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wxWidgets/src/msw/bmpbuttn.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: src/msw/bmpbuttn.cpp
// Purpose: wxBitmapButton
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_BMPBUTTON
#include "wx/bmpbuttn.h"
#ifndef WX_PRECOMP
#include "wx/log.h"
#include "wx/dcmemory.h"
#include "wx/image.h"
#endif
#include "wx/msw/private.h"
#include "wx/msw/uxtheme.h"
#if wxUSE_UXTHEME
// 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 ODS_NOFOCUSRECT
#define ODS_NOFOCUSRECT 0x0200
#endif
// ----------------------------------------------------------------------------
// macros
// ----------------------------------------------------------------------------
#if wxUSE_EXTENDED_RTTI
WX_DEFINE_FLAGS( wxBitmapButtonStyle )
wxBEGIN_FLAGS( wxBitmapButtonStyle )
// 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_AUTODRAW)
wxFLAGS_MEMBER(wxBU_LEFT)
wxFLAGS_MEMBER(wxBU_RIGHT)
wxFLAGS_MEMBER(wxBU_TOP)
wxFLAGS_MEMBER(wxBU_BOTTOM)
wxEND_FLAGS( wxBitmapButtonStyle )
IMPLEMENT_DYNAMIC_CLASS_XTI(wxBitmapButton, wxButton,"wx/bmpbuttn.h")
wxBEGIN_PROPERTIES_TABLE(wxBitmapButton)
wxPROPERTY_FLAGS( WindowStyle , wxBitmapButtonStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
wxEND_PROPERTIES_TABLE()
wxBEGIN_HANDLERS_TABLE(wxBitmapButton)
wxEND_HANDLERS_TABLE()
wxCONSTRUCTOR_5( wxBitmapButton , wxWindow* , Parent , wxWindowID , Id , wxBitmap , Bitmap , wxPoint , Position , wxSize , Size )
#else
IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton, wxButton)
#endif
BEGIN_EVENT_TABLE(wxBitmapButton, wxBitmapButtonBase)
EVT_SYS_COLOUR_CHANGED(wxBitmapButton::OnSysColourChanged)
EVT_ENTER_WINDOW(wxBitmapButton::OnMouseEnterOrLeave)
EVT_LEAVE_WINDOW(wxBitmapButton::OnMouseEnterOrLeave)
END_EVENT_TABLE()
/*
TODO PROPERTIES :
long "style" , wxBU_AUTODRAW
bool "default" , 0
bitmap "selected" ,
bitmap "focus" ,
bitmap "disabled" ,
*/
bool wxBitmapButton::Create(wxWindow *parent, wxWindowID id,
const wxBitmap& bitmap,
const wxPoint& pos,
const wxSize& size, long style,
const wxValidator& wxVALIDATOR_PARAM(validator),
const wxString& name)
{
SetBitmapLabel(bitmap);
SetName(name);
#if wxUSE_VALIDATORS
SetValidator(validator);
#endif // wxUSE_VALIDATORS
parent->AddChild(this);
m_windowStyle = style;
if ( style & wxBU_AUTODRAW )
{
m_marginX =
m_marginY = 4;
}
if (id == wxID_ANY)
m_windowId = NewControlId();
else
m_windowId = id;
long msStyle = WS_VISIBLE | WS_TABSTOP | WS_CHILD | BS_OWNERDRAW ;
if ( m_windowStyle & wxCLIP_SIBLINGS )
msStyle |= WS_CLIPSIBLINGS;
#ifdef __WIN32__
if(m_windowStyle & wxBU_LEFT)
msStyle |= BS_LEFT;
if(m_windowStyle & wxBU_RIGHT)
msStyle |= BS_RIGHT;
if(m_windowStyle & wxBU_TOP)
msStyle |= BS_TOP;
if(m_windowStyle & wxBU_BOTTOM)
msStyle |= BS_BOTTOM;
#endif
m_hWnd = (WXHWND) CreateWindowEx(
0,
wxT("BUTTON"),
wxEmptyString,
msStyle,
0, 0, 0, 0,
GetWinHwnd(parent),
(HMENU)m_windowId,
wxGetInstance(),
NULL
);
// Subclass again for purposes of dialog editing mode
SubclassWin(m_hWnd);
SetPosition(pos);
SetInitialSize(size);
return true;
}
bool wxBitmapButton::SetBackgroundColour(const wxColour& colour)
{
if ( !wxBitmapButtonBase::SetBackgroundColour(colour) )
{
// didn't change
return false;
}
// invalidate the brush, it will be recreated the next time it's needed
m_brushDisabled = wxNullBrush;
return true;
}
