src/palmos/toplevel.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/palmos/toplevel.cpp
   3 // Purpose:     implements wxTopLevelWindow for Palm OS
   4 // Author:      William Osborne - minimal working wxPalmOS port
   5 // Modified by: Wlodzimierz ABX Skiba - more than minimal functionality
   6 // Created:     10/13/04
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) William Osborne <wbo@freeshell.org>, Wlodzimierz Skiba
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "toplevel.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28     #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/app.h"
  33     #include "wx/toplevel.h"
  34     #include "wx/dialog.h"
  35     #include "wx/string.h"
  36     #include "wx/log.h"
  37     #include "wx/intl.h"
  38     #include "wx/frame.h"
  39     #include "wx/containr.h"        // wxSetFocusToChild()
  40 #endif //WX_PRECOMP
  41
  42 #include "wx/module.h"
  43
  44 #include "wx/display.h"
  45
  46 // ----------------------------------------------------------------------------
  47 // globals
  48 // ----------------------------------------------------------------------------
  49
  50 // the name of the default wxWidgets class
  51 extern const wxChar *wxCanvasClassName;
  52
  53 // Pointer to the currently active frame for the form event handler.
  54 wxTopLevelWindowPalm* ActiveParentFrame;
  55
  56 // ============================================================================
  57 // wxTopLevelWindowPalm implementation
  58 // ============================================================================
  59
  60 BEGIN_EVENT_TABLE(wxTopLevelWindowPalm, wxTopLevelWindowBase)
  61     EVT_ACTIVATE(wxTopLevelWindowPalm::OnActivate)
  62 END_EVENT_TABLE()
  63
  64 // ----------------------------------------------------------------------------
  65 // wxTopLevelWindowPalm creation
  66 // ----------------------------------------------------------------------------
  67
  68 void wxTopLevelWindowPalm::Init()
  69 {
  70 }
  71
  72 WXDWORD wxTopLevelWindowPalm::PalmGetStyle(long style, WXDWORD *exflags) const
  73 {
  74     return 0;
  75 }
  76
  77 WXHWND wxTopLevelWindowPalm::PalmGetParent() const
  78 {
  79     return NULL;
  80 }
  81
  82 bool wxTopLevelWindowPalm::Create(wxWindow *parent,
  83                                   wxWindowID id,
  84                                   const wxString& title,
  85                                   const wxPoint& pos,
  86                                   const wxSize& size,
  87                                   long style,
  88                                   const wxString& name)
  89 {
  90     // this is a check for limitation mentioned before FrameFormHandleEvent() code
  91     if(wxTopLevelWindows.GetCount()>0)
  92         return false;
  93
  94     ActiveParentFrame=NULL;
  95
  96     wxTopLevelWindows.Append(this);
  97
  98     if ( parent )
  99         parent->AddChild(this);
 100
 101     m_windowId = id == wxID_ANY ? NewControlId() : id;
 102
 103     WinConstraintsType constraints;
 104     memset(&constraints, 0, sizeof(WinConstraintsType));
 105     constraints.x_pos = ( pos.x == wxDefaultCoord ) ? winUndefConstraint : pos.x;
 106     constraints.y_pos = ( pos.y == wxDefaultCoord ) ? winUndefConstraint : pos.y;
 107     constraints.x_min = winUndefConstraint;
 108     constraints.x_max = winMaxConstraint;
 109     constraints.x_pref = ( size.x == wxDefaultCoord ) ? winUndefConstraint : size.x;
 110     constraints.y_min = winUndefConstraint;
 111     constraints.y_max = winMaxConstraint;
 112     constraints.y_pref = ( size.y == wxDefaultCoord ) ? winUndefConstraint : size.y;
 113
 114     FrameForm = FrmNewFormWithConstraints(
 115                     m_windowId,
 116                     title.c_str(),
 117                     winFlagBackBuffer,
 118                     &constraints,
 119                     0,
 120                     NULL,
 121                     0,
 122                     NULL,
 123                     0
 124                 );
 125
 126     if(FrameForm==NULL)
 127         return false;
 128
 129     FrmSetEventHandler(FrameForm,FrameFormHandleEvent);
 130
 131     FrmSetActiveForm(FrameForm);
 132
