mirror of
https://github.com/duilib/duilib.git
synced 2026-10-18 14:50:35 +08:00
miaoqing.wmq
333 lines
12 KiB
C++
333 lines
12 KiB
C++
#include "stdafx.h"
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#include "UIHorizontalLayout.h"
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namespace DuiLib
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{
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CHorizontalLayoutUI::CHorizontalLayoutUI() : m_iSepWidth(0), m_uButtonState(0), m_bImmMode(false)
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{
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m_ptLastMouse.x = m_ptLastMouse.y = 0;
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::ZeroMemory(&m_rcNewPos, sizeof(m_rcNewPos));
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}
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LPCTSTR CHorizontalLayoutUI::GetClass() const
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{
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return DUI_CTR_HORIZONTALLAYOUT;
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}
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LPVOID CHorizontalLayoutUI::GetInterface(LPCTSTR pstrName)
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{
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if( _tcscmp(pstrName, DUI_CTR_HORIZONTALLAYOUT) == 0 ) return static_cast<CHorizontalLayoutUI*>(this);
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return CContainerUI::GetInterface(pstrName);
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}
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UINT CHorizontalLayoutUI::GetControlFlags() const
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{
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if( IsEnabled() && m_iSepWidth != 0 ) return UIFLAG_SETCURSOR;
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else return 0;
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}
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void CHorizontalLayoutUI::SetPos(RECT rc, bool bNeedInvalidate)
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{
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CControlUI::SetPos(rc, bNeedInvalidate);
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rc = m_rcItem;
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// Adjust for inset
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rc.left += m_rcInset.left;
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rc.top += m_rcInset.top;
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rc.right -= m_rcInset.right;
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rc.bottom -= m_rcInset.bottom;
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if( m_pVerticalScrollBar && m_pVerticalScrollBar->IsVisible() ) rc.right -= m_pVerticalScrollBar->GetFixedWidth();
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if( m_pHorizontalScrollBar && m_pHorizontalScrollBar->IsVisible() ) rc.bottom -= m_pHorizontalScrollBar->GetFixedHeight();
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if( m_items.GetSize() == 0) {
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ProcessScrollBar(rc, 0, 0);
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return;
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}
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// Determine the minimum size
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SIZE szAvailable = { rc.right - rc.left, rc.bottom - rc.top };
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if( m_pHorizontalScrollBar && m_pHorizontalScrollBar->IsVisible() )
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szAvailable.cx += m_pHorizontalScrollBar->GetScrollRange();
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if( m_pVerticalScrollBar && m_pVerticalScrollBar->IsVisible() )
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szAvailable.cy += m_pVerticalScrollBar->GetScrollRange();
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int cyNeeded = 0;
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int nAdjustables = 0;
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int cxFixed = 0;
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int nEstimateNum = 0;
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SIZE szControlAvailable;
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int iControlMaxWidth = 0;
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int iControlMaxHeight = 0;
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for( int it1 = 0; it1 < m_items.GetSize(); it1++ ) {
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CControlUI* pControl = static_cast<CControlUI*>(m_items[it1]);
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if( !pControl->IsVisible() ) continue;
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if( pControl->IsFloat() ) continue;
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szControlAvailable = szAvailable;
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RECT rcPadding = pControl->GetPadding();
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szControlAvailable.cy -= rcPadding.top + rcPadding.bottom;
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iControlMaxWidth = pControl->GetFixedWidth();
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iControlMaxHeight = pControl->GetFixedHeight();
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if (iControlMaxWidth <= 0) iControlMaxWidth = pControl->GetMaxWidth();
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if (iControlMaxHeight <= 0) iControlMaxHeight = pControl->GetMaxHeight();
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if (szControlAvailable.cx > iControlMaxWidth) szControlAvailable.cx = iControlMaxWidth;
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if (szControlAvailable.cy > iControlMaxHeight) szControlAvailable.cy = iControlMaxHeight;
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SIZE sz = { 0 };
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if (pControl->GetFixedWidth() == 0) {
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nAdjustables++;
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sz.cy = pControl->GetFixedHeight();
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}
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else {
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sz = pControl->EstimateSize(szControlAvailable);
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if (sz.cx == 0) {
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nAdjustables++;
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}
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else {
