Don't do the wx cleanup if wxPython didn't do the initialization.

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

diff --git a/src/msw/button.cpp b/src/msw/button.cpp
index 5c30bf807b52df929c0bfecac15f0bb834326850..2cafeca17ec76c63158349cf24ff0685423177c4 100644 (file)
--- a/src/msw/button.cpp
+++ b/src/msw/button.cpp
@@ -28,6 +28,8 @@
     #pragma hdrstop
 #endif
 
     #pragma hdrstop
 #endif
 

+#if wxUSE_BUTTON
+

 #ifndef WX_PRECOMP
     #include "wx/button.h"
     #include "wx/brush.h"
 #ifndef WX_PRECOMP
     #include "wx/button.h"
     #include "wx/brush.h"


@@ -66,62 +68,64 @@ bool wxButton::Create(wxWindow *parent,
                       const wxValidator& validator,
                       const wxString& name)
 {
                       const wxValidator& validator,
                       const wxString& name)
 {

-    if ( !CreateBase(parent, id, pos, size, style, validator, name) )
+    if ( !CreateControl(parent, id, pos, size, style, validator, name) )

         return FALSE;
 
         return FALSE;
 

-    parent->AddChild((wxButton *)this);
-
-    m_backgroundColour = parent->GetBackgroundColour();
-    m_foregroundColour = parent->GetForegroundColour();
-
-
-    m_hWnd = (WXHWND)CreateWindowEx
-                     (
-                      MakeExtendedStyle(m_windowStyle),
-                      wxT("BUTTON"),
-                      label,
-                      WS_VISIBLE | WS_TABSTOP | WS_CHILD,
-                      0, 0, 0, 0,
-                      GetWinHwnd(parent),
-                      (HMENU)m_windowId,
-                      wxGetInstance(),
-                      NULL
-                     );
-
-    // Subclass again for purposes of dialog editing mode
-    SubclassWin(m_hWnd);
-
-    SetFont(parent->GetFont());
+    WXDWORD exstyle;
+    WXDWORD msStyle = MSWGetStyle(style, &exstyle);

 
 

-    SetSize(pos.x, pos.y, size.x, size.y);
-
-    // bad hack added by Robert to make buttons at least
-    // 80 pixels wide. There are probably better ways...
-    // TODO. FIXME.
-    wxSize nsize( GetSize() );
-    if ((nsize.x < 80) || (nsize.y < 23))
+#ifdef __WIN32__
+    // if the label contains several lines we must explicitly tell the button
+    // about it or it wouldn't draw it correctly ("\n"s would just appear as
+    // black boxes)
+    //
+    // NB: we do it here and not in MSWGetStyle() because we need the label
+    //     value and m_label is not set yet when MSWGetStyle() is called;
+    //     besides changing BS_MULTILINE during run-time is pointless anyhow
+    if ( label.find(_T('\n')) != wxString::npos )

     {
     {

-        if ((size.x == -1) && (nsize.x < 80))
-            nsize.x = 80;
-        if ((size.y == -1) && (nsize.y < 23))
-            nsize.y = 23;
-        SetSize( nsize );
+        msStyle |= BS_MULTILINE;

     }
     }

+#endif // __WIN32__

 
 

-    return TRUE;
+    return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle);

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

-    wxPanel *panel = wxDynamicCast(GetParent(), wxPanel);
-    if ( panel )
-    {
-        if ( panel->GetDefaultItem() == this )
-        {
-            // don't leave the panel with invalid default item
-            panel->SetDefaultItem(NULL);
-        }
-    }
+}
+
+// ----------------------------------------------------------------------------
+// flags
+// ----------------------------------------------------------------------------
+
+WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const
+{
+    // buttons never have an external border, they draw their own one
+    WXDWORD msStyle = wxControl::MSWGetStyle
+                      (
+                        (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle
+                      );
+
+    // 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
+    msStyle |= WS_CLIPSIBLINGS;
+
+#ifdef __WIN32__
+    // don't use "else if" here: weird as it is, but you may combine wxBU_LEFT
+    // and wxBU_RIGHT to get BS_CENTER!
+    if ( style & wxBU_LEFT )
+        msStyle |= BS_LEFT;
+    if ( style & wxBU_RIGHT )
+        msStyle |= BS_RIGHT;
+    if ( style & wxBU_TOP )
+        msStyle |= BS_TOP;
+    if ( style & wxBU_BOTTOM )
+        msStyle |= BS_BOTTOM;
+#endif // __WIN32__
+
+    return msStyle;

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -143,18 +147,22 @@ wxSize wxButton::DoGetBestSize() const
     // the button height is proportional to the height of the font used
     int hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar);
 
     // the button height is proportional to the height of the font used
     int hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar);
 

-    return wxSize(wBtn, hBtn);
+    wxSize sz = GetDefaultSize();
+    if (wBtn > sz.x) sz.x = wBtn;
+    if (hBtn > sz.y) sz.y = hBtn;
+
+    return sz;

 }
 
 /* static */
 }
 
 /* static */

-wxSize wxButton::GetDefaultSize()
+wxSize wxButtonBase::GetDefaultSize()

 {
     static wxSize s_sizeBtn;
 
     if ( s_sizeBtn.x == 0 )
     {
         wxScreenDC dc;
 {
     static wxSize s_sizeBtn;
 
     if ( s_sizeBtn.x == 0 )
     {
         wxScreenDC dc;

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

 
         // the size of a standard button in the dialog units is 50x14,
         // translate this to pixels
 
         // the size of a standard button in the dialog units is 50x14,
         // translate this to pixels


@@ -178,20 +186,20 @@ wxSize wxButton::GetDefaultSize()
 void wxButton::SetDefault()
 {
     wxWindow *parent = GetParent();
 void wxButton::SetDefault()
 {
     wxWindow *parent = GetParent();

-    wxButton *btnOldDefault = NULL;
-    wxPanel *panel = wxDynamicCast(parent, wxPanel);
-    if ( panel )
+    wxButton *btnOldDefault;
+    if ( parent )

     {
     {

-        btnOldDefault = panel->GetDefaultItem();
-        panel->SetDefaultItem(this);
-    }
+        wxWindow *winOldDefault = parent->SetDefaultItem(this);
+        btnOldDefault = wxDynamicCast(winOldDefault, wxButton);

 
 

-    if ( parent )
+        ::SendMessage(GetWinHwnd(parent), DM_SETDEFID, m_windowId, 0L);
+    }
+    else // is a button without parent really normal?

     {
     {

-        SendMessage(GetWinHwnd(parent), DM_SETDEFID, m_windowId, 0L);
+        btnOldDefault = NULL;

     }
 
     }
 

-    if ( btnOldDefault )
+    if ( btnOldDefault && btnOldDefault != this )

     {
         // remove the BS_DEFPUSHBUTTON style from the other button
         long style = GetWindowLong(GetHwndOf(btnOldDefault), GWL_STYLE);
     {
         // remove the BS_DEFPUSHBUTTON style from the other button
         long style = GetWindowLong(GetHwndOf(btnOldDefault), GWL_STYLE);


@@ -241,13 +249,14 @@ void wxButton::Command(wxCommandEvent & event)
 // event/message handlers
 // ----------------------------------------------------------------------------
 
 // event/message handlers
 // ----------------------------------------------------------------------------
 

-bool wxButton::MSWCommand(WXUINT param, WXWORD id)
+bool wxButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))

 {
     bool processed = FALSE;
     switch ( param )
     {
 {
     bool processed = FALSE;
     switch ( param )
     {

-        case 1: // means that the message came from an accelerator
-        case BN_CLICKED:
+        case 1:                     // message came from an accelerator
+        case BN_CLICKED:            // normal buttons send this
+        case BN_DOUBLECLICKED:      // owner-drawn ones also send this

             processed = SendClickEvent();
             break;
     }
             processed = SendClickEvent();
             break;
     }


@@ -265,6 +274,14 @@ long wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 
         // let the default processign take place too
     }
 
         // let the default processign take place too
     }

+    else if ( nMsg == WM_LBUTTONDBLCLK )
+    {
+        // emulate a click event to force an owner-drawn button to change its
+        // appearance - without this, it won't do it
+        (void)wxControl::MSWWindowProc(WM_LBUTTONDOWN, wParam, lParam);
+
+        // and conitnue with processing the message normally as well
+    }

 
     // let the base class do all real processing
     return wxControl::MSWWindowProc(nMsg, wParam, lParam);
 
     // let the base class do all real processing
     return wxControl::MSWWindowProc(nMsg, wParam, lParam);


@@ -305,7 +322,7 @@ static void DrawRect(HDC hdc, const RECT& r)
 void wxButton::MakeOwnerDrawn()
 {
     long style = GetWindowLong(GetHwnd(), GWL_STYLE);
 void wxButton::MakeOwnerDrawn()
 {
     long style = GetWindowLong(GetHwnd(), GWL_STYLE);

-    if ( !(style & BS_OWNERDRAW) )
+    if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW )

     {
         // make it so
         style |= BS_OWNERDRAW;
     {
         // make it so
         style |= BS_OWNERDRAW;


@@ -347,10 +364,11 @@ bool wxButton::SetForegroundColour(const wxColour &colour)
    The button frame looks like this normally:
 
    WWWWWWWWWWWWWWWWWWB
    The button frame looks like this normally:
 
    WWWWWWWWWWWWWWWWWWB

-   W                GB
-   W                GB
-   W                GB  where W, G, B are white, grey and black pixels
-   W                GB
+   WHHHHHHHHHHHHHHHHGB  W = white       (HILIGHT)
+   WH               GB  H = light grey  (LIGHT)
+   WH               GB  G = dark grey   (SHADOW)
+   WH               GB  B = black       (DKSHADOW)
+   WH               GB

