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     AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y);
 117
 118     return TRUE;
 119 }
 120
 121 wxBitmapButton::~wxBitmapButton()
 122 {
 123     SetBitmapLabel(wxNullBitmap);
 124
 125     if (m_insensPixmap)
 126         XmDestroyPixmap (DefaultScreenOfDisplay ((Display*) GetXDisplay()), (Pixmap) m_insensPixmap);
 127 }
 128
 129 void wxBitmapButton::SetBitmapLabel(const wxBitmap& bitmap)
 130 {
 131     m_buttonBitmapOriginal = bitmap;
 132     m_buttonBitmap = bitmap;
 133
 134     DoSetBitmap();
 135 }
 136
 137 void wxBitmapButton::SetBitmapSelected(const wxBitmap& sel)
 138 {
 139     m_buttonBitmapSelected = sel;
 140     m_buttonBitmapSelectedOriginal = sel;
 141
 142     DoSetBitmap();
 143 };
 144
 145 void wxBitmapButton::SetBitmapFocus(const wxBitmap& focus)
 146 {
 147     m_buttonBitmapFocus = focus;
 148     // Not used in Motif
 149 };
 150
 151 void wxBitmapButton::SetBitmapDisabled(const wxBitmap& disabled)
 152 {
 153     m_buttonBitmapDisabled = disabled;
 154     m_buttonBitmapDisabledOriginal = disabled;
 155
 156     DoSetBitmap();
 157 };
 158
 159 void wxBitmapButton::DoSetBitmap()
 160 {
 161     if (m_buttonBitmapOriginal.Ok())
 162     {
 163         Pixmap pixmap = 0;
 164         Pixmap insensPixmap = 0;
 165         Pixmap armPixmap = 0;
 166
 167         // Must re-make the bitmap to have its transparent areas drawn
 168         // in the current widget background colour.
 169         if (m_buttonBitmapOriginal.GetMask())
 170         {
 171             int backgroundPixel;
 172             XtVaGetValues((Widget) m_mainWidget, XmNbackground, &backgroundPixel,
 173                 NULL);
 174
 175             wxColour col;
 176             col.SetPixel(backgroundPixel);
 177
 178             wxBitmap newBitmap = wxCreateMaskedBitmap(m_buttonBitmapOriginal, col);
 179             m_buttonBitmap = newBitmap;
 180
 181             pixmap = (Pixmap) m_buttonBitmap.GetPixmap();
 182         }
 183         else
 184             pixmap = (Pixmap) m_buttonBitmap.GetLabelPixmap(m_mainWidget);
 185
 186         if (m_buttonBitmapDisabledOriginal.Ok())
 187         {
 188             if (m_buttonBitmapDisabledOriginal.GetMask())
 189             {
 190                 int backgroundPixel;
 191                 XtVaGetValues((Widget) m_mainWidget, XmNbackground, &backgroundPixel,
 192                     NULL);
 193
 194                 wxColour col;
 195                 col.SetPixel(backgroundPixel);
 196
 197                 wxBitmap newBitmap = wxCreateMaskedBitmap(m_buttonBitmapDisabledOriginal, col);
 198                 m_buttonBitmapDisabled = newBitmap;
 199
 200                 insensPixmap = (Pixmap) m_buttonBitmapDisabled.GetPixmap();
 201             }
 202             else
 203                 insensPixmap = (Pixmap) m_buttonBitmap.GetInsensPixmap(m_mainWidget);
 204         }
 205         else
 206             insensPixmap = (Pixmap) m_buttonBitmap.GetInsensPixmap(m_mainWidget);
 207
 208         // Now make the bitmap representing the armed state
 209         if (m_buttonBitmapSelectedOriginal.Ok())
 210         {
 211             if (m_buttonBitmapSelectedOriginal.GetMask())
 212             {
 213                 int backgroundPixel;
 214                 XtVaGetValues((Widget) m_mainWidget, XmNarmColor, &backgroundPixel,
 215                     NULL);
 216
 217                 wxColour col;
 218                 col.SetPixel(backgroundPixel);
 219
 220                 wxBitmap newBitmap = wxCreateMaskedBitmap(m_buttonBitmapSelectedOriginal, col);
 221                 m_buttonBitmapSelected = newBitmap;
 222
 223                 armPixmap = (Pixmap) m_buttonBitmapSelected.GetPixmap();
 224             }
 225             else
 226                 armPixmap = (Pixmap) m_buttonBitmap.GetArmPixmap(m_mainWidget);
 227         }
 228         else
 229             armPixmap = (Pixmap) m_buttonBitmap.GetArmPixmap(m_mainWidget);
 230
 231         if (insensPixmap == pixmap) // <- the Get...Pixmap()-functions return the same pixmap!
 232         {
 233             insensPixmap =
 234                 XCreateInsensitivePixmap(DisplayOfScreen(XtScreen((Widget) m_mainWidget)), pixmap);
 235             m_insensPixmap = (WXPixmap) insensPixmap;
 236         }
 237
 238         XtVaSetValues ((Widget) m_mainWidget,
 239             XmNlabelPixmap, pixmap,
 240             XmNlabelInsensitivePixmap, insensPixmap,
 241             XmNarmPixmap, armPixmap,
 242             XmNlabelType, XmPIXMAP,
 243             NULL);
 244     }
 245     else
 246     {
 247         // Null bitmap: must not use current pixmap
 248         // since it is no longer valid.
 249         XtVaSetValues ((Widget) m_mainWidget,
 250             XmNlabelType, XmSTRING,
 251             XmNlabelPixmap, XmUNSPECIFIED_PIXMAP,
 252             XmNlabelInsensitivePixmap, XmUNSPECIFIED_PIXMAP,
 253             XmNarmPixmap, XmUNSPECIFIED_PIXMAP,
 254             NULL);
 255     }
 256 }
 257
 258 void wxBitmapButton::ChangeBackgroundColour()
 259 {
 260     DoChangeBackgroundColour(m_mainWidget, m_backgroundColour, TRUE);
 261
 262     // Must reset the bitmaps since the colours have changed.
 263     DoSetBitmap();
 264 }