// For the layout engine.
BOOL ClsFlatButton::OnGetMinSize( ClsSize& szMinSize )
{
// Add room for the frame.
szMinSize.CX() += ::GetSystemMetrics( SM_CXFRAME ) * 3;
// For vista and up we use different numbers.
if ( ClsGetApp()->GetMajorVersion() >= 6 )
{
szMinSize.CY() += ::GetSystemMetrics( SM_CYFRAME ) * 1 + 4;
}
else
{
szMinSize.CY() += ::GetSystemMetrics( SM_CYFRAME ) * 3;
}
// Images?
int cxi = 0, cyi = 0;
if ( m_hImages && ImageList_GetImageCount( m_hImages ))
{
// Get the image size.
ImageList_GetIconSize( m_hImages, &cxi, &cyi );
// Make room.
cxi += 4;
// Add sizes.
szMinSize.CX() += cxi;
szMinSize.CY() += cyi;
}
// Do we have a caption?
ClsString str( GetSafeHWND());
if ( str.GetStringLength())
{
// Setup the DC.
ClsGetDC dc( this );
ClsFont font;
GetFont( font );
ClsSelector sel( &dc, font );
// Measure the caption.
ClsRect rc;
dc.DrawText( str, rc, DT_CALCRECT );
// Add the width of the caption.
szMinSize.CX() += rc.Width() + 4;
// Adjust the height if necessary.
if ( rc.Height() > cyi )
szMinSize.CY() += rc.Height() - cyi;
}
return TRUE;
}
BOOL ClsPanel::OnGetMinSize( ClsSize& szMinSize )
{
// Use the minimum button size.
szMinSize.CX() = szMinSize.CY() = 0;
m_pPanelCaption->OnGetMinSize( szMinSize );
// Store the button height.
m_nCaptionHeight = szMinSize.CY();
return TRUE;
}
// Calculate the minimum size of a
// vertical group.
BOOL ClsLayoutEngine::GroupVMinSize( ClsSize& szMinSize )
{
// Reset values.
m_nFixedSize = m_nFullWeight = 0;
// Query minimum sizes.
if ( MaxMinSize() == FALSE )
return FALSE;
// Iterate members.
ClsMember *pMember;
for ( pMember = m_Members.GetFirst(); pMember; pMember = m_Members.GetNext( pMember ))
{
// Is it a spacing member?
if (( pMember->m_dwFlags & ClsMember::MF_SPACING ) != ClsMember::MF_SPACING )
{
// Is it a equal height group?
if ( m_dwFlags & LF_EQUALHEIGHT )
// Make the group it's minimum height the
// member it's minimum height.
pMember->m_nMinHeight = m_nMaxMinHeight;
}
}
// Iterate members.
UINT nWidth = 0, nHeight = 0;
for ( pMember = m_Members.GetFirst(); pMember; pMember = m_Members.GetNext( pMember ))
{
// Does the member have fixed minimum dimensions?
if (( pMember->m_dwFlags & ClsMember::MF_ASKMIN ) != ClsMember::MF_ASKMIN)
{
// Is it a fixed height member?
if ( pMember->m_dwFlags & ClsMember::MF_FIXEDHEIGHT )
// Increase the group it's fixed height.
m_nFixedSize += pMember->m_nFixedHeight;
else
{
// Increase the group height and total weight.
nHeight += pMember->m_nMinHeight;
m_nFullWeight += pMember->m_nWeight;
}
}
else
{
// Is it a fixed height member?
if ( pMember->m_dwFlags & ClsMember::MF_FIXEDHEIGHT )
{
// Make the fixed height the minimum height.
m_nFixedSize += pMember->m_nMinHeight;
pMember->m_nFixedHeight = pMember->m_nMinHeight;
}
else
{
// Increase the group height and total weight.
nHeight += pMember->m_nMinHeight;
m_nFullWeight += pMember->m_nWeight;
}
}
// Does the member have fixed minimum dimensions?
if (( pMember->m_dwFlags & ClsMember::MF_ASKMIN ) != ClsMember::MF_ASKMIN )
{
// Does it have a fixed width?
if ( pMember->m_dwFlags & ClsMember::MF_FIXEDWIDTH )
{
// Store the width when it is larger than
// the width sofar.
if ( pMember->m_nFixedWidth > nWidth )
nWidth = pMember->m_nFixedWidth;
}
else
{
// Store the width when it is larger than
// the width sofar.
if ( pMember->m_nMinWidth > nWidth )
nWidth = pMember->m_nMinWidth;
}
}
else
{
// Does it have a fixed width?
if ( pMember->m_dwFlags & ClsMember::MF_FIXEDWIDTH )
// Make the fixed width the minimum width.
pMember->m_nFixedWidth = pMember->m_nMinWidth;
// Store the width when it is larger than the width
// sofar.
if ( pMember->m_nMinWidth > nWidth )
nWidth = pMember->m_nMinWidth;
}
}
// Add the offsets etc. to the sizes. The result will be the total
// group minimum dimensions.
