/////////////////////////////////////////////////////////////////////////////
-// Name: msw/button.cpp
+// Name: src/msw/button.cpp
// Purpose: wxButton
// Author: Julian Smart
// Modified by:
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "button.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#if wxUSE_BUTTON
+#include "wx/button.h"
+
#ifndef WX_PRECOMP
#include "wx/app.h"
- #include "wx/button.h"
#include "wx/brush.h"
#include "wx/panel.h"
#include "wx/bmpbuttn.h"
#include "wx/settings.h"
#include "wx/dcscreen.h"
+ #include "wx/dcclient.h"
+ #include "wx/toplevel.h"
+ #include "wx/msw/wrapcctl.h"
+ #include "wx/msw/private.h"
+ #include "wx/msw/missing.h"
#endif
-#include "wx/msw/private.h"
+#include "wx/imaglist.h"
+#include "wx/stockitem.h"
+#include "wx/msw/private/button.h"
+#include "wx/msw/private/dc.h"
+#include "wx/private/window.h"
+
+#if wxUSE_MARKUP
+ #include "wx/generic/private/markuptext.h"
+#endif // wxUSE_MARKUP
+
+// set the value for BCM_SETSHIELD (for the UAC shield) if it's not defined in
+// the header
+#ifndef BCM_SETSHIELD
+ #define BCM_SETSHIELD 0x160c
+#endif
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
-IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
-
-// this macro tries to adjust the default button height to a reasonable value
-// using the char height as the base
-#define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10)
+BEGIN_EVENT_TABLE(wxButton, wxButtonBase)
+ EVT_CHAR_HOOK(wxButton::OnCharHook)
+END_EVENT_TABLE()
// ============================================================================
// implementation
bool wxButton::Create(wxWindow *parent,
wxWindowID id,
- const wxString& label,
+ 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))
+ {
+ // On Windows, some buttons aren't supposed to have mnemonics
+ label = wxGetStockLabel
+ (
+ id,
+ id == wxID_OK || id == wxID_CANCEL || id == wxID_CLOSE
+ ? wxSTOCK_NOFLAGS
+ : wxSTOCK_WITH_MNEMONIC
+ );
+ }
+
if ( !CreateControl(parent, id, pos, size, style, validator, name) )
- return FALSE;
+ return false;
WXDWORD exstyle;
WXDWORD msStyle = MSWGetStyle(style, &exstyle);
-#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 )
- {
- msStyle |= BS_MULTILINE;
- }
-#endif // __WIN32__
+ // value and the label is not set yet when MSWGetStyle() is called
+ msStyle |= wxMSWButton::GetMultilineStyle(label);
- return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle);
+ return MSWCreateControl(wxT("BUTTON"), msStyle, pos, size, label, exstyle);
}
wxButton::~wxButton()
{
+ wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
+ if ( tlw && tlw->GetTmpDefaultItem() == this )
+ {
+ UnsetTmpDefault();
+ }
}
// ----------------------------------------------------------------------------
);
// 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
+ // each other in any resizable 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_TOP;
if ( style & wxBU_BOTTOM )
msStyle |= BS_BOTTOM;
-#endif // __WIN32__
+#ifndef __WXWINCE__
+ // flat 2d buttons
+ if ( style & wxNO_BORDER )
+ msStyle |= BS_FLAT;
+#endif // __WXWINCE__
return msStyle;
}
-// ----------------------------------------------------------------------------
-// size management including autosizing
-// ----------------------------------------------------------------------------
-
-wxSize wxButton::DoGetBestSize() const
-{
- int wBtn;
- GetTextExtent(wxGetWindowText(GetHWND()), &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);
-
- // all buttons have at least the standard size unless the user explicitly
- // wants them to be of smaller size and used wxBU_EXACTFIT style when
- // creating the button
- if ( !HasFlag(wxBU_EXACTFIT) )
- {
- wxSize sz = GetDefaultSize();
- if (wBtn > sz.x)
- sz.x = wBtn;
- if (hBtn > sz.y)
- sz.y = hBtn;
-
- return sz;
- }
-
- return wxSize(wBtn, hBtn);
-}
-
/* static */
wxSize wxButtonBase::GetDefaultSize()
{
wxScreenDC dc;
dc.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
- // size of the buttons in the standard dialog - I don't know how
- // 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;
+ // The size of a standard button in the dialog units is 50x14,
+ // translate this to pixels.
+ //
+ // Windows' computes dialog units using average character width over
+ // upper- and lower-case ASCII alphabet and not using the average
+ // character width metadata stored in the font; see
+ // http://support.microsoft.com/default.aspx/kb/145994 for detailed
+ // discussion.
