2008-07-12 19:40:22 +02:00
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/////////////////////////////////////////////////////////////////////////////
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// Name: src/msw/button.cpp
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// Purpose: wxButton
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// Author: Julian Smart
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// Modified by:
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// Created: 04/01/98
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2008-07-24 01:30:11 +02:00
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// RCS-ID: $Id: button.cpp 51575 2008-02-06 19:58:30Z VZ $
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2008-07-12 19:40:22 +02:00
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if wxUSE_BUTTON
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#include "wx/button.h"
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#ifndef WX_PRECOMP
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#include "wx/app.h"
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#include "wx/brush.h"
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#include "wx/panel.h"
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#include "wx/bmpbuttn.h"
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#include "wx/settings.h"
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#include "wx/dcscreen.h"
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#include "wx/dcclient.h"
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#include "wx/toplevel.h"
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#endif
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#include "wx/stockitem.h"
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#include "wx/tokenzr.h"
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#include "wx/msw/private.h"
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#if wxUSE_UXTHEME
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#include "wx/msw/uxtheme.h"
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// no need to include tmschema.h
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#ifndef BP_PUSHBUTTON
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#define BP_PUSHBUTTON 1
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#define PBS_NORMAL 1
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#define PBS_HOT 2
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#define PBS_PRESSED 3
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#define PBS_DISABLED 4
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#define PBS_DEFAULTED 5
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#define TMT_CONTENTMARGINS 3602
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#endif
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#endif // wxUSE_UXTHEME
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#ifndef WM_THEMECHANGED
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#define WM_THEMECHANGED 0x031A
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#endif
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#ifndef ODS_NOACCEL
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#define ODS_NOACCEL 0x0100
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#endif
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#ifndef ODS_NOFOCUSRECT
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#define ODS_NOFOCUSRECT 0x0200
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#endif
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// ----------------------------------------------------------------------------
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// macros
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// ----------------------------------------------------------------------------
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#if wxUSE_EXTENDED_RTTI
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WX_DEFINE_FLAGS( wxButtonStyle )
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wxBEGIN_FLAGS( wxButtonStyle )
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// new style border flags, we put them first to
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// use them for streaming out
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wxFLAGS_MEMBER(wxBORDER_SIMPLE)
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wxFLAGS_MEMBER(wxBORDER_SUNKEN)
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wxFLAGS_MEMBER(wxBORDER_DOUBLE)
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wxFLAGS_MEMBER(wxBORDER_RAISED)
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wxFLAGS_MEMBER(wxBORDER_STATIC)
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wxFLAGS_MEMBER(wxBORDER_NONE)
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// old style border flags
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wxFLAGS_MEMBER(wxSIMPLE_BORDER)
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wxFLAGS_MEMBER(wxSUNKEN_BORDER)
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wxFLAGS_MEMBER(wxDOUBLE_BORDER)
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wxFLAGS_MEMBER(wxRAISED_BORDER)
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wxFLAGS_MEMBER(wxSTATIC_BORDER)
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wxFLAGS_MEMBER(wxBORDER)
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// standard window styles
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wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
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wxFLAGS_MEMBER(wxCLIP_CHILDREN)
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wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
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wxFLAGS_MEMBER(wxWANTS_CHARS)
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wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
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wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
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wxFLAGS_MEMBER(wxVSCROLL)
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wxFLAGS_MEMBER(wxHSCROLL)
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wxFLAGS_MEMBER(wxBU_LEFT)
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wxFLAGS_MEMBER(wxBU_RIGHT)
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wxFLAGS_MEMBER(wxBU_TOP)
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wxFLAGS_MEMBER(wxBU_BOTTOM)
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wxFLAGS_MEMBER(wxBU_EXACTFIT)
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wxEND_FLAGS( wxButtonStyle )
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IMPLEMENT_DYNAMIC_CLASS_XTI(wxButton, wxControl,"wx/button.h")
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wxBEGIN_PROPERTIES_TABLE(wxButton)
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wxEVENT_PROPERTY( Click , wxEVT_COMMAND_BUTTON_CLICKED , wxCommandEvent)
