void CUIComboBox::DoPaint(HDC hDC, const RECT& rcPaint)
{
// Paint the nice frame
int cy = m_rcItem.bottom - m_rcItem.top;
::SetRect(&m_rcButton, m_rcItem.right - cy, m_rcItem.top, m_rcItem.right, m_rcItem.bottom);
RECT rcText = { m_rcItem.left + 5, m_rcItem.top, m_rcButton.left + 1, m_rcItem.bottom };
UINT uState = m_uButtonState;
if( IsFocused() ) uState |= UISTATE_FOCUSED;
if( !IsEnabled() ) uState |= UISTATE_DISABLED;
RECT rcPadding = { 0 };
// Paint dropdown button
if (m_pImageOwner != NULL)
{
RECT rcImage = {0};
int nWidth = m_pImageOwner->GetWidth() / 4;
int nHeight = m_pImageOwner->GetHeight();
// Draw frame and body
if( (uState & UISTATE_DISABLED) != 0 ) {
RECT rcTemp = {nWidth *3, 0, nWidth * 4, nHeight};
rcImage = rcTemp;
}
else if( (uState & UISTATE_PUSHED) != 0 ) {
RECT rcTemp ={nWidth *2, 0, nWidth * 3, nHeight};
rcImage = rcTemp;
}
else if( (uState & UISTATE_HOT) != 0 ) {
RECT rcTemp ={nWidth *1, 0, nWidth * 2, nHeight};
rcImage = rcTemp;
}
else {
RECT rcTemp ={nWidth *0, 0, nWidth * 1, nHeight};
rcImage = rcTemp;
}
CUIBlueRenderEngine::DoFillRect(hDC, m_pManager, m_rcItem, rcImage, m_pImageOwner);
}
else
{
CUIBlueRenderEngine::DoPaintButton(hDC, m_pManager, m_rcItem, uState, NULL, 0);
}
if (m_sText.GetLength() > 0)
{
UITYPE_COLOR clrText;
if( (m_uButtonState & UISTATE_DISABLED) != 0 ) {
clrText = UICOLOR_BUTTON_TEXT_DISABLED;
}
else if( (m_uButtonState & UISTATE_PUSHED) != 0 ) {
clrText = UICOLOR_BUTTON_TEXT_PUSHED;
}
else {
clrText = UICOLOR_BUTTON_TEXT_NORMAL;
}
RECT rcText = m_rcItem;
::InflateRect(&rcText, -1, -1);
rcText.left += rcPadding.left;
rcText.top += rcPadding.top;
rcText.right -= rcPadding.right;
rcText.bottom -= rcPadding.bottom;
int nLinks = 0;
CUIBlueRenderEngine::DoPaintPrettyText(hDC, m_pManager, rcText, m_sText, clrText, UICOLOR__INVALID, NULL, nLinks, 0);
}
// Paint dropdown edit box
::InflateRect(&rcText, -1, -1);
if( m_iCurSel >= 0 ) {
CUIControl* pControl = static_cast<CUIControl*>(m_items[m_iCurSel]);
IListItemUI* pElement = static_cast<IListItemUI*>(pControl->GetInterface(_T("ListItem")));
if( pElement != NULL ) {
// Render item with specific draw-style
int nLinks = 0;
CUIBlueRenderEngine::DoPaintPrettyText(hDC, m_pManager, rcText, pControl->GetText(), UICOLOR_CONTROL_TEXT_NORMAL, UICOLOR__INVALID, NULL, nLinks, DT_SINGLELINE | DT_VCENTER);
}
else {
//// Allow non-listitems to render as well.
