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