nHeight += m_nFixedSize + ( m_rcOffsets.Top() + m_rcOffsets.Bottom() + (( m_Members.GetSize() - 1 ) * m_nSpacing ));
nWidth += ( m_rcOffsets.Left() + m_rcOffsets.Right());
// Adjust for the frame.
if ( m_bFrameGroup && m_Frame.GetSafeHWND())
{
nWidth += ( ::GetSystemMetrics( SM_CXEDGE )) * 2 + ( m_nSpacing * 2 );
nHeight += ::GetSystemMetrics( SM_CYEDGE ) + ( m_nFontHeight + ( m_nSpacing * 2 ));
}
// Store the values.
szMinSize.CX() = max( 1, nWidth );
szMinSize.CY() = max( 1, nHeight );
// Success...
return TRUE;
}
// For the layout engine.
BOOL ClsSplitter::OnGetMinSize( ClsSize& szMinSize )
{
// Setup values.
szMinSize.CX() = szMinSize.CY() = SPLITTER_SIZE;
return TRUE;
}
// Calculate the minumum size of a
// horizontal group.
BOOL ClsLayoutEngine::GroupHMinSize( ClsSize& szMinSize )
{
// Reset values.
m_nFullWeight = m_nFixedSize = 0;
// Query minimum sizes.
if ( MaxMinSize() == FALSE )
return FALSE;
// Scan through the members.
ClsMember *pMember;
UINT nWidth = 0, nHeight = 0;
for ( pMember = m_Members.GetFirst(); pMember; pMember = m_Members.GetNext( pMember ))
{
// Is this a spacing member?
if (( pMember->m_dwFlags & ClsMember::MF_SPACING ) != ClsMember::MF_SPACING )
{
// No. If this group has equal widths we set the
// witdth of the member to the group width.
if ( m_dwFlags & LF_EQUALWIDTH )
pMember->m_nMinWidth = m_nMaxMinWidth;
}
// Does the member have fixed minimum dimensions?
if (( pMember->m_dwFlags & ClsMember::MF_ASKMIN ) != ClsMember::MF_ASKMIN )
{
// No. Is it a fixed width object?
if ( pMember->m_dwFlags & ClsMember::MF_FIXEDWIDTH )
// Increase the group it's total fixed width.
m_nFixedSize += pMember->m_nFixedWidth;
else
{
// Increase the groups width and the total
// weight.
nWidth += pMember->m_nMinWidth;
m_nFullWeight += pMember->m_nWeight;
}
}
else
{
// Is it a fixed width member?
if ( pMember->m_dwFlags & ClsMember::MF_FIXEDWIDTH )
{
// Increase the total fixed width by the member
// it's minimum width.
m_nFixedSize += pMember->m_nMinWidth;
pMember->m_nFixedWidth = pMember->m_nMinWidth;
}
else
{
// Increase the group width and the total weight.
nWidth += pMember->m_nMinWidth;
m_nFullWeight += pMember->m_nWeight;
}
}
// Does the member have fixed minimum dimensions?
if (( pMember->m_dwFlags & ClsMember::MF_ASKMIN ) != ClsMember::MF_ASKMIN )
{
// Is it a fixed height object?
if ( pMember->m_dwFlags & ClsMember::MF_FIXEDHEIGHT )
{
// Store the member height when it is larger than
// the height sofar.
if ( pMember->m_nFixedHeight > nHeight )
nHeight = pMember->m_nFixedHeight;
}
else
{
// Store the member minimum height when it is larger
// than the height sofar.
if ( pMember->m_nMinHeight > nHeight )
nHeight = pMember->m_nMinHeight;
}
}
else
{
// Is it a fixed height object?
if ( pMember->m_dwFlags & ClsMember::MF_FIXEDHEIGHT )
// Store the minimum height as the fixed height.
pMember->m_nFixedHeight = pMember->m_nMinHeight;
// Store the height when it is larger than
// the height sofar.
if ( pMember->m_nMinHeight > nHeight )
nHeight = pMember->m_nMinHeight;
}
}
// Add the offsets etc. to the sizes. The result will be the total
// group minimum dimensions.
nWidth += m_nFixedSize + ( m_rcOffsets.Left() + m_rcOffsets.Right() + (( m_Members.GetSize() - 1 ) * m_nSpacing ));
nHeight += ( m_rcOffsets.Top() + m_rcOffsets.Bottom());
// Adjust for the frame.
if ( m_bFrameGroup && m_Frame.GetSafeHWND())
{
nWidth += ( ::GetSystemMetrics( SM_CXEDGE ) * 2 ) + ( m_nSpacing * 2 );
nHeight += ::GetSystemMetrics( SM_CYEDGE ) + ( m_nFontHeight + ( m_nSpacing * 2 ));
}
// Store the values.
szMinSize.CX() = max( 1, nWidth );
szMinSize.CY() = max( 1, nHeight );
// Success...
return TRUE;
}