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wxPROPERTY( Font , wxFont , SetFont , GetFont , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
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wxPROPERTY( Label, wxString , SetLabel, GetLabel, wxString(), 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
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wxPROPERTY_FLAGS( WindowStyle , wxButtonStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
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wxEND_PROPERTIES_TABLE()
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wxBEGIN_HANDLERS_TABLE(wxButton)
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wxEND_HANDLERS_TABLE()
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wxCONSTRUCTOR_6( wxButton , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle )
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#else
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IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
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#endif
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// this macro tries to adjust the default button height to a reasonable value
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// using the char height as the base
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#define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10)
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// creation/destruction
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// ----------------------------------------------------------------------------
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bool wxButton::Create(wxWindow *parent,
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wxWindowID id,
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const wxString& lbl,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxValidator& validator,
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const wxString& name)
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{
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wxString label(lbl);
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if (label.empty() && wxIsStockID(id))
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{
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// On Windows, some buttons aren't supposed to have
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// mnemonics, so strip them out.
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label = wxGetStockLabel(id
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#if defined(__WXMSW__) || defined(__WXWINCE__)
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, ( id != wxID_OK &&
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id != wxID_CANCEL &&
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id != wxID_CLOSE )
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#endif
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);
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}
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if ( !CreateControl(parent, id, pos, size, style, validator, name) )
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return false;
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WXDWORD exstyle;
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WXDWORD msStyle = MSWGetStyle(style, &exstyle);
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#ifdef __WIN32__
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// if the label contains several lines we must explicitly tell the button
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// about it or it wouldn't draw it correctly ("\n"s would just appear as
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// black boxes)
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//
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// NB: we do it here and not in MSWGetStyle() because we need the label
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// value and m_label is not set yet when MSWGetStyle() is called;
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// besides changing BS_MULTILINE during run-time is pointless anyhow
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if ( label.find(_T('\n')) != wxString::npos )
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{
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msStyle |= BS_MULTILINE;
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}
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#endif // __WIN32__
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return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle);
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}
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wxButton::~wxButton()
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{
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wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
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if ( tlw && tlw->GetTmpDefaultItem() == this )
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{
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UnsetTmpDefault();
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}
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}
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// ----------------------------------------------------------------------------
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// flags
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// ----------------------------------------------------------------------------
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WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const
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{
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// buttons never have an external border, they draw their own one
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WXDWORD msStyle = wxControl::MSWGetStyle
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(
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(style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle
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);
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// we must use WS_CLIPSIBLINGS with the buttons or they would draw over
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// each other in any resizeable dialog which has more than one button in
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// the bottom
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msStyle |= WS_CLIPSIBLINGS;
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#ifdef __WIN32__
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// don't use "else if" here: weird as it is, but you may combine wxBU_LEFT
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// and wxBU_RIGHT to get BS_CENTER!
