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 #ifdef __GNUG__
  13 #pragma implementation "bmpbuttn.h"
  14 #endif
  15
  16 #ifdef __VMS
  17 #define XtScreen XTSCREEN
  18 #endif
  19
  20 #include "wx/defs.h"
  21
  22 #include "wx/bmpbuttn.h"
  23
  24 #ifdef __VMS__
  25 #pragma message disable nosimpint
  26 #endif
  27 #include <Xm/PushBG.h>
  28 #include <Xm/PushB.h>
  29 #ifdef __VMS__
  30 #pragma message enable nosimpint
  31 #endif
  32
  33 #include "wx/motif/private.h"
  34
  35 // Implemented in button.cpp
  36 void wxButtonCallback (Widget w, XtPointer clientData, XtPointer ptr);
  37
  38 Pixmap XCreateInsensitivePixmap( Display *display, Pixmap pixmap );
  39
  40 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton, wxButton)
  41
  42 wxBitmapButton::wxBitmapButton()
  43 {
  44     m_marginX = wxDEFAULT_BUTTON_MARGIN; m_marginY = wxDEFAULT_BUTTON_MARGIN;
  45     m_insensPixmap = (WXPixmap) 0;
  46 }
  47
  48 bool wxBitmapButton::Create(wxWindow *parent, wxWindowID id, const wxBitmap& bitmap,
  49                             const wxPoint& pos,
  50                             const wxSize& size, long style,
  51                             const wxValidator& validator,
  52                             const wxString& name)
  53 {
  54     m_buttonBitmap = bitmap;
  55     m_buttonBitmapOriginal = bitmap;
  56     m_buttonBitmapSelected = bitmap;
  57     m_buttonBitmapSelectedOriginal = bitmap;
  58
  59     SetName(name);
  60     SetValidator(validator);
  61     parent->AddChild(this);
  62
  63     m_backgroundColour = parent->GetBackgroundColour() ;
  64     m_foregroundColour = parent->GetForegroundColour() ;
  65     m_windowStyle = style;
  66     m_marginX = 0;
  67     m_marginY = 0;
  68
  69     /*
  70     int x = pos.x;
  71     int y = pos.y;
  72     int width = size.x;
  73     int height = size.y;
  74     */
  75
  76     if (id == -1)
  77         m_windowId = NewControlId();
  78     else
  79         m_windowId = id;
  80
  81     Widget parentWidget = (Widget) parent->GetClientWidget();
  82
  83     /*
  84     * Patch Note (important)
  85     * There is no major reason to put a defaultButtonThickness here.
  86     * Not requesting it give the ability to put wxButton with a spacing
  87     * as small as requested. However, if some button become a DefaultButton,
  88     * other buttons are no more aligned -- This is why we set
  89     * defaultButtonThickness of ALL buttons belonging to the same wxPanel,
  90     * in the ::SetDefaultButton method.
  91     */
  92     Widget buttonWidget = XtVaCreateManagedWidget ("button",
  93
  94         // Gadget causes problems for default button operation.
  95 #if wxUSE_GADGETS
  96         xmPushButtonGadgetClass, parentWidget,
  97 #else
  98         xmPushButtonWidgetClass, parentWidget,
  99 #endif
 100         //                  XmNdefaultButtonShadowThickness, 1, // See comment for wxButton::SetDefault
 101         NULL);
 102
 103     m_mainWidget = (WXWidget) buttonWidget;
 104
 105     m_font = parent->GetFont();
 106     ChangeFont(FALSE);
 107
 108     ChangeBackgroundColour ();
 109
 110     DoSetBitmap();
 111
 112     XtAddCallback (buttonWidget, XmNactivateCallback, (XtCallbackProc) wxButtonCallback,
 113         (XtPointer) this);
 114
 115     SetCanAddEventHandler(TRUE);
 116
 117     wxSize newSize = size;
 118
 119     if (m_buttonBitmap.Ok())
 120     {
 121         int border = (style & wxNO_BORDER) ? 4 : 10;
 122         if (newSize.x == -1)
 123             newSize.x = m_buttonBitmap.GetWidth()+border;
 124         if (newSize.y == -1)
 125             newSize.y = m_buttonBitmap.GetHeight()+border;
 126     }
 127
 128     AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, newSize.x, newSize.y);
 129
 130     return TRUE;
 131 }
 132
 133 wxBitmapButton::~wxBitmapButton()
 134 {
 135     SetBitmapLabel(wxNullBitmap);
 136
 137     if (m_insensPixmap)
 138         XmDestroyPixmap (DefaultScreenOfDisplay ((Display*) GetXDisplay()), (Pixmap) m_insensPixmap);
 139 }
 140
 141 void wxBitmapButton::SetBitmapLabel(const wxBitmap& bitmap)
 142 {
 143     m_buttonBitmapOriginal = bitmap;
 144     m_buttonBitmap = bitmap;
 145
 146     DoSetBitmap();
 147 }
 148
 149 void wxBitmapButton::SetBitmapSelected(const wxBitmap& sel)
 150 {
 151     m_buttonBitmapSelected = sel;
 152     m_buttonBitmapSelectedOriginal = sel;
 153
 154     DoSetBitmap();
 155 };
 156
 157 void wxBitmapButton::SetBitmapFocus(const wxBitmap& focus)
 158 {
 159     m_buttonBitmapFocus = focus;
 160     // Not used in Motif
 161 };
 162
 163 void wxBitmapButton::SetBitmapDisabled(const wxBitmap& disabled)
 164 {
 165     m_buttonBitmapDisabled = disabled;
 166     m_buttonBitmapDisabledOriginal = disabled;
 167
 168     DoSetBitmap();
 169 };
 170
 171 void wxBitmapButton::DoSetBitmap()
 172 {
 173     if (m_buttonBitmapOriginal.Ok())
 174     {
 175         Pixmap pixmap = 0;
 176         Pixmap insensPixmap = 0;
 177         Pixmap armPixmap = 0;
 178
 179         // Must re-make the bitmap to have its transparent areas drawn
 180         // in the current widget background colour.