RECT rcOldPos = pControl->GetPos();
pControl->SetPos(rcText);
pControl->DoPaint(hDC, rcText);
pControl->SetPos(rcOldPos);
}
}
}
void CUIVerticalLayout::SetPos(const CUIRect& rc)
{
CUIRect rcTemp = rc;
CUIControl::SetPos(rc);
rcTemp = m_rcItem;
//
// 调整内边距
//
rcTemp.left += m_rcInset.left;
rcTemp.top += m_rcInset.top;
rcTemp.right -= m_rcInset.right;
rcTemp.bottom -= m_rcInset.bottom;
if( m_items.GetSize() == 0) {
ProcessScrollBar(rcTemp, 0, 0);
return;
}
//
// 如果有滚动条，减去滚动条的宽度
//
if(m_pVerticalScrollBar && m_pVerticalScrollBar->IsVisible())
rcTemp.right -= m_pVerticalScrollBar->GetFixedWidth();
if(m_pHorizontalScrollBar && m_pHorizontalScrollBar->IsVisible())
rcTemp.bottom -= m_pHorizontalScrollBar->GetFixedHeight();
//
// Determine the minimum size
//
SIZE szAvailable = { rcTemp.right - rcTemp.left, rcTemp.bottom - rcTemp.top };
if( m_pHorizontalScrollBar && m_pHorizontalScrollBar->IsVisible() )
szAvailable.cx += m_pHorizontalScrollBar->GetScrollRange();
int nAdjustables = 0; //要调整控件的个数
int cyFixed = 0; //控件固定的宽度
int nEstimateNum = 0; //调整控件的个数
for( int it1 = 0; it1 < m_items.GetSize(); it1++ ) {
CUIControl* pControl = static_cast<CUIControl*>(m_items[it1]);
//
// 控件不可见不进行处理
//
if(!pControl->IsVisible())
continue;
//
// 控件为float类型的不进行处理
//
if(pControl->IsFloat())
continue;
SIZE sz = pControl->EstimateSize(szAvailable);
if(sz.cy == 0) {
//
// 高度等于0需要我们来计算
//
nAdjustables++;
}else{
//
// 不能超出控件的设置的最小和最大值
//
if( sz.cy < pControl->GetMinHeight() )
sz.cy = pControl->GetMinHeight();
if( sz.cy > pControl->GetMaxHeight() )
sz.cy = pControl->GetMaxHeight();
}
//
// 加上下外边距
//
cyFixed += sz.cy + pControl->GetPadding().top + pControl->GetPadding().bottom;
nEstimateNum++;
}
//
// 加上子控件之间的额外距离
//
cyFixed += (nEstimateNum - 1) * m_iChildPadding;
//
// Place elements
//
int cyNeeded = 0;
int cyExpand = 0;
//
// 计算要调整的每个控件的平均高度
//
if( nAdjustables > 0 )
cyExpand = MAX(0, (szAvailable.cy - cyFixed) / nAdjustables);
//
// Position the elements
// 减去滚动条的位置
//
SIZE szRemaining = szAvailable;
int iPosY = rcTemp.top;
if(m_pVerticalScrollBar && m_pVerticalScrollBar->IsVisible()) {
iPosY -= m_pVerticalScrollBar->GetScrollPos();
}
int iPosX = rcTemp.left;
if(m_pHorizontalScrollBar && m_pHorizontalScrollBar->IsVisible()) {
iPosX -= m_pHorizontalScrollBar->GetScrollPos();
}
int iAdjustable = 0;
int cyFixedRemaining = cyFixed;
for( int it2 = 0; it2 < m_items.GetSize(); it2++ ) {
CUIControl* pControl = static_cast<CUIControl*>(m_items[it2]);
if( !pControl->IsVisible() )
continue;
if( pControl->IsFloat() ) {
SetFloatPos(it2);
continue;
}
RECT rcPadding = pControl->GetPadding();
szRemaining.cy -= rcPadding.top;
CUISize sz = pControl->EstimateSize(szRemaining);
if(sz.cy == 0){
iAdjustable++;
//
// 赋平均值
//
sz.cy = cyExpand;
if( iAdjustable == nAdjustables ) {
//
// Distribute remaining to last element (usually round-off left-overs)
//
sz.cy = MAX(0, szRemaining.cy - rcPadding.bottom - cyFixedRemaining);
}
//
// 不能超过控件的最大与最小值
//
if( sz.cy < pControl->GetMinHeight() ) sz.cy = pControl->GetMinHeight();
if( sz.cy > pControl->GetMaxHeight() ) sz.cy = pControl->GetMaxHeight();
}else{
//
// 固定高度的控件
//
if( sz.cy < pControl->GetMinHeight() ) sz.cy = pControl->GetMinHeight();
if( sz.cy > pControl->GetMaxHeight() ) sz.cy = pControl->GetMaxHeight();
cyFixedRemaining -= sz.cy;
}
//
// 调整宽度的值
//
sz.cx = pControl->GetFixedWidth();
if( sz.cx == 0 ) sz.cx = szAvailable.cx - rcPadding.left - rcPadding.right;
if( sz.cx < 0 ) sz.cx = 0;
if( sz.cx < pControl->GetMinWidth() ) sz.cx = pControl->GetMinWidth();
if( sz.cx > pControl->GetMaxWidth() ) sz.cx = pControl->GetMaxWidth();
//
// 生成并设置新的POS
//
CUIRect rcCtrl(iPosX + rcPadding.left, iPosY + rcPadding.top, iPosX + rcPadding.left + sz.cx,
iPosY + sz.cy + rcPadding.top + rcPadding.bottom);
pControl->SetPos(rcCtrl);
//
// 处理下ChildPadding
//
iPosY += sz.cy + m_iChildPadding + rcPadding.top + rcPadding.bottom;
cyNeeded += sz.cy + rcPadding.top + rcPadding.bottom;
szRemaining.cy -= sz.cy + m_iChildPadding + rcPadding.bottom;
}
cyNeeded += (nEstimateNum - 1) * m_iChildPadding;
//
// Process the scrollbar
//
ProcessScrollBar(rcTemp, 0, cyNeeded);
}
