/////////////////////////////////////////////////////////////////////////////
-// Name: button.cpp
+// Name: src/msw/button.cpp
// Purpose: wxButton
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Copyright: (c) Julian Smart
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "button.h"
-#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
+#if wxUSE_BUTTON
+
+#include "wx/button.h"
+
#ifndef WX_PRECOMP
- #include "wx/button.h"
+ #include "wx/app.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"
#endif
+#include "wx/stockitem.h"
#include "wx/msw/private.h"
+#include "wx/msw/private/button.h"
+
+#if wxUSE_UXTHEME
+ #include "wx/msw/uxtheme.h"
+
+ // no need to include tmschema.h
+ #ifndef BP_PUSHBUTTON
+ #define BP_PUSHBUTTON 1
+
+ #define PBS_NORMAL 1
+ #define PBS_HOT 2
+ #define PBS_PRESSED 3
+ #define PBS_DISABLED 4
+ #define PBS_DEFAULTED 5
+
+ #define TMT_CONTENTMARGINS 3602
+ #endif
+#endif // wxUSE_UXTHEME
+
+#ifndef WM_THEMECHANGED
+ #define WM_THEMECHANGED 0x031A
+#endif
+
+#ifndef ODS_NOACCEL
+ #define ODS_NOACCEL 0x0100
+#endif
+
+#ifndef ODS_NOFOCUSRECT
+ #define ODS_NOFOCUSRECT 0x0200
+#endif
+
+#ifndef DT_HIDEPREFIX
+ #define DT_HIDEPREFIX 0x00100000
+#endif
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
-#if !USE_SHARED_LIBRARY
- IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
-#endif
+#if wxUSE_EXTENDED_RTTI
+
+WX_DEFINE_FLAGS( wxButtonStyle )
+
+wxBEGIN_FLAGS( wxButtonStyle )
+ // new style border flags, we put them first to
+ // use them for streaming out
+ wxFLAGS_MEMBER(wxBORDER_SIMPLE)
+ wxFLAGS_MEMBER(wxBORDER_SUNKEN)
+ wxFLAGS_MEMBER(wxBORDER_DOUBLE)
+ wxFLAGS_MEMBER(wxBORDER_RAISED)
+ wxFLAGS_MEMBER(wxBORDER_STATIC)
+ wxFLAGS_MEMBER(wxBORDER_NONE)
+
+ // old style border flags
+ wxFLAGS_MEMBER(wxSIMPLE_BORDER)
+ wxFLAGS_MEMBER(wxSUNKEN_BORDER)
+ wxFLAGS_MEMBER(wxDOUBLE_BORDER)
+ wxFLAGS_MEMBER(wxRAISED_BORDER)
+ wxFLAGS_MEMBER(wxSTATIC_BORDER)
+ wxFLAGS_MEMBER(wxBORDER)
+
+ // standard window styles
+ wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
+ wxFLAGS_MEMBER(wxCLIP_CHILDREN)
+ wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
+ wxFLAGS_MEMBER(wxWANTS_CHARS)
+ wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
+ wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
+ wxFLAGS_MEMBER(wxVSCROLL)
+ wxFLAGS_MEMBER(wxHSCROLL)
+
+ wxFLAGS_MEMBER(wxBU_LEFT)
+ wxFLAGS_MEMBER(wxBU_RIGHT)
+ wxFLAGS_MEMBER(wxBU_TOP)
+ wxFLAGS_MEMBER(wxBU_BOTTOM)
+ wxFLAGS_MEMBER(wxBU_EXACTFIT)
+wxEND_FLAGS( wxButtonStyle )
+
+IMPLEMENT_DYNAMIC_CLASS_XTI(wxButton, wxControl,"wx/button.h")
+
+wxBEGIN_PROPERTIES_TABLE(wxButton)
+ wxEVENT_PROPERTY( Click , wxEVT_COMMAND_BUTTON_CLICKED , wxCommandEvent)
+
+ wxPROPERTY( Font , wxFont , SetFont , GetFont , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
+ wxPROPERTY( Label, wxString , SetLabel, GetLabel, wxString(), 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
+
+ wxPROPERTY_FLAGS( WindowStyle , wxButtonStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
+
+wxEND_PROPERTIES_TABLE()
+
+wxBEGIN_HANDLERS_TABLE(wxButton)
+wxEND_HANDLERS_TABLE()
+
+wxCONSTRUCTOR_6( wxButton , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle )
+
-// 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)
+#else
+IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
+#endif
// ============================================================================
// implementation
// ============================================================================
