src/motif/bmpmotif.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.cpp
   3 // Purpose:     wxBitmap
   4 // Author:      Julian Smart, originally in bitmap.cpp
   5 // Modified by:
   6 // Created:     25/03/2003
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "bmpmotif.h"
  14 #endif
  15
  16 #ifdef __VMS
  17 #define XtParent XTPARENT
  18 #endif
  19
  20 #include "wx/defs.h"
  21 #include "wx/motif/bmpmotif.h"
  22
  23 #ifdef __VMS__
  24 #pragma message disable nosimpint
  25 #endif
  26 #include <Xm/Xm.h>
  27 #ifdef __VMS__
  28 #pragma message enable nosimpint
  29 #endif
  30
  31 #include "wx/motif/private.h"
  32
  33 #if wxHAVE_LIB_XPM
  34     #include <X11/xpm.h>
  35 #endif
  36 #include <math.h>
  37
  38 Pixmap XCreateInsensitivePixmap( Display *display, Pixmap pixmap );
  39
  40 wxBitmapCache::~wxBitmapCache()
  41 {
  42     if( m_display )
  43     {
  44         Screen* screen = DefaultScreenOfDisplay( (Display*)m_display );
  45
  46         if( m_labelPixmap )
  47             XmDestroyPixmap( screen, (Pixmap)m_labelPixmap );
  48
  49         if( m_armPixmap )
  50             XmDestroyPixmap( screen, (Pixmap)m_armPixmap );
  51
  52         if( m_insensPixmap )
  53             XmDestroyPixmap( screen, (Pixmap)m_insensPixmap );
  54
  55     }
  56
  57     if( m_image )
  58     {
  59         XmUninstallImage( (XImage*)m_image );
  60         XtFree( (char*)(XImage*)m_image );
  61     }
  62 }
  63
  64 void wxBitmapCache::SetBitmap( const wxBitmap& bitmap )
  65 {
  66     if( m_bitmap != bitmap )
  67     {
  68         InvalidateCache();
  69         m_bitmap = bitmap;
  70
  71         if( m_image )
  72         {
  73             XmUninstallImage( (XImage*)m_image );
  74             XtFree( (char*)(XImage*)m_image );
  75             m_image = (WXImage*)NULL;
  76         }
  77     }
  78 }
  79
  80 void wxBitmapCache::InvalidateCache()
  81 {
  82     m_recalcPixmaps.label  = true;
  83     m_recalcPixmaps.arm    = true;
  84     m_recalcPixmaps.insens = true;
  85 }
  86
  87 void wxBitmapCache::SetColoursChanged()
  88 {
  89     InvalidateCache();
  90 }
  91
  92 void wxBitmapCache::CreateImageIfNeeded( WXWidget w )
  93 {
  94     if( m_image )
  95         return;
  96
  97     m_display = w ?
  98                 (WXDisplay*)XtDisplay( (Widget)w ) :
  99                 (WXDisplay*)wxGetDisplay();
 100
 101     XImage *ximage = XGetImage( (Display*)m_display,
 102                                 (Drawable)m_bitmap.GetPixmap(),
 103                                 0, 0,
 104                                 m_bitmap.GetWidth(), m_bitmap.GetHeight(),
 105                                 AllPlanes, ZPixmap );
 106
 107     m_image = (WXImage*)ximage;
 108
 109     if( m_image )
 110     {
 111         char tmp[128];
 112         sprintf( tmp, "Im%x", (unsigned int)ximage );
 113         XmInstallImage( ximage, tmp );
 114     }
 115 }
 116
 117 WXPixmap wxBitmapCache::GetLabelPixmap( WXWidget w )
 118 {
 119     if( m_labelPixmap && !m_recalcPixmaps.label )
 120         return m_labelPixmap;
 121
 122     CreateImageIfNeeded( w );
 123
 124     Screen* screen = DefaultScreenOfDisplay( (Display*)m_display );
 125
 126     if( m_labelPixmap )
 127         XmDestroyPixmap( screen, (Pixmap)m_labelPixmap );
 128
 129     if( !m_image )
 130         return (WXPixmap)NULL;
 131
 132     char tmp[128];
 133     sprintf( tmp, "Im%x", (unsigned int)m_image );
 134
 135     Pixel fg, bg;
 136     Widget widget = (Widget)w;
 137
 138     while( XmIsGadget( widget ) )
 139         widget = XtParent( widget );
 140     XtVaGetValues( widget,
 141                    XmNbackground, &bg,
 142                    XmNforeground, &fg,
 143                    NULL );
 144
 145     m_labelPixmap = (WXPixmap)XmGetPixmap( screen, tmp, fg, bg );
 146
 147     m_recalcPixmaps.label = !m_labelPixmap;
 148     return m_labelPixmap;
 149 }
 150
 151 WXPixmap wxBitmapCache::GetArmPixmap( WXWidget w )
 152 {
 153     if( m_armPixmap && !m_recalcPixmaps.arm )
 154         return m_armPixmap;
 155
 156     CreateImageIfNeeded( w );
 157
 158     Screen* screen = DefaultScreenOfDisplay( (Display*)m_display );
 159
 160     if( m_armPixmap )
 161         XmDestroyPixmap( screen, (Pixmap)m_armPixmap );
 162
 163     if( !m_image )
 164         return (WXPixmap)NULL;
 165
 166     char tmp[128];
 167     sprintf( tmp, "Im%x", (unsigned int)m_image );
 168
 169     Pixel fg, bg;
 170     Widget widget = (Widget) w;
 171
 172     XtVaGetValues( widget, XmNarmColor, &bg, NULL );
 173     while( XmIsGadget( widget ) )
 174         widget = XtParent( widget );
 175     XtVaGetValues( widget, XmNforeground, &fg, NULL );
 176
 177     m_armPixmap = (WXPixmap)XmGetPixmap( screen, tmp, fg, bg );
 178
 179     m_recalcPixmaps.arm = !m_armPixmap;
 180     return m_armPixmap;
 181 }
 182
 183 WXPixmap wxBitmapCache::GetInsensPixmap( WXWidget w )
 184 {
 185     if( m_insensPixmap && !m_recalcPixmaps.insens )
 186         return m_insensPixmap;
 187
 188     CreateImageIfNeeded( w );
 189
 190     Screen* screen = DefaultScreenOfDisplay( (Display*)m_display );
 191
 192     if( m_insensPixmap )
 193         XmDestroyPixmap( screen, (Pixmap)m_insensPixmap );
 194
 195     if( !m_image )
 196         return (WXPixmap)NULL;
 197
 198     m_insensPixmap =
 199         (WXPixmap)XCreateInsensitivePixmap( (Display*)m_display,
 200                                             (Pixmap)m_bitmap.GetPixmap() );
 201
 202     m_recalcPixmaps.insens = !m_insensPixmap;
 203     return m_insensPixmap;
 204 }