+ //
+ // NB: wxMulDivInt32() is used, because it correctly rounds the result
+
+ const wxSize base = wxPrivate::GetAverageASCIILetterSize(dc);
+ s_sizeBtn.x = wxMulDivInt32(50, base.x, 4);
+ s_sizeBtn.y = wxMulDivInt32(14, base.y, 8);
}
return s_sizeBtn;
// ----------------------------------------------------------------------------
/*
+ The comment below and all this code is probably due to not using WM_NEXTDLGCTL
+ message when changing focus (but just SetFocus() which is not enough), see
+ http://blogs.msdn.com/oldnewthing/archive/2004/08/02/205624.aspx for the
+ full explanation.
+
+ TODO: Do use WM_NEXTDLGCTL and get rid of all this code.
+
+
"Everything you ever wanted to know about the default buttons" or "Why do we
have to do all this?"
NB: all this is quite complicated by now and the worst is that normally
it shouldn't be necessary at all as for the normal Windows programs
DefWindowProc() and IsDialogMessage() take care of all this
- automatically -- however in wxWindows programs this doesn't work for
+ automatically -- however in wxWidgets programs this doesn't work for
nested hierarchies (i.e. a notebook inside a notebook) for unknown
reason and so we have to reproduce all this code ourselves. It would be
very nice if we could avoid doing it.
*/
// set this button as the (permanently) default one in its panel
-void wxButton::SetDefault()
+wxWindow *wxButton::SetDefault()
{
- wxWindow *parent = GetParent();
+ // set this one as the default button both for wxWidgets ...
+ wxWindow *winOldDefault = wxButtonBase::SetDefault();
- wxCHECK_RET( parent, _T("button without parent?") );
+ // ... and Windows
+ SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), false);
+ SetDefaultStyle(this, true);
- // set this one as the default button both for wxWindows ...
- wxWindow *winOldDefault = parent->SetDefaultItem(this);
+ return winOldDefault;
+}
- // ... and Windows
- SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), FALSE);
- SetDefaultStyle(this, TRUE);
+// return the top level parent window if it's not being deleted yet, otherwise
+// return NULL
+static wxTopLevelWindow *GetTLWParentIfNotBeingDeleted(wxWindow *win)
+{
+ for ( ;; )
+ {
+ // IsTopLevel() will return false for a wxTLW being deleted, so we also
+ // need the parent test for this case
+ wxWindow * const parent = win->GetParent();
+ if ( !parent || win->IsTopLevel() )
+ {
+ if ( win->IsBeingDeleted() )
+ return NULL;
+
+ break;
+ }
+
+ win = parent;
+ }
+
+ wxASSERT_MSG( win, wxT("button without top level parent?") );
+
+ wxTopLevelWindow * const tlw = wxDynamicCast(win, wxTopLevelWindow);
+ wxASSERT_MSG( tlw, wxT("logic error in GetTLWParentIfNotBeingDeleted()") );
+
+ return tlw;
}
// set this button as being currently default
void wxButton::SetTmpDefault()
{
- wxWindow *parent = GetParent();
-
- wxCHECK_RET( parent, _T("button without parent?") );
+ wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent());
+ if ( !tlw )
+ return;
- wxWindow *winOldDefault = parent->GetDefaultItem();
- parent->SetTmpDefaultItem(this);
+ wxWindow *winOldDefault = tlw->GetDefaultItem();
+ tlw->SetTmpDefaultItem(this);
- SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), FALSE);
- SetDefaultStyle(this, TRUE);
+ SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), false);
+ SetDefaultStyle(this, true);
}
// unset this button as currently default, it may still stay permanent default
void wxButton::UnsetTmpDefault()
{
- wxWindow *parent = GetParent();
-
- wxCHECK_RET( parent, _T("button without parent?") );
+ wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent());
+ if ( !tlw )
+ return;
- parent->SetTmpDefaultItem(NULL);
+ tlw->SetTmpDefaultItem(NULL);
- wxWindow *winOldDefault = parent->GetDefaultItem();
+ wxWindow *winOldDefault = tlw->GetDefaultItem();
- SetDefaultStyle(this, FALSE);
- SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), TRUE);
+ SetDefaultStyle(this, false);
+ SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), true);
}
/* static */
if ( !wxTheApp->IsActive() )
return;
- // look for a panel-like window
- wxWindow *win = btn->GetParent();
- while ( win && !win->HasFlag(wxTAB_TRAVERSAL) )
- win = win->GetParent();
+ wxWindow * const tlw = wxGetTopLevelParent(btn);
+ wxCHECK_RET( tlw, wxT("button without top level window?") );
- if ( win )
- {
- ::SendMessage(GetHwndOf(win), DM_SETDEFID, btn->GetId(), 0L);
+ ::SendMessage(GetHwndOf(tlw), DM_SETDEFID, btn->GetId(), 0L);
- // sending DM_SETDEFID also changes the button style to
- // BS_DEFPUSHBUTTON so there is nothing more to do
- }
+ // sending DM_SETDEFID also changes the button style to
+ // BS_DEFPUSHBUTTON so there is nothing more to do
}
// then also change the style as needed
// event/message handlers
// ----------------------------------------------------------------------------
+void wxButton::OnCharHook(wxKeyEvent& event)
+{
+ // We want to ensure that the button always processes Enter key events
+ // itself, even if it's inside some control that normally takes over them
+ // (this happens when the button is part of an in-place editor control for
+ // example).
