+/////////////////////////////////////////////////////////////////////////////
+// Name: univ/tglbtn.cpp
+// Purpose: wxToggleButton
+// Author: Vadim Zeitlin
+// Modified by: David Bjorkevik
+// Created: 16.05.06
+// RCS-ID: $Id$
+// Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
+// Licence: wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+ #pragma hdrstop
+#endif
+
+#if wxUSE_TOGGLEBTN
+
+#ifndef WX_PRECOMP
+ #include "wx/dcclient.h"
+ #include "wx/dcscreen.h"
+ #include "wx/button.h"
+ #include "wx/validate.h"
+ #include "wx/settings.h"
+#endif
+
+#include "wx/univ/renderer.h"
+#include "wx/univ/inphand.h"
+#include "wx/univ/theme.h"
+#include "wx/univ/colschem.h"
+#include "wx/stockitem.h"
+#include "wx/tglbtn.h"
+
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED)
+
+// default margins around the image
+static const wxCoord DEFAULT_BTN_MARGIN_X = 0; // We should give space for the border, at least.
+static const wxCoord DEFAULT_BTN_MARGIN_Y = 0;
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+IMPLEMENT_DYNAMIC_CLASS(wxToggleButton, wxControl)
+
+// ----------------------------------------------------------------------------
+// creation
+// ----------------------------------------------------------------------------
+
+void wxToggleButton::Init()
+{
+ m_isPressed = false;
+ m_value = false;
+}
+
+bool wxToggleButton::Create(wxWindow *parent,
+ wxWindowID id,
+ const wxBitmap& bitmap,
+ const wxString &lbl,
+ const wxPoint &pos,
+ const wxSize &size,
+ long style,
+ const wxValidator& validator,
+ const wxString &name)
+{
+ wxString label(lbl);
+ if (label.empty() && wxIsStockID(id))
+ label = wxGetStockLabel(id);
+
+ long ctrl_style = style & ~wxBU_ALIGN_MASK;
+
+ wxASSERT_MSG( (ctrl_style & wxALIGN_MASK) == 0,
+ _T("Some style conflicts with align flags") );
+
+ if((style & wxBU_RIGHT) == wxBU_RIGHT)
+ ctrl_style |= wxALIGN_RIGHT;
+ else if((style & wxBU_LEFT) == wxBU_LEFT)
+ ctrl_style |= wxALIGN_LEFT;
+ else
+ ctrl_style |= wxALIGN_CENTRE_HORIZONTAL;
+
+ if((style & wxBU_TOP) == wxBU_TOP)
+ ctrl_style |= wxALIGN_TOP;
+ else if((style & wxBU_BOTTOM) == wxBU_BOTTOM)
+ ctrl_style |= wxALIGN_BOTTOM;
+ else
+ ctrl_style |= wxALIGN_CENTRE_VERTICAL;
+
+ if ( !wxControl::Create(parent, id, pos, size, ctrl_style, validator, name) )
+ return false;
+
+ SetLabel(label);
+ SetImageLabel(bitmap);
+ // SetBestSize(size); -- called by SetImageLabel()
+
+ CreateInputHandler(wxINP_HANDLER_BUTTON);
+
+ return true;
+}
+
+wxToggleButton::~wxToggleButton()
+{
+}
+
+// ----------------------------------------------------------------------------
+// size management
+// ----------------------------------------------------------------------------
+
+/* static */
+wxSize wxToggleButton::GetDefaultSize()
+{
+ static wxSize s_sizeBtn;
+
+ if ( s_sizeBtn.x == 0 )
+ {
+ wxScreenDC dc;
+
+ // this corresponds more or less to wxMSW standard in Win32 theme (see
+ // wxWin32Renderer::AdjustSize())
+// s_sizeBtn.x = 8*dc.GetCharWidth();
+// s_sizeBtn.y = (11*dc.GetCharHeight())/10 + 2;
+ // Otto Wyss, Patch 664399
+ s_sizeBtn.x = dc.GetCharWidth()*10 + 2;
+ s_sizeBtn.y = dc.GetCharHeight()*11/10 + 2;
+ }
+
+ return s_sizeBtn;
+}
+
+wxSize wxToggleButton::DoGetBestClientSize() const
+{
+ wxClientDC dc(wxConstCast(this, wxToggleButton));
+ wxCoord width, height;
+ dc.GetMultiLineTextExtent(GetLabel(), &width, &height);
+
+ if ( m_bitmap.Ok() )
+ {
+ // allocate extra space for the bitmap
+ wxCoord heightBmp = m_bitmap.GetHeight() + 2*m_marginBmpY;
+ if ( height < heightBmp )
+ height = heightBmp;
+
+ width += m_bitmap.GetWidth() + 2*m_marginBmpX;
+ }
+
+ // The default size should not be adjusted, so the code is moved into the
+ // renderer. This is conceptual wrong but currently the only solution.
