mirror of
https://gitlab.xiph.org/xiph/icecast-server.git
synced 2024-11-03 04:17:17 -05:00
443 lines
9.8 KiB
C++
443 lines
9.8 KiB
C++
// ResizableDialog.cpp : implementation file
|
|
//
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Copyright (C) 2000 by Paolo Messina
|
|
// (ppescher@yahoo.com)
|
|
//
|
|
// Free for non-commercial use.
|
|
// You may change the code to your needs,
|
|
// provided that credits to the original
|
|
// author is given in the modified files.
|
|
//
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "stdafx.h"
|
|
#include "ResizableDialog.h"
|
|
|
|
#ifdef _DEBUG
|
|
#define new DEBUG_NEW
|
|
#undef THIS_FILE
|
|
static char THIS_FILE[] = __FILE__;
|
|
#endif
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CResizableDialog
|
|
|
|
inline void CResizableDialog::Construct()
|
|
{
|
|
m_bInitDone = FALSE;
|
|
|
|
m_bUseMinTrack = TRUE;
|
|
m_bUseMaxTrack = FALSE;
|
|
m_bUseMaxRect = FALSE;
|
|
|
|
m_bShowGrip = TRUE;
|
|
|
|
m_bEnableSaveRestore = FALSE;
|
|
|
|
m_szGripSize.cx = GetSystemMetrics(SM_CXVSCROLL);
|
|
m_szGripSize.cy = GetSystemMetrics(SM_CYHSCROLL);
|
|
}
|
|
|
|
CResizableDialog::CResizableDialog()
|
|
{
|
|
Construct();
|
|
}
|
|
|
|
CResizableDialog::CResizableDialog(UINT nIDTemplate, CWnd* pParentWnd)
|
|
: CDialog(nIDTemplate, pParentWnd)
|
|
{
|
|
Construct();
|
|
}
|
|
|
|
CResizableDialog::CResizableDialog(LPCTSTR lpszTemplateName, CWnd* pParentWnd)
|
|
: CDialog(lpszTemplateName, pParentWnd)
|
|
{
|
|
Construct();
|
|
}
|
|
|
|
CResizableDialog::~CResizableDialog()
|
|
{
|
|
// for safety
|
|
m_arrLayout.RemoveAll();
|
|
}
|
|
|
|
|
|
BEGIN_MESSAGE_MAP(CResizableDialog, CDialog)
|
|
//{{AFX_MSG_MAP(CResizableDialog)
|
|
ON_WM_NCHITTEST()
|
|
ON_WM_GETMINMAXINFO()
|
|
ON_WM_SIZE()
|
|
ON_WM_DESTROY()
|
|
ON_WM_PAINT()
|
|
//}}AFX_MSG_MAP
|
|
END_MESSAGE_MAP()
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
// CResizableDialog message handlers
|
|
|
|
|
|
BOOL CResizableDialog::OnInitDialog()
|
|
{
|
|
CDialog::OnInitDialog();
|
|
|
|
UpdateGripPos();
|
|
|
|
// gets the template size as the min track size
|
|
CRect rc;
|
|
GetWindowRect(&rc);
|
|
m_ptMinTrackSize.x = rc.Width();
|
|
m_ptMinTrackSize.y = rc.Height();
|
|
|
|
m_bInitDone = TRUE;
|
|
|
|
return TRUE; // return TRUE unless you set the focus to a control
|
|
// EXCEPTION: OCX Property Pages should return FALSE
|
|
}
|
|
|
|
void CResizableDialog::OnDestroy()
|
|
{
|
|
CDialog::OnDestroy();
|
|
|
|
if (m_bEnableSaveRestore)
|
|
SaveWindowRect();
|
|
|
|
// remove old windows
|
|
m_arrLayout.RemoveAll();
|
|
}
|
|
|
|
void CResizableDialog::OnPaint()
|
|
{
|
|
CPaintDC dc(this); // device context for painting
|
|
|
|
