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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "../../include/pdfwindow/PDFWindow.h"
#include "../../include/pdfwindow/PWL_Wnd.h"
#include "../../include/pdfwindow/PWL_ListCtrl.h"
/* ---------------------------- CPWL_ListCtrl ---------------------------- */
CPWL_ListCtrl::CPWL_ListCtrl() :
m_rcContent(0,0,0,0),
m_ptScroll(0,0),
m_fItemSpace(0.0f),
m_fTopSpace(0.0f),
m_fBottomSpace(0.0f)
{
}
CPWL_ListCtrl::~CPWL_ListCtrl()
{
}
void CPWL_ListCtrl::SetScrollPos(const CPDF_Point& point)
{
m_ptScroll = point;
if (m_ptScroll.x < m_rcContent.left)
m_ptScroll.x = m_rcContent.left;
if (m_ptScroll.x > m_rcContent.right)
m_ptScroll.x = m_rcContent.right;
if (m_ptScroll.y > m_rcContent.top)
m_ptScroll.y = m_rcContent.top;
if (m_ptScroll.y < m_rcContent.bottom)
m_ptScroll.y = m_rcContent.bottom;
}
CPDF_Point CPWL_ListCtrl::GetScrollPos() const
{
return m_ptScroll;
}
CPDF_Rect CPWL_ListCtrl::GetScrollArea() const
{
return m_rcContent;
}
void CPWL_ListCtrl::ResetFace()
{
ResetAll(false, 0);
}
void CPWL_ListCtrl::ResetContent(int32_t nStart)
{
if (nStart < 0)
nStart = 0;
if (nStart >= 0 && nStart < m_aChildren.GetSize())
ResetAll(true, nStart);
}
FX_FLOAT CPWL_ListCtrl::GetContentsHeight(FX_FLOAT fLimitWidth)
{
FX_FLOAT fRet = m_fTopSpace;
FX_FLOAT fBorderWidth = (FX_FLOAT)GetBorderWidth();
if (fLimitWidth > fBorderWidth* 2)
{
for (int32_t i=0,sz=m_aChildren.GetSize(); i<sz; i++)
{
if (CPWL_Wnd* pChild = m_aChildren.GetAt(i))
{
FX_FLOAT fLeft = pChild->GetItemLeftMargin();
FX_FLOAT fRight = pChild->GetItemRightMargin();
fRet += pChild->GetItemHeight(fLimitWidth - fBorderWidth* 2 - fLeft - fRight);
fRet += m_fItemSpace;
}
}
fRet -= m_fItemSpace;
}
fRet += m_fBottomSpace;
return fRet;
}
void CPWL_ListCtrl::ResetAll(bool bMove, int32_t nStart)
{
CPDF_Rect rcClient = GetClientRect();
FX_FLOAT fWidth = rcClient.Width();
FX_FLOAT fy = 0.0f - m_fTopSpace;
if (nStart-1 >= 0 && nStart-1 < m_aChildren.GetSize())
if (CPWL_Wnd* pChild = m_aChildren.GetAt(nStart-1))
fy = pChild->GetWindowRect().bottom - m_fItemSpace;
for (int32_t i=nStart,sz=m_aChildren.GetSize(); i<sz; i++)
{
if (CPWL_Wnd* pChild = m_aChildren.GetAt(i))
{
FX_FLOAT fLeft = pChild->GetItemLeftMargin();
FX_FLOAT fRight = pChild->GetItemRightMargin();
pChild->SetChildMatrix(
CPDF_Matrix(1,0,0,1,
rcClient.left - m_ptScroll.x,
rcClient.top - m_ptScroll.y)
);
if (bMove)
{
FX_FLOAT fItemHeight = pChild->GetItemHeight(fWidth - fLeft - fRight);
pChild->Move(CPDF_Rect(fLeft, fy-fItemHeight, fWidth - fRight, fy), true, false);
fy -= fItemHeight;
fy -= m_fItemSpace;
}
}
}
fy += m_fItemSpace;
fy -= m_fBottomSpace;
if (bMove)
{
m_rcContent.left = 0;
m_rcContent.top = 0;
m_rcContent.right = fWidth;
m_rcContent.bottom = fy;
}
}
void CPWL_ListCtrl::SetItemSpace(FX_FLOAT fSpace)
{
m_fItemSpace = fSpace;
}
void CPWL_ListCtrl::SetTopSpace(FX_FLOAT fSpace)
{
m_fTopSpace = fSpace;
}
void CPWL_ListCtrl::SetBottomSpace(FX_FLOAT fSpace)
{
m_fBottomSpace = fSpace;
}
void CPWL_ListCtrl::RePosChildWnd()
{
ResetFace();
}
void CPWL_ListCtrl::DrawChildAppearance(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device)
{
pDevice->SaveState();
CPDF_Rect rcClient = GetClientRect();
CPDF_Rect rcTemp = rcClient;
pUser2Device->TransformRect(rcTemp);
FX_RECT rcClip((int32_t)rcTemp.left,
(int32_t)rcTemp.bottom,
(int32_t)rcTemp.right,
(int32_t)rcTemp.top);
pDevice->SetClip_Rect(&rcClip);
for (int32_t i=0,sz=m_aChildren.GetSize(); i<sz; i++)
{
if (CPWL_Wnd * pChild = m_aChildren.GetAt(i))
{
CPDF_Rect rcChild = pChild->ChildToParent(pChild->GetWindowRect());
if (!(rcChild.top < rcClient.bottom || rcChild.bottom > rcClient.top))
{
CPDF_Matrix mt = pChild->GetChildMatrix();
if (mt.IsIdentity())
{
pChild->DrawAppearance(pDevice,pUser2Device);
}
else
{
mt.Concat(*pUser2Device);
pChild->DrawAppearance(pDevice,&mt);
}
}
}
}
pDevice->RestoreState();
}
int32_t CPWL_ListCtrl::GetItemIndex(CPWL_Wnd* pItem)
{
for (int32_t i=0, sz=m_aChildren.GetSize(); i<sz; i++)
{
if (pItem == m_aChildren.GetAt(i))
return i;
}
return -1;
}
CPDF_Point CPWL_ListCtrl::InToOut(const CPDF_Point& point) const
{
CPDF_Rect rcClient = GetClientRect();
return CPDF_Point(point.x + rcClient.left - m_ptScroll.x,
point.y + rcClient.top - m_ptScroll.y);
}
CPDF_Point CPWL_ListCtrl::OutToIn(const CPDF_Point& point) const
{
CPDF_Rect rcClient = GetClientRect();
return CPDF_Point(point.x - rcClient.left + m_ptScroll.x,
point.y - rcClient.top + m_ptScroll.y);
}
CPDF_Rect CPWL_ListCtrl::InToOut(const CPDF_Rect& rect) const
{
CPDF_Rect rcClient = GetClientRect();
return CPDF_Rect(rect.left + rcClient.left - m_ptScroll.x,
rect.bottom + rcClient.top - m_ptScroll.y,
rect.right + rcClient.left - m_ptScroll.x,
rect.top + rcClient.top - m_ptScroll.y);
}
CPDF_Rect CPWL_ListCtrl::OutToIn(const CPDF_Rect& rect) const
{
CPDF_Rect rcClient = GetClientRect();
return CPDF_Rect(rect.left - rcClient.left + m_ptScroll.x,
rect.bottom - rcClient.top + m_ptScroll.y,
rect.right - rcClient.left + m_ptScroll.x,
rect.top - rcClient.top + m_ptScroll.y);
}
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