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