 133     ActiveParentFrame=this;
 134
 135     return true;
 136 }
 137
 138 wxTopLevelWindowPalm::~wxTopLevelWindowPalm()
 139 {
 140 }
 141
 142 // ----------------------------------------------------------------------------
 143 // wxTopLevelWindowPalm showing
 144 // ----------------------------------------------------------------------------
 145
 146 void wxTopLevelWindowPalm::DoShowWindow(int nShowCmd)
 147 {
 148 }
 149
 150 bool wxTopLevelWindowPalm::Show(bool show)
 151 {
 152     FrmDrawForm(FrameForm);
 153
 154     wxPaintEvent event(m_windowId);
 155     event.SetEventObject(this);
 156     GetEventHandler()->ProcessEvent(event);
 157
 158     return true;
 159 }
 160
 161 // ----------------------------------------------------------------------------
 162 // wxTopLevelWindowPalm maximize/minimize
 163 // ----------------------------------------------------------------------------
 164
 165 void wxTopLevelWindowPalm::Maximize(bool maximize)
 166 {
 167 }
 168
 169 bool wxTopLevelWindowPalm::IsMaximized() const
 170 {
 171     return false;
 172 }
 173
 174 void wxTopLevelWindowPalm::Iconize(bool iconize)
 175 {
 176 }
 177
 178 bool wxTopLevelWindowPalm::IsIconized() const
 179 {
 180     return false;
 181 }
 182
 183 void wxTopLevelWindowPalm::Restore()
 184 {
 185 }
 186
 187 // ----------------------------------------------------------------------------
 188 // wxTopLevelWindowPalm fullscreen
 189 // ----------------------------------------------------------------------------
 190
 191 bool wxTopLevelWindowPalm::ShowFullScreen(bool show, long style)
 192 {
 193     return false;
 194 }
 195
 196 // ----------------------------------------------------------------------------
 197 // wxTopLevelWindowPalm misc
 198 // ----------------------------------------------------------------------------
 199
 200 void wxTopLevelWindowPalm::SetIcon(const wxIcon& icon)
 201 {
 202 }
 203
 204 void wxTopLevelWindowPalm::SetIcons(const wxIconBundle& icons)
 205 {
 206 }
 207
 208 bool wxTopLevelWindowPalm::EnableCloseButton(bool enable)
 209 {
 210     return false;
 211 }
 212
 213 FormType *wxTopLevelWindowPalm::GetForm()
 214 {
 215     return FrmGetActiveForm ();
 216 }
 217
 218 #ifndef __WXWINCE__
 219
 220 bool wxTopLevelWindowPalm::SetShape(const wxRegion& region)
 221 {
 222     return false;
 223 }
 224
 225 #endif // !__WXWINCE__
 226
 227 // ----------------------------------------------------------------------------
 228 // wxTopLevelWindow event handling
 229 // ----------------------------------------------------------------------------
 230
 231 void wxTopLevelWindowPalm::OnActivate(wxActivateEvent& event)
 232 {
 233 }
 234
 235 /* Palm OS Event handler for the window
 236  *
 237  * This function *must* be located outside of the wxTopLevelWindow class because
 238  * the Palm OS API expects a standalone C function as a callback.  You cannot
 239  * pass a pointer to a member function of a C++ class as a callback because the
 240  * prototypes don't match.  (A member function has a hidden "this" pointer as
 241  * its first parameter).
 242  *
 243  * This event handler uses a global pointer to the current wxFrame to process
 244  * the events generated by the Palm OS form API.  I know this is ugly, but right
 245  * now I can't think of any other way to deal with this problem.  If someone
 246  * finds a better solution, please let me know.  My email address is
 247  * wbo@freeshell.org
 248  */
 249 static Boolean FrameFormHandleEvent(EventType* pEvent)
 250 {
 251     wxFrame*    frame = wxDynamicCast(ActiveParentFrame,wxFrame);
 252     Boolean     fHandled = false;
 253     FormType*   pForm;
 254     WinHandle   hWindow;
 255     int         ItemID=0;
 256
 257     switch (pEvent->eType) {
 258         case ctlSelectEvent:
 259             break;
 260 #if wxUSE_MENUS_NATIVE
 261         case menuOpenEvent:
 262             fHandled = frame->HandleMenuOpen();
 263             break;
 264         case menuEvent:
 265             ItemID = pEvent->data.menu.itemID;
 266             fHandled = frame->HandleMenuSelect(ItemID);
 267             break;
 268 #endif
 269         default:
 270             break;
 271     }
 272
 273     return fHandled;
 274 }