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eba99da4c0563e6508761272a1e1f1b791d0af6b
wxWidgets/src/msw/statbox.cpp
Julian Smart eba99da4c0 Applied patch [ 1166587 ] [wxMSW] Removes all flicker from wxStaticBox 
By Jamie Gadd


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33178 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2005-03-30 15:30:06 +00:00

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/////////////////////////////////////////////////////////////////////////////
// Name: msw/statbox.cpp
// Purpose: wxStaticBox
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "statbox.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_STATBOX
#ifndef WX_PRECOMP
#include "wx/app.h"
#include "wx/dcclient.h"
#endif
#include "wx/statbox.h"
#include "wx/notebook.h"
#include "wx/sysopt.h"
#include "wx/image.h"
#include "wx/msw/private.h"
// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------
#if wxUSE_EXTENDED_RTTI
WX_DEFINE_FLAGS( wxStaticBoxStyle )
wxBEGIN_FLAGS( wxStaticBoxStyle )
// 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)
wxEND_FLAGS( wxStaticBoxStyle )
IMPLEMENT_DYNAMIC_CLASS_XTI(wxStaticBox, wxControl,"wx/statbox.h")
wxBEGIN_PROPERTIES_TABLE(wxStaticBox)
wxPROPERTY( Label,wxString, SetLabel, GetLabel, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
wxPROPERTY_FLAGS( WindowStyle , wxStaticBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
/*
TODO PROPERTIES :
label
*/
wxEND_PROPERTIES_TABLE()
wxBEGIN_HANDLERS_TABLE(wxStaticBox)
wxEND_HANDLERS_TABLE()
wxCONSTRUCTOR_6( wxStaticBox , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle )
#else
IMPLEMENT_DYNAMIC_CLASS(wxStaticBox, wxControl)
#endif
BEGIN_EVENT_TABLE(wxStaticBox, wxControl)
EVT_PAINT(wxStaticBox::OnPaint)
END_EVENT_TABLE()
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// wxStaticBox
// ----------------------------------------------------------------------------
bool wxStaticBox::Create(wxWindow *parent,
wxWindowID id,
const wxString& label,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name)
{
if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
return false;
if ( !MSWCreateControl(wxT("BUTTON"), label, pos, size) )
return false;
return true;
}
WXDWORD wxStaticBox::MSWGetStyle(long style, WXDWORD *exstyle) const
{
long styleWin = wxStaticBoxBase::MSWGetStyle(style, exstyle);
// no need for it anymore, must be removed for wxRadioBox child
// buttons to be able to repaint themselves
styleWin &= ~WS_CLIPCHILDREN;
if ( exstyle )
*exstyle = 0;
return styleWin | BS_GROUPBOX;
}
wxSize wxStaticBox::DoGetBestSize() const
{
int cx, cy;
wxGetCharSize(GetHWND(), &cx, &cy, GetFont());
int wBox;
GetTextExtent(wxGetWindowText(m_hWnd), &wBox, &cy);
wBox += 3*cx;
int hBox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
return wxSize(wBox, hBox);
}
WXLRESULT wxStaticBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
{
#ifndef __WXWINCE__
if ( nMsg == WM_NCHITTEST )
{
// This code breaks some other processing such as enter/leave tracking
// so it's off by default.
static int s_useHTClient = -1;
if (s_useHTClient == -1)
s_useHTClient = wxSystemOptions::GetOptionInt(wxT("msw.staticbox.htclient"));
if (s_useHTClient == 1)
{
int xPos = LOWORD(lParam); // horizontal position of cursor
int yPos = HIWORD(lParam); // vertical position of cursor
ScreenToClient(&xPos, &yPos);
// Make sure you can drag by the top of the groupbox, but let
// other (enclosed) controls get mouse events also
if ( yPos < 10 )
return (long)HTCLIENT;
}
}
#endif // !__WXWINCE__
return wxControl::MSWWindowProc(nMsg, wParam, lParam);
}
void wxStaticBox::GetBordersForSizer(int *borderTop, int *borderOther) const
{
wxStaticBoxBase::GetBordersForSizer(borderTop, borderOther);
// if not using correct (but backwards cojmpatible) text metrics
// calculations, we need to add some extra margin or otherwise static box
// title is clipped
#if !wxDIALOG_UNIT_COMPATIBILITY
if ( !GetLabel().empty() )
*borderTop += GetCharHeight()/3;
#endif // !wxDIALOG_UNIT_COMPATIBILITY
}
// rc must be in client coords!
