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