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if ( style & wxBU_LEFT )
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msStyle |= BS_LEFT;
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if ( style & wxBU_RIGHT )
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msStyle |= BS_RIGHT;
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if ( style & wxBU_TOP )
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msStyle |= BS_TOP;
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if ( style & wxBU_BOTTOM )
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msStyle |= BS_BOTTOM;
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#ifndef __WXWINCE__
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// flat 2d buttons
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if ( style & wxNO_BORDER )
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msStyle |= BS_FLAT;
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#endif // __WXWINCE__
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#endif // __WIN32__
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return msStyle;
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}
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// ----------------------------------------------------------------------------
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// size management including autosizing
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// ----------------------------------------------------------------------------
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wxSize wxButton::DoGetBestSize() const
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{
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wxClientDC dc(wx_const_cast(wxButton *, this));
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dc.SetFont(GetFont());
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wxCoord wBtn,
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hBtn;
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dc.GetMultiLineTextExtent(GetLabelText(), &wBtn, &hBtn);
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// add a margin -- the button is wider than just its label
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wBtn += 3*GetCharWidth();
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hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hBtn);
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// all buttons have at least the standard size unless the user explicitly
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// wants them to be of smaller size and used wxBU_EXACTFIT style when
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// creating the button
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if ( !HasFlag(wxBU_EXACTFIT) )
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{
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wxSize sz = GetDefaultSize();
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if (wBtn > sz.x)
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sz.x = wBtn;
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if (hBtn > sz.y)
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sz.y = hBtn;
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return sz;
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}
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wxSize best(wBtn, hBtn);
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CacheBestSize(best);
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return best;
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}
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/* static */
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wxSize wxButtonBase::GetDefaultSize()
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{
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static wxSize s_sizeBtn;
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if ( s_sizeBtn.x == 0 )
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{
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wxScreenDC dc;
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dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
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// the size of a standard button in the dialog units is 50x14,
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// translate this to pixels
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// NB1: the multipliers come from the Windows convention
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// NB2: the extra +1/+2 were needed to get the size be the same as the
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// size of the buttons in the standard dialog - I don't know how
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// this happens, but on my system this size is 75x23 in pixels and
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// 23*8 isn't even divisible by 14... Would be nice to understand
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// why these constants are needed though!
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s_sizeBtn.x = (50 * (dc.GetCharWidth() + 1))/4;
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s_sizeBtn.y = ((14 * dc.GetCharHeight()) + 2)/8;
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}
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return s_sizeBtn;
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}
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// ----------------------------------------------------------------------------
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// default button handling
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// ----------------------------------------------------------------------------
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/*
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"Everything you ever wanted to know about the default buttons" or "Why do we
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have to do all this?"
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In MSW the default button should be activated when the user presses Enter
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and the current control doesn't process Enter itself somehow. This is
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handled by ::DefWindowProc() (or maybe ::DefDialogProc()) using DM_SETDEFID
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Another aspect of "defaultness" is that the default button has different
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appearance: this is due to BS_DEFPUSHBUTTON style which is completely
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separate from DM_SETDEFID stuff (!). Also note that BS_DEFPUSHBUTTON should
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be unset if our parent window is not active so it should be unset whenever
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we lose activation and set back when we regain it.
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Final complication is that when a button is active, it should be the default
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one, i.e. pressing Enter on a button always activates it and not another
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one.
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We handle this by maintaining a permanent and a temporary default items in
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wxControlContainer (both may be NULL). When a button becomes the current
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control (i.e. gets focus) it sets itself as the temporary default which
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ensures that it has the right appearance and that Enter will be redirected
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to it. When the button loses focus, it unsets the temporary default and so
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the default item will be the permanent default -- that is the default button
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if any had been set or none otherwise, which is just what we want.
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NB: all this is quite complicated by now and the worst is that normally
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it shouldn't be necessary at all as for the normal Windows programs
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DefWindowProc() and IsDialogMessage() take care of all this
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automatically -- however in wxWidgets programs this doesn't work for
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nested hierarchies (i.e. a notebook inside a notebook) for unknown
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reason and so we have to reproduce all this code ourselves. It would be
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very nice if we could avoid doing it.
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*/
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// set this button as the (permanently) default one in its panel
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void wxButton::SetDefault()
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{
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wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
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wxCHECK_RET( tlw, _T("button without top level window?") );
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// set this one as the default button both for wxWidgets ...
