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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 "core/fxge/include/fx_ge.h"
#include "fpdfsdk/pdfwindow/PWL_ListCtrl.h"
#include "fpdfsdk/pdfwindow/PWL_Wnd.h"
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 CFX_FloatPoint& 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;
}
CFX_FloatPoint CPWL_ListCtrl::GetScrollPos() const {
return m_ptScroll;
}
CFX_FloatRect 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(FX_BOOL bMove, int32_t nStart) {
CFX_FloatRect 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(CFX_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(
CFX_FloatRect(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,
CFX_Matrix* pUser2Device) {
pDevice->SaveState();
CFX_FloatRect rcClient = GetClientRect();
CFX_FloatRect rcTemp = rcClient;
pUser2Device->TransformRect(rcTemp);
pDevice->SetClip_Rect(FX_RECT((int32_t)rcTemp.left, (int32_t)rcTemp.bottom,
(int32_t)rcTemp.right, (int32_t)rcTemp.top));
for (int32_t i = 0, sz = m_aChildren.GetSize(); i < sz; i++) {
if (CPWL_Wnd* pChild = m_aChildren.GetAt(i)) {
CFX_FloatRect rcChild = pChild->ChildToParent(pChild->GetWindowRect());
if (!(rcChild.top < rcClient.bottom || rcChild.bottom > rcClient.top)) {
CFX_Matrix mt = pChild->GetChildMatrix();
if (mt.IsIdentity()) {
pChild->DrawAppearance(pDevice, pUser2Device);
} else {
mt.Concat(*pUser2Device);
pChild->DrawAppearance(pDevice, &mt);
}
}
}
}
pDevice->RestoreState(false);
}
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;
}
CFX_FloatPoint CPWL_ListCtrl::InToOut(const CFX_FloatPoint& point) const {
CFX_FloatRect rcClient = GetClientRect();
return CFX_FloatPoint(point.x + rcClient.left - m_ptScroll.x,
point.y + rcClient.top - m_ptScroll.y);
}
CFX_FloatPoint CPWL_ListCtrl::OutToIn(const CFX_FloatPoint& point) const {
CFX_FloatRect rcClient = GetClientRect();
return CFX_FloatPoint(point.x - rcClient.left + m_ptScroll.x,
point.y - rcClient.top + m_ptScroll.y);
}
CFX_FloatRect CPWL_ListCtrl::InToOut(const CFX_FloatRect& rect) const {
CFX_FloatRect rcClient = GetClientRect();
return CFX_FloatRect(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);
}
CFX_FloatRect CPWL_ListCtrl::OutToIn(const CFX_FloatRect& rect) const {
CFX_FloatRect rcClient = GetClientRect();
return CFX_FloatRect(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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