added and documented wxProcess::Is{Input|Error}Available() and IsInputOpened

[wxWidgets.git] / src / os2 / button.cpp

diff --git a/src/os2/button.cpp b/src/os2/button.cpp
index 7f1caf34d4721b235fa7e0f9e55114f176ebe306..46892a89fc769fe17608a0786b09bb0775a2b23b 100644 (file)
--- a/src/os2/button.cpp
+++ b/src/os2/button.cpp
@@ -19,84 +19,177 @@
     #include "wx/bmpbuttn.h"
     #include "wx/settings.h"
     #include "wx/dcscreen.h"
     #include "wx/bmpbuttn.h"
     #include "wx/settings.h"
     #include "wx/dcscreen.h"

+    #include "wx/scrolwin.h"

 #endif
 
 #include "wx/os2/private.h"
 
 #endif
 
 #include "wx/os2/private.h"
 

-#if !USE_SHARED_LIBRARY
-IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
+#define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10)
+
+//
+// Should be at the very least less than winDEFAULT_BUTTON_MARGIN
+//
+#define FOCUS_MARGIN 3
+
+#ifndef BST_CHECKED
+#define BST_CHECKED 0x0001

 #endif
 
 #endif
 

+IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
+

 // Button
 
 // Button
 

-bool wxButton::Create(wxWindow *parent, wxWindowID id, const wxString& label,
-           const wxPoint& pos,
-           const wxSize& size, long style,
-           const wxValidator& validator,
-           const wxString& name)
+bool wxButton::Create(
+  wxWindow*                         pParent
+, wxWindowID                        vId
+, const wxString&                   rsLabel
+, const wxPoint&                    rPos
+, const wxSize&                     rSize
+, long                              lStyle
+#if wxUSE_VALIDATORS
+, const wxValidator&                rValidator
+#endif
+, const wxString&                   rsName
+)

 {
 {

-    SetName(name);
-    SetValidator(validator);
-    m_windowStyle = style;
-
-    parent->AddChild((wxButton *)this);
-
-    if (id == -1)
+    SetName(rsName);
+#if wxUSE_VALIDATORS
+    SetValidator(rValidator);
+#endif
+    m_windowStyle = lStyle;
+    pParent->AddChild((wxButton *)this);
+    if (vId == -1)

         m_windowId = NewControlId();
     else
         m_windowId = NewControlId();
     else

-        m_windowId = id;
-
-    // TODO: create button
+        m_windowId = vId;
+    lStyle = WS_VISIBLE | WS_TABSTOP | BS_PUSHBUTTON;
+
+    //
+    // OS/2 PM does not have Right/Left/Top/Bottom styles.
+    // We will have to define an additional style when we implement notebooks
+    // for a notebook page button
+    //
+    if (m_windowStyle & wxCLIP_SIBLINGS )
+        lStyle |= WS_CLIPSIBLINGS;
+
+    m_hWnd = (WXHWND)::WinCreateWindow( GetHwndOf(pParent)   // Parent handle
+                                       ,WC_BUTTON            // A Button class window
+                                       ,(PSZ)rsLabel.c_str() // Button text
+                                       ,lStyle               // Button style
+                                       ,0, 0, 0, 0           // Location and size
+                                       ,GetHwndOf(pParent)   // Owner handle
+                                       ,HWND_TOP             // Top of Z-Order
+                                       ,vId                  // Identifier
+                                       ,NULL                 // No control data
+                                       ,NULL                 // No Presentation parameters
+                                      );
+    if (m_hWnd == 0)
+    {
+        return FALSE;
+    }

 
 

-    return FALSE;
-}
+    //
+    // Subclass again for purposes of dialog editing mode
+    //
+    SubclassWin(m_hWnd);
+    wxFont*                          pButtonFont = new wxFont( 8
+                                                              ,wxSWISS
+                                                              ,wxNORMAL
+                                                              ,wxNORMAL
+                                                             );
+    SetFont(*pButtonFont);
+    SetXComp(0);
+    SetYComp(0);
+    SetSize( rPos.x
+            ,rPos.y
+            ,rSize.x
+            ,rSize.y
+           );
+    delete pButtonFont;
+    return TRUE;
+} // end of wxButton::Create

 
 wxButton::~wxButton()
 {
 
 wxButton::~wxButton()
 {

-    wxPanel *panel = wxDynamicCast(GetParent(), wxPanel);
-    if ( panel )
+    wxPanel*                        pPanel = wxDynamicCast(GetParent(), wxPanel);
+
+    if (pPanel)