void wxBitmapButton::OnSysColourChanged(wxSysColourChangedEvent& event)
{
m_brushDisabled = wxNullBrush;
if ( !IsEnabled() )
{
// this change affects our current state
Refresh();
}
event.Skip();
}
void wxBitmapButton::OnMouseEnterOrLeave(wxMouseEvent& event)
{
if ( IsEnabled() && m_bmpHover.Ok() )
Refresh();
event.Skip();
}
void wxBitmapButton::SetBitmapLabel(const wxBitmap& bitmap)
{
#if wxUSE_IMAGE
if ( !HasFlag(wxBU_AUTODRAW) && !m_disabledSetByUser )
{
m_bmpDisabled = wxBitmap(bitmap.ConvertToImage().ConvertToGreyscale());
}
#endif // wxUSE_IMAGE
wxBitmapButtonBase::SetBitmapLabel(bitmap);
}
void wxBitmapButton::SetBitmapFocus(const wxBitmap& focus)
{
// if the focus bitmap is specified but hover one isn't, use the focus
// bitmap for hovering as well if this is consistent with the current
// Windows version look and feel
//
// rationale: this is compatible with the old wxGTK behaviour and also
// makes it much easier to do "the right thing" for all platforms (some of
// them, such as Windows XP, have "hot" buttons while others don't)
if ( focus.Ok() && !m_hoverSetByUser )
m_bmpHover = m_bmpFocus;
wxBitmapButtonBase::SetBitmapFocus(focus);
}
void wxBitmapButton::SetBitmapDisabled(const wxBitmap& disabled)
{
if ( disabled.IsOk() )
m_disabledSetByUser = true;
wxBitmapButtonBase::SetBitmapDisabled(disabled);
}
void wxBitmapButton::SetBitmapHover(const wxBitmap& hover)
{
if ( hover.IsOk() )
m_hoverSetByUser = true;
wxBitmapButtonBase::SetBitmapHover(hover);
}
#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
// VZ: should be at the very least less than wxDEFAULT_BUTTON_MARGIN
#define FOCUS_MARGIN 3
bool wxBitmapButton::MSWOnDraw(WXDRAWITEMSTRUCT *item)
{
#ifndef __WXWINCE__
long style = GetWindowLong((HWND) GetHWND(), GWL_STYLE);
if (style & BS_BITMAP)
{
// Let default procedure draw the bitmap, which is defined
// in the Windows resource.
return false;
}
#endif
LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;
HDC hDC = lpDIS->hDC;
UINT state = lpDIS->itemState;
bool isSelected = (state & ODS_SELECTED) != 0;
bool autoDraw = (GetWindowStyleFlag() & wxBU_AUTODRAW) != 0;
// choose the bitmap to use depending on the button state
wxBitmap *bitmap;
if ( isSelected && m_bmpSelected.Ok() )
bitmap = &m_bmpSelected;
else if ( m_bmpHover.Ok() && IsMouseInWindow() )
bitmap = &m_bmpHover;
else if ((state & ODS_FOCUS) && m_bmpFocus.Ok())
bitmap = &m_bmpFocus;
else if ((state & ODS_DISABLED) && m_bmpDisabled.Ok())
bitmap = &m_bmpDisabled;
else
bitmap = &m_bmpNormal;
if ( !bitmap->Ok() )
return false;
// centre the bitmap in the control area
int x = lpDIS->rcItem.left;
int y = lpDIS->rcItem.top;
int width = lpDIS->rcItem.right - x;
int height = lpDIS->rcItem.bottom - y;
int wBmp = bitmap->GetWidth();
int hBmp = bitmap->GetHeight();
#if wxUSE_UXTHEME
if ( autoDraw && wxUxThemeEngine::GetIfActive() )
{
MSWDrawXPBackground(this, item);
wxUxThemeHandle theme(this, L"BUTTON");
// calculate content area margins
// assuming here that each state is the same size
MARGINS margins;
wxUxThemeEngine::Get()->GetThemeMargins(theme, NULL,
BP_PUSHBUTTON, PBS_NORMAL,
TMT_CONTENTMARGINS, NULL,
&margins);
int marginX = margins.cxLeftWidth + 1;
int marginY = margins.cyTopHeight + 1;
int x1,y1;
if ( m_windowStyle & wxBU_LEFT )
{
x1 = x + marginX;
}
else if ( m_windowStyle & wxBU_RIGHT )
{
x1 = x + (width - wBmp) - marginX;
}
else
{
x1 = x + (width - wBmp) / 2;