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wxWindow *winOldDefault = tlw->SetDefaultItem(this);
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// ... and Windows
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SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), false);
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SetDefaultStyle(this, true);
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}
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2008-07-24 01:30:11 +02:00
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// return the top level parent window if it's not being deleted yet, otherwise
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// return NULL
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2008-07-12 19:40:22 +02:00
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static wxTopLevelWindow *GetTLWParentIfNotBeingDeleted(wxWindow *win)
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{
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2008-07-24 01:30:11 +02:00
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for ( ;; )
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2008-07-12 19:40:22 +02:00
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{
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2008-07-24 01:30:11 +02:00
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// IsTopLevel() will return false for a wxTLW being deleted, so we also
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// need the parent test for this case
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wxWindow * const parent = win->GetParent();
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if ( !parent || win->IsTopLevel() )
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|
|
|
{
|
|
|
|
if ( win->IsBeingDeleted() )
|
|
|
|
return NULL;
|
2008-07-12 19:40:22 +02:00
|
|
|
|
|
|
|
break;
|
2008-07-24 01:30:11 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
win = parent;
|
2008-07-12 19:40:22 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
wxASSERT_MSG( win, _T("button without top level parent?") );
|
|
|
|
|
2008-07-24 01:30:11 +02:00
|
|
|
wxTopLevelWindow * const tlw = wxDynamicCast(win, wxTopLevelWindow);
|
|
|
|
wxASSERT_MSG( tlw, _T("logic error in GetTLWParentIfNotBeingDeleted()") );
|
|
|
|
|
|
|
|
return tlw;
|
2008-07-12 19:40:22 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
// 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 )
|
|
|
|
{
|
|
|
|
// 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
|
|
|
|
}
|
|
|
|
|
|
|
|
// then also change the style as needed
|
|
|
|
long style = ::GetWindowLong(GetHwndOf(btn), GWL_STYLE);
|
|
|
|
if ( !(style & BS_DEFPUSHBUTTON) == on )
|
|
|
|
{
|
|
|
|
// 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();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
//else: already has correct style
|
|
|
|
}
|
|
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// helpers
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
bool wxButton::SendClickEvent()
|
|
|
|
{
|
|
|
|
wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, GetId());
|
|
|
|
event.SetEventObject(this);
|
|
|
|
|
|
|
|
return ProcessCommand(event);
|
|
|
|
}
|
|
|
|
|
|
|
|
void wxButton::Command(wxCommandEvent & event)
|
|
|
|
{
|
|
|
|
ProcessCommand(event);
|
|
|
|
}
|
|
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// event/message handlers
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
bool wxButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
|
|
|
|
{
|
|
|
|
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 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;
|
|
|
|
}
|
|
|
|
|
|
|
|
WXLRESULT wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
|
|
|
|
{
|
|
|
|
// 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);
|
|
|
|
|
|
|
|
// 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
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
#ifdef __WIN32__
|
|
|
|
|
|
|
|
// drawing helpers
|
|
|
|
|
|
|
|
static void DrawButtonText(HDC hdc,
|
|
|
|
RECT *pRect,
|
|
|
|
const wxString& text,
|
|
|
|
COLORREF col)
|
|
|
|
{
|
|
|
|
COLORREF colOld = SetTextColor(hdc, col);
|
|
|
|
int modeOld = SetBkMode(hdc, TRANSPARENT);
|
|
|
|
|
|
|
|
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, 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, text.length(), &rc, DT_CENTER);
|
|
|
|
}
|
|
|
|
else // single line label
|
|
|
|
{
|
|
|
|
// 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);
|
|
|
|
}
|
|
|
|
|
|
|
|
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)
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{
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LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
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HDC hdc = lpDIS->hDC;
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UINT state = lpDIS->itemState;
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RECT rectBtn;
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CopyRect(&rectBtn, &lpDIS->rcItem);
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wxUxThemeHandle theme(button, L"BUTTON");
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int iState;
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if ( state & ODS_SELECTED )
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{
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iState = PBS_PRESSED;
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}
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else if ( button->HasCapture() || button->IsMouseInWindow() )
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{
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iState = PBS_HOT;
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}
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else if ( state & ODS_FOCUS )
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{
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iState = PBS_DEFAULTED;
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}
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else if ( state & ODS_DISABLED )
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{
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iState = PBS_DISABLED;
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}
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else
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{
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iState = PBS_NORMAL;
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}
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// draw parent background if needed
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if ( wxUxThemeEngine::Get()->IsThemeBackgroundPartiallyTransparent(theme,
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BP_PUSHBUTTON,
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iState) )
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{