+ if ( event.GetKeyCode() == WXK_RETURN )
+ {
+ // We should ensure that subsequent key events are still generated even
+ // if we did handle EVT_CHAR_HOOK (normally this would suppress their
+ // generation).
+ event.DoAllowNextEvent();
+ }
+ else
+ {
+ event.Skip();
+ }
+}
+
bool wxButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
{
- bool processed = FALSE;
+ bool processed = false;
switch ( param )
{
// NOTE: Apparently older versions (NT 4?) of the common controls send
// BN_DOUBLECLICKED but not a second BN_CLICKED for owner-drawn
- // buttons, so in order to send two EVET_BUTTON events we should
+ // buttons, so in order to send two EVT_BUTTON events we should
// catch both types. Currently (Feb 2003) up-to-date versions of
// win98, win2k and winXP all send two BN_CLICKED messages for
// all button types, so we don't catch BN_DOUBLECLICKED anymore
return processed;
}
-long wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+WXLRESULT wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
{
- // when we receive focus, we want to temporary become the default button in
+ // when we receive focus, we want to temporarily 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 ( nMsg == WM_SETFOCUS )
{
UnsetTmpDefault();
}
- 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 continue with processing the message normally as well
- }
// let the base class do all real processing
- return wxControl::MSWWindowProc(nMsg, wParam, lParam);
+ return wxAnyButton::MSWWindowProc(nMsg, wParam, lParam);
}
// ----------------------------------------------------------------------------
-// owner-drawn buttons support
+// authentication needed handling
// ----------------------------------------------------------------------------
-#ifdef __WIN32__
-
-// drawing helpers
-
-static void DrawButtonText(HDC hdc,
- RECT *pRect,
- const wxString& text,
- COLORREF col)
+bool wxButton::DoGetAuthNeeded() const
{
- COLORREF colOld = SetTextColor(hdc, col);
- int modeOld = SetBkMode(hdc, TRANSPARENT);
-
- // Note: we must have DT_SINGLELINE for DT_VCENTER to work.
- ::DrawText(hdc, text, text.length(), pRect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
-
- SetBkMode(hdc, modeOld);
- SetTextColor(hdc, colOld);
+ return m_authNeeded;
}
-static void DrawRect(HDC hdc, const RECT& r)
+void wxButton::DoSetAuthNeeded(bool show)
{
- wxDrawLine(hdc, r.left, r.top, r.right, r.top);
- wxDrawLine(hdc, r.right, r.top, r.right, r.bottom);
- wxDrawLine(hdc, r.right, r.bottom, r.left, r.bottom);
- wxDrawLine(hdc, r.left, r.bottom, r.left, r.top);
-}
-
-void wxButton::MakeOwnerDrawn()
-{
- long style = GetWindowLong(GetHwnd(), GWL_STYLE);
- if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW )
- {
- // make it so
- style |= BS_OWNERDRAW;
- SetWindowLong(GetHwnd(), GWL_STYLE, style);
- }
-}
-
-bool wxButton::SetBackgroundColour(const wxColour &colour)
-{
- if ( !wxControl::SetBackgroundColour(colour) )
- {
- // nothing to do
- return FALSE;
- }
-
- MakeOwnerDrawn();
-
- Refresh();
-
- return TRUE;
-}
-
-bool wxButton::SetForegroundColour(const wxColour &colour)
-{
- if ( !wxControl::SetForegroundColour(colour) )
- {
- // nothing to do
- return FALSE;
- }
-
- MakeOwnerDrawn();
-
- Refresh();
-
- return TRUE;
-}
-
-/*
- The button frame looks like this normally:
-
- WWWWWWWWWWWWWWWWWWB
- 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
