user/wxLayout/wxlwindow.cpp

   1 /*-*- c++ -*-********************************************************
   2  * wxLwindow.h : a scrolled Window for displaying/entering rich text*
   3  *                                                                  *
   4  * (C) 1998 by Karsten Ballüder (Ballueder@usa.net)                 *
   5  *                                                                  *
   6  * $Id$
   7  *******************************************************************/
   8
   9 #ifdef __GNUG__
  10 #   pragma implementation "wxlwindow.h"
  11 #endif
  12
  13 #include   "wxlwindow.h"
  14
  15 #define   VAR(x)   cout << #x"=" << x << endl;
  16
  17 BEGIN_EVENT_TABLE(wxLayoutWindow,wxScrolledWindow)
  18    EVT_PAINT  (wxLayoutWindow::OnPaint)
  19    EVT_CHAR   (wxLayoutWindow::OnChar)
  20    EVT_LEFT_DOWN(wxLayoutWindow::OnMouse)
  21 END_EVENT_TABLE()
  22
  23 wxLayoutWindow::wxLayoutWindow(wxWindow *parent)
  24    : wxScrolledWindow(parent)
  25 {
  26    m_ScrollbarsSet = false;
  27    m_EventId = 0;
  28 }
  29
  30 void
  31 wxLayoutWindow::OnMouse(wxMouseEvent& event)
  32 {
  33    if(m_EventId == 0) // nothing to do
  34       return;
  35
  36    m_FindPos.x = event.GetX();
  37    m_FindPos.y = event.GetY();
  38    m_FoundObject = NULL;
  39
  40 #ifdef   DEBUG
  41    cerr << "OnMouse: " << m_FindPos.x << ',' << m_FindPos.y << endl;
  42 #endif
  43    Refresh();
  44    if(m_FoundObject)
  45    {
  46       if(m_EventId)
  47       {
  48          wxCommandEvent commandEvent(wxEVENT_TYPE_MENU_COMMAND, m_EventId);
  49          commandEvent.SetEventObject( this );
  50          GetEventHandler()->ProcessEvent(commandEvent);
  51       }
  52    }
  53 }
  54
  55 /*
  56  * some simple keyboard handling
  57  */
  58 void
  59 wxLayoutWindow::OnChar(wxKeyEvent& event)
  60 {
  61    long keyCode = event.KeyCode();
  62
  63    switch(event.KeyCode())
  64    {
  65       case WXK_RIGHT:
  66       m_llist.MoveCursor(1);
  67       break;
  68    case WXK_LEFT:
  69       m_llist.MoveCursor(-1);
  70       break;
  71    case WXK_UP:
  72       m_llist.MoveCursor(0,-1);
  73       break;
  74    case WXK_DOWN:
  75       m_llist.MoveCursor(0,1);
  76       break;
  77    case WXK_PRIOR:
  78       m_llist.MoveCursor(0,-20);
  79       break;
  80    case WXK_NEXT:
  81       m_llist.MoveCursor(0,20);
  82       break;
  83    case WXK_DELETE :
  84       m_llist.Delete(1);
  85       break;
  86    case WXK_BACK: // backspace
  87       m_llist.MoveCursor(-1);
  88       m_llist.Delete(1);
  89       break;
  90    case WXK_RETURN:
  91       m_llist.LineBreak();
  92       break;
  93 #ifdef DEBUG
  94    case WXK_F1:
  95       m_llist.Debug();
  96       break;
  97 #endif
  98    default:
  99       if(keyCode < 256 && keyCode >= 32)
 100       {
 101          wxString tmp;
 102          tmp += keyCode;
 103          m_llist.Insert(tmp);
 104       }
 105       break;
 106    }
 107    Refresh();
 108    UpdateScrollbars();
 109 }
 110
 111 void
 112 wxLayoutWindow::OnPaint( wxPaintEvent &WXUNUSED(event)w)  // or: OnDraw(wxDC& dc)
 113 {
 114    wxPaintDC dc( this );  // only when used as OnPaint for OnDraw we
 115    PrepareDC( dc );       // can skip the first two lines
 116
 117    if(m_EventId) // look for keyclicks
 118       m_FoundObject = m_llist.Draw(dc,true,m_FindPos);
 119    else
 120       m_llist.Draw(dc);
 121    if(! m_ScrollbarsSet)
 122    {
 123       m_ScrollbarsSet = true; // avoid recursion
 124       UpdateScrollbars();
 125    }
 126 }
 127
 128 void
 129 wxLayoutWindow::UpdateScrollbars(void)
 130 {
 131    CoordType
 132       max_x, max_y, lineHeight;
 133
 134    m_llist.GetSize(&max_x, &max_y, &lineHeight);
 135    SetScrollbars(10, lineHeight, max_x/10+1, max_y/lineHeight+1);
 136    EnableScrolling(true,true);
 137 }
 138
 139 void
 140 wxLayoutWindow::Print(void)
 141 {
 142    wxPostScriptDC   dc("layout.ps",true,this);
 143    if (dc.Ok() && dc.StartDoc((char *)_("Printing message...")))
 144    {
 145       //dc.SetUserScale(1.0, 1.0);
 146       m_llist.Draw(dc);
 147       dc.EndDoc();
 148    }
 149 }