}
if ( m_windowStyle & wxBU_TOP )
{
y1 = y + marginY;
}
else if ( m_windowStyle & wxBU_BOTTOM )
{
y1 = y + (height - hBmp) - marginY;
}
else
{
y1 = y + (height - hBmp) / 2;
}
// draw the bitmap
wxDCTemp dst((WXHDC)hDC);
dst.DrawBitmap(*bitmap, x1, y1, true);
return true;
}
#endif // wxUSE_UXTHEME
int x1,y1;
if(m_windowStyle & wxBU_LEFT)
x1 = x + (FOCUS_MARGIN+1);
else if(m_windowStyle & wxBU_RIGHT)
x1 = x + (width - wBmp) - (FOCUS_MARGIN+1);
else
x1 = x + (width - wBmp) / 2;
if(m_windowStyle & wxBU_TOP)
y1 = y + (FOCUS_MARGIN+1);
else if(m_windowStyle & wxBU_BOTTOM)
y1 = y + (height - hBmp) - (FOCUS_MARGIN+1);
else
y1 = y + (height - hBmp) / 2;
if ( isSelected && autoDraw )
{
x1++;
y1++;
}
// draw the face, if auto-drawing
if ( autoDraw )
{
DrawFace((WXHDC) hDC,
lpDIS->rcItem.left, lpDIS->rcItem.top,
lpDIS->rcItem.right, lpDIS->rcItem.bottom,
isSelected);
}
// draw the bitmap
wxDCTemp dst((WXHDC)hDC);
dst.DrawBitmap(*bitmap, x1, y1, true);
// draw focus / disabled state, if auto-drawing
if ( (state & ODS_DISABLED) && autoDraw )
{
DrawButtonDisable((WXHDC) hDC,
lpDIS->rcItem.left, lpDIS->rcItem.top,
lpDIS->rcItem.right, lpDIS->rcItem.bottom,
true);
}
else if ( (state & ODS_FOCUS) && autoDraw )
{
DrawButtonFocus((WXHDC) hDC,
lpDIS->rcItem.left,
lpDIS->rcItem.top,
lpDIS->rcItem.right,
lpDIS->rcItem.bottom,
isSelected);
}
return true;
}
// GRG Feb/2000, support for bmp buttons with Win95/98 standard LNF
void wxBitmapButton::DrawFace( WXHDC dc, int left, int top,
int right, int bottom, bool sel )
{
HPEN oldp;
HPEN penHiLight;
HPEN penLight;
HPEN penShadow;
HPEN penDkShadow;
HBRUSH brushFace;
// create needed pens and brush
penHiLight = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DHILIGHT));
penLight = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DLIGHT));
penShadow = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DSHADOW));
penDkShadow = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DDKSHADOW));
brushFace = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
// draw the rectangle
RECT rect;
rect.left = left;
rect.right = right;
rect.top = top;
rect.bottom = bottom;
FillRect((HDC) dc, &rect, brushFace);
// draw the border
oldp = (HPEN) SelectObject( (HDC) dc, sel? penDkShadow : penHiLight);
wxDrawLine((HDC) dc, left, top, right-1, top);
wxDrawLine((HDC) dc, left, top+1, left, bottom-1);
SelectObject( (HDC) dc, sel? penShadow : penLight);
wxDrawLine((HDC) dc, left+1, top+1, right-2, top+1);
wxDrawLine((HDC) dc, left+1, top+2, left+1, bottom-2);
SelectObject( (HDC) dc, sel? penLight : penShadow);
wxDrawLine((HDC) dc, left+1, bottom-2, right-1, bottom-2);
wxDrawLine((HDC) dc, right-2, bottom-3, right-2, top);
SelectObject( (HDC) dc, sel? penHiLight : penDkShadow);
wxDrawLine((HDC) dc, left, bottom-1, right+2, bottom-1);
wxDrawLine((HDC) dc, right-1, bottom-2, right-1, top-1);
// delete allocated resources
SelectObject((HDC) dc,oldp);
DeleteObject(penHiLight);
DeleteObject(penLight);
DeleteObject(penShadow);
DeleteObject(penDkShadow);
DeleteObject(brushFace);
}
void wxBitmapButton::DrawButtonFocus( WXHDC dc, int left, int top, int right,
int bottom, bool WXUNUSED(sel) )
{
RECT rect;
rect.left = left;
rect.top = top;
rect.right = right;
rect.bottom = bottom;
InflateRect( &rect, - FOCUS_MARGIN, - FOCUS_MARGIN );
// GRG: the focus rectangle should not move when the button is pushed!
