Added my wxWindows based layout engine to the repository.

It arranges text and graphics for display on a wxDC. This code is licensed under the LGPL. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@157 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1998-06-29 12:44:36 +00:00
parent 8f79098a04
commit a5f81d8c07
13 changed files with 2800 additions and 0 deletions
--- a/user/wxLayout/wxlwindow.cpp
+++ b/user/wxLayout/wxlwindow.cpp
@@ -0,0 +1,149 @@
+/*-*- c++ -*-********************************************************
+ * wxLwindow.h : a scrolled Window for displaying/entering rich text*
+ *                                                                  *
+ * (C) 1998 by Karsten Ball<6C>der (Ballueder@usa.net)                 *
+ *                                                                  *
+ * $Id$
+ *******************************************************************/
+
+#ifdef __GNUG__
+#   pragma implementation "wxlwindow.h"
+#endif
+
+#include   "wxlwindow.h"
+
+#define   VAR(x)   cout << #x"=" << x << endl;
+
+BEGIN_EVENT_TABLE(wxLayoutWindow,wxScrolledWindow)
+   EVT_PAINT  (wxLayoutWindow::OnPaint)
+   EVT_CHAR   (wxLayoutWindow::OnChar)
+   EVT_LEFT_DOWN(wxLayoutWindow::OnMouse)
+END_EVENT_TABLE()
+
+wxLayoutWindow::wxLayoutWindow(wxWindow *parent)
+   : wxScrolledWindow(parent)
+{
+   m_ScrollbarsSet = false;
+   m_EventId = 0;
+}
+
+void
+wxLayoutWindow::OnMouse(wxMouseEvent& event)
+{
+   if(m_EventId == 0) // nothing to do
+      return;
+   
+   m_FindPos.x = event.GetX();
+   m_FindPos.y = event.GetY();
+   m_FoundObject = NULL;
+
+#ifdef   DEBUG
+   cerr << "OnMouse: " << m_FindPos.x << ',' << m_FindPos.y << endl;
+#endif
+   Refresh();
+   if(m_FoundObject)
+   {
+      if(m_EventId)
+      {
+         wxCommandEvent commandEvent(wxEVENT_TYPE_MENU_COMMAND, m_EventId);
+         commandEvent.SetEventObject( this );
+         GetEventHandler()->ProcessEvent(commandEvent);
+      }
+   }
+}
+
+/*
+ * some simple keyboard handling
+ */
+void
+wxLayoutWindow::OnChar(wxKeyEvent& event)
+{
+   long keyCode = event.KeyCode();
+
+   switch(event.KeyCode())
+   {
+      case WXK_RIGHT:
+      m_llist.MoveCursor(1);
+      break;
+   case WXK_LEFT:
+      m_llist.MoveCursor(-1);
+      break;
+   case WXK_UP:
+      m_llist.MoveCursor(0,-1);
+      break;
+   case WXK_DOWN:
+      m_llist.MoveCursor(0,1);
+      break;
+   case WXK_PRIOR:
+      m_llist.MoveCursor(0,-20);
+      break;
+   case WXK_NEXT:
+      m_llist.MoveCursor(0,20);
+      break;
+   case WXK_DELETE :
+      m_llist.Delete(1);
+      break;
+   case WXK_BACK: // backspace
+      m_llist.MoveCursor(-1);
+      m_llist.Delete(1);
+      break;
+   case WXK_RETURN:
+      m_llist.LineBreak();
+      break;
+#ifdef DEBUG   
+   case WXK_F1:
+      m_llist.Debug();
+      break;
+#endif 
+   default:
+      if(keyCode < 256 && keyCode >= 32)
+      {
+         wxString tmp;
+         tmp += keyCode;
+         m_llist.Insert(tmp);
+      }
+      break;
+   }
+   Refresh();
+   UpdateScrollbars();
+}
+
+void
+wxLayoutWindow::OnPaint( wxPaintEvent &WXUNUSED(event)w)  // or: OnDraw(wxDC& dc)
+{
+   wxPaintDC dc( this );  // only when used as OnPaint for OnDraw we
+   PrepareDC( dc );       // can skip the first two lines
+
+   if(m_EventId) // look for keyclicks
+      m_FoundObject = m_llist.Draw(dc,true,m_FindPos);
+   else
+      m_llist.Draw(dc);
+   if(! m_ScrollbarsSet)
+   {
+      m_ScrollbarsSet = true; // avoid recursion
+      UpdateScrollbars();
+   }
+}
+
+void
+wxLayoutWindow::UpdateScrollbars(void)
+{
+   CoordType
+      max_x, max_y, lineHeight;
+   
+   m_llist.GetSize(&max_x, &max_y, &lineHeight);
+   SetScrollbars(10, lineHeight, max_x/10+1, max_y/lineHeight+1);
+   EnableScrolling(true,true);
+}
+
+void
+wxLayoutWindow::Print(void)
+{
+   wxPostScriptDC   dc("layout.ps",true,this);
+   if (dc.Ok() && dc.StartDoc((char *)_("Printing message...")))
+   {
+      //dc.SetUserScale(1.0, 1.0);
+      m_llist.Draw(dc);
+      dc.EndDoc();
+   }
+}