+ // (Otto Wyss, Patch 664399)
+
+/*
+ // for compatibility with other ports, the buttons default size is never
+ // less than the standard one, but not when display not PDAs.
+ if (wxSystemSettings::GetScreenType() > wxSYS_SCREEN_PDA)
+ {
+ if ( !(GetWindowStyle() & wxBU_EXACTFIT) )
+ {
+ wxSize szDef = GetDefaultSize();
+ if ( width < szDef.x )
+ width = szDef.x;
+ }
+ }
+*/
+ return wxSize(width, height);
+}
+
+// ----------------------------------------------------------------------------
+// drawing
+// ----------------------------------------------------------------------------
+
+void wxToggleButton::DoDraw(wxControlRenderer *renderer)
+{
+ if ( !(GetWindowStyle() & wxBORDER_NONE) )
+ {
+ renderer->DrawButtonBorder();
+ }
+
+ renderer->DrawLabel(m_bitmap, m_marginBmpX, m_marginBmpY);
+}
+
+bool wxToggleButton::DoDrawBackground(wxDC& dc)
+{
+ wxRect rect;
+ wxSize size = GetSize();
+ rect.width = size.x;
+ rect.height = size.y;
+
+ if ( GetBackgroundBitmap().Ok() )
+ {
+ // get the bitmap and the flags
+ int alignment;
+ wxStretch stretch;
+ wxBitmap bmp = GetBackgroundBitmap(&alignment, &stretch);
+ wxControlRenderer::DrawBitmap(dc, bmp, rect, alignment, stretch);
+ }
+ else
+ {
+ m_renderer->DrawButtonSurface(dc, wxTHEME_BG_COLOUR(this),
+ rect, GetStateFlags());
+ }
+
+ return true;
+}
+
+// ----------------------------------------------------------------------------
+// input processing
+// ----------------------------------------------------------------------------
+
+void wxToggleButton::Press()
+{
+ if ( !m_isPressed )
+ {
+ m_isPressed = true;
+
+ Refresh();
+ }
+}
+
+void wxToggleButton::Release()
+{
+ if ( m_isPressed )
+ {
+ m_isPressed = false;
+
+ Refresh();
+ }
+}
+
+void wxToggleButton::Toggle()
+{
+ if ( m_isPressed )
+ Release();
+ else
+ Press();
+
+ if ( !m_isPressed )
+ {
+ // releasing button after it had been pressed generates a click event
+ // and toggles value
+ m_value = !m_value;
+ Click();
+ }
+}
+
+void wxToggleButton::Click()
+{
+ wxCommandEvent event(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, GetId());
+ InitCommandEvent(event);
+ event.SetInt(GetValue());
+ Command(event);
+}
+
+bool wxToggleButton::PerformAction(const wxControlAction& action,
+ long numArg,
+ const wxString& strArg)
+{
+ if ( action == wxACTION_BUTTON_TOGGLE )
+ Toggle();
+ else if ( action == wxACTION_BUTTON_CLICK )
+ Click();
+ else if ( action == wxACTION_BUTTON_PRESS )
+ Press();
+ else if ( action == wxACTION_BUTTON_RELEASE )
+ Release();
+ else
+ return wxControl::PerformAction(action, numArg, strArg);
+
+ return true;
+}
+
+// ----------------------------------------------------------------------------
+// misc
+// ----------------------------------------------------------------------------
+
+void wxToggleButton::SetImageLabel(const wxBitmap& bitmap)
+{
+ m_bitmap = bitmap;
+
+ SetImageMargins(DEFAULT_BTN_MARGIN_X, DEFAULT_BTN_MARGIN_Y);
+}
+
+void wxToggleButton::SetImageMargins(wxCoord x, wxCoord y)
+{
+ m_marginBmpX = x + 2;
+ m_marginBmpY = y + 2;
+
+ SetBestSize(wxDefaultSize);
+}
+
+// void SetValue(bool state)
+// Set the value of the toggle button.
