src/motif/bmpbuttn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "bmpbuttn.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __VMS
  20 #define XtScreen XTSCREEN
  21 #endif
  22
  23 #include "wx/defs.h"
  24
  25 #include "wx/bmpbuttn.h"
  26
  27 #ifdef __VMS__
  28 #pragma message disable nosimpint
  29 #endif
  30 #include <Xm/PushBG.h>
  31 #include <Xm/PushB.h>
  32 #ifdef __VMS__
  33 #pragma message enable nosimpint
  34 #endif
  35
  36 #include "wx/motif/private.h"
  37
  38 // Implemented in button.cpp
  39 void wxButtonCallback (Widget w, XtPointer clientData, XtPointer ptr);
  40
  41 // Pixmap XCreateInsensitivePixmap( Display *display, Pixmap pixmap );
  42
  43 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton, wxButton)
  44
  45 wxBitmapButton::wxBitmapButton()
  46 {
  47     m_marginX = m_marginY = wxDEFAULT_BUTTON_MARGIN;
  48     m_insensPixmap = (WXPixmap) 0;
  49 }
  50
  51 bool wxBitmapButton::Create(wxWindow *parent, wxWindowID id,
  52                             const wxBitmap& bitmap,
  53                             const wxPoint& pos,
  54                             const wxSize& size, long style,
  55                             const wxValidator& validator,
  56                             const wxString& name)
  57 {
  58     if( !CreateControl( parent, id, pos, size, style, validator, name ) )
  59         return false;
  60
  61     m_bmpNormal = m_bmpNormalOriginal = bitmap;
  62     m_bmpSelected = m_bmpSelectedOriginal = bitmap;
  63
  64     Widget parentWidget = (Widget) parent->GetClientWidget();
  65
  66     /*
  67     * Patch Note (important)
  68     * There is no major reason to put a defaultButtonThickness here.
  69     * Not requesting it give the ability to put wxButton with a spacing
  70     * as small as requested. However, if some button become a DefaultButton,
  71     * other buttons are no more aligned -- This is why we set
  72     * defaultButtonThickness of ALL buttons belonging to the same wxPanel,
  73     * in the ::SetDefaultButton method.
  74     */
  75     Widget buttonWidget = XtVaCreateManagedWidget ("button",
  76
  77         // Gadget causes problems for default button operation.
  78 #if wxUSE_GADGETS
  79         xmPushButtonGadgetClass, parentWidget,
  80 #else
  81         xmPushButtonWidgetClass, parentWidget,
  82 #endif
  83         // See comment for wxButton::SetDefault
  84         // XmNdefaultButtonShadowThickness, 1,
  85         XmNrecomputeSize, False,
  86         NULL);
  87
  88     m_mainWidget = (WXWidget) buttonWidget;
  89
  90     ChangeFont(FALSE);
  91
  92     ChangeBackgroundColour ();
  93
  94     DoSetBitmap();
  95
  96     XtAddCallback (buttonWidget,
  97                    XmNactivateCallback, (XtCallbackProc) wxButtonCallback,
  98                    (XtPointer) this);
  99
 100     wxSize best = m_bmpNormal.Ok() ? GetBestSize() : wxSize(30, 30);
 101     if( size.x != -1 ) best.x = size.x;
 102     if( size.y != -1 ) best.y = size.y;
 103
 104     AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
 105                   pos.x, pos.y, best.x, best.y);
 106
 107     return TRUE;
 108 }
 109
 110 wxBitmapButton::~wxBitmapButton()
 111 {
 112     SetBitmapLabel(wxNullBitmap);
 113
 114     if (m_insensPixmap)
 115         XmDestroyPixmap (DefaultScreenOfDisplay ((Display*) GetXDisplay()),
 116                          (Pixmap) m_insensPixmap);
 117 }
 118
 119 void wxBitmapButton::SetBitmapLabel(const wxBitmap& bitmap)
 120 {
 121     m_bmpNormalOriginal = bitmap;
 122     m_bmpNormal = bitmap;
 123
 124     DoSetBitmap();
 125 }
 126
 127 void wxBitmapButton::SetBitmapSelected(const wxBitmap& sel)
 128 {
 129     m_bmpSelected = sel;
 130     m_bmpSelectedOriginal = sel;
 131
 132     DoSetBitmap();
 133 };
 134
 135 void wxBitmapButton::SetBitmapFocus(const wxBitmap& focus)
 136 {
 137     m_bmpFocus = focus;
 138     // Not used in Motif
 139 };
 140
 141 void wxBitmapButton::SetBitmapDisabled(const wxBitmap& disabled)
 142 {
 143     m_bmpDisabled = disabled;
 144     m_bmpDisabledOriginal = disabled;
 145
 146     DoSetBitmap();
 147 };
 148
 149 void wxBitmapButton::DoSetBitmap()
 150 {
 151     if (m_bmpNormalOriginal.Ok())
 152     {
 153         Pixmap pixmap = 0;
 154         Pixmap insensPixmap = 0;
 155         Pixmap armPixmap = 0;
 156
 157         // Must re-make the bitmap to have its transparent areas drawn
 158         // in the current widget background colour.
