1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/os2/button.cpp
4 // Author: David Webster
8 // Copyright: (c) David Webster
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
12 // For compilers that support precompilation, includes "wx.h".
13 #include "wx/wxprec.h"
15 #include "wx/button.h"
21 #include "wx/bmpbuttn.h"
22 #include "wx/settings.h"
23 #include "wx/dcscreen.h"
24 #include "wx/scrolwin.h"
25 #include "wx/toplevel.h"
28 #include "wx/stockitem.h"
29 #include "wx/os2/private.h"
31 #define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10)
34 // Should be at the very least less than winDEFAULT_BUTTON_MARGIN
36 #define FOCUS_MARGIN 3
39 #define BST_CHECKED 0x0001
42 IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
46 bool wxButton::Create( wxWindow* pParent,
48 const wxString& rsLbl,
52 const wxValidator& rValidator,
53 const wxString& rsName)
55 wxString rsLabel(rsLbl);
56 if (rsLabel.empty() && wxIsStockID(vId))
57 rsLabel = wxGetStockLabel(vId);
59 wxString sLabel = ::wxPMTextToLabel(rsLabel);
63 SetValidator(rValidator);
65 m_windowStyle = lStyle;
66 pParent->AddChild((wxButton *)this);
68 m_windowId = NewControlId();
71 lStyle = WS_VISIBLE | WS_TABSTOP | BS_PUSHBUTTON;
74 // OS/2 PM does not have Right/Left/Top/Bottom styles.
75 // We will have to define an additional style when we implement notebooks
76 // for a notebook page button
78 if (m_windowStyle & wxCLIP_SIBLINGS )
79 lStyle |= WS_CLIPSIBLINGS;
81 m_hWnd = (WXHWND)::WinCreateWindow( GetHwndOf(pParent) // Parent handle
82 ,WC_BUTTON // A Button class window
83 ,(PSZ)sLabel.c_str() // Button text
84 ,lStyle // Button style
85 ,0, 0, 0, 0 // Location and size
86 ,GetHwndOf(pParent) // Owner handle
87 ,HWND_TOP // Top of Z-Order
89 ,NULL // No control data
90 ,NULL // No Presentation parameters
98 // Subclass again for purposes of dialog editing mode
101 wxFont* pButtonFont = new wxFont( 8
106 SetFont(*pButtonFont);
116 } // end of wxButton::Create
118 wxButton::~wxButton()
120 wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
124 if (tlw->GetDefaultItem() == this)
127 // Don't leave the panel with invalid default item
129 tlw->SetDefaultItem(NULL);
132 } // end of wxButton::~wxButton
134 // ----------------------------------------------------------------------------
135 // size management including autosizing
136 // ----------------------------------------------------------------------------
138 wxSize wxButton::DoGetBestSize() const
140 wxString rsLabel = wxGetWindowText(GetHWND());
144 wxFont vFont = (wxFont)GetFont();
146 GetTextExtent( rsLabel
151 wxGetCharSize( GetHWND()
158 // Add a margin - the button is wider than just its label
160 nWidthButton += 3 * nWidthChar;
163 // The button height is proportional to the height of the font used
165 int nHeightButton = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(nHeightChar);
168 // Need a little extra to make it look right
170 nHeightButton += (int)(nHeightChar/1.5);
172 if (!HasFlag(wxBU_EXACTFIT))
174 wxSize vSize = GetDefaultSize();
176 if (nWidthButton > vSize.x)
177 vSize.x = nWidthButton;
178 if (nHeightButton > vSize.y)
179 vSize.y = nHeightButton;
182 return wxSize( nWidthButton
185 } // end of wxButton::DoGetBestSize
188 wxSize wxButton::GetDefaultSize()
190 static wxSize vSizeBtn;
196 vDc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
199 // The size of a standard button in the dialog units is 50x14,
200 // translate this to pixels
201 // NB1: the multipliers come from the Windows convention
202 // NB2: the extra +1/+2 were needed to get the size be the same as the
203 // size of the buttons in the standard dialog - I don't know how
204 // this happens, but on my system this size is 75x23 in pixels and
205 // 23*8 isn't even divisible by 14... Would be nice to understand
206 // why these constants are needed though!
