src/motif/statbmp.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        statbmp.cpp
   3 // Purpose:     wxStaticBitmap
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "statbmp.h"
  14 #endif
  15
  16 #include "wx/defs.h"
  17
  18 #include "wx/statbmp.h"
  19
  20 #ifdef __VMS__
  21 #pragma message disable nosimpint
  22 #endif
  23 #include <Xm/Xm.h>
  24 #include <Xm/Label.h>
  25 #include <Xm/LabelG.h>
  26 #ifdef __VMS__
  27 #pragma message enable nosimpint
  28 #endif
  29
  30 #include "wx/motif/private.h"
  31
  32 IMPLEMENT_DYNAMIC_CLASS(wxStaticBitmap, wxControl)
  33
  34 /*
  35  * wxStaticBitmap
  36  */
  37
  38 bool wxStaticBitmap::Create(wxWindow *parent, wxWindowID id,
  39            const wxBitmap& bitmap,
  40            const wxPoint& pos,
  41            const wxSize& size,
  42            long style,
  43            const wxString& name)
  44 {
  45     if( !CreateControl( parent, id, pos, size, style, wxDefaultValidator,
  46                         name ) )
  47         return false;
  48
  49     m_messageBitmap = bitmap;
  50     m_messageBitmapOriginal = bitmap;
  51
  52     Widget parentWidget = (Widget) parent->GetClientWidget();
  53
  54     m_mainWidget = (WXWidget) XtVaCreateManagedWidget ("staticBitmap",
  55 #if USE_GADGETS
  56                     xmLabelGadgetClass, parentWidget,
  57 #else
  58                     xmLabelWidgetClass, parentWidget,
  59 #endif
  60                     XmNalignment, XmALIGNMENT_BEGINNING,
  61                     NULL);
  62
  63     ChangeBackgroundColour ();
  64
  65     DoSetBitmap();
  66
  67     ChangeFont(FALSE);
  68
  69     wxSize actualSize(size);
  70     // work around the cases where the bitmap is a wxNull(Icon/Bitmap)
  71     if (actualSize.x == -1)
  72         actualSize.x = bitmap.GetWidth() ? bitmap.GetWidth() : 1;
  73     if (actualSize.y == -1)
  74         actualSize.y = bitmap.GetHeight() ? bitmap.GetHeight() : 1;
  75     AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
  76                   pos.x, pos.y, actualSize.x, actualSize.y);
  77
  78     return true;
  79 }
  80
  81 wxStaticBitmap::~wxStaticBitmap()
  82 {
  83     SetBitmap(wxNullBitmap);
  84 }
  85
  86 void wxStaticBitmap::DoSetBitmap()
  87 {
  88     Widget widget = (Widget) m_mainWidget;
  89     int x, y, w1, h1, w2, h2;
  90
  91     GetPosition(&x, &y);
  92
  93     if (m_messageBitmapOriginal.Ok())
  94     {
  95         w2 = m_messageBitmapOriginal.GetWidth();
  96         h2 = m_messageBitmapOriginal.GetHeight();
  97
  98         Pixmap pixmap;
  99
 100         // Must re-make the bitmap to have its transparent areas drawn
 101         // in the current widget background colour.
 102         if (m_messageBitmapOriginal.GetMask())
 103         {
 104             int backgroundPixel;
 105             XtVaGetValues( widget, XmNbackground, &backgroundPixel,
 106                 NULL);
 107
 108             wxColour col;
 109             col.SetPixel(backgroundPixel);
 110
 111             wxBitmap newBitmap = wxCreateMaskedBitmap(m_messageBitmapOriginal, col);
 112             m_messageBitmap = newBitmap;
 113
 114             pixmap = (Pixmap) m_messageBitmap.GetDrawable();
 115         }
 116         else
 117         {
 118             m_bitmapCache.SetBitmap( m_messageBitmap );
 119             pixmap = (Pixmap)m_bitmapCache.GetLabelPixmap(widget);
 120         }
 121
 122         XtVaSetValues (widget,
 123             XmNlabelPixmap, pixmap,
 124             XmNlabelType, XmPIXMAP,
 125             NULL);
 126         GetSize(&w1, &h1);
 127
 128         if (! (w1 == w2) && (h1 == h2))
 129             SetSize(x, y, w2, h2);
 130     }
 131     else
 132     {
 133         // Null bitmap: must not use current pixmap
 134         // since it is no longer valid.
 135         XtVaSetValues (widget,
 136             XmNlabelType, XmSTRING,
 137             XmNlabelPixmap, XmUNSPECIFIED_PIXMAP,
 138             NULL);
 139     }
 140 }
 141
 142 void wxStaticBitmap::SetBitmap(const wxBitmap& bitmap)
 143 {
 144     m_messageBitmap = bitmap;
 145     m_messageBitmapOriginal = bitmap;
 146
 147     DoSetBitmap();
 148 }
 149
 150 void wxStaticBitmap::ChangeBackgroundColour()
 151 {
 152     wxWindow::ChangeBackgroundColour();
 153
 154     // must recalculate the background colour
 155     m_bitmapCache.SetColoursChanged();
 156     DoSetBitmap();
 157 }
 158
 159 void wxStaticBitmap::ChangeForegroundColour()
 160 {
 161     m_bitmapCache.SetColoursChanged();
 162     wxWindow::ChangeForegroundColour();
 163 }
 164