 159         if (m_bmpNormalOriginal.GetMask())
 160         {
 161             int backgroundPixel;
 162             XtVaGetValues((Widget) m_mainWidget,
 163                           XmNbackground, &backgroundPixel,
 164                           NULL);
 165
 166             wxColour col;
 167             col.SetPixel(backgroundPixel);
 168
 169             wxBitmap newBitmap =
 170                 wxCreateMaskedBitmap(m_bmpNormalOriginal, col);
 171             m_bmpNormal = newBitmap;
 172             m_bitmapCache.SetBitmap( m_bmpNormal );
 173
 174             pixmap = (Pixmap) m_bmpNormal.GetDrawable();
 175         }
 176         else
 177         {
 178             m_bitmapCache.SetBitmap( m_bmpNormal );
 179             pixmap = (Pixmap) m_bitmapCache.GetLabelPixmap(m_mainWidget);
 180         }
 181
 182         if (m_bmpDisabledOriginal.Ok())
 183         {
 184             if (m_bmpDisabledOriginal.GetMask())
 185             {
 186                 int backgroundPixel;
 187                 XtVaGetValues((Widget) m_mainWidget,
 188                               XmNbackground, &backgroundPixel,
 189                               NULL);
 190
 191                 wxColour col;
 192                 col.SetPixel(backgroundPixel);
 193
 194                 wxBitmap newBitmap =
 195                     wxCreateMaskedBitmap(m_bmpDisabledOriginal, col);
 196                 m_bmpDisabled = newBitmap;
 197
 198                 insensPixmap = (Pixmap) m_bmpDisabled.GetDrawable();
 199             }
 200             else
 201                 insensPixmap = (Pixmap) m_bitmapCache.GetInsensPixmap(m_mainWidget);
 202         }
 203         else
 204             insensPixmap = (Pixmap) m_bitmapCache.GetInsensPixmap(m_mainWidget);
 205
 206         // Now make the bitmap representing the armed state
 207         if (m_bmpSelectedOriginal.Ok())
 208         {
 209             if (m_bmpSelectedOriginal.GetMask())
 210             {
 211                 int backgroundPixel;
 212                 XtVaGetValues((Widget) m_mainWidget,
 213                               XmNarmColor, &backgroundPixel,
 214                               NULL);
 215
 216                 wxColour col;
 217                 col.SetPixel(backgroundPixel);
 218
 219                 wxBitmap newBitmap =
 220                     wxCreateMaskedBitmap(m_bmpSelectedOriginal, col);
 221                 m_bmpSelected = newBitmap;
 222
 223                 armPixmap = (Pixmap) m_bmpSelected.GetDrawable();
 224             }
 225             else
 226                 armPixmap = (Pixmap) m_bitmapCache.GetArmPixmap(m_mainWidget);
 227         }
 228         else
 229             armPixmap = (Pixmap) m_bitmapCache.GetArmPixmap(m_mainWidget);
 230
 231         XtVaSetValues ((Widget) m_mainWidget,
 232             XmNlabelPixmap, pixmap,
 233             XmNlabelInsensitivePixmap, insensPixmap,
 234             XmNarmPixmap, armPixmap,
 235             XmNlabelType, XmPIXMAP,
 236             NULL);
 237     }
 238     else
 239     {
 240         // Null bitmap: must not use current pixmap
 241         // since it is no longer valid.
 242         XtVaSetValues ((Widget) m_mainWidget,
 243             XmNlabelType, XmSTRING,
 244             XmNlabelPixmap, XmUNSPECIFIED_PIXMAP,
 245             XmNlabelInsensitivePixmap, XmUNSPECIFIED_PIXMAP,
 246             XmNarmPixmap, XmUNSPECIFIED_PIXMAP,
 247             NULL);
 248     }
 249 }
 250
 251 void wxBitmapButton::ChangeBackgroundColour()
 252 {
 253     wxDoChangeBackgroundColour(m_mainWidget, m_backgroundColour, TRUE);
 254
 255     // Must reset the bitmaps since the colours have changed.
 256     DoSetBitmap();
 257 }
 258
 259 wxSize wxBitmapButton::DoGetBestSize() const
 260 {
 261     wxSize ret( 30,30 );
 262
 263     if (m_bmpNormal.Ok())
 264     {
 265         int border = (GetWindowStyle() & wxNO_BORDER) ? 4 : 10;
 266         ret.x = m_bmpNormal.GetWidth()+border;
 267         ret.y = m_bmpNormal.GetHeight()+border;
 268     }
 269
 270     return ret;
 271 }
 272