if (m_bShowGrip && !IsZoomed())
|
|
{
|
|
// draw size-grip
|
|
dc.DrawFrameControl(&m_rcGripRect, DFC_SCROLL, DFCS_SCROLLSIZEGRIP);
|
|
}
|
|
}
|
|
|
|
void CResizableDialog::OnSize(UINT nType, int cx, int cy)
|
|
{
|
|
CWnd::OnSize(nType, cx, cy);
|
|
|
|
if (nType == SIZE_MAXHIDE || nType == SIZE_MAXSHOW)
|
|
return; // arrangement not needed
|
|
|
|
if (m_bInitDone)
|
|
{
|
|
ArrangeLayout();
|
|
}
|
|
}
|
|
|
|
UINT CResizableDialog::OnNcHitTest(CPoint point)
|
|
{
|
|
CPoint pt = point;
|
|
ScreenToClient(&pt);
|
|
|
|
// if in size grip and in client area
|
|
if (m_bShowGrip && m_rcGripRect.PtInRect(pt) &&
|
|
pt.x >= 0 && pt.y >= 0)
|
|
return HTBOTTOMRIGHT;
|
|
|
|
return CDialog::OnNcHitTest(point);
|
|
}
|
|
|
|
void CResizableDialog::OnGetMinMaxInfo(MINMAXINFO FAR* lpMMI)
|
|
{
|
|
if (!m_bInitDone)
|
|
return;
|
|
|
|
if (m_bUseMinTrack)
|
|
lpMMI->ptMinTrackSize = m_ptMinTrackSize;
|
|
|
|
if (m_bUseMaxTrack)
|
|
lpMMI->ptMaxTrackSize = m_ptMaxTrackSize;
|
|
|
|
if (m_bUseMaxRect)
|
|
{
|
|
lpMMI->ptMaxPosition = m_ptMaxPos;
|
|
lpMMI->ptMaxSize = m_ptMaxSize;
|
|
}
|
|
}
|
|
|
|
// layout functions
|
|
|
|
void CResizableDialog::AddAnchor(HWND wnd, CSize tl_type, CSize br_type)
|
|
{
|
|
ASSERT(wnd != NULL && ::IsWindow(wnd));
|
|
ASSERT(::IsChild(*this, wnd));
|
|
ASSERT(tl_type != NOANCHOR);
|
|
|
|
// get control's window class
|
|
|
|
CString st;
|
|
GetClassName(wnd, st.GetBufferSetLength(MAX_PATH), MAX_PATH);
|
|
st.ReleaseBuffer();
|
|
st.MakeUpper();
|
|
|
|
// add the style 'clipsiblings' to a GroupBox
|
|
// to avoid unnecessary repainting of controls inside
|
|
if (st == "BUTTON")
|
|
{
|
|
DWORD style = GetWindowLong(wnd, GWL_STYLE);
|
|
if (style & BS_GROUPBOX)
|
|
SetWindowLong(wnd, GWL_STYLE, style | WS_CLIPSIBLINGS);
|
|
}
|
|
|
|
// wnd classes that don't redraw client area correctly
|
|
// when the hor scroll pos changes due to a resizing
|
|
BOOL hscroll = FALSE;
|
|
if (st == "LISTBOX")
|
|
hscroll = TRUE;
|
|
|
|
// wnd classes that need refresh when resized
|
|
BOOL refresh = FALSE;
|
|
if (st == "STATIC")
|
|
{
|
|
DWORD style = GetWindowLong(wnd, GWL_STYLE);
|
|
|
|
switch (style & SS_TYPEMASK)
|
|
{
|
|
case SS_LEFT:
|
|
case SS_CENTER:
|
|
case SS_RIGHT:
|
|
// word-wrapped text needs refresh
|
|
refresh = TRUE;
|
|
}
|
|
|
|
// centered images or text need refresh
|
|
if (style & SS_CENTERIMAGE)
|
|
refresh = TRUE;
|
|
|
|
// simple text never needs refresh
|
|
if (style & SS_TYPEMASK == SS_SIMPLE)
|
|
refresh = FALSE;
|
|
}
|
|
|
|
// get dialog's and control's rect
|
|
CRect wndrc, objrc;
|
|
|
|
GetClientRect(&wndrc);
|
|
::GetWindowRect(wnd, &objrc);
|
|
ScreenToClient(&objrc);
|
|
|
|
CSize tl_margin, br_margin;
|
|
|
|
