src/motif/button.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        button.cpp
   3 // Purpose:     wxButton
   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 "button.h"
  14 #endif
  15
  16 #include "wx/button.h"
  17 #include "wx/utils.h"
  18
  19 #include <Xm/PushBG.h>
  20 #include <Xm/PushB.h>
  21
  22 #include "wx/motif/private.h"
  23
  24 void wxButtonCallback (Widget w, XtPointer clientData, XtPointer ptr);
  25
  26 #if !USE_SHARED_LIBRARY
  27 IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
  28 #endif
  29
  30 // Button
  31
  32 bool wxButton::Create(wxWindow *parent, wxWindowID id, const wxString& label,
  33            const wxPoint& pos,
  34            const wxSize& size, long style,
  35            const wxValidator& validator,
  36            const wxString& name)
  37 {
  38     SetName(name);
  39     SetValidator(validator);
  40     m_windowStyle = style;
  41     m_backgroundColour = parent->GetBackgroundColour();
  42     m_foregroundColour = parent->GetForegroundColour();
  43     m_windowFont = parent->GetFont();
  44
  45     parent->AddChild((wxButton *)this);
  46
  47     if (id == -1)
  48         m_windowId = NewControlId();
  49     else
  50         m_windowId = id;
  51
  52     wxString label1(wxStripMenuCodes(label));
  53
  54     XmString text = XmStringCreateSimple ((char*) (const char*) label1);
  55     Widget parentWidget = (Widget) parent->GetClientWidget();
  56
  57     XmFontList fontList = (XmFontList) m_windowFont.GetFontList(1.0, XtDisplay(parentWidget));
  58
  59     /*
  60      * Patch Note (important)
  61      * There is no major reason to put a defaultButtonThickness here.
  62      * Not requesting it give the ability to put wxButton with a spacing
  63      * as small as requested. However, if some button become a DefaultButton,
  64      * other buttons are no more aligned -- This is why we set
  65      * defaultButtonThickness of ALL buttons belonging to the same wxPanel,
  66      * in the ::SetDefaultButton method.
  67      */
  68     m_mainWidget = (WXWidget) XtVaCreateManagedWidget ("button",
  69                                         xmPushButtonWidgetClass,
  70                                                  parentWidget,
  71                                                  XmNfontList, fontList,
  72                                                  XmNlabelString, text,
  73 //                  XmNdefaultButtonShadowThickness, 1, // See comment for wxButton::SetDefault
  74                                                  NULL);
  75
  76     XmStringFree (text);
  77
  78     XtAddCallback ((Widget) m_mainWidget, XmNactivateCallback, (XtCallbackProc) wxButtonCallback,
  79             (XtPointer) this);
  80
  81     SetCanAddEventHandler(TRUE);
  82     AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y);
  83
  84     ChangeBackgroundColour();
  85
  86     return TRUE;
  87 }
  88
  89 void wxButton::SetDefault()
  90 {
  91     wxWindow *parent = (wxWindow *)GetParent();
  92     if (parent)
  93         parent->SetDefaultItem(this);
  94
  95   // We initially do not set XmNdefaultShadowThickness, to have small buttons.
  96   // Unfortunately, buttons are now mis-aligned. We try to correct this
  97   // now -- setting this ressource to 1 for each button in the same row.
  98   // Because it's very hard to find wxButton in the same row,
  99   // correction is straighforward: we set resource for all wxButton
 100   // in this parent (but not sub panels)
 101   for (wxNode * node = parent->GetChildren().First (); node; node = node->Next ())
 102     {
 103       wxButton *item = (wxButton *) node->Data ();
 104       if (item->IsKindOf(CLASSINFO(wxButton)))
 105         {
 106           bool managed = XtIsManaged((Widget) item->GetMainWidget());
 107           if (managed)
 108             XtUnmanageChild ((Widget) item->GetMainWidget());
 109
 110           XtVaSetValues ((Widget) item->GetMainWidget(),
 111                          XmNdefaultButtonShadowThickness, 1,
 112                          NULL);
 113
 114           if (managed)
 115             XtManageChild ((Widget) item->GetMainWidget());
 116         }
 117     }                           // while
 118
 119 //  XtVaSetValues((Widget)handle, XmNshowAsDefault, 1, NULL);
 120   XtVaSetValues ((Widget) parent->GetMainWidget(), XmNdefaultButton, (Widget) GetMainWidget(), NULL);
 121 }
 122
 123 void wxButton::Command (wxCommandEvent & event)
 124 {
 125     ProcessCommand (event);
 126 }
 127
 128 void wxButtonCallback (Widget w, XtPointer clientData, XtPointer WXUNUSED(ptr))
 129 {
 130   if (!wxGetWindowFromTable(w))
 131     // Widget has been deleted!
 132     return;
 133
 134   wxButton *item = (wxButton *) clientData;
 135   wxCommandEvent event (wxEVT_COMMAND_BUTTON_CLICKED, item->GetId());
 136   event.SetEventObject(item);
 137   item->ProcessCommand (event);
 138 }
 139
 140 void wxButton::ChangeFont(bool keepOriginalSize)
 141 {
 142     wxWindow::ChangeFont(keepOriginalSize);
 143 }
 144
 145 void wxButton::ChangeBackgroundColour()
 146 {
 147     DoChangeBackgroundColour(m_mainWidget, m_backgroundColour, TRUE);
 148 }
 149
 150 void wxButton::ChangeForegroundColour()
 151 {
 152     wxWindow::ChangeForegroundColour();
 153 }
 154