-
- When the button is selected, the button becomes like this (the total button
- size doesn't change):
-
- BBBBBBBBBBBBBBBBBBB
- BWWWWWWWWWWWWWWWWBB
- BWHHHHHHHHHHHHHHGBB
- BWH GBB
- BWH GBB
- BWGGGGGGGGGGGGGGGBB
- BBBBBBBBBBBBBBBBBBB
- BBBBBBBBBBBBBBBBBBB
-
- When the button is pushed (while selected) it is like:
-
- BBBBBBBBBBBBBBBBBBB
- BGGGGGGGGGGGGGGGGGB
- BG GB
- BG GB
- BG GB
- BG GB
- BGGGGGGGGGGGGGGGGGB
- BBBBBBBBBBBBBBBBBBB
-*/
-
-static void DrawButtonFrame(HDC hdc, const RECT& rectBtn,
- bool selected, bool pushed)
-{
- RECT r;
- CopyRect(&r, &rectBtn);
-
- 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);
-
- r.right--;
- r.bottom--;
-
- if ( pushed )
- {
- DrawRect(hdc, r);
-
- (void)SelectObject(hdc, hpenGrey);
- InflateRect(&r, -1, -1);
-
- DrawRect(hdc, r);
- }
- else // !pushed
- {
- if ( selected )
- {
- DrawRect(hdc, r);
-
- InflateRect(&r, -1, -1);
- }
-
- wxDrawLine(hdc, r.left, r.bottom, r.right, r.bottom);
- wxDrawLine(hdc, r.right, r.bottom, r.right, r.top - 1);
-
- (void)SelectObject(hdc, hpenWhite);
- wxDrawLine(hdc, r.left, r.bottom - 1, r.left, r.top);
- wxDrawLine(hdc, r.left, r.top, r.right, r.top);
-
- (void)SelectObject(hdc, hpenLightGr);
- wxDrawLine(hdc, r.left + 1, r.bottom - 2, r.left + 1, r.top + 1);
- wxDrawLine(hdc, r.left + 1, r.top + 1, r.right - 1, r.top + 1);
-
- (void)SelectObject(hdc, hpenGrey);
- wxDrawLine(hdc, r.left + 1, r.bottom - 1, r.right - 1, r.bottom - 1);
- wxDrawLine(hdc, r.right - 1, r.bottom - 1, r.right - 1, r.top);
- }
-
- (void)SelectObject(hdc, hpenOld);
- DeleteObject(hpenWhite);
- DeleteObject(hpenLightGr);
- DeleteObject(hpenGrey);
- DeleteObject(hpenBlack);
-}
-
-bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
-{
- LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
-
- RECT rectBtn;
- CopyRect(&rectBtn, &lpDIS->rcItem);
-
- COLORREF colBg = wxColourToRGB(GetBackgroundColour()),
- colFg = wxColourToRGB(GetForegroundColour());
-
- HDC hdc = lpDIS->hDC;
- UINT state = lpDIS->itemState;
-
- // first, draw the background
- HBRUSH hbrushBackground = ::CreateSolidBrush(colBg);
-
- FillRect(hdc, &rectBtn, hbrushBackground);
-
- // draw the border for the current state
- bool selected = (state & ODS_SELECTED) != 0;
- if ( !selected )
- {
- wxPanel *panel = wxDynamicCast(GetParent(), wxPanel);
- if ( panel )
- {
- selected = panel->GetDefaultItem() == this;
- }
- }
- bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0;
-
- DrawButtonFrame(hdc, rectBtn, selected, pushed);
-
- // draw the focus rect if needed
- if ( state & ODS_FOCUS )
- {
- RECT rectFocus;
- CopyRect(&rectFocus, &rectBtn);
-
- // I don't know where does this constant come from, but this is how
- // Windows draws them
- InflateRect(&rectFocus, -4, -4);
-
- DrawFocusRect(hdc, &rectFocus);
- }
-
- if ( pushed )
+ // show/hide UAC symbol on Windows Vista and later
+ if ( wxGetWinVersion() >= wxWinVersion_6 )
{
- // the label is shifted by 1 pixel to create "pushed" effect
- OffsetRect(&rectBtn, 1, 1);
+ m_authNeeded = show;
+ ::SendMessage(GetHwnd(), BCM_SETSHIELD, 0, show);
+ InvalidateBestSize();
}
-
- DrawButtonText(hdc, &rectBtn, GetLabel(),
- state & ODS_DISABLED ? GetSysColor(COLOR_GRAYTEXT)
- : colFg);
-
- ::DeleteObject(hbrushBackground);
-
- return TRUE;
}
-#endif // __WIN32__
-
#endif // wxUSE_BUTTON
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