     {
     {

-        if ( panel->GetDefaultItem() == this )
+        if (pPanel->GetDefaultItem() == this)

         {
         {

-            // don't leave the panel with invalid default item
-            panel->SetDefaultItem(NULL);
+            //
+            // Don't leave the panel with invalid default item
+            //
+            pPanel->SetDefaultItem(NULL);

         }
     }
         }
     }

-}
+} // end of wxButton::~wxButton

 
 // ----------------------------------------------------------------------------
 // size management including autosizing
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // size management including autosizing
 // ----------------------------------------------------------------------------
 

-wxSize wxButton::DoGetBestSize()
+wxSize wxButton::DoGetBestSize() const

 {
 {

-    wxString label = wxGetWindowText(GetHWND());
-    int wBtn;
-    GetTextExtent(label, &wBtn, NULL);
-
-    int wChar, hChar;
-    wxGetCharSize(GetHWND(), &wChar, &hChar, &GetFont());
-
-    // add a margin - the button is wider than just its label
-    wBtn += 3*wChar;
-
-    // the button height is proportional to the height of the font used
-    int hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar);
+    wxString                        rsLabel = wxGetWindowText(GetHWND());
+    int                             nWidthButton;
+    int                             nWidthChar;
+    int                             nHeightChar;
+
+    GetTextExtent( rsLabel
+                  ,&nWidthButton
+                  ,NULL
+                 );
+
+    wxGetCharSize( GetHWND()
+                  ,&nWidthChar
+                  ,&nHeightChar
+                  ,(wxFont*)&GetFont()
+                 );
+
+    //
+    // Add a margin - the button is wider than just its label
+    //
+    nWidthButton += 3 * nWidthChar;
+
+    //
+    // The button height is proportional to the height of the font used
+    //
+    int                             nHeightButton = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(nHeightChar);
+
+    //
+    // Need a little extra to make it look right
+    //
+    nHeightButton += nHeightChar/1.5;
+
+    if (!HasFlag(wxBU_EXACTFIT))
+    {
+        wxSize                      vSize = GetDefaultSize();

 
 

-    return wxSize(wBtn, hBtn);
-}
+        if (nWidthButton > vSize.x)
+            vSize.x = nWidthButton;
+        if (nHeightButton > vSize.y)
+            vSize.y = nHeightButton;
+        return vSize;
+    }
+    return wxSize( nWidthButton
+                  ,nHeightButton
+                 );
+} // end of wxButton::DoGetBestSize

 
 /* static */
 wxSize wxButton::GetDefaultSize()
 {
 
 /* static */
 wxSize wxButton::GetDefaultSize()
 {

-    static wxSize s_sizeBtn;
+    static wxSize                   vSizeBtn;

 
 

-    if ( s_sizeBtn.x == 0 )
+    if (vSizeBtn.x == 0)

     {
     {

-        wxScreenDC dc;
-        dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
+        wxScreenDC                  vDc;

 
 

-        // the size of a standard button in the dialog units is 50x14,
+        vDc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
+
+        //
+        // The size of a standard button in the dialog units is 50x14,

         // translate this to pixels
         // NB1: the multipliers come from the Windows convention
         // NB2: the extra +1/+2 were needed to get the size be the same as the
         // translate this to pixels
         // NB1: the multipliers come from the Windows convention
         // NB2: the extra +1/+2 were needed to get the size be the same as the


@@ -104,17 +197,18 @@ wxSize wxButton::GetDefaultSize()
         //      this happens, but on my system this size is 75x23 in pixels and
         //      23*8 isn't even divisible by 14... Would be nice to understand
         //      why these constants are needed though!
         //      this happens, but on my system this size is 75x23 in pixels and
         //      23*8 isn't even divisible by 14... Would be nice to understand
         //      why these constants are needed though!