if (br_type == NOANCHOR)
|
|
br_type = tl_type;
|
|
|
|
// calculate margin for the top-left corner
|
|
|
|
tl_margin.cx = objrc.left - wndrc.Width() * tl_type.cx / 100;
|
|
tl_margin.cy = objrc.top - wndrc.Height() * tl_type.cy / 100;
|
|
|
|
// calculate margin for the bottom-right corner
|
|
|
|
br_margin.cx = objrc.right - wndrc.Width() * br_type.cx / 100;
|
|
br_margin.cy = objrc.bottom - wndrc.Height() * br_type.cy / 100;
|
|
|
|
// add to the list
|
|
Layout obj(wnd, tl_type, tl_margin, br_type, br_margin, hscroll, refresh);
|
|
m_arrLayout.Add(obj);
|
|
}
|
|
|
|
void CResizableDialog::ArrangeLayout()
|
|
{
|
|
// update size-grip
|
|
InvalidateRect(&m_rcGripRect);
|
|
UpdateGripPos();
|
|
InvalidateRect(&m_rcGripRect);
|
|
|
|
// init some vars
|
|
CRect wndrc;
|
|
GetClientRect(&wndrc);
|
|
|
|
int i, count = m_arrLayout.GetSize();
|
|
HDWP hdwp = BeginDeferWindowPos(count);
|
|
|
|
for (i=0; i<count; ++i)
|
|
{
|
|
Layout& obj = m_arrLayout[i];
|
|
|
|
CRect objrc, newrc;
|
|
CWnd* wnd = CWnd::FromHandle(obj.hwnd); // temporary solution
|
|
|
|
wnd->GetWindowRect(&objrc);
|
|
ScreenToClient(&objrc);
|
|
|
|
// calculate new top-left corner
|
|
|
|
newrc.left = obj.tl_margin.cx + wndrc.Width() * obj.tl_type.cx / 100;
|
|
newrc.top = obj.tl_margin.cy + wndrc.Height() * obj.tl_type.cy / 100;
|
|
|
|
// calculate new bottom-right corner
|
|
|
|
newrc.right = obj.br_margin.cx + wndrc.Width() * obj.br_type.cx / 100;
|
|
newrc.bottom = obj.br_margin.cy + wndrc.Height() * obj.br_type.cy / 100;
|
|
|
|
if (!newrc.EqualRect(&objrc))
|
|
{
|
|
if (obj.adj_hscroll)
|
|
{
|
|
// needs repainting, due to horiz scrolling
|
|
int diff = newrc.Width() - objrc.Width();
|
|
int max = wnd->GetScrollLimit(SB_HORZ);
|
|
|
|
obj.need_refresh = FALSE;
|
|
if (max > 0 && wnd->GetScrollPos(SB_HORZ) > max - diff)
|
|
{
|
|
obj.need_refresh = TRUE;
|
|
}
|
|
}
|
|
|
|
// set flags
|
|
DWORD flags = SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREPOSITION;
|
|
if (newrc.TopLeft() == objrc.TopLeft())
|
|
flags |= SWP_NOMOVE;
|
|
if (newrc.Size() == objrc.Size())
|
|
flags |= SWP_NOSIZE;
|
|
|
|
DeferWindowPos(hdwp, obj.hwnd, NULL, newrc.left, newrc.top,
|
|
newrc.Width(), newrc.Height(), flags);
|
|
}
|
|
}
|
|
// go re-arrange child windows
|
|
EndDeferWindowPos(hdwp);
|
|
|
|
// refresh those that need
|
|
for (i=0; i<count; ++i)
|
|
{
|
|
Layout& obj = m_arrLayout[i];
|
|
CWnd* wnd = CWnd::FromHandle(obj.hwnd); // temporary solution
|
|
|
|
if (obj.need_refresh)
|
|
{
|
|
wnd->Invalidate();
|
|
wnd->UpdateWindow();
|
|
}
|
|
}
|
|
}
|
|
|
|
void CResizableDialog::UpdateGripPos()
|
|
{
|
|
// size-grip goes bottom right in the client area
|
|
|
|
GetClientRect(&m_rcGripRect);
|
|