207 vSizeBtn.x = (50 * (vDc.GetCharWidth() + 1))/4;
208 vSizeBtn.y = ((14 * vDc.GetCharHeight()) + 2)/8;
211 } // end of wxButton::GetDefaultSize
213 void wxButton::Command (
214 wxCommandEvent& rEvent
217 ProcessCommand (rEvent);
218 } // end of wxButton::Command
220 // ----------------------------------------------------------------------------
222 // ----------------------------------------------------------------------------
224 bool wxButton::SendClickEvent()
226 wxCommandEvent vEvent( wxEVT_COMMAND_BUTTON_CLICKED
230 vEvent.SetEventObject(this);
231 return ProcessCommand(vEvent);
232 } // end of wxButton::SendClickEvent
234 void wxButton::SetDefault()
236 wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
238 wxCHECK_RET( tlw, _T("button without top level window?") );
241 // Set this one as the default button both for wxWidgets and Windows
243 wxWindow* pWinOldDefault = tlw->SetDefaultItem(this);
245 SetDefaultStyle( wxDynamicCast(pWinOldDefault, wxButton), false);
246 SetDefaultStyle( this, true );
247 } // end of wxButton::SetDefault
249 void wxButton::SetTmpDefault()
251 wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
253 wxCHECK_RET( tlw, _T("button without top level window?") );
255 wxWindow* pWinOldDefault = tlw->GetDefaultItem();
257 tlw->SetTmpDefaultItem(this);
258 SetDefaultStyle( wxDynamicCast(pWinOldDefault, wxButton), false);
259 SetDefaultStyle( this, true );
260 } // end of wxButton::SetTmpDefault
262 void wxButton::UnsetTmpDefault()
264 wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
266 wxCHECK_RET( tlw, _T("button without top level window?") );
268 tlw->SetTmpDefaultItem(NULL);
270 wxWindow* pWinOldDefault = tlw->GetDefaultItem();
272 SetDefaultStyle( this, false );
273 SetDefaultStyle( wxDynamicCast(pWinOldDefault, wxButton), true );
274 } // end of wxButton::UnsetTmpDefault
276 void wxButton::SetDefaultStyle(
283 // We may be called with NULL pointer -- simpler to do the check here than
284 // in the caller which does wxDynamicCast()
290 // First, let DefDlgProc() know about the new default button
294 if (!wxTheApp->IsActive())
298 // In OS/2 the dialog/panel doesn't really know it has a default
299 // button, the default button simply has that style. We'll just
300 // simulate by setting focus to it
304 lStyle = ::WinQueryWindowULong(GetHwndOf(pBtn), QWL_STYLE);
305 if (!(lStyle & BS_DEFAULT) == bOn)
307 if ((lStyle & BS_USERBUTTON) != BS_USERBUTTON)
310 lStyle |= BS_DEFAULT;
312 lStyle &= ~BS_DEFAULT;
313 ::WinSetWindowULong(GetHwndOf(pBtn), QWL_STYLE, lStyle);
318 // Redraw the button - it will notice itself that it's not the
319 // default one any longer
324 } // end of wxButton::UpdateDefaultStyle
326 // ----------------------------------------------------------------------------
327 // event/message handlers
328 // ----------------------------------------------------------------------------
330 bool wxButton::OS2Command(WXUINT uParam, WXWORD WXUNUSED(wId))
332 bool bProcessed = false;
336 case BN_CLICKED: // normal buttons send this
337 case BN_DBLCLICKED: // owner-drawn ones also send this
338 bProcessed = SendClickEvent();
343 } // end of wxButton::OS2Command
345 WXHBRUSH wxButton::OnCtlColor( WXHDC WXUNUSED(pDC),
346 WXHWND WXUNUSED(pWnd),
347 WXUINT WXUNUSED(nCtlColor),
348 WXUINT WXUNUSED(uMessage),
349 WXWPARAM WXUNUSED(wParam),
350 WXLPARAM WXUNUSED(lParam) )
352 wxBrush* pBackgroundBrush = wxTheBrushList->FindOrCreateBrush( GetBackgroundColour()
356 return (WXHBRUSH)pBackgroundBrush->GetResourceHandle();
357 } // end of wxButton::OnCtlColor
359 void wxButton::MakeOwnerDrawn()
363 lStyle = ::WinQueryWindowULong(GetHwnd(), QWL_STYLE);
364 if ((lStyle & BS_USERBUTTON) != BS_USERBUTTON)
369 lStyle |= BS_USERBUTTON;
370 ::WinSetWindowULong(GetHwnd(), QWL_STYLE, lStyle);
372 } // end of wxButton::MakeOwnerDrawn
374 WXDWORD wxButton::OS2GetStyle(
376 , WXDWORD* pdwExstyle
380 // Buttons never have an external border, they draw their own one
382 WXDWORD dwStyle = wxControl::OS2GetStyle( (lStyle & ~wxBORDER_MASK) | wxBORDER_NONE
387 // We must use WS_CLIPSIBLINGS with the buttons or they would draw over
388 // each other in any resizeable dialog which has more than one button in
391 dwStyle |= WS_CLIPSIBLINGS;
393 } // end of wxButton::OS2GetStyle
395 MRESULT wxButton::WindowProc( WXUINT uMsg,
400 // When we receive focus, we want to temporary become the default button in
401 // our parent panel so that pressing "Enter" would activate us -- and when
402 // losing it we should restore the previous default button as well
404 if (uMsg == WM_SETFOCUS)
406 if (SHORT1FROMMP(lParam) == TRUE)
412 // Let the default processign take place too
416 else if (uMsg == WM_BUTTON1DBLCLK)
419 // Emulate a click event to force an owner-drawn button to change its
420 // appearance - without this, it won't do it
422 (void)wxControl::OS2WindowProc( WM_BUTTON1DOWN
428 // And conitnue with processing the message normally as well
433 // Let the base class do all real processing
435 return (wxControl::OS2WindowProc( uMsg
439 } // end of wxWindowProc