src/motif/bmpbuttn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/motif/bmpbuttn.cpp
   3 // Purpose:     wxBitmapButton
   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 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/bmpbuttn.h"
  16
  17 #ifdef __VMS__
  18 #pragma message disable nosimpint
  19 #endif
  20 #include <Xm/PushBG.h>
  21 #include <Xm/PushB.h>
  22 #ifdef __VMS__
  23 #pragma message enable nosimpint
  24 #endif
  25
  26 #include "wx/motif/private.h"
  27
  28 // Implemented in button.cpp
  29 void wxButtonCallback (Widget w, XtPointer clientData, XtPointer ptr);
  30
  31 // Pixmap XCreateInsensitivePixmap( Display *display, Pixmap pixmap );
  32
  33 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton, wxButton)
  34
  35 wxBitmapButton::wxBitmapButton()
  36 {
  37     m_marginX = m_marginY = wxDEFAULT_BUTTON_MARGIN;
  38     m_insensPixmap = (WXPixmap) 0;
  39 }
  40
  41 bool wxBitmapButton::Create(wxWindow *parent, wxWindowID id,
  42                             const wxBitmap& bitmap,
  43                             const wxPoint& pos,
  44                             const wxSize& size, long style,
  45                             const wxValidator& validator,
  46                             const wxString& name)
  47 {
  48     if( !CreateControl( parent, id, pos, size, style, validator, name ) )
  49         return false;
  50     PreCreation();
  51
  52     m_bmpNormal = m_bmpNormalOriginal = bitmap;
  53     m_bmpSelected = m_bmpSelectedOriginal = bitmap;
  54
  55     Widget parentWidget = (Widget) parent->GetClientWidget();
  56
  57     /*
  58     * Patch Note (important)
  59     * There is no major reason to put a defaultButtonThickness here.
  60     * Not requesting it give the ability to put wxButton with a spacing
  61     * as small as requested. However, if some button become a DefaultButton,
  62     * other buttons are no more aligned -- This is why we set
  63     * defaultButtonThickness of ALL buttons belonging to the same wxPanel,
  64     * in the ::SetDefaultButton method.
  65     */
  66     Widget buttonWidget = XtVaCreateManagedWidget ("button",
  67
  68         // Gadget causes problems for default button operation.
  69 #if wxUSE_GADGETS
  70         xmPushButtonGadgetClass, parentWidget,
  71 #else
  72         xmPushButtonWidgetClass, parentWidget,
  73 #endif
  74         // See comment for wxButton::SetDefault
  75         // XmNdefaultButtonShadowThickness, 1,
  76         XmNrecomputeSize, False,
  77         NULL);
  78
  79     m_mainWidget = (WXWidget) buttonWidget;
  80
  81     XtAddCallback (buttonWidget,
  82                    XmNactivateCallback, (XtCallbackProc) wxButtonCallback,
  83                    (XtPointer) this);
  84
  85     wxSize best = m_bmpNormal.Ok() ? GetBestSize() : wxSize(30, 30);
  86     if( size.x != -1 ) best.x = size.x;
  87     if( size.y != -1 ) best.y = size.y;
  88
  89     PostCreation();
  90     DoSetBitmap();
  91
  92     AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
  93                   pos.x, pos.y, best.x, best.y);
  94
  95     return true;
  96 }
  97
  98 wxBitmapButton::~wxBitmapButton()
  99 {
 100     SetBitmapLabel(wxNullBitmap);
 101
 102     if (m_insensPixmap)
 103         XmDestroyPixmap (DefaultScreenOfDisplay ((Display*) GetXDisplay()),
 104                          (Pixmap) m_insensPixmap);
 105 }
 106
 107 void wxBitmapButton::SetBitmapLabel(const wxBitmap& bitmap)
 108 {
 109     m_bmpNormalOriginal = bitmap;
 110     m_bmpNormal = bitmap;
 111
 112     DoSetBitmap();
 113 }
 114
 115 void wxBitmapButton::SetBitmapSelected(const wxBitmap& sel)
 116 {
 117     m_bmpSelected = sel;
 118     m_bmpSelectedOriginal = sel;
 119
 120     DoSetBitmap();
 121 }
 122
 123 void wxBitmapButton::SetBitmapFocus(const wxBitmap& focus)
 124 {
 125     m_bmpFocus = focus;
 126     // Not used in Motif
 127 }
 128
 129 void wxBitmapButton::SetBitmapDisabled(const wxBitmap& disabled)
 130 {
 131     m_bmpDisabled = disabled;
 132     m_bmpDisabledOriginal = disabled;
 133
 134     DoSetBitmap();
 135 }
 136
 137 void wxBitmapButton::DoSetBitmap()
 138 {
 139     if (m_bmpNormalOriginal.Ok())
 140     {
 141         Pixmap pixmap = 0;
 142         Pixmap insensPixmap = 0;
 143         Pixmap armPixmap = 0;
 144
 145         // Must re-make the bitmap to have its transparent areas drawn
 146         // in the current widget background colour.