|
|
m_rcGripRect.left = m_rcGripRect.right - m_szGripSize.cx;
|
|
m_rcGripRect.top = m_rcGripRect.bottom - m_szGripSize.cy;
|
|
}
|
|
|
|
// protected members
|
|
|
|
void CResizableDialog::ShowSizeGrip(BOOL bShow)
|
|
{
|
|
if (m_bShowGrip != bShow)
|
|
{
|
|
m_bShowGrip = bShow;
|
|
InvalidateRect(&m_rcGripRect);
|
|
}
|
|
}
|
|
|
|
void CResizableDialog::SetMaximizedRect(const CRect& rc)
|
|
{
|
|
m_bUseMaxRect = TRUE;
|
|
|
|
m_ptMaxPos = rc.TopLeft();
|
|
m_ptMaxSize.x = rc.Width();
|
|
m_ptMaxSize.y = rc.Height();
|
|
}
|
|
|
|
void CResizableDialog::ResetMaximizedRect()
|
|
{
|
|
m_bUseMaxRect = FALSE;
|
|
}
|
|
|
|
void CResizableDialog::SetMinTrackSize(const CSize& size)
|
|
{
|
|
m_bUseMinTrack = TRUE;
|
|
|
|
m_ptMinTrackSize.x = size.cx;
|
|
m_ptMinTrackSize.y = size.cy;
|
|
}
|
|
|
|
void CResizableDialog::ResetMinTrackSize()
|
|
{
|
|
m_bUseMinTrack = FALSE;
|
|
}
|
|
|
|
void CResizableDialog::SetMaxTrackSize(const CSize& size)
|
|
{
|
|
m_bUseMaxTrack = TRUE;
|
|
|
|
m_ptMaxTrackSize.x = size.cx;
|
|
m_ptMaxTrackSize.y = size.cy;
|
|
}
|
|
|
|
void CResizableDialog::ResetMaxTrackSize()
|
|
{
|
|
m_bUseMaxTrack = FALSE;
|
|
}
|
|
|
|
// NOTE: this must be called after all the other settings
|
|
// to have the dialog and its controls displayed properly
|
|
void CResizableDialog::EnableSaveRestore(LPCTSTR pszSection, LPCTSTR pszEntry)
|
|
{
|
|
m_sSection = pszSection;
|
|
m_sEntry = pszEntry;
|
|
|
|
m_bEnableSaveRestore = TRUE;
|
|
|
|
LoadWindowRect();
|
|
}
|
|
|
|
|
|
// used to save/restore window's size and position
|
|
// either in the registry or a private .INI file
|
|
// depending on your application settings
|
|
|
|
#define PROFILE_FMT _T("%d,%d,%d,%d,%d,%d")
|
|
|
|
void CResizableDialog::SaveWindowRect()
|
|
{
|
|
CString data;
|
|
WINDOWPLACEMENT wp;
|
|
|
|
ZeroMemory(&wp, sizeof(WINDOWPLACEMENT));
|
|
wp.length = sizeof(WINDOWPLACEMENT);
|
|
GetWindowPlacement(&wp);
|
|
|
|
RECT& rc = wp.rcNormalPosition; // alias
|
|
|
|
data.Format(PROFILE_FMT, rc.left, rc.top,
|
|
rc.right, rc.bottom, wp.showCmd, wp.flags);
|
|
|
|
AfxGetApp()->WriteProfileString(m_sSection, m_sEntry, data);
|
|
}
|
|
|
|
void CResizableDialog::LoadWindowRect()
|
|
{
|
|
CString data;
|
|
WINDOWPLACEMENT wp;
|
|
|
|
data = AfxGetApp()->GetProfileString(m_sSection, m_sEntry);
|
|
|
|
if (data.IsEmpty()) // never saved before
|
|
return;
|
|
|
|
ZeroMemory(&wp, sizeof(WINDOWPLACEMENT));
|
|
wp.length = sizeof(WINDOWPLACEMENT);
|
|
GetWindowPlacement(&wp);
|
|
|
|
RECT& rc = wp.rcNormalPosition; // alias
|
|
|
|
if (_stscanf(data, PROFILE_FMT, &rc.left, &rc.top,
|
|
&rc.right, &rc.bottom, &wp.showCmd, &wp.flags) == 6)
|
|
{
|
|
SetWindowPlacement(&wp);
|
|
}
|
|
}
|