+void wxToggleButton::SetValue(bool state)
+{
+ m_value = state;
+ Refresh();
+}
+
+// ============================================================================
+// wxStdButtonInputHandler
+// ============================================================================
+
+wxStdToggleButtonInputHandler::wxStdToggleButtonInputHandler(wxInputHandler *handler)
+ : wxStdInputHandler(handler)
+{
+ m_winCapture = NULL;
+ m_winHasMouse = false;
+}
+
+bool wxStdToggleButtonInputHandler::HandleKey(wxInputConsumer *consumer,
+ const wxKeyEvent& event,
+ bool pressed)
+{
+ int keycode = event.GetKeyCode();
+ if ( keycode == WXK_SPACE || keycode == WXK_RETURN )
+ {
+ consumer->PerformAction(wxACTION_BUTTON_TOGGLE);
+
+ return true;
+ }
+
+ return wxStdInputHandler::HandleKey(consumer, event, pressed);
+}
+
+bool wxStdToggleButtonInputHandler::HandleMouse(wxInputConsumer *consumer,
+ const wxMouseEvent& event)
+{
+ // the button has 2 states: pressed and normal with the following
+ // transitions between them:
+ //
+ // normal -> left down -> capture mouse and go to pressed state
+ // pressed -> left up inside -> generate click -> go to normal
+ // outside ------------------>
+ //
+ // the other mouse buttons are ignored
+ if ( event.Button(1) )
+ {
+ if ( event.LeftDown() || event.LeftDClick() )
+ {
+ m_winCapture = consumer->GetInputWindow();
+ m_winCapture->CaptureMouse();
+ m_winHasMouse = true;
+
+ consumer->PerformAction(wxACTION_BUTTON_PRESS);
+
+ return true;
+ }
+ else if ( event.LeftUp() )
+ {
+ if ( m_winCapture )
+ {
+ m_winCapture->ReleaseMouse();
+ m_winCapture = NULL;
+ }
+
+ if ( m_winHasMouse )
+ {
+ // this will generate a click event
+ consumer->PerformAction(wxACTION_BUTTON_TOGGLE);
+
+ return true;
+ }
+ //else: the mouse was released outside the window, this doesn't
+ // count as a click
+ }
+ //else: don't do anything special about the double click
+ }
+
+ return wxStdInputHandler::HandleMouse(consumer, event);
+}
+
+bool wxStdToggleButtonInputHandler::HandleMouseMove(wxInputConsumer *consumer,
+ const wxMouseEvent& event)
+{
+ // we only have to do something when the mouse leaves/enters the pressed
+ // button and don't care about the other ones
+ if ( event.GetEventObject() == m_winCapture )
+ {
+ // leaving the button should remove its pressed state
+ if ( event.Leaving() )
+ {
+ // remember that the mouse is now outside
+ m_winHasMouse = false;
+
+ // we do have a pressed button, so release it
+ consumer->GetInputWindow()->SetCurrent(false);
+ consumer->PerformAction(wxACTION_BUTTON_RELEASE);
+
+ return true;
+ }
+ // and entering it back should make it pressed again if it had been
+ // pressed
+ else if ( event.Entering() )
+ {
+ // the mouse is (back) inside the button
+ m_winHasMouse = true;
+
+ // we did have a pressed button which we released when leaving the
+ // window, press it again
+ consumer->GetInputWindow()->SetCurrent(true);
+ consumer->PerformAction(wxACTION_BUTTON_PRESS);
+
+ return true;
+ }
+ }
+
+ return wxStdInputHandler::HandleMouseMove(consumer, event);
+}
+
+bool wxStdToggleButtonInputHandler::HandleFocus(wxInputConsumer * WXUNUSED(consumer),
+ const wxFocusEvent& WXUNUSED(event))
+{
+ // buttons change appearance when they get/lose focus, so return true to
+ // refresh
+ return true;
+}
+
+bool wxStdToggleButtonInputHandler::HandleActivation(wxInputConsumer *consumer,
+ bool WXUNUSED(activated))
+{
+ // the default button changes appearance when the app is [de]activated, so
+ // return true to refresh
+ return wxStaticCast(consumer->GetInputWindow(), wxToggleButton)->IsDefault();
+}
+
+#endif // wxUSE_TOGGLEBTN
+
projects / wxWidgets.git / commitdiff