/*
if ( sel )
OffsetRect( &rect, 1, 1 );
*/
DrawFocusRect( (HDC) dc, &rect );
}
void
wxBitmapButton::DrawButtonDisable( WXHDC dc,
int left, int top, int right, int bottom,
bool with_marg )
{
if ( !m_brushDisabled.Ok() )
{
// draw a bitmap with two black and two background colour pixels
wxBitmap bmp(2, 2);
wxMemoryDC dc;
dc.SelectObject(bmp);
dc.SetPen(*wxBLACK_PEN);
dc.DrawPoint(0, 0);
dc.DrawPoint(1, 1);
dc.SetPen(GetBackgroundColour());
dc.DrawPoint(0, 1);
dc.DrawPoint(1, 0);
m_brushDisabled = wxBrush(bmp);
}
SelectInHDC selectBrush((HDC)dc, GetHbrushOf(m_brushDisabled));
// ROP for "dest |= pattern" operation -- as it doesn't have a standard
// name, give it our own
static const DWORD PATTERNPAINT = 0xFA0089UL;
if ( with_marg )
{
left += m_marginX;
top += m_marginY;
right -= 2 * m_marginX;
bottom -= 2 * m_marginY;
}
::PatBlt( (HDC) dc, left, top, right, bottom, PATTERNPAINT);
}
wxSize wxBitmapButton::DoGetBestSize() const
{
if ( m_bmpNormal.Ok() )
{
int width = m_bmpNormal.GetWidth(),
height = m_bmpNormal.GetHeight();
int marginH = 0,
marginV = 0;
#if wxUSE_UXTHEME
if ( wxUxThemeEngine::GetIfActive() )
{
wxUxThemeHandle theme((wxBitmapButton *)this, L"BUTTON");
MARGINS margins;
wxUxThemeEngine::Get()->GetThemeMargins(theme, NULL,
BP_PUSHBUTTON, PBS_NORMAL,
TMT_CONTENTMARGINS, NULL,
&margins);
// XP doesn't draw themed buttons correctly when the client area is
// smaller than 8x8 - enforce this minimum size for small bitmaps
if ( width < 8 )
width = 8;
if ( height < 8 )
height = 8;
// don't add margins for the borderless buttons, they don't need
// them and it just makes them appear larger than needed
if ( !HasFlag(wxBORDER_NONE) )
{
// we need 2 extra pixels for the focus rectangle, without them
// it's overwritten by the bitmap itself
marginH = margins.cxLeftWidth + margins.cxRightWidth + 2;
marginV = margins.cyTopHeight + margins.cyBottomHeight + 2;
}
}
else
#endif // wxUSE_UXTHEME
{
if ( !HasFlag(wxBORDER_NONE) )
{
marginH = 2*m_marginX;
marginV = 2*m_marginY;
}
}
wxSize best(width + marginH, height + marginV);
CacheBestSize(best);
return best;
}
// no idea what our best size should be, defer to the base class
return wxBitmapButtonBase::DoGetBestSize();
}
#endif // wxUSE_BMPBUTTON
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