow::ResizeScrollbars(bool exact)
 
 // ----------------------------------------------------------------------------
 // clipboard operations
+//
 // ----------------------------------------------------------------------------
 
 void
-wxLayoutWindow::Paste(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() ))
@@ -926,7 +1005,7 @@ wxLayoutWindow::Paste(void)
          wxTheClipboard->GetData(&wxldo);
          {
          }
-         //FIXME: missing functionality m_llist->Insert(wxldo.GetList());
+         //FIXME: missing functionality  m_llist->Insert(wxldo.GetList());
       }
       else
 #endif
@@ -941,17 +1020,6 @@ wxLayoutWindow::Paste(void)
       }
       wxTheClipboard->Close();
    }
-
-#if 0
-   /* My attempt to get the primary selection, but it does not
-      work. :-( */
-   if(text.Length() == 0)
-   {
-      wxTextCtrl tmp_tctrl(this,-1);
-      tmp_tctrl.Paste();
-      text += tmp_tctrl.GetValue();
-   }
-#endif
 }
 
 bool
@@ -1089,28 +1157,21 @@ void wxLayoutWindow::OnMenu(wxCommandEvent& event)
    switch (event.GetId())
    {
    case WXLOWIN_MENU_LARGER:
-      m_llist->SetFontLarger();
-      break;
+      m_llist->SetFontLarger(); DoPaint(); break;
    case WXLOWIN_MENU_SMALLER:
-      m_llist->SetFontSmaller();
-      break;
-
+      m_llist->SetFontSmaller(); DoPaint(); break;
    case WXLOWIN_MENU_UNDERLINE:
-      m_llist->ToggleFontUnderline();
-      break;
+      m_llist->ToggleFontUnderline(); DoPaint(); break;
    case WXLOWIN_MENU_BOLD:
-      m_llist->ToggleFontWeight();
-      break;
+      m_llist->ToggleFontWeight(); DoPaint(); break;
    case WXLOWIN_MENU_ITALICS:
-      m_llist->ToggleFontItalics();
-      break;
-
+      m_llist->ToggleFontItalics(); DoPaint(); break;
    case WXLOWIN_MENU_ROMAN:
-      m_llist->SetFontFamily(wxROMAN); break;
+      m_llist->SetFontFamily(wxROMAN); DoPaint(); break;
    case WXLOWIN_MENU_TYPEWRITER:
-      m_llist->SetFontFamily(wxFIXED); break;
+      m_llist->SetFontFamily(wxFIXED); DoPaint(); break;
    case WXLOWIN_MENU_SANSSERIF:
-      m_llist->SetFontFamily(wxSWISS); break;
+      m_llist->SetFontFamily(wxSWISS); DoPaint(); break;
    }
 }
 
@@ -1123,6 +1184,7 @@ wxLayoutWindow::OnSetFocus(wxFocusEvent &ev)
 {
    m_HaveFocus = true;
    ev.Skip();
+   DoPaint(); // cursor must change
 }
 
 void
@@ -1130,6 +1192,7 @@ wxLayoutWindow::OnKillFocus(wxFocusEvent &ev)
 {
    m_HaveFocus = false;
    ev.Skip();
+   DoPaint();// cursor must change
 }
 
 // ----------------------------------------------------------------------------