/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <vcl/filter/PngImageWriter.hxx>
#include <vcl/toolkit/treelistentry.hxx>
#include <vcl/toolkit/viewdataentry.hxx>
#include <iconview.hxx>
#include "iconviewimpl.hxx"
#include <vcl/accessiblefactory.hxx>
#include <vcl/uitest/uiobject.hxx>
#include <tools/json_writer.hxx>
#include <vcl/toolkit/svlbitm.hxx>
#include <tools/stream.hxx>
#include <vcl/cvtgrf.hxx>
#include <comphelper/base64.hxx>
#include <comphelper/propertyvalue.hxx>
namespace
{
const int separatorHeight = 10;
const int nSpacing = 5; // 5 pixels from top, from bottom, between icon and label
}
IconView::IconView(vcl::Window* pParent, WinBits nBits)
: SvTreeListBox(pParent, nBits)
{
nColumns = 1;
mbCenterAndClipText = true;
SetEntryWidth(100);
pImpl.reset(new IconViewImpl(this, GetModel(), GetStyle()));
}
Size IconView::GetEntrySize(const SvTreeListEntry& entry) const
{
if (entry.GetFlags() & SvTLEntryFlags::IS_SEPARATOR)
return { GetEntryWidth() * GetColumnsCount(), separatorHeight };
return { GetEntryWidth(), GetEntryHeight() };
}
void IconView::CalcEntryHeight(SvTreeListEntry const* pEntry)
{
int nHeight = nSpacing * 2;
SvViewDataEntry* pViewData = GetViewDataEntry(pEntry);
const size_t nCount = pEntry->ItemCount();
bool bHasIcon = false;
for (size_t nCur = 0; nCur < nCount; ++nCur)
{
nHeight += SvLBoxItem::GetHeight(pViewData, nCur);
if (!bHasIcon && pEntry->GetItem(nCur).GetType() == SvLBoxItemType::ContextBmp)
bHasIcon = true;
}
if (bHasIcon && nCount > 1)
nHeight += nSpacing; // between icon and label
if (nHeight > nEntryHeight)
{
nEntryHeight = nHeight;
Control::SetFont(GetFont());
pImpl->SetEntryHeight();
}
}
void IconView::Resize()
{
Size aBoxSize = Control::GetOutputSizePixel();
if (!aBoxSize.Width())
return;
nColumns = nEntryWidth ? aBoxSize.Width() / nEntryWidth : 1;
SvTreeListBox::Resize();
}
tools::Rectangle IconView::GetFocusRect(const SvTreeListEntry* pEntry, tools::Long)
{
return { GetEntryPosition(pEntry), GetEntrySize(*pEntry) };
}
void IconView::PaintEntry(SvTreeListEntry& rEntry, tools::Long nX, tools::Long nY,
vcl::RenderContext& rRenderContext)
{
pImpl->UpdateContextBmpWidthMax(&rEntry);
const Size entrySize = GetEntrySize(rEntry);
short nTempEntryHeight = entrySize.Height();
short nTempEntryWidth = entrySize.Width();
Point aEntryPos(nX, nY);
const Color aBackupTextColor(rRenderContext.GetTextColor());
const vcl::Font aBackupFont(rRenderContext.GetFont());
const Color aBackupColor = rRenderContext.GetFillColor();
const StyleSettings& rSettings = rRenderContext.GetSettings().GetStyleSettings();
const Size aOutputSize = GetOutputSizePixel();
if (aOutputSize.getHeight() < nTempEntryHeight)
nTempEntryHeight = aOutputSize.getHeight();
const SvViewDataEntry* pViewDataEntry = GetViewDataEntry(&rEntry);
bool bCurFontIsSel = false;
if (pViewDataEntry->IsHighlighted())
{
vcl::Font aHighlightFont(rRenderContext.GetFont());
const Color aHighlightTextColor(rSettings.GetHighlightTextColor());
aHighlightFont.SetColor(aHighlightTextColor);
// set font color to highlight
rRenderContext.SetTextColor(aHighlightTextColor);
rRenderContext.SetFont(aHighlightFont);
bCurFontIsSel = true;
}
bool bFillColorSet = false;
// draw background
if (!(nTreeFlags & SvTreeFlags::USESEL))
{
// set background pattern/color
Wallpaper aWallpaper = rRenderContext.GetBackground();
if (pViewDataEntry->IsHighlighted())
{
Color aNewWallColor = rSettings.GetHighlightColor();
// if the face color is bright then the deactivate color is also bright
// -> so you can't see any deactivate selection
const WinBits nWindowStyle = GetStyle();
const bool bHideSelection = (nWindowStyle & WB_HIDESELECTION) != 0 && !HasFocus();
if (bHideSelection && !rSettings.GetFaceColor().IsBright()
&& aWallpaper.GetColor().IsBright() != rSettings.GetDeactiveColor().IsBright())
{
aNewWallColor = rSettings.GetDeactiveColor();
}
aWallpaper.SetColor(aNewWallColor);
}
Color aBackgroundColor = aWallpaper.GetColor();
if (aBackgroundColor != COL_TRANSPARENT)
{
rRenderContext.SetFillColor(aBackgroundColor);
bFillColorSet = true;
// this case may occur for smaller horizontal resizes
if (nTempEntryWidth > 1)
rRenderContext.DrawRect({ aEntryPos, Size(nTempEntryWidth, nTempEntryHeight) });
}
}
const size_t nItemCount = rEntry.ItemCount();
size_t nIconItem = nItemCount;
int nLabelHeight = 0;
std::vector<size_t> aTextItems;
for (size_t nCurItem = 0; nCurItem < nItemCount; ++nCurItem)
{
SvLBoxItem& rItem = rEntry.GetItem(nCurItem);
SvLBoxItemType nItemType = rItem.GetType();
if (nItemType == SvLBoxItemType::ContextBmp)
{
nIconItem = nCurItem;
continue;
}
aTextItems.push_back(nCurItem);
auto nItemHeight = SvLBoxItem::GetHeight(pViewDataEntry, nCurItem);
nLabelHeight += nItemHeight;
}
int nLabelYPos = nY + nTempEntryHeight - nLabelHeight - nSpacing; // padding from bottom
for (auto nCurItem : aTextItems)
{
aEntryPos.setY(nLabelYPos);
auto nItemHeight = SvLBoxItem::GetHeight(pViewDataEntry, nCurItem);
nLabelYPos += nItemHeight;
rEntry.GetItem(nCurItem).Paint(aEntryPos, *this, rRenderContext, pViewDataEntry, rEntry);
}
if (bFillColorSet)
rRenderContext.SetFillColor(aBackupColor);
// draw icon
if (nIconItem < nItemCount)
{
SvLBoxItem& rItem = rEntry.GetItem(nIconItem);
auto nItemWidth = rItem.GetWidth(this, pViewDataEntry, nIconItem);
auto nItemHeight = SvLBoxItem::GetHeight(pViewDataEntry, nIconItem);
aEntryPos.setY(nY);
// center horizontally
aEntryPos.AdjustX((nTempEntryWidth - nItemWidth) / 2);
// center vertically
int nImageAreaHeight = nTempEntryHeight - nSpacing * 2; // spacings from top, from bottom
if (nLabelHeight > 0)
{
nImageAreaHeight -= nLabelHeight + nSpacing; // spacing between icon and label
}
aEntryPos.AdjustY((nImageAreaHeight - nItemHeight) / 2 + nSpacing);
rItem.Paint(aEntryPos, *this, rRenderContext, pViewDataEntry, rEntry);
}
if (bCurFontIsSel)
{
rRenderContext.SetTextColor(aBackupTextColor);
rRenderContext.SetFont(aBackupFont);
}
}
css::uno::Reference<css::accessibility::XAccessible> IconView::CreateAccessible()
{
if (vcl::Window* pParent = GetAccessibleParentWindow())
{
if (auto xAccParent = pParent->GetAccessible())
{
// need to be done here to get the vclxwindow later on in the accessible
css::uno::Reference<css::awt::XVclWindowPeer> xHoldAlive(GetComponentInterface());
return pImpl->m_aFactoryAccess.getFactory().createAccessibleIconView(*this, xAccParent);
}
}
return {};
}
OUString IconView::GetEntryAccessibleDescription(SvTreeListEntry* pEntry) const
{
assert(pEntry);
if (maEntryAccessibleDescriptionHdl.IsSet())
return maEntryAccessibleDescriptionHdl.Call(pEntry);
return SvTreeListBox::GetEntryAccessibleDescription(pEntry);
}
FactoryFunction IconView::GetUITestFactory() const { return IconViewUIObject::create; }
static OString extractPngString(const SvLBoxContextBmp* pBmpItem)
{
BitmapEx aImage = pBmpItem->GetBitmap1().GetBitmapEx();
SvMemoryStream aOStm(65535, 65535);
// Use fastest compression "1"
css::uno::Sequence<css::beans::PropertyValue> aFilterData{
comphelper::makePropertyValue(u"Compression"_ustr, sal_Int32(1)),
};
vcl::PngImageWriter aPNGWriter(aOStm);
aPNGWriter.setParameters(aFilterData);
if (aPNGWriter.write(aImage))
{
css::uno::Sequence<sal_Int8> aSeq(static_cast<sal_Int8 const*>(aOStm.GetData()),
aOStm.Tell());
OStringBuffer aBuffer("data:image/png;base64,");
::comphelper::Base64::encode(aBuffer, aSeq);
return aBuffer.makeStringAndClear();
}
return ""_ostr;
}
OUString IconView::renderEntry(int pos, int /*dpix*/, int /*dpiy*/) const
{
// TODO: support various DPI
SvTreeListEntry* pEntry = GetEntry(pos);
if (!pEntry)
return "";
OUString sResult;
const bool bHandled
= maDumpImageHdl.IsSet() && maDumpImageHdl.Call(encoded_image_query(sResult, pEntry));
if (!bHandled)
{
if (const SvLBoxItem* pIt = pEntry->GetFirstItem(SvLBoxItemType::ContextBmp))
{
const SvLBoxContextBmp* pBmpItem = static_cast<const SvLBoxContextBmp*>(pIt);
if (pBmpItem)
return OStringToOUString(extractPngString(pBmpItem), RTL_TEXTENCODING_ASCII_US);
}
}
return sResult;
}
void IconView::DumpEntryAndSiblings(tools::JsonWriter& rJsonWriter, SvTreeListEntry* pEntry)
{
while (pEntry)
{
auto aNode = rJsonWriter.startStruct();
// simple listbox value
const SvLBoxItem* pIt = pEntry->GetFirstItem(SvLBoxItemType::String);
if (pIt)
rJsonWriter.put("text", static_cast<const SvLBoxString*>(pIt)->GetText());
pIt = pEntry->GetFirstItem(SvLBoxItemType::ContextBmp);
if (pIt)
{
const SvLBoxContextBmp* pBmpItem = static_cast<const SvLBoxContextBmp*>(pIt);
if (pBmpItem)
rJsonWriter.put("ondemand", true);
}
if (const OUString tooltip = GetEntryTooltip(pEntry); !tooltip.isEmpty())
rJsonWriter.put("tooltip", tooltip);
if (IsSelected(pEntry))
rJsonWriter.put("selected", true);
if (pEntry->GetFlags() & SvTLEntryFlags::IS_SEPARATOR)
rJsonWriter.put("separator", true);
rJsonWriter.put("row", GetModel()->GetAbsPos(pEntry));
pEