Add wxItemContainer::DetachClientObject() and use it in wxRearrangeList.

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

diff --git a/src/msw/statbox.cpp b/src/msw/statbox.cpp
index 5ceea4334188176231fcbf6379a19701b871b1d0..3c2dfcf06d00a72faf08c8b3b91137649cb34c50 100644 (file)
--- a/src/msw/statbox.cpp
+++ b/src/msw/statbox.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        msw/statbox.cpp
+// Name:        src/msw/statbox.cpp

 // Purpose:     wxStaticBox
 // Author:      Julian Smart
 // Modified by:
 // Purpose:     wxStaticBox
 // Author:      Julian Smart
 // Modified by:


@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "statbox.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 


@@ -30,22 +26,29 @@
 
 #if wxUSE_STATBOX
 
 
 #if wxUSE_STATBOX
 

+#include "wx/statbox.h"
+

 #ifndef WX_PRECOMP
     #include "wx/app.h"
     #include "wx/dcclient.h"
 #ifndef WX_PRECOMP
     #include "wx/app.h"
     #include "wx/dcclient.h"

+    #include "wx/dcmemory.h"
+    #include "wx/image.h"

 #endif
 
 #endif
 

-#include "wx/statbox.h"

 #include "wx/notebook.h"
 #include "wx/sysopt.h"
 
 #include "wx/notebook.h"
 #include "wx/sysopt.h"
 

+#include "wx/msw/uxtheme.h"

 #include "wx/msw/private.h"
 #include "wx/msw/private.h"

+#include "wx/msw/missing.h"
+#include "wx/msw/dc.h"

 
 

-// under CE this style is not defined but we don't need to make static boxes
-// transparent there neither
-#ifndef WS_EX_TRANSPARENT
-    #define WS_EX_TRANSPARENT 0
-#endif
+// the values coincide with those in tmschema.h
+#define BP_GROUPBOX 4
+
+#define GBS_NORMAL 1
+
+#define TMT_FONT 210

 
 // ----------------------------------------------------------------------------
 // wxWin macros
 
 // ----------------------------------------------------------------------------
 // wxWin macros


@@ -125,6 +128,14 @@ bool wxStaticBox::Create(wxWindow *parent,
     if ( !MSWCreateControl(wxT("BUTTON"), label, pos, size) )
         return false;
 
     if ( !MSWCreateControl(wxT("BUTTON"), label, pos, size) )
         return false;
 

+    // Always use LTR layout. Otherwise, the label would be mirrored.
+    SetLayoutDirection(wxLayout_LeftToRight);
+
+#ifndef __WXWINCE__
+    if (!wxSystemOptions::IsFalse(wxT("msw.staticbox.optimized-paint")))
+        Connect(wxEVT_PAINT, wxPaintEventHandler(wxStaticBox::OnPaint));
+#endif // !__WXWINCE__
+

     return true;
 }
 
     return true;
 }
 


@@ -132,10 +143,29 @@ WXDWORD wxStaticBox::MSWGetStyle(long style, WXDWORD *exstyle) const
 {
     long styleWin = wxStaticBoxBase::MSWGetStyle(style, exstyle);
 
 {
     long styleWin = wxStaticBoxBase::MSWGetStyle(style, exstyle);
 

+    // no need for it anymore, must be removed for wxRadioBox child
+    // buttons to be able to repaint themselves
+    styleWin &= ~WS_CLIPCHILDREN;
+

     if ( exstyle )
     if ( exstyle )

-        *exstyle = WS_EX_TRANSPARENT;
+    {
+#ifndef __WXWINCE__
+        if (wxSystemOptions::IsFalse(wxT("msw.staticbox.optimized-paint")))
+            *exstyle = WS_EX_TRANSPARENT;
+        else
+#endif
+            *exstyle = 0;
+    }
+
+    styleWin |= BS_GROUPBOX;

 
 

-    return styleWin | BS_GROUPBOX;
+    if ( wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft )
+    {
+        // Make sure label is on the right
+        styleWin |= BS_RIGHT;
+    }
+
+    return styleWin;

 }
 
 wxSize wxStaticBox::DoGetBestSize() const
 }
 
 wxSize wxStaticBox::DoGetBestSize() const


@@ -144,46 +174,396 @@ wxSize wxStaticBox::DoGetBestSize() const
     wxGetCharSize(GetHWND(), &cx, &cy, GetFont());
 
     int wBox;
     wxGetCharSize(GetHWND(), &cx, &cy, GetFont());
 
     int wBox;

-    GetTextExtent(wxGetWindowText(m_hWnd), &wBox, &cy);
+    GetTextExtent(GetLabelText(wxGetWindowText(m_hWnd)), &wBox, &cy);

 
     wBox += 3*cx;
     int hBox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
 
 
     wBox += 3*cx;
     int hBox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
 

-    return wxSize(wBox, hBox);
+    wxSize best(wBox, hBox);
+    CacheBestSize(best);
+    return best;

 }
 
 }
 

-WXLRESULT wxStaticBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+void wxStaticBox::GetBordersForSizer(int *borderTop, int *borderOther) const

 {
 {

+    wxStaticBoxBase::GetBordersForSizer(borderTop, borderOther);
+
+    // need extra space, don't know how much but this seems to be enough
+    *borderTop += GetCharHeight()/3;
+}
+
+// all the hacks below are not necessary for WinCE

 #ifndef __WXWINCE__
 #ifndef __WXWINCE__

-    switch ( nMsg )
+
+WXLRESULT wxStaticBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+    if ( nMsg == WM_NCHITTEST )
+    {
+        // This code breaks some other processing such as enter/leave tracking
+        // so it's off by default.
+
+        static int s_useHTClient = -1;
+        if (s_useHTClient == -1)
+            s_useHTClient = wxSystemOptions::GetOptionInt(wxT("msw.staticbox.htclient"));
+        if (s_useHTClient == 1)
+        {
+            int xPos = GET_X_LPARAM(lParam);
+            int yPos = GET_Y_LPARAM(lParam);
+
+            ScreenToClient(&xPos, &yPos);
+
+            // Make sure you can drag by the top of the groupbox, but let
+            // other (enclosed) controls get mouse events also
+            if ( yPos < 10 )
+                return (long)HTCLIENT;
+        }
+    }
+
+    if ( nMsg == WM_PRINTCLIENT )
+    {
+        // we have to process WM_PRINTCLIENT ourselves as otherwise child
+        // windows' background (eg buttons in radio box) would never be drawn
+        // unless we have a parent with non default background
+
+        // so check first if we have one
+        if ( !HandlePrintClient((WXHDC)wParam) )
+        {
+            // no, we don't, erase the background ourselves
+            // (don't use our own) - see PaintBackground for explanation
+            wxBrush brush(GetParent()->GetBackgroundColour());
+            wxFillRect(GetHwnd(), (HDC)wParam, GetHbrushOf(brush));
+        }
+
+        return 0;
+    }
+
+    return wxControl::MSWWindowProc(nMsg, wParam, lParam);
+}
+
+// ----------------------------------------------------------------------------
+// static box drawing
+// ----------------------------------------------------------------------------
+
+/*
+   We draw the static box ourselves because it's the only way to prevent it
+   from flickering horribly on resize (because everything inside the box is
+   erased twice: once when the box itself is repainted and second time when
+   the control inside it is repainted) without using WS_EX_TRANSPARENT style as
+   we used to do and which resulted in other problems.
+ */
+
+// MSWGetRegionWithoutSelf helper: removes the given rectangle from region
+static inline void
+SubtractRectFromRgn(HRGN hrgn, int left, int top, int right, int bottom)
+{
+    AutoHRGN hrgnRect(::CreateRectRgn(left, top, right, bottom));
+    if ( !hrgnRect )
+    {
+        wxLogLastError(wxT("CreateRectRgn()"));
+        return;
+    }
+
+    ::CombineRgn(hrgn, hrgn, hrgnRect, RGN_DIFF);
+}
+
+void wxStaticBox::MSWGetRegionWithoutSelf(WXHRGN hRgn, int w, int h)
+{
+    HRGN hrgn = (HRGN)hRgn;
+
+    // remove the area occupied by the static box borders from the region
+    int borderTop, border;
+    GetBordersForSizer(&borderTop, &border);
+
+    // top
+    SubtractRectFromRgn(hrgn, 0, 0, w, borderTop);
+
+    // bottom
+    SubtractRectFromRgn(hrgn, 0, h - border, w, h);
+
+    // left
+    SubtractRectFromRgn(hrgn, 0, 0, border, h);
+
+    // right
+    SubtractRectFromRgn(hrgn, w - border, 0, w, h);
+}
+
+WXHRGN wxStaticBox::MSWGetRegionWithoutChildren()
+{
+    RECT rc;
+    ::GetWindowRect(GetHwnd(), &rc);
+    HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
+    bool foundThis = false;
+
+    // iterate over all child windows (not just wxWindows but all windows)
+    for ( HWND child = ::GetWindow(GetHwndOf(GetParent()), GW_CHILD);
+          child;
+          child = ::GetWindow(child, GW_HWNDNEXT) )

     {
     {

-        case WM_NCHITTEST:
+        if ( ! ::IsWindowVisible(child) )
+        {
+            // if the window isn't visible then it doesn't need clipped
+            continue;
+        }
+
+        LONG style = ::GetWindowLong(child, GWL_STYLE);
+        wxString str(wxGetWindowClass(child));
+        str.UpperCase();
+        if ( str == wxT("BUTTON") && (style & BS_GROUPBOX) == BS_GROUPBOX )
+        {
+            if ( child == GetHwnd() )
+                foundThis = true;
+
+            // Any static boxes below this one in the Z-order can't be clipped
+            // since if we have the case where a static box with a low Z-order
+            // is nested inside another static box with a high Z-order then the
+            // nested static box would be painted over. Doing it this way
+            // unfortunately results in flicker if the Z-order of nested static
+            // boxes is not inside (lowest) to outside (highest) but at least
+            // they are still shown.
+            if ( foundThis )
+                continue;
+        }
+
+        ::GetWindowRect(child, &rc);
+        if ( ::RectInRegion(hrgn, &rc) )
+        {
+            // need to remove WS_CLIPSIBLINGS from all sibling windows
+            // that are within this staticbox if set
+            if ( style & WS_CLIPSIBLINGS )

             {
             {

-                // This code breaks some other processing such as enter/leave tracking
-                // so it's off by default.
-                                
-                static int s_useHTClient = -1;
-                if (s_useHTClient == -1)
-                    s_useHTClient = wxSystemOptions::GetOptionInt(wxT("msw.staticbox.htclient"));
-                if (s_useHTClient == 1)
-                {
-                    int xPos = LOWORD(lParam);  // horizontal position of cursor
-                    int yPos = HIWORD(lParam);  // vertical position of cursor
+                style &= ~WS_CLIPSIBLINGS;
+                ::SetWindowLong(child, GWL_STYLE, style);
+
+                // MSDN: "If you have changed certain window data using
+                // SetWindowLong, you must call SetWindowPos to have the
+                // changes take effect."
+                ::SetWindowPos(child, NULL, 0, 0, 0, 0,
+                               SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
+                               SWP_FRAMECHANGED);
+            }

 
 

-                    ScreenToClient(&xPos, &yPos);
+            AutoHRGN hrgnChild(::CreateRectRgnIndirect(&rc));
+            ::CombineRgn(hrgn, hrgn, hrgnChild, RGN_DIFF);
+        }
+    }

 
 

-                    // Make sure you can drag by the top of the groupbox, but let
-                    // other (enclosed) controls get mouse events also
-                    if ( yPos < 10 )
-                        return (long)HTCLIENT;
+    return (WXHRGN)hrgn;
+}
+
+// helper for OnPaint(): really erase the background, i.e. do it even if we
+// don't have any non default brush for doing it (DoEraseBackground() doesn't
+// do anything in such case)
+void wxStaticBox::PaintBackground(wxDC& dc, const RECT& rc)
+{
+    // note that we do not use the box background colour here, it shouldn't
+    // apply to its interior for several reasons:
+    //  1. wxGTK doesn't do it
+    //  2. controls inside the box don't get correct bg colour because they
+    //     are not our children so we'd have some really ugly colour mix if
+    //     we did it
+    //  3. this is backwards compatible behaviour and some people rely on it,
+    //     see http://groups.google.com/groups?selm=4252E932.3080801%40able.es
+    wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
+    HBRUSH hbr = MSWGetBgBrush(impl->GetHDC());
+
+    // if there is no special brush for painting this control, just use the
+    // solid background colour
+    wxBrush brush;
+    if ( !hbr )
+    {
+        brush = wxBrush(GetParent()->GetBackgroundColour());
+        hbr = GetHbrushOf(brush);
+    }
+
+    ::FillRect(GetHdcOf(*impl), &rc, hbr);
+}
+
+void wxStaticBox::PaintForeground(wxDC& dc, const RECT& rc)
+{
+    wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
+    MSWDefWindowProc(WM_PAINT, (WPARAM)GetHdcOf(*impl), 0);
+
+    // when using XP themes, neither setting the text colour nor transparent
+    // background mode doesn't change anything: the static box def window proc
+    // still draws the label in its own colours, so we need to redraw the text
+    // ourselves if we have a non default fg colour
+    if ( m_hasFgCol && wxUxThemeEngine::GetIfActive() )
+    {
+        // draw over the text in default colour in our colour
+        HDC hdc = GetHdcOf(*impl);
+        ::SetTextColor(hdc, GetForegroundColour().GetPixel());
+
+        const bool rtl = wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft;
+        if ( rtl )
+            ::SetTextAlign(hdc, TA_RTLREADING | TA_RIGHT);
+
+        // Get dimensions of the label
+        const wxString label = GetLabel();
+
+        // choose the correct font
+        AutoHFONT font;
+        SelectInHDC selFont;
+        if ( m_hasFont )
+        {
+            selFont.Init(hdc, GetHfontOf(GetFont()));
+        }
+        else // no font set, use the one set by the theme
+        {
+            wxUxThemeHandle hTheme(this, L"BUTTON");
+            if ( hTheme )
+            {
+                // GetThemeFont() expects its parameter to be LOGFONTW and not
+                // LOGFONTA even in ANSI programs and will happily corrupt
+                // memory after the struct end if we pass a LOGFONTA (which is
+                // smaller) to it!
+                LOGFONTW lfw;
+                if ( wxUxThemeEngine::Get()->GetThemeFont
+                                             (
+                                                hTheme,
+                                                hdc,
+                                                BP_GROUPBOX,
+                                                GBS_NORMAL,
+                                                TMT_FONT,
+                                                (LOGFONT *)&lfw
+                                             ) == S_OK )
+                {
+#if wxUSE_UNICODE
+                    // ok, no conversion necessary
+                    const LOGFONT& lf = lfw;
+#else // !wxUSE_UNICODE
+                    // most of the fields are the same in LOGFONTA and LOGFONTW
+                    LOGFONT lf;
+                    memcpy(&lf, &lfw, sizeof(lf));
+
+                    // but the face name must be converted
+                    WideCharToMultiByte(CP_ACP, 0, lfw.lfFaceName, -1,
+                                        lf.lfFaceName, sizeof(lf.lfFaceName),
+                                        NULL, NULL);
+#endif // wxUSE_UNICODE/!wxUSE_UNICODE
+
+                    font.Init(lf);
+                    if ( font )
+                        selFont.Init(hdc, font);

                 }
             }
                 }
             }

-            break;
+        }
+
+        // Get the font extent
+        int width, height;
+        dc.GetTextExtent(wxStripMenuCodes(label, wxStrip_Mnemonics),
+                         &width, &height);
+
+        int x;
+        int y = height;
+
+        // first we need to correctly paint the background of the label
+        // as Windows ignores the brush offset when doing it
+        //
+        // FIXME: value of x is hardcoded as this is what it is on my system,
+        //        no idea if it's true everywhere
+        RECT dimensions = {0, 0, 0, y};
+        if ( !rtl )
+        {
+            x = 9;
+            dimensions.left = x;
+            dimensions.right = x + width;
+        }
+        else
+        {
+            x = rc.right - 7;
+            dimensions.left = x - width;
+            dimensions.right = x;
+        }
+
+        // need to adjust the rectangle to cover all the label background
+        dimensions.left -= 2;
+        dimensions.right += 2;
+        dimensions.bottom += 2;
+
+        if ( UseBgCol() )
+        {
+            // our own background colour should be used for the background of
+            // the label: this is consistent with the behaviour under pre-XP
+            // systems (i.e. without visual themes) and generally makes sense
+            wxBrush brush = wxBrush(GetBackgroundColour());
+            wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
+            ::FillRect(GetHdcOf(*impl), &dimensions, GetHbrushOf(brush));
+        }
+        else // paint parent background
+        {
+            PaintBackground(dc, dimensions);
+        }
+
+        // now draw the text
+        if ( !rtl )
+        {
+            RECT rc2 = { x, 0, x + width, y };
+            ::DrawText(hdc, label.wx_str(), label.length(), &rc2,
+                       DT_SINGLELINE | DT_VCENTER);
+        }
+        else // RTL
+        {
+            RECT rc2 = { x, 0, x - width, y };
+            ::DrawText(hdc, label.wx_str(), label.length(), &rc2,
+                       DT_SINGLELINE | DT_VCENTER | DT_RTLREADING);
+        }

     }
     }

-#endif // !__WXWINCE__
+}

 
 

-    return wxControl::MSWWindowProc(nMsg, wParam, lParam);
+void wxStaticBox::OnPaint(wxPaintEvent& WXUNUSED(event))
+{
+    RECT rc;
+    ::GetClientRect(GetHwnd(), &rc);
+
+    // draw the entire box in a memory DC
+    wxMemoryDC memdc;
+    wxBitmap bitmap(rc.right, rc.bottom);
+    memdc.SelectObject(bitmap);
+
+    PaintBackground(memdc, rc);
+    PaintForeground(memdc, rc);
+
+    // now only blit the static box border itself, not the interior, to avoid
+    // flicker when background is drawn below
+    //
+    // note that it seems to be faster to do 4 small blits here and then paint
+    // directly into wxPaintDC than painting background in wxMemoryDC and then
+    // blitting everything at once to wxPaintDC, this is why we do it like this
+    wxPaintDC dc(this);
+    int borderTop, border;
+    GetBordersForSizer(&borderTop, &border);
+
+    // top
+    dc.Blit(border, 0, rc.right - border, borderTop,
+            &memdc, border, 0);
+    // bottom
+    dc.Blit(border, rc.bottom - border, rc.right - border, border,
+            &memdc, border, rc.bottom - border);
+    // left
+    dc.Blit(0, 0, border, rc.bottom,
+            &memdc, 0, 0);
+    // right (note that upper and bottom right corners were already part of the
+    // first two blits so we shouldn't overwrite them here to avoi flicker)
+    dc.Blit(rc.right - border, borderTop,
+            border, rc.bottom - borderTop - border,
+            &memdc, rc.right - border, borderTop);
+
+
+    // create the region excluding box children
+    AutoHRGN hrgn((HRGN)MSWGetRegionWithoutChildren());
+    RECT rcWin;
+    ::GetWindowRect(GetHwnd(), &rcWin);
+    ::OffsetRgn(hrgn, -rcWin.left, -rcWin.top);
+
+    // and also the box itself
+    MSWGetRegionWithoutSelf((WXHRGN) hrgn, rc.right, rc.bottom);
+    wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
+    HDCClipper clipToBg(GetHdcOf(*impl), hrgn);
+
+    // paint the inside of the box (excluding box itself and child controls)
+    PaintBackground(dc, rc);

 }
 
 }
 

-#endif // wxUSE_STATBOX
+#endif // !__WXWINCE__

 
 

+#endif // wxUSE_STATBOX