+// ----------------------------------------------------------------------------
+// helper functions from wx/msw/private/button.h
+// ----------------------------------------------------------------------------
+
+void wxMSWButton::UpdateMultilineStyle(HWND hwnd, const wxString& label)
+{
+ // update BS_MULTILINE style depending on the new label (resetting it
+ // doesn't seem to do anything very useful but it shouldn't hurt and we do
+ // have to set it whenever the label becomes multi line as otherwise it
+ // wouldn't be shown correctly as we don't use BS_MULTILINE when creating
+ // the control unless it already has new lines in its label)
+ long styleOld = ::GetWindowLong(hwnd, GWL_STYLE),
+ styleNew;
+ if ( label.find(_T('\n')) != wxString::npos )
+ styleNew = styleOld | BS_MULTILINE;
+ else
+ styleNew = styleOld & ~BS_MULTILINE;
+
+ if ( styleNew != styleOld )
+ ::SetWindowLong(hwnd, GWL_STYLE, styleNew);
+}
+
+wxSize wxMSWButton::GetFittingSize(wxWindow *win, const wxSize& sizeLabel)
+{
+ // FIXME: this is pure guesswork, need to retrieve the real button margins
+ wxSize sizeBtn = sizeLabel;
+
+ sizeBtn.x += 3*win->GetCharWidth();
+ sizeBtn.y = 11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(sizeLabel.y)/10;
+
+ return sizeBtn;
+}
+
+wxSize wxMSWButton::ComputeBestSize(wxControl *btn)
+{
+ wxClientDC dc(btn);
+
+ wxSize sizeBtn;
+ dc.GetMultiLineTextExtent(btn->GetLabelText(), &sizeBtn.x, &sizeBtn.y);
+
+ sizeBtn = GetFittingSize(btn, sizeBtn);
+
+ // 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 ( !btn->HasFlag(wxBU_EXACTFIT) )
+ {
+ wxSize sizeDef = wxButton::GetDefaultSize();
+ if ( sizeBtn.x < sizeDef.x )
+ sizeBtn.x = sizeDef.x;
+ if ( sizeBtn.y < sizeDef.y )
+ sizeBtn.y = sizeDef.y;
+ }
+
+ btn->CacheBestSize(sizeBtn);
+
+ return sizeBtn;
+}
+
// ----------------------------------------------------------------------------
// creation/destruction
// ----------------------------------------------------------------------------
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)
{
- if ( !CreateBase(parent, id, pos, size, style, validator, name) )
- return FALSE;
-
- SetValidator(validator);
-
- parent->AddChild((wxButton *)this);
-
- m_backgroundColour = parent->GetBackgroundColour() ;
- m_foregroundColour = parent->GetForegroundColour() ;
-
- m_hWnd = (WXHWND)CreateWindowEx
- (
- MakeExtendedStyle(m_windowStyle),
- _T("BUTTON"),
- label,
- WS_VISIBLE | WS_TABSTOP | WS_CHILD,
- 0, 0, 0, 0,
- GetWinHwnd(parent),
- (HMENU)m_windowId,
- wxGetInstance(),
- NULL
- );
+ 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
+ );
+ }
- // Subclass again for purposes of dialog editing mode
- SubclassWin(m_hWnd);
+ if ( !CreateControl(parent, id, pos, size, style, validator, name) )
+ return false;
- SetFont(parent->GetFont());
+ WXDWORD exstyle;
+ WXDWORD msStyle = MSWGetStyle(style, &exstyle);
- SetSize(pos.x, pos.y, size.x, size.y);
+ // 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 the label is not set yet when MSWGetStyle() is called
+ msStyle |= wxMSWButton::GetMultilineStyle(label);
- return TRUE;
+ return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle);
}
wxButton::~wxButton()
{
- wxPanel *panel = wxDynamicCast(GetParent(), wxPanel);
- if ( panel )
+ wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
+ if ( tlw && tlw->GetTmpDefaultItem() == this )
{
- if ( panel->GetDefaultItem() == this )
- {
- // don't leave the panel with invalid default item
- panel->SetDefaultItem(NULL);
- }
+ UnsetTmpDefault();
}
}
// ----------------------------------------------------------------------------