 147         if (m_bmpNormalOriginal.GetMask())
 148         {
 149             WXPixel backgroundPixel;
 150             XtVaGetValues((Widget) m_mainWidget,
 151                           XmNbackground, &backgroundPixel,
 152                           NULL);
 153
 154             wxColour col;
 155             col.SetPixel(backgroundPixel);
 156
 157             wxBitmap newBitmap =
 158                 wxCreateMaskedBitmap(m_bmpNormalOriginal, col);
 159             m_bmpNormal = newBitmap;
 160             m_bitmapCache.SetBitmap( m_bmpNormal );
 161
 162             pixmap = (Pixmap) m_bmpNormal.GetDrawable();
 163         }
 164         else
 165         {
 166             m_bitmapCache.SetBitmap( m_bmpNormal );
 167             pixmap = (Pixmap) m_bitmapCache.GetLabelPixmap(m_mainWidget);
 168         }
 169
 170         if (m_bmpDisabledOriginal.Ok())
 171         {
 172             if (m_bmpDisabledOriginal.GetMask())
 173             {
 174                 WXPixel backgroundPixel;
 175                 XtVaGetValues((Widget) m_mainWidget,
 176                               XmNbackground, &backgroundPixel,
 177                               NULL);
 178
 179                 wxColour col;
 180                 col.SetPixel(backgroundPixel);
 181
 182                 wxBitmap newBitmap =
 183                     wxCreateMaskedBitmap(m_bmpDisabledOriginal, col);
 184                 m_bmpDisabled = newBitmap;
 185
 186                 insensPixmap = (Pixmap) m_bmpDisabled.GetDrawable();
 187             }
 188             else
 189                 insensPixmap = (Pixmap) m_bitmapCache.GetInsensPixmap(m_mainWidget);
 190         }
 191         else
 192             insensPixmap = (Pixmap) m_bitmapCache.GetInsensPixmap(m_mainWidget);
 193
 194         // Now make the bitmap representing the armed state
 195         if (m_bmpSelectedOriginal.Ok())
 196         {
 197             if (m_bmpSelectedOriginal.GetMask())
 198             {
 199                 WXPixel backgroundPixel;
 200                 XtVaGetValues((Widget) m_mainWidget,
 201                               XmNarmColor, &backgroundPixel,
 202                               NULL);
 203
 204                 wxColour col;
 205                 col.SetPixel(backgroundPixel);
 206
 207                 wxBitmap newBitmap =
 208                     wxCreateMaskedBitmap(m_bmpSelectedOriginal, col);
 209                 m_bmpSelected = newBitmap;
 210
 211                 armPixmap = (Pixmap) m_bmpSelected.GetDrawable();
 212             }
 213             else
 214                 armPixmap = (Pixmap) m_bitmapCache.GetArmPixmap(m_mainWidget);
 215         }
 216         else
 217             armPixmap = (Pixmap) m_bitmapCache.GetArmPixmap(m_mainWidget);
 218
 219         XtVaSetValues ((Widget) m_mainWidget,
 220             XmNlabelPixmap, pixmap,
 221             XmNlabelInsensitivePixmap, insensPixmap,
 222             XmNarmPixmap, armPixmap,
 223             XmNlabelType, XmPIXMAP,
 224             NULL);
 225     }
 226     else
 227     {
 228         // Null bitmap: must not use current pixmap
 229         // since it is no longer valid.
 230         XtVaSetValues ((Widget) m_mainWidget,
 231             XmNlabelType, XmSTRING,
 232             XmNlabelPixmap, XmUNSPECIFIED_PIXMAP,
 233             XmNlabelInsensitivePixmap, XmUNSPECIFIED_PIXMAP,
 234             XmNarmPixmap, XmUNSPECIFIED_PIXMAP,
 235             NULL);
 236     }
 237 }
 238
 239 void wxBitmapButton::ChangeBackgroundColour()
 240 {
 241     wxDoChangeBackgroundColour(m_mainWidget, m_backgroundColour, true);
 242
 243     // Must reset the bitmaps since the colours have changed.
 244     DoSetBitmap();
 245 }
 246
 247 wxSize wxBitmapButton::DoGetBestSize() const
 248 {
 249     wxSize ret( 30,30 );
 250
 251     if (m_bmpNormal.Ok())
 252     {
 253         int border = (GetWindowStyle() & wxNO_BORDER) ? 4 : 10;
 254         ret.x = m_bmpNormal.GetWidth()+border;
 255         ret.y = m_bmpNormal.GetHeight()+border;
 256     }
 257
 258     return ret;
 259 }