    WGGGGGGGGGGGGGGGGGB
    BBBBBBBBBBBBBBBBBBB
 
    WGGGGGGGGGGGGGGGGGB
    BBBBBBBBBBBBBBBBBBB
 


@@ -359,8 +377,9 @@ bool wxButton::SetForegroundColour(const wxColour &colour)
 
    BBBBBBBBBBBBBBBBBBB
    BWWWWWWWWWWWWWWWWBB
 
    BBBBBBBBBBBBBBBBBBB
    BWWWWWWWWWWWWWWWWBB

-   BW              GBB
-   BW              GBB
+   BWHHHHHHHHHHHHHHGBB
+   BWH             GBB
+   BWH             GBB

    BWGGGGGGGGGGGGGGGBB
    BBBBBBBBBBBBBBBBBBB
    BBBBBBBBBBBBBBBBBBB
    BWGGGGGGGGGGGGGGGBB
    BBBBBBBBBBBBBBBBBBB
    BBBBBBBBBBBBBBBBBBB


@@ -372,6 +391,7 @@ bool wxButton::SetForegroundColour(const wxColour &colour)
    BG               GB
    BG               GB
    BG               GB
    BG               GB
    BG               GB
    BG               GB

+   BG               GB

    BGGGGGGGGGGGGGGGGGB
    BBBBBBBBBBBBBBBBBBB
 */
    BGGGGGGGGGGGGGGGGGB
    BBBBBBBBBBBBBBBBBBB
 */


@@ -382,9 +402,10 @@ static void DrawButtonFrame(HDC hdc, const RECT& rectBtn,
     RECT r;
     CopyRect(&r, &rectBtn);
 
     RECT r;
     CopyRect(&r, &rectBtn);
 

-    HPEN hpenBlack = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DDKSHADOW)),
-         hpenGrey = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DSHADOW)),
-         hpenWhite = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DHILIGHT));
+    HPEN hpenBlack   = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DDKSHADOW)),
+         hpenGrey    = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DSHADOW)),
+         hpenLightGr = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DLIGHT)),
+         hpenWhite   = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DHILIGHT));

 
     HPEN hpenOld = (HPEN)SelectObject(hdc, hpenBlack);
 
 
     HPEN hpenOld = (HPEN)SelectObject(hdc, hpenBlack);
 


@@ -418,6 +439,11 @@ static void DrawButtonFrame(HDC hdc, const RECT& rectBtn,
         LineTo(hdc, r.left, r.top);
         LineTo(hdc, r.right, r.top);
 
         LineTo(hdc, r.left, r.top);
         LineTo(hdc, r.right, r.top);
 

+        (void)SelectObject(hdc, hpenLightGr);
+        MoveToEx(hdc, r.left + 1, r.bottom - 2, NULL);
+        LineTo(hdc, r.left + 1, r.top + 1);
+        LineTo(hdc, r.right - 1, r.top + 1);
+

         (void)SelectObject(hdc, hpenGrey);
         MoveToEx(hdc, r.left + 1, r.bottom - 1, NULL);
         LineTo(hdc, r.right - 1, r.bottom - 1);
         (void)SelectObject(hdc, hpenGrey);
         MoveToEx(hdc, r.left + 1, r.bottom - 1, NULL);
         LineTo(hdc, r.right - 1, r.bottom - 1);


@@ -426,6 +452,7 @@ static void DrawButtonFrame(HDC hdc, const RECT& rectBtn,
 
     (void)SelectObject(hdc, hpenOld);
     DeleteObject(hpenWhite);
 
     (void)SelectObject(hdc, hpenOld);
     DeleteObject(hpenWhite);

+    DeleteObject(hpenLightGr);

     DeleteObject(hpenGrey);
     DeleteObject(hpenBlack);
 }
     DeleteObject(hpenGrey);
     DeleteObject(hpenBlack);
 }


@@ -475,6 +502,12 @@ bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
         DrawFocusRect(hdc, &rectFocus);
     }
 
         DrawFocusRect(hdc, &rectFocus);
     }
 

+    if ( pushed )
+    {
+        // the label is shifted by 1 pixel to create "pushed" effect
+        OffsetRect(&rectBtn, 1, 1);
+    }
+

     DrawButtonText(hdc, &rectBtn, GetLabel(),
                    state & ODS_DISABLED ? GetSysColor(COLOR_GRAYTEXT)
                                         : colFg);
     DrawButtonText(hdc, &rectBtn, GetLabel(),
                    state & ODS_DISABLED ? GetSysColor(COLOR_GRAYTEXT)
                                         : colFg);


@@ -485,3 +518,6 @@ bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
 }
 
 #endif // __WIN32__
 }
 
 #endif // __WIN32__

+
+#endif // wxUSE_BUTTON
+