-// size management including autosizing
+// flags
// ----------------------------------------------------------------------------
-wxSize wxButton::DoGetBestSize()
+WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const
{
- wxString label = wxGetWindowText(GetHWND());
- int wBtn;
- GetTextExtent(label, &wBtn, NULL);
+ // 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;
+
+ // 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;
+#ifndef __WXWINCE__
+ // flat 2d buttons
+ if ( style & wxNO_BORDER )
+ msStyle |= BS_FLAT;
+#endif // __WXWINCE__
+
+ return msStyle;
+}
- int wChar, hChar;
- wxGetCharSize(GetHWND(), &wChar, &hChar, &GetFont());
+void wxButton::SetLabel(const wxString& label)
+{
+ wxMSWButton::UpdateMultilineStyle(GetHwnd(), label);
- // add a margin - the button is wider than just its label
- wBtn += 3*wChar;
+ wxButtonBase::SetLabel(label);
+}
- // the button height is proportional to the height of the font used
- int hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar);
+// ----------------------------------------------------------------------------
+// size management including autosizing
+// ----------------------------------------------------------------------------
- return wxSize(wBtn, hBtn);
+wxSize wxButton::DoGetBestSize() const
+{
+ return wxMSWButton::ComputeBestSize(const_cast<wxButton *>(this));
}
/* static */
-wxSize wxButton::GetDefaultSize()
+wxSize wxButtonBase::GetDefaultSize()
{
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
}
// ----------------------------------------------------------------------------
-// set this button as the default one in its panel
+// default button handling
// ----------------------------------------------------------------------------
-void wxButton::SetDefault()
+/*
+ "Everything you ever wanted to know about the default buttons" or "Why do we
+ have to do all this?"
+
+ In MSW the default button should be activated when the user presses Enter
+ and the current control doesn't process Enter itself somehow. This is
+ handled by ::DefWindowProc() (or maybe ::DefDialogProc()) using DM_SETDEFID
+ Another aspect of "defaultness" is that the default button has different
+ appearance: this is due to BS_DEFPUSHBUTTON style which is completely
+ separate from DM_SETDEFID stuff (!). Also note that BS_DEFPUSHBUTTON should
+ be unset if our parent window is not active so it should be unset whenever
+ we lose activation and set back when we regain it.
+
+ Final complication is that when a button is active, it should be the default
+ one, i.e. pressing Enter on a button always activates it and not another
+ one.
+
+ We handle this by maintaining a permanent and a temporary default items in
+ wxControlContainer (both may be NULL). When a button becomes the current
+ control (i.e. gets focus) it sets itself as the temporary default which
+ ensures that it has the right appearance and that Enter will be redirected
+ to it. When the button loses focus, it unsets the temporary default and so
+ the default item will be the permanent default -- that is the default button
+ if any had been set or none otherwise, which is just what we want.
+
+ 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 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
+wxWindow *wxButton::SetDefault()
{
- wxWindow *parent = GetParent();
- wxButton *btnOldDefault = NULL;
- wxPanel *panel = wxDynamicCast(parent, wxPanel);
- if ( panel )
+ // set this one as the default button both for wxWidgets ...
+ wxWindow *winOldDefault = wxButtonBase::SetDefault();
+
+ // ... and Windows
+ SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), false);
+ SetDefaultStyle(this, true);
+
+ return winOldDefault;
+}
+
+// return the top level parent window if it's not being deleted yet, otherwise
+// return NULL
+static wxTopLevelWindow *GetTLWParentIfNotBeingDeleted(wxWindow *win)
+{
+ for ( ;; )
{
- btnOldDefault = panel->GetDefaultItem();
- panel->SetDefaultItem(this);
+ // 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;
}
- if ( parent )
+ wxASSERT_MSG( win, _T("button without top level parent?") );
+
+ wxTopLevelWindow * const tlw = wxDynamicCast(win, wxTopLevelWindow);
+ wxASSERT_MSG( tlw, _T("logic error in GetTLWParentIfNotBeingDeleted()") );
+
+ return tlw;
+}
+
+// set this button as being currently default
+void wxButton::SetTmpDefault()
+{
+ wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent());
+ if ( !tlw )
+ return;
+
+ wxWindow *winOldDefault = tlw->GetDefaultItem();
+ tlw->SetTmpDefaultItem(this);
+
+ SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), false);
+ SetDefaultStyle(this, true);
+}
+
+// unset this button as currently default, it may still stay permanent default
+void wxButton::UnsetTmpDefault()
+{
+ wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent());
+ if ( !tlw )
+ return;
+
+ tlw->SetTmpDefaultItem(NULL);
+
+ wxWindow *winOldDefault = tlw->GetDefaultItem();
+
+ SetDefaultStyle(this, false);
+ SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), true);
+}
+
+/* static */
+void
+wxButton::SetDefaultStyle(wxButton *btn, bool on)
+{
+ // we may be called with NULL pointer -- simpler to do the check here than
+ // in the caller which does wxDynamicCast()
+ if ( !btn )
+ return;
+
+ // first, let DefDlgProc() know about the new default button
+ if ( on )
{
- SendMessage(GetWinHwnd(parent), DM_SETDEFID, m_windowId, 0L);
+ // we shouldn't set BS_DEFPUSHBUTTON for any button if we don't have
+ // focus at all any more
+ if ( !wxTheApp->IsActive() )
+ return;
+
+ wxWindow * const tlw = wxGetTopLevelParent(btn);
+ wxCHECK_RET( tlw, _T("button without top level window?") );
+
+ ::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
}
- // this doesn't work with bitmap buttons because it also removes the
- // "ownerdrawn" style...
- if ( btnOldDefault && !wxDynamicCast(btnOldDefault, wxBitmapButton) )
+ // then also change the style as needed
+ long style = ::GetWindowLong(GetHwndOf(btn), GWL_STYLE);
+ if ( !(style & BS_DEFPUSHBUTTON) == on )
{
- // remove the BS_DEFPUSHBUTTON style from the other button
- long style = GetWindowLong(GetHwndOf(btnOldDefault), GWL_STYLE);
- style &= ~BS_DEFPUSHBUTTON;
- SendMessage(GetHwndOf(btnOldDefault), BM_SETSTYLE, style, 1L);
+ // don't do it with the owner drawn buttons because it will
+ // reset BS_OWNERDRAW style bit too (as BS_OWNERDRAW &
+ // BS_DEFPUSHBUTTON != 0)!
+ if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW )
+ {
+ ::SendMessage(GetHwndOf(btn), BM_SETSTYLE,
+ on ? style | BS_DEFPUSHBUTTON
+ : style & ~BS_DEFPUSHBUTTON,
+ 1L /* redraw */);
+ }
+ else // owner drawn
+ {
+ // redraw the button - it will notice itself that it's
+ // [not] the default one [any longer]
+ btn->Refresh();
+ }
}
-
- // set this button as the default
- long style = GetWindowLong(GetHwnd(), GWL_STYLE);
- style |= BS_DEFPUSHBUTTON;
- SendMessage(GetHwnd(), BM_SETSTYLE, style, 1L);
+ //else: already has correct style
}
// ----------------------------------------------------------------------------
// event/message handlers
// ----------------------------------------------------------------------------
-bool wxButton::MSWCommand(WXUINT param, WXWORD id)
+bool wxButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
{
- bool processed = FALSE;
+ bool processed = false;
switch ( param )
{
- case 1: // 1 for accelerator
- case BN_CLICKED:
+ // 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 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
+ // in order to not get 3 EVT_BUTTON events. If this is a problem
+ // then we need to figure out which version of the comctl32 changed
+ // this behaviour and test for it.
+
+ case 1: // message came from an accelerator
+ case BN_CLICKED: // normal buttons send this
processed = SendClickEvent();
break;
}
return processed;
}
-WXHBRUSH wxButton::OnCtlColor(WXHDC pDC,
- WXHWND pWnd,
- WXUINT nCtlColor,
- WXUINT message,
- WXWPARAM wParam,
- WXLPARAM lParam)
+WXLRESULT wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
{
- wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
+ // 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 )
+ {
+ SetTmpDefault();
+
+ // let the default processing take place too
+ }
+ else if ( nMsg == WM_KILLFOCUS )
+ {
+ 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);
- return (WXHBRUSH) backgroundBrush->GetResourceHandle();
+ // and continue with processing the message normally as well
+ }
+#if wxUSE_UXTHEME
+ else if ( nMsg == WM_THEMECHANGED )
+ {
+ // need to recalculate the best size here
+ // as the theme size might have changed
+ InvalidateBestSize();
+ }
+ else if ( wxUxThemeEngine::GetIfActive() )
+ {
+ // we need to Refresh() if mouse has entered or left window
+ // so we can update the hot tracking state
+ // must use m_mouseInWindow here instead of IsMouseInWindow()
+ // since we need to know the first time the mouse enters the window
+ // and IsMouseInWindow() would return true in this case
+ if ( ( nMsg == WM_MOUSEMOVE && !m_mouseInWindow ) ||
+ nMsg == WM_MOUSELEAVE )
+ {
+ Refresh();
+ }
+ }
+#endif // wxUSE_UXTHEME
+
+ // let the base class do all real processing
+ return wxControl::MSWWindowProc(nMsg, wParam, lParam);
+}
+
+// ----------------------------------------------------------------------------
+// owner-drawn buttons support
+// ----------------------------------------------------------------------------
+
+// drawing helpers
+
+static void DrawButtonText(HDC hdc,
+ RECT *pRect,
+ const wxString& text,
+ COLORREF col,
+ int flags)
+{
+ COLORREF colOld = SetTextColor(hdc, col);
+ int modeOld = SetBkMode(hdc, TRANSPARENT);
+
+ // center text horizontally in any case
+ flags |= DT_CENTER;
+
+ if ( text.find(_T('\n')) != wxString::npos )
+ {
+ // draw multiline label
+
+ // first we need to compute its bounding rect
+ RECT rc;
+ ::CopyRect(&rc, pRect);
+ ::DrawText(hdc, text.wx_str(), text.length(), &rc,
+ DT_CENTER | DT_CALCRECT);
+
+ // now center this rect inside the entire button area
+ const LONG w = rc.right - rc.left;
+ const LONG h = rc.bottom - rc.top;
+ rc.left = (pRect->right - pRect->left)/2 - w/2;
+ rc.right = rc.left+w;
+ rc.top = (pRect->bottom - pRect->top)/2 - h/2;
+ rc.bottom = rc.top+h;
+
+ ::DrawText(hdc, text.wx_str(), text.length(), &rc, flags);
+ }
+ else // single line label
+ {
+ // centre text vertically too (notice that we must have DT_SINGLELINE
+ // for DT_VCENTER to work)
+ ::DrawText(hdc, text.wx_str(), text.length(), pRect,
+ flags | DT_SINGLELINE | DT_VCENTER);
+ }
+
+ SetBkMode(hdc, modeOld);
+ SetTextColor(hdc, colOld);
+}
+
+static void DrawRect(HDC hdc, const RECT& r)
+{
+ 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);
}
+#if wxUSE_UXTHEME
+static
+void MSWDrawXPBackground(wxButton *button, WXDRAWITEMSTRUCT *wxdis)
+{
+ LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
+ HDC hdc = lpDIS->hDC;
+ UINT state = lpDIS->itemState;
+ RECT rectBtn;
+ CopyRect(&rectBtn, &lpDIS->rcItem);