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if (sz.cx < pControl->GetMinWidth()) sz.cx = pControl->GetMinWidth();
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if (sz.cx > pControl->GetMaxWidth()) sz.cx = pControl->GetMaxWidth();
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}
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}
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cxFixed += sz.cx + pControl->GetPadding().left + pControl->GetPadding().right;
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sz.cy = MAX(sz.cy, 0);
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if( sz.cy < pControl->GetMinHeight() ) sz.cy = pControl->GetMinHeight();
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if( sz.cy > pControl->GetMaxHeight() ) sz.cy = pControl->GetMaxHeight();
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cyNeeded = MAX(cyNeeded, sz.cy + rcPadding.top + rcPadding.bottom);
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nEstimateNum++;
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}
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cxFixed += (nEstimateNum - 1) * m_iChildPadding;
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// Place elements
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int cxNeeded = 0;
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int cxExpand = 0;
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if( nAdjustables > 0 ) cxExpand = MAX(0, (szAvailable.cx - cxFixed) / nAdjustables);
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// Position the elements
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SIZE szRemaining = szAvailable;
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int iPosX = rc.left;
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if( m_pHorizontalScrollBar && m_pHorizontalScrollBar->IsVisible() ) {
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iPosX -= m_pHorizontalScrollBar->GetScrollPos();
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}
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int iEstimate = 0;
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int iAdjustable = 0;
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int cxFixedRemaining = cxFixed;
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for( int it2 = 0; it2 < m_items.GetSize(); it2++ ) {
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CControlUI* pControl = static_cast<CControlUI*>(m_items[it2]);
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if( !pControl->IsVisible() ) continue;
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if( pControl->IsFloat() ) {
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SetFloatPos(it2);
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continue;
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}
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iEstimate += 1;
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RECT rcPadding = pControl->GetPadding();
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szRemaining.cx -= rcPadding.left;
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szControlAvailable = szRemaining;
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szControlAvailable.cy -= rcPadding.top + rcPadding.bottom;
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iControlMaxWidth = pControl->GetFixedWidth();
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iControlMaxHeight = pControl->GetFixedHeight();
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if (iControlMaxWidth <= 0) iControlMaxWidth = pControl->GetMaxWidth();
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if (iControlMaxHeight <= 0) iControlMaxHeight = pControl->GetMaxHeight();
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if (szControlAvailable.cx > iControlMaxWidth) szControlAvailable.cx = iControlMaxWidth;
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if (szControlAvailable.cy > iControlMaxHeight) szControlAvailable.cy = iControlMaxHeight;
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cxFixedRemaining = cxFixedRemaining - (rcPadding.left + rcPadding.right);
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if (iEstimate > 1) cxFixedRemaining = cxFixedRemaining - m_iChildPadding;
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SIZE sz = pControl->EstimateSize(szControlAvailable);
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if (pControl->GetFixedWidth() == 0 || sz.cx == 0) {
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iAdjustable++;
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sz.cx = cxExpand;
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// Distribute remaining to last element (usually round-off left-overs)
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if( iAdjustable == nAdjustables ) {
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sz.cx = MAX(0, szRemaining.cx - rcPadding.right - cxFixedRemaining);
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}
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if( sz.cx < pControl->GetMinWidth() ) sz.cx = pControl->GetMinWidth();
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if( sz.cx > pControl->GetMaxWidth() ) sz.cx = pControl->GetMaxWidth();
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}
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else {
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if( sz.cx < pControl->GetMinWidth() ) sz.cx = pControl->GetMinWidth();
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if( sz.cx > pControl->GetMaxWidth() ) sz.cx = pControl->GetMaxWidth();
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cxFixedRemaining -= sz.cx;
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}
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sz.cy = pControl->GetMaxHeight();
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if( sz.cy == 0 ) sz.cy = szAvailable.cy - rcPadding.top - rcPadding.bottom;
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if( sz.cy < 0 ) sz.cy = 0;
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if( sz.cy > szControlAvailable.cy ) sz.cy = szControlAvailable.cy;
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if( sz.cy < pControl->GetMinHeight() ) sz.cy = pControl->GetMinHeight();
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UINT iChildAlign = GetChildVAlign();
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if (iChildAlign == DT_VCENTER) {
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int iPosY = (rc.bottom + rc.top) / 2;
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if( m_pVerticalScrollBar && m_pVerticalScrollBar->IsVisible() ) {
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iPosY += m_pVerticalScrollBar->GetScrollRange() / 2;
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iPosY -= m_pVerticalScrollBar->GetScrollPos();
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}
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RECT rcCtrl = { iPosX + rcPadding.left, iPosY - sz.cy/2, iPosX + sz.cx + rcPadding.left, iPosY + sz.cy - sz.cy/2 };
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pControl->SetPos(rcCtrl, false);
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}
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else if (iChildAlign == DT_BOTTOM) {
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int iPosY = rc.bottom;
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if( m_pVerticalScrollBar && m_pVerticalScrollBar->IsVisible() ) {
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iPosY += m_pVerticalScrollBar->GetScrollRange();
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iPosY -= m_pVerticalScrollBar->GetScrollPos();
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}
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RECT rcCtrl = { iPosX + rcPadding.left, iPosY - rcPadding.bottom - sz.cy, iPosX + sz.cx + rcPadding.left, iPosY - rcPadding.bottom };
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pControl->SetPos(rcCtrl, false);
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}
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else {
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int iPosY = rc.top;
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if( m_pVerticalScrollBar && m_pVerticalScrollBar->IsVisible() ) {
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iPosY -= m_pVerticalScrollBar->GetScrollPos();
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}
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RECT rcCtrl = { iPosX + rcPadding.left, iPosY + rcPadding.top, iPosX + sz.cx + rcPadding.left, iPosY + sz.cy + rcPadding.top };
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pControl->SetPos(rcCtrl, false);
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}
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iPosX += sz.cx + m_iChildPadding + rcPadding.left + rcPadding.right;
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cxNeeded += sz.cx + rcPadding.left + rcPadding.right;
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szRemaining.cx -= sz.cx + m_iChildPadding + rcPadding.right;
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}
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cxNeeded += (nEstimateNum - 1) * m_iChildPadding;
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// Process the scrollbar
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ProcessScrollBar(rc, cxNeeded, cyNeeded);
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}
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void CHorizontalLayoutUI::DoPostPaint(HDC hDC, const RECT& rcPaint)
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{
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if( (m_uButtonState & UISTATE_CAPTURED) != 0 && !m_bImmMode ) {
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RECT rcSeparator = GetThumbRect(true);
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CRenderEngine::DrawColor(hDC, rcSeparator, 0xAA000000);
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}
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}
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void CHorizontalLayoutUI::SetSepWidth(int iWidth)
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{
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m_iSepWidth = iWidth;
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}
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int CHorizontalLayoutUI::GetSepWidth() const
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{
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return m_iSepWidth;
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}
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void CHorizontalLayoutUI::SetSepImmMode(bool bImmediately)
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{
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if( m_bImmMode == bImmediately ) return;
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if( (m_uButtonState & UISTATE_CAPTURED) != 0 && !m_bImmMode && m_pManager != NULL ) {
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m_pManager->RemovePostPaint(this);
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}
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m_bImmMode = bImmediately;
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}
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bool CHorizontalLayoutUI::IsSepImmMode() const
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{
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return m_bImmMode;
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}
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void CHorizontalLayoutUI::SetAttribute(LPCTSTR pstrName, LPCTSTR pstrValue)
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{
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if( _tcscmp(pstrName, _T("sepwidth")) == 0 ) SetSepWidth(_ttoi(pstrValue));
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else if( _tcscmp(pstrName, _T("sepimm")) == 0 ) SetSepImmMode(_tcscmp(pstrValue, _T("true")) == 0);
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else CContainerUI::SetAttribute(pstrName, pstrValue);
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}
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void CHorizontalLayoutUI::DoEvent(TEventUI& event)
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{
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if( m_iSepWidth != 0 ) {
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if( event.Type == UIEVENT_BUTTONDOWN && IsEnabled() )
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{
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RECT rcSeparator = GetThumbRect(false);
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if( ::PtInRect(&rcSeparator, event.ptMouse) ) {
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m_uButtonState |= UISTATE_CAPTURED;
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m_ptLastMouse = event.ptMouse;
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m_rcNewPos = m_rcItem;
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if( !m_bImmMode && m_pManager ) m_pManager->AddPostPaint(this);
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return;
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}
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}
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if( event.Type == UIEVENT_BUTTONUP )
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{
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if( (m_uButtonState & UISTATE_CAPTURED) != 0 ) {
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m_uButtonState &= ~UISTATE_CAPTURED;
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m_rcItem = m_rcNewPos;
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if( !m_bImmMode && m_pManager ) m_pManager->RemovePostPaint(this);
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NeedParentUpdate();
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return;
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}
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}
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if( event.Type == UIEVENT_MOUSEMOVE )
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{
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if( (m_uButtonState & UISTATE_CAPTURED) != 0 ) {
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LONG cx = event.ptMouse.x - m_ptLastMouse.x;
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m_ptLastMouse = event.ptMouse;
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RECT rc = m_rcNewPos;
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if( m_iSepWidth >= 0 ) {
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if( cx > 0 && event.ptMouse.x < m_rcNewPos.right - m_iSepWidth ) return;
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if( cx < 0 && event.ptMouse.x > m_rcNewPos.right ) return;
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rc.right += cx;
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if( rc.right - rc.left <= GetMinWidth() ) {
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if( m_rcNewPos.right - m_rcNewPos.left <= GetMinWidth() ) return;
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rc.right = rc.left + GetMinWidth();
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}
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if( rc.right - rc.left >= GetMaxWidth() ) {
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if( m_rcNewPos.right - m_rcNewPos.left >= GetMaxWidth() ) return;
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rc.right = rc.left + GetMaxWidth();
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}
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}
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else {
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if( cx > 0 && event.ptMouse.x < m_rcNewPos.left ) return;
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if( cx < 0 && event.ptMouse.x > m_rcNewPos.left - m_iSepWidth ) return;
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rc.left += cx;
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if( rc.right - rc.left <= GetMinWidth() ) {
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if( m_rcNewPos.right - m_rcNewPos.left <= GetMinWidth() ) return;
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rc.left = rc.right - GetMinWidth();
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}
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if( rc.right - rc.left >= GetMaxWidth() ) {
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if( m_rcNewPos.right - m_rcNewPos.left >= GetMaxWidth() ) return;
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rc.left = rc.right - GetMaxWidth();
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}
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}
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CDuiRect rcInvalidate = GetThumbRect(true);
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m_rcNewPos = rc;
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m_cxyFixed.cx = m_rcNewPos.right - m_rcNewPos.left;
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if( m_bImmMode ) {
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m_rcItem = m_rcNewPos;
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NeedParentUpdate();
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}
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else {
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rcInvalidate.Join(GetThumbRect(true));
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rcInvalidate.Join(GetThumbRect(false));
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if( m_pManager ) m_pManager->Invalidate(rcInvalidate);
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}
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return;
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}
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}
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if( event.Type == UIEVENT_SETCURSOR )
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{
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RECT rcSeparator = GetThumbRect(false);
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if( IsEnabled() && ::PtInRect(&rcSeparator, event.ptMouse) ) {
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::SetCursor(::LoadCursor(NULL, MAKEINTRESOURCE(IDC_SIZEWE)));
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return;
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}
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}
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}
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CContainerUI::DoEvent(event);
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}
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RECT CHorizontalLayoutUI::GetThumbRect(bool bUseNew) const
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{
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if( (m_uButtonState & UISTATE_CAPTURED) != 0 && bUseNew) {
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if( m_iSepWidth >= 0 ) return CDuiRect(m_rcNewPos.right - m_iSepWidth, m_rcNewPos.top, m_rcNewPos.right, m_rcNewPos.bottom);
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else return CDuiRect(m_rcNewPos.left, m_rcNewPos.top, m_rcNewPos.left - m_iSepWidth, m_rcNewPos.bottom);
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}
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else {
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if( m_iSepWidth >= 0 ) return CDuiRect(m_rcItem.right - m_iSepWidth, m_rcItem.top, m_rcItem.right, m_rcItem.bottom);
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else return CDuiRect(m_rcItem.left, m_rcItem.top, m_rcItem.left - m_iSepWidth, m_rcItem.bottom);
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}
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}
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}
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