1 /////////////////////////////////////////////////////////////////////////////
2 // Name: univ/button.cpp
4 // Author: Vadim Zeitlin
8 // Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
12 // ============================================================================
14 // ============================================================================
16 // ----------------------------------------------------------------------------
18 // ----------------------------------------------------------------------------
21 #pragma implementation "univbutton.h"
24 #include "wx/wxprec.h"
33 #include "wx/dcclient.h"
34 #include "wx/dcscreen.h"
35 #include "wx/button.h"
36 #include "wx/validate.h"
37 #include "wx/settings.h"
40 #include "wx/univ/renderer.h"
41 #include "wx/univ/inphand.h"
42 #include "wx/univ/theme.h"
43 #include "wx/univ/colschem.h"
45 // ----------------------------------------------------------------------------
47 // ----------------------------------------------------------------------------
49 // default margins around the image
50 static const wxCoord DEFAULT_BTN_MARGIN_X = 0; // We should give space for the border, at least.
51 static const wxCoord DEFAULT_BTN_MARGIN_Y = 0;
53 // ============================================================================
55 // ============================================================================
57 IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
59 // ----------------------------------------------------------------------------
61 // ----------------------------------------------------------------------------
69 bool wxButton::Create(wxWindow *parent,
71 const wxBitmap& bitmap,
72 const wxString &label,
76 const wxValidator& validator,
79 // center label by default
80 if ( !(style & wxALIGN_MASK) )
82 style |= wxALIGN_CENTRE_HORIZONTAL | wxALIGN_CENTRE_VERTICAL;
85 if ( !wxControl::Create(parent, id, pos, size, style, wxDefaultValidator, name) )
89 SetImageLabel(bitmap);
90 // SetBestSize(size); -- called by SetImageLabel()
92 CreateInputHandler(wxINP_HANDLER_BUTTON);
101 // ----------------------------------------------------------------------------
103 // ----------------------------------------------------------------------------
106 wxSize wxButtonBase::GetDefaultSize()
108 static wxSize s_sizeBtn;
110 if ( s_sizeBtn.x == 0 )
114 // this corresponds more or less to wxMSW standard in Win32 theme (see
115 // wxWin32Renderer::AdjustSize())
116 // s_sizeBtn.x = 8*dc.GetCharWidth();
117 // s_sizeBtn.y = (11*dc.GetCharHeight())/10 + 2;
118 // Otto Wyss, Patch 664399
119 s_sizeBtn.x = dc.GetCharWidth()*10 + 2;
120 s_sizeBtn.y = dc.GetCharHeight()*11/10 + 2;
126 wxSize wxButton::DoGetBestClientSize() const
128 wxClientDC dc(wxConstCast(this, wxButton));
129 wxCoord width, height;
130 dc.GetMultiLineTextExtent(GetLabel(), &width, &height);
134 // allocate extra space for the bitmap
135 wxCoord heightBmp = m_bitmap.GetHeight() + 2*m_marginBmpY;
136 if ( height < heightBmp )
139 width += m_bitmap.GetWidth() + 2*m_marginBmpX;
142 // The default size should not be adjusted, so the code is moved into the
143 // renderer. This is conceptual wrong but currently the only solution.
144 // (Otto Wyss, Patch 664399)
147 // for compatibility with other ports, the buttons default size is never
148 // less than the standard one, but not when display not PDAs.