 181         if (m_buttonBitmapOriginal.GetMask())
 182         {
 183             int backgroundPixel;
 184             XtVaGetValues((Widget) m_mainWidget, XmNbackground, &backgroundPixel,
 185                 NULL);
 186
 187             wxColour col;
 188             col.SetPixel(backgroundPixel);
 189
 190             wxBitmap newBitmap = wxCreateMaskedBitmap(m_buttonBitmapOriginal, col);
 191             m_buttonBitmap = newBitmap;
 192
 193             pixmap = (Pixmap) m_buttonBitmap.GetPixmap();
 194         }
 195         else
 196             pixmap = (Pixmap) m_buttonBitmap.GetLabelPixmap(m_mainWidget);
 197
 198         if (m_buttonBitmapDisabledOriginal.Ok())
 199         {
 200             if (m_buttonBitmapDisabledOriginal.GetMask())
 201             {
 202                 int backgroundPixel;
 203                 XtVaGetValues((Widget) m_mainWidget, XmNbackground, &backgroundPixel,
 204                     NULL);
 205
 206                 wxColour col;
 207                 col.SetPixel(backgroundPixel);
 208
 209                 wxBitmap newBitmap = wxCreateMaskedBitmap(m_buttonBitmapDisabledOriginal, col);
 210                 m_buttonBitmapDisabled = newBitmap;
 211
 212                 insensPixmap = (Pixmap) m_buttonBitmapDisabled.GetPixmap();
 213             }
 214             else
 215                 insensPixmap = (Pixmap) m_buttonBitmap.GetInsensPixmap(m_mainWidget);
 216         }
 217         else
 218             insensPixmap = (Pixmap) m_buttonBitmap.GetInsensPixmap(m_mainWidget);
 219
 220         // Now make the bitmap representing the armed state
 221         if (m_buttonBitmapSelectedOriginal.Ok())
 222         {
 223             if (m_buttonBitmapSelectedOriginal.GetMask())
 224             {
 225                 int backgroundPixel;
 226                 XtVaGetValues((Widget) m_mainWidget, XmNarmColor, &backgroundPixel,
 227                     NULL);
 228
 229                 wxColour col;
 230                 col.SetPixel(backgroundPixel);
 231
 232                 wxBitmap newBitmap = wxCreateMaskedBitmap(m_buttonBitmapSelectedOriginal, col);
 233                 m_buttonBitmapSelected = newBitmap;
 234
 235                 armPixmap = (Pixmap) m_buttonBitmapSelected.GetPixmap();
 236             }
 237             else
 238                 armPixmap = (Pixmap) m_buttonBitmap.GetArmPixmap(m_mainWidget);
 239         }
 240         else
 241             armPixmap = (Pixmap) m_buttonBitmap.GetArmPixmap(m_mainWidget);
 242
 243         if (insensPixmap == pixmap) // <- the Get...Pixmap()-functions return the same pixmap!
 244         {
 245             insensPixmap =
 246                 XCreateInsensitivePixmap(DisplayOfScreen(XtScreen((Widget) m_mainWidget)), pixmap);
 247             m_insensPixmap = (WXPixmap) insensPixmap;
 248         }
 249
 250         XtVaSetValues ((Widget) m_mainWidget,
 251             XmNlabelPixmap, pixmap,
 252             XmNlabelInsensitivePixmap, insensPixmap,
 253             XmNarmPixmap, armPixmap,
 254             XmNlabelType, XmPIXMAP,
 255             NULL);
 256     }
 257     else
 258     {
 259         // Null bitmap: must not use current pixmap
 260         // since it is no longer valid.
 261         XtVaSetValues ((Widget) m_mainWidget,
 262             XmNlabelType, XmSTRING,
 263             XmNlabelPixmap, XmUNSPECIFIED_PIXMAP,
 264             XmNlabelInsensitivePixmap, XmUNSPECIFIED_PIXMAP,
 265             XmNarmPixmap, XmUNSPECIFIED_PIXMAP,
 266             NULL);
 267     }
 268 }
 269
 270 void wxBitmapButton::ChangeBackgroundColour()
 271 {
 272     DoChangeBackgroundColour(m_mainWidget, m_backgroundColour, TRUE);
 273
 274     // Must reset the bitmaps since the colours have changed.
 275     DoSetBitmap();
 276 }
 277
 278 wxSize wxBitmapButton::DoGetBestSize() const
 279 {
 280     wxSize ret( 30,30 );
 281
 282     if (m_buttonBitmap.Ok())
 283     {
 284         int border = (GetWindowStyle() & wxNO_BORDER) ? 4 : 10;
 285         ret.x = m_buttonBitmap.GetWidth()+border;
 286         ret.y = m_buttonBitmap.GetHeight()+border;
 287     }
 288
 289     if (!HasFlag(wxBU_EXACTFIT))
 290     {
 291         if (ret.x < 80) ret.x = 80;
 292     }
 293
 294     return ret;
 295 }
 296