utils/ogl/src/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.cpp
   3 // Purpose:     Bitmap shape class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     12/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "bitmap.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include <wx/wxprec.h>
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include <wx/wx.h>
  25 #endif
  26
  27 #ifdef PROLOGIO
  28 #include <wx/wxexpr.h>
  29 #endif
  30
  31 #include "basic.h"
  32 #include "basicp.h"
  33 #include "canvas.h"
  34 #include "bitmap.h"
  35 #include "misc.h"
  36
  37 /*
  38  * Bitmap object
  39  *
  40  */
  41
  42 IMPLEMENT_DYNAMIC_CLASS(wxBitmapShape, wxShape)
  43
  44 wxBitmapShape::wxBitmapShape():wxRectangleShape(100.0, 50.0)
  45 {
  46   m_filename = "";
  47 }
  48
  49 wxBitmapShape::~wxBitmapShape()
  50 {
  51 }
  52
  53 void wxBitmapShape::OnDraw(wxDC& dc)
  54 {
  55   if (!m_bitmap.Ok())
  56     return;
  57
  58   wxMemoryDC tempDC;
  59   tempDC.SelectObject(m_bitmap);
  60   float x, y;
  61   x = (long)(m_xpos - m_bitmap.GetWidth() / 2.0);
  62   y = (long)(m_ypos - m_bitmap.GetHeight() / 2.0);
  63   dc.Blit(x, y, m_bitmap.GetWidth(), m_bitmap.GetHeight(), &tempDC, 0, 0);
  64 }
  65
  66 void wxBitmapShape::SetSize(float w, float h, bool recursive)
  67 {
  68   if (m_bitmap.Ok())
  69   {
  70     w = m_bitmap.GetWidth();
  71     h = m_bitmap.GetHeight();
  72   }
  73
  74   SetAttachmentSize(w, h);
  75
  76   m_width = w;
  77   m_height = h;
  78   SetDefaultRegionSize();
  79 }
  80
  81 #ifdef PROLOGIO
  82 // Prolog database stuff
  83 char *wxBitmapShape::GetFunctor()
  84 {
  85   return "node_image";
  86 }
  87
  88 void wxBitmapShape::WritePrologAttributes(wxExpr *clause)
  89 {
  90   // Can't really save the bitmap; so instantiate the bitmap
  91   // at a higher level in the application, from a symbol library.
  92   wxRectangleShape::WritePrologAttributes(clause);
  93   clause->AddAttributeValueString("filename", m_filename);
  94 }
  95
  96 void wxBitmapShape::ReadPrologAttributes(wxExpr *clause)
  97 {
  98   wxRectangleShape::ReadPrologAttributes(clause);
  99   clause->GetAttributeValue("filename", m_filename);
 100 }
 101 #endif
 102
 103 // Does the copying for this object
 104 void wxBitmapShape::Copy(wxBitmapShape& copy)
 105 {
 106   wxRectangleShape::Copy(copy);
 107   copy.m_bitmap = m_bitmap;
 108   copy.SetFilename(m_filename);
 109 }
 110
 111 // Returns a new instance, and does the copy for this class. Define for each class.
 112 wxShape *wxBitmapShape::PrivateCopy()
 113 {
 114   wxBitmapShape *obj = new wxBitmapShape;
 115   Copy(*obj);
 116   return obj;
 117 }
 118
 119 void wxBitmapShape::SetBitmap(const wxBitmap& bm)
 120 {
 121   m_bitmap = bm;
 122   if (m_bitmap.Ok())
 123     SetSize(m_bitmap.GetWidth(), m_bitmap.GetHeight());
 124 }
 125
 126