void wxStaticBox::MSWClipBoxRegion(HRGN hrgn, const RECT *rc)
{
HRGN hrgnchild;
// top
hrgnchild = ::CreateRectRgn(0, 0, rc->right, 14);
::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
::DeleteObject(hrgnchild);
// bottom
hrgnchild = ::CreateRectRgn(0, rc->bottom - 7, rc->right, rc->bottom);
::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
::DeleteObject(hrgnchild);
// left
hrgnchild = ::CreateRectRgn(0, 0, 7, rc->bottom);
::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
::DeleteObject(hrgnchild);
// right
hrgnchild = ::CreateRectRgn(rc->right - 7, 0, rc->right, rc->bottom);
::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
::DeleteObject(hrgnchild);
}
WXHRGN wxStaticBox::MSWCalculateClippingRegion()
{
RECT rc;
::GetWindowRect(GetHwnd(), &rc);
HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
wxWindowList::compatibility_iterator node = GetParent()->GetChildren().GetFirst();
while ( node )
{
wxWindow *child = node->GetData();
// can't just test for (this != child) here since if a wxStaticBox
// overlaps another wxStaticBox then neither are drawn. The overlapping
// region will flicker but we shouldn't have overlapping windows anyway.
if ( !child->IsKindOf(CLASSINFO(wxStaticBox)) )
{
::GetWindowRect(GetHwndOf(child), &rc);
if ( RectInRegion(hrgn, &rc) )
{
// need to remove WS_CLIPSIBLINGS from all sibling windows
// that are within this staticbox if set
LONG style = ::GetWindowLong(GetHwndOf(child), GWL_STYLE);
if ( style & WS_CLIPSIBLINGS )
{
style &= ~WS_CLIPSIBLINGS;
::SetWindowLong(GetHwndOf(child), GWL_STYLE, style);
// MSDN: "If you have changed certain window data using
// SetWindowLong, you must call SetWindowPos to have the
// changes take effect."
::SetWindowPos(GetHwndOf(child), NULL, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
SWP_FRAMECHANGED);
}
HRGN hrgnchild = ::CreateRectRgnIndirect(&rc);
::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
::DeleteObject(hrgnchild);
}
}
node = node->GetNext();
}
::GetWindowRect(GetHwnd(), &rc);
::OffsetRgn(hrgn, -rc.left, -rc.top);
return hrgn;
}
void wxStaticBox::OnPaint(wxPaintEvent& WXUNUSED(event))
{
wxPaintDC dc(this);
RECT rc;
::GetClientRect(GetHwnd(), &rc);
// paint the actual box
wxMemoryDC memdc;
wxBitmap bitmap(rc.right, rc.bottom);
memdc.SelectObject(bitmap);
// get bg brush
WXHBRUSH hbr = DoMSWControlColor(GetHdcOf(memdc), wxNullColour);
if ( !hbr )
{
wxBrush *brush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
hbr = (WXHBRUSH)brush->GetResourceHandle();
}
// draw solid box, but only blit the good bits
::FillRect(GetHdcOf(memdc), &rc, (HBRUSH)hbr);
MSWDefWindowProc(WM_PAINT, (WPARAM)GetHdcOf(memdc), 0);
// top
dc.Blit(7, 0, rc.right - 7, 14, &memdc, 7, 0);
// bottom
dc.Blit(7, rc.bottom - 7, rc.right - 7, rc.bottom, &memdc, 7, rc.bottom - 7);
// left
dc.Blit(0, 0, 7, rc.bottom, &memdc, 0, 0);
// right
dc.Blit(rc.right - 7, 0, rc.right, rc.bottom, &memdc, rc.right - 7, 0);
// paint the inner
HRGN hrgn = (HRGN)MSWCalculateClippingRegion();
// now remove the box itself
MSWClipBoxRegion(hrgn, &rc);
hbr = DoMSWControlColor(GetHdcOf(dc), wxNullColour);
if ( !hbr )
{
wxBrush *brush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID);
hbr = (WXHBRUSH)brush->GetResourceHandle();
}
::SelectClipRgn(GetHdcOf(dc), hrgn);
::FillRect(GetHdcOf(dc), &rc, (HBRUSH)hbr);
::SelectClipRgn(GetHdcOf(dc), NULL);
::DeleteObject(hrgn);
}
#endif // wxUSE_STATBOX
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