149 if (wxSystemSettings::GetScreenType() > wxSYS_SCREEN_PDA)
151 if ( !(GetWindowStyle() & wxBU_EXACTFIT) )
153 wxSize szDef = GetDefaultSize();
154 if ( width < szDef.x )
159 return wxSize(width, height);
162 // ----------------------------------------------------------------------------
164 // ----------------------------------------------------------------------------
166 void wxButton::DoDraw(wxControlRenderer *renderer)
168 if ( !(GetWindowStyle() & wxBORDER_NONE) )
170 renderer->DrawButtonBorder();
173 renderer->DrawLabel(m_bitmap, m_marginBmpX, m_marginBmpY);
176 bool wxButton::DoDrawBackground(wxDC& dc)
179 wxSize size = GetSize();
181 rect.height = size.y;
183 if ( GetBackgroundBitmap().Ok() )
185 // get the bitmap and the flags
188 wxBitmap bmp = GetBackgroundBitmap(&alignment, &stretch);
189 wxControlRenderer::DrawBitmap(dc, bmp, rect, alignment, stretch);
193 m_renderer->DrawButtonSurface(dc, wxTHEME_BG_COLOUR(this),
194 rect, GetStateFlags());
200 // ----------------------------------------------------------------------------
202 // ----------------------------------------------------------------------------
204 void wxButton::Press()
214 void wxButton::Release()
224 void wxButton::Toggle()
233 // releasing button after it had been pressed generates a click event
238 void wxButton::Click()
240 wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, GetId());
241 InitCommandEvent(event);
245 bool wxButton::PerformAction(const wxControlAction& action,
247 const wxString& strArg)
249 if ( action == wxACTION_BUTTON_TOGGLE )
251 else if ( action == wxACTION_BUTTON_CLICK )
253 else if ( action == wxACTION_BUTTON_PRESS )
255 else if ( action == wxACTION_BUTTON_RELEASE )
258 return wxControl::PerformAction(action, numArg, strArg);
263 // ----------------------------------------------------------------------------
265 // ----------------------------------------------------------------------------
267 void wxButton::SetImageLabel(const wxBitmap& bitmap)
271 SetImageMargins(DEFAULT_BTN_MARGIN_X, DEFAULT_BTN_MARGIN_Y);
274 void wxButton::SetImageMargins(wxCoord x, wxCoord y)
276 m_marginBmpX = x + 2;
277 m_marginBmpY = y + 2;
279 SetBestSize(wxDefaultSize);
282 void wxButton::SetDefault()
287 // ============================================================================
288 // wxStdButtonInputHandler
289 // ============================================================================
291 wxStdButtonInputHandler::wxStdButtonInputHandler(wxInputHandler *handler)
292 : wxStdInputHandler(handler)
295 m_winHasMouse = FALSE;
298 bool wxStdButtonInputHandler::HandleKey(wxInputConsumer *consumer,
299 const wxKeyEvent& event,
302 int keycode = event.GetKeyCode();
303 if ( keycode == WXK_SPACE || keycode == WXK_RETURN )
305 consumer->PerformAction(wxACTION_BUTTON_TOGGLE);
310 return wxStdInputHandler::HandleKey(consumer, event, pressed);
313 bool wxStdButtonInputHandler::HandleMouse(wxInputConsumer *consumer,
314 const wxMouseEvent& event)
316 // the button has 2 states: pressed and normal with the following
317 // transitions between them:
319 // normal -> left down -> capture mouse and go to pressed state
320 // pressed -> left up inside -> generate click -> go to normal
321 // outside ------------------>
323 // the other mouse buttons are ignored
324 if ( event.Button(1) )
326 if ( event.LeftDown() || event.LeftDClick() )
328 m_winCapture = consumer->GetInputWindow();
329 m_winCapture->CaptureMouse();
330 m_winHasMouse = TRUE;
332 consumer->PerformAction(wxACTION_BUTTON_PRESS);
336 else if ( event.LeftUp() )
340 m_winCapture->ReleaseMouse();
346 // this will generate a click event
347 consumer->PerformAction(wxACTION_BUTTON_TOGGLE);
351 //else: the mouse was released outside the window, this doesn't
354 //else: don't do anything special about the double click
357 return wxStdInputHandler::HandleMouse(consumer, event);
360 bool wxStdButtonInputHandler::HandleMouseMove(wxInputConsumer *consumer,
361 const wxMouseEvent& event)
363 // we only have to do something when the mouse leaves/enters the pressed
364 // button and don't care about the other ones
365 if ( event.GetEventObject() == m_winCapture )
367 // leaving the button should remove its pressed state
368 if ( event.Leaving() )
370 // remember that the mouse is now outside
371 m_winHasMouse = FALSE;
373 // we do have a pressed button, so release it
374 consumer->GetInputWindow()->SetCurrent(FALSE);
375 consumer->PerformAction(wxACTION_BUTTON_RELEASE);
379 // and entering it back should make it pressed again if it had been
381 else if ( event.Entering() )
383 // the mouse is (back) inside the button
384 m_winHasMouse = TRUE;
386 // we did have a pressed button which we released when leaving the
387 // window, press it again
388 consumer->GetInputWindow()->SetCurrent(TRUE);
389 consumer->PerformAction(wxACTION_BUTTON_PRESS);
395 return wxStdInputHandler::HandleMouseMove(consumer, event);
398 bool wxStdButtonInputHandler::HandleFocus(wxInputConsumer *consumer,
399 const wxFocusEvent& event)
401 // buttons change appearance when they get/lose focus, so return TRUE to
406 bool wxStdButtonInputHandler::HandleActivation(wxInputConsumer *consumer,
409 // the default button changes appearance when the app is [de]activated, so
410 // return TRUE to refresh
411 return wxStaticCast(consumer->GetInputWindow(), wxButton)->IsDefault();
414 #endif // wxUSE_BUTTON