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wxUxThemeEngine::Get()->DrawThemeParentBackground(GetHwndOf(button), hdc, &rectBtn);
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}
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// draw background
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wxUxThemeEngine::Get()->DrawThemeBackground(theme, hdc, BP_PUSHBUTTON, iState,
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&rectBtn, NULL);
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// calculate content area margins
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MARGINS margins;
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wxUxThemeEngine::Get()->GetThemeMargins(theme, hdc, BP_PUSHBUTTON, iState,
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TMT_CONTENTMARGINS, &rectBtn, &margins);
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RECT rectClient;
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::CopyRect(&rectClient, &rectBtn);
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::InflateRect(&rectClient, -margins.cxLeftWidth, -margins.cyTopHeight);
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// if focused and !nofocus rect
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if ( (state & ODS_FOCUS) && !(state & ODS_NOFOCUSRECT) )
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{
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DrawFocusRect(hdc, &rectClient);
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}
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if ( button->UseBgCol() )
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{
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COLORREF colBg = wxColourToRGB(button->GetBackgroundColour());
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HBRUSH hbrushBackground = ::CreateSolidBrush(colBg);
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// don't overwrite the focus rect
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::InflateRect(&rectClient, -1, -1);
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FillRect(hdc, &rectClient, hbrushBackground);
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::DeleteObject(hbrushBackground);
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}
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}
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#endif // wxUSE_UXTHEME
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bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
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{
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LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
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HDC hdc = lpDIS->hDC;
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UINT state = lpDIS->itemState;
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RECT rectBtn;
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CopyRect(&rectBtn, &lpDIS->rcItem);
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#if wxUSE_UXTHEME
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if ( wxUxThemeEngine::GetIfActive() )
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{
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MSWDrawXPBackground(this, wxdis);
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}
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else
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#endif // wxUSE_UXTHEME
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{
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COLORREF colBg = wxColourToRGB(GetBackgroundColour());
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// first, draw the background
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HBRUSH hbrushBackground = ::CreateSolidBrush(colBg);
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FillRect(hdc, &rectBtn, hbrushBackground);
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::DeleteObject(hbrushBackground);
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// draw the border for the current state
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bool selected = (state & ODS_SELECTED) != 0;
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if ( !selected )
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{
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wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow);
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if ( tlw )
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{
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selected = tlw->GetDefaultItem() == this;
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}
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}
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bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0;
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DrawButtonFrame(hdc, rectBtn, selected, pushed);
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// if focused and !nofocus rect
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if ( (state & ODS_FOCUS) && !(state & ODS_NOFOCUSRECT) )
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{
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RECT rectFocus;
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CopyRect(&rectFocus, &rectBtn);
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// I don't know where does this constant come from, but this is how
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// Windows draws them
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InflateRect(&rectFocus, -4, -4);
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DrawFocusRect(hdc, &rectFocus);
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}
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if ( pushed )
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{
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// the label is shifted by 1 pixel to create "pushed" effect
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OffsetRect(&rectBtn, 1, 1);
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}
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}
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COLORREF colFg = wxColourToRGB(GetForegroundColour());
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if ( state & ODS_DISABLED ) colFg = GetSysColor(COLOR_GRAYTEXT) ;
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wxString label = GetLabel();
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if ( state & ODS_NOACCEL ) label = GetLabelText() ;
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DrawButtonText(hdc, &rectBtn, label, colFg);
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return true;
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}
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#endif // __WIN32__
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#endif // wxUSE_BUTTON
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