+
+ wxUxThemeHandle theme(button, L"BUTTON");
+ int iState;
+
+ if ( state & ODS_SELECTED )
+ {
+ iState = PBS_PRESSED;
+ }
+ else if ( button->HasCapture() || button->IsMouseInWindow() )
+ {
+ iState = PBS_HOT;
+ }
+ else if ( state & ODS_FOCUS )
+ {
+ iState = PBS_DEFAULTED;
+ }
+ else if ( state & ODS_DISABLED )
+ {
+ iState = PBS_DISABLED;
+ }
+ else
+ {
+ iState = PBS_NORMAL;
+ }
+
+ // draw parent background if needed
+ if ( wxUxThemeEngine::Get()->IsThemeBackgroundPartiallyTransparent(theme,
+ BP_PUSHBUTTON,
+ iState) )
+ {
+ wxUxThemeEngine::Get()->DrawThemeParentBackground(GetHwndOf(button), hdc, &rectBtn);
+ }
+
+ // draw background
+ wxUxThemeEngine::Get()->DrawThemeBackground(theme, hdc, BP_PUSHBUTTON, iState,
+ &rectBtn, NULL);
+
+ // calculate content area margins
+ MARGINS margins;
+ wxUxThemeEngine::Get()->GetThemeMargins(theme, hdc, BP_PUSHBUTTON, iState,
+ TMT_CONTENTMARGINS, &rectBtn, &margins);
+ RECT rectClient;
+ ::CopyRect(&rectClient, &rectBtn);
+ ::InflateRect(&rectClient, -margins.cxLeftWidth, -margins.cyTopHeight);
+
+ // if focused and !nofocus rect
+ if ( (state & ODS_FOCUS) && !(state & ODS_NOFOCUSRECT) )
+ {
+ DrawFocusRect(hdc, &rectClient);
+ }
+
+ if ( button->UseBgCol() )
+ {
+ COLORREF colBg = wxColourToRGB(button->GetBackgroundColour());
+ HBRUSH hbrushBackground = ::CreateSolidBrush(colBg);
+
+ // don't overwrite the focus rect
+ ::InflateRect(&rectClient, -1, -1);
+ FillRect(hdc, &rectClient, hbrushBackground);
+ ::DeleteObject(hbrushBackground);
+ }
+}
+#endif // wxUSE_UXTHEME
+
+bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
+{
+ LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
+ HDC hdc = lpDIS->hDC;
+ UINT state = lpDIS->itemState;
+ RECT rectBtn;
+ CopyRect(&rectBtn, &lpDIS->rcItem);
+
+#if wxUSE_UXTHEME
+ if ( wxUxThemeEngine::GetIfActive() )
+ {
+ MSWDrawXPBackground(this, wxdis);
+ }
+ else
+#endif // wxUSE_UXTHEME
+ {
+ COLORREF colBg = wxColourToRGB(GetBackgroundColour());
+
+ // first, draw the background
+ HBRUSH hbrushBackground = ::CreateSolidBrush(colBg);
+ FillRect(hdc, &rectBtn, hbrushBackground);
+ ::DeleteObject(hbrushBackground);
+
+ // draw the border for the current state
+ bool selected = (state & ODS_SELECTED) != 0;
+ if ( !selected )
+ {
+ wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
+ if ( tlw )
+ {
+ selected = tlw->GetDefaultItem() == this;
+ }
+ }
+ bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0;
+
+ DrawButtonFrame(hdc, rectBtn, selected, pushed);
+
+ // if focused and !nofocus rect
+ if ( (state & ODS_FOCUS) && !(state & ODS_NOFOCUSRECT) )
+ {
+ 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 )
+ {
+ // the label is shifted by 1 pixel to create "pushed" effect
+ OffsetRect(&rectBtn, 1, 1);
+ }
+ }
+
+ COLORREF colFg = state & ODS_DISABLED
+ ? ::GetSysColor(COLOR_GRAYTEXT)
+ : wxColourToRGB(GetForegroundColour());
+
+ // notice that DT_HIDEPREFIX doesn't work on old (pre-Windows 2000) systems
+ // but by happy coincidence ODS_NOACCEL is not used under them neither so
+ // DT_HIDEPREFIX should never be used there
+ DrawButtonText(hdc, &rectBtn, GetLabel(), colFg,
+ state & ODS_NOACCEL ? DT_HIDEPREFIX : 0);
+
+ return true;
+}
+
+#endif // wxUSE_BUTTON
+
projects / wxWidgets.git / blobdiff