-        s_sizeBtn.x = (50 * (dc.GetCharWidth() + 1))/4;
-        s_sizeBtn.y = ((14 * dc.GetCharHeight()) + 2)/8;
+        vSizeBtn.x = (50 * (vDc.GetCharWidth() + 1))/4;
+        vSizeBtn.y = ((14 * vDc.GetCharHeight()) + 2)/8;

     }
     }

+    return vSizeBtn;
+} // end of wxButton::GetDefaultSize

 
 

-    return s_sizeBtn;
-}
-
-void wxButton::Command (wxCommandEvent & event)
+void wxButton::Command (
+  wxCommandEvent&                   rEvent
+)

 {
 {

-    ProcessCommand (event);
-}
+    ProcessCommand (rEvent);
+} // end of wxButton::Command

 
 // ----------------------------------------------------------------------------
 // helpers
 
 // ----------------------------------------------------------------------------
 // helpers


@@ -122,53 +216,219 @@ void wxButton::Command (wxCommandEvent & event)
 
 bool wxButton::SendClickEvent()
 {
 
 bool wxButton::SendClickEvent()
 {

-    wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, GetId());
-    event.SetEventObject(this);
+    wxCommandEvent                  vEvent( wxEVT_COMMAND_BUTTON_CLICKED
+                                           ,GetId()
+                                          );

 
 

-    return ProcessCommand(event);
-}
+    vEvent.SetEventObject(this);
+    return ProcessCommand(vEvent);
+} // end of wxButton::SendClickEvent

 
 void wxButton::SetDefault()
 {
 
 void wxButton::SetDefault()
 {

-    wxWindow *parent = GetParent();
-    wxButton *btnOldDefault = NULL;
-    wxPanel *panel = wxDynamicCast(parent, wxPanel);
-    if (panel)
-        panel->SetDefaultItem(this);
+    wxWindow*                       pParent = GetParent();
+
+    wxCHECK_RET( pParent, _T("button without parent?") );
+
+    //
+    // Set this one as the default button both for wxWindows and Windows
+    //
+    wxWindow*                       pWinOldDefault = pParent->SetDefaultItem(this);
+    UpdateDefaultStyle( this
+                       ,pWinOldDefault
+                      );
+} // end of wxButton::SetDefault
+
+void wxButton::SetTmpDefault()
+{
+    wxWindow*                       pParent = GetParent();
+
+    wxCHECK_RET( pParent, _T("button without parent?") );
+
+    wxWindow*                       pWinOldDefault = pParent->GetDefaultItem();
+    pParent->SetTmpDefaultItem(this);
+    if (pWinOldDefault != this)
+    {
+        UpdateDefaultStyle( this
+                           ,pWinOldDefault
+                          );
+    }
+    //else: no styles to update
+} // end of wxButton::SetTmpDefault
+
+void wxButton::UnsetTmpDefault()
+{
+    wxWindow*                       pParent = GetParent();
+
+    wxCHECK_RET( pParent, _T("button without parent?") );
+
+    pParent->SetTmpDefaultItem(NULL);
+
+    wxWindow*                       pWinOldDefault = pParent->GetDefaultItem();
+
+    if (pWinOldDefault != this)
+    {
+        UpdateDefaultStyle( pWinOldDefault
+                           ,this
+                          );
+    }
+    //else: we had been default before anyhow
+} // end of wxButton::UnsetTmpDefault
+
+void wxButton::UpdateDefaultStyle(
+  wxWindow*                         pWinDefault
+, wxWindow*                         pWinOldDefault)
+{
+    wxButton*                       pBtnOldDefault = wxDynamicCast(pWinOldDefault, wxButton);
+    long                            lStyle;
+
+    if ( pBtnOldDefault && pBtnOldDefault != pWinDefault )
+    {
+        lStyle = ::WinQueryWindowULong(GetHwndOf(pBtnOldDefault), QWL_STYLE);
+        if ((lStyle & BS_USERBUTTON) != BS_USERBUTTON)
+        {
+            lStyle &= ~BS_DEFAULT;
+            ::WinSetWindowULong(GetHwndOf(pBtnOldDefault), QWL_STYLE, lStyle);
+        }
+        else
+        {
+            // redraw the button - it will notice itself that it's not the
+            // default one any longer
+            pBtnOldDefault->Refresh();
+        }
+    }
+
+    wxButton*                       pBtnDefault = wxDynamicCast(pWinDefault, wxButton);

 
 

-    // TODO: make button the default
-}
+    if (pBtnDefault)
+    {
+        lStyle = ::WinQueryWindowULong(GetHwndOf(pBtnDefault), QWL_STYLE);
+        if ((lStyle & BS_USERBUTTON) != BS_USERBUTTON)
+        {
+            lStyle != BS_DEFAULT;
+            ::WinSetWindowULong(GetHwndOf(pBtnDefault), QWL_STYLE, lStyle);
+        }
+    }
+} // end of wxButton::UpdateDefaultStyle

 
 // ----------------------------------------------------------------------------
 // event/message handlers
 // ----------------------------------------------------------------------------
 
 
 // ----------------------------------------------------------------------------
 // event/message handlers
 // ----------------------------------------------------------------------------
 

-bool wxButton::OS2Command(WXUINT param, WXWORD id)
+bool wxButton::OS2Command(
+  WXUINT                            uParam
+, WXWORD                            wId
+)

 {
 {

-    bool processed = FALSE;
-    // TODO
-    /*
-    switch ( param )
+    bool                            bProcessed = FALSE;
+
+    switch (uParam)

     {
     {

-        case 1:                                             // 1 for accelerator
-        case BN_CLICKED:
-            processed = SendClickEvent();
+        case BN_CLICKED:            // normal buttons send this
+        case BN_DBLCLICKED:         // owner-drawn ones also send this
+            bProcessed = SendClickEvent();

             break;
     }
             break;
     }

-    */
-    return processed;
-}
-
-WXHBRUSH wxButton::OnCtlColor(WXHDC pDC,
-                              WXHWND pWnd,
-                              WXUINT nCtlColor,
-                              WXUINT message,
-                              WXWPARAM wParam,
-                              WXLPARAM lParam)
+    return bProcessed;
+} // end of wxButton::OS2Command
+
+WXHBRUSH wxButton::OnCtlColor(
+  WXHDC                             pDC
+, WXHWND                            pWnd
+, WXUINT                            nCtlColor
+, WXUINT                            uMessage
+, WXWPARAM                          wParam
+, WXLPARAM                          lParam
+)
+{
+    wxBrush*                        pBackgroundBrush = wxTheBrushList->FindOrCreateBrush( GetBackgroundColour()
+                                                                                         ,wxSOLID
+                                                                                        );
+
+    return (WXHBRUSH)pBackgroundBrush->GetResourceHandle();
+} // end of wxButton::OnCtlColor
+
+void wxButton::MakeOwnerDrawn()
+{
+    long                            lStyle = 0L;
+
+    lStyle = ::WinQueryWindowULong(GetHwnd(), QWL_STYLE);
+    if ((lStyle & BS_USERBUTTON) != BS_USERBUTTON)
+    {
+        //
+        // Make it so
+        //
+        lStyle |= BS_USERBUTTON;
+        ::WinSetWindowULong(GetHwnd(), QWL_STYLE, lStyle);
+    }
+} // end of wxButton::MakeOwnerDrawn
+
+WXDWORD wxButton::OS2GetStyle(
+  long                              lStyle
+, WXDWORD*                          pdwExstyle
+) const
+{
+    //
+    // Buttons never have an external border, they draw their own one
+    //
+    WXDWORD                         dwStyle = wxControl::OS2GetStyle( (lStyle & ~wxBORDER_MASK) | wxBORDER_NONE
+                                                                     ,pdwExstyle
+                                                                    );
+
+    //
+    // We must use WS_CLIPSIBLINGS with the buttons or they would draw over
+    // each other in any resizeable dialog which has more than one button in
+    // the bottom
+    //
+    dwStyle |= WS_CLIPSIBLINGS;
+    return dwStyle;
+} // end of wxButton::OS2GetStyle
+
+MRESULT wxButton::WindowProc(
+  WXUINT                            uMsg
+, WXWPARAM                          wParam
+, WXLPARAM                          lParam
+)

 {
 {

-  wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
+    //
+    // When we receive focus, we want to temporary become the default button in
+    // our parent panel so that pressing "Enter" would activate us -- and when
+    // losing it we should restore the previous default button as well
+    //
+    if (uMsg == WM_SETFOCUS)
+    {
+        if (SHORT1FROMMP(lParam) == TRUE)
+            SetTmpDefault();
+        else
+            UnsetTmpDefault();
+
+        //
+        // Let the default processign take place too
+        //
+    }

 
 

-  return (WXHBRUSH) backgroundBrush->GetResourceHandle();
-}
+    else if (uMsg == WM_BUTTON1DBLCLK)
+    {
+        //
+        // Emulate a click event to force an owner-drawn button to change its
+        // appearance - without this, it won't do it
+        //
+        (void)wxControl::OS2WindowProc( WM_BUTTON1DOWN
+                                       ,wParam
+                                       ,lParam
+                                      );
+
+        //
+        // And conitnue with processing the message normally as well
+        //
+    }

 
 

+    //
+    // Let the base class do all real processing
+    //
+    return (wxControl::OS2WindowProc( uMsg
+                                     ,wParam
+                                     ,lParam
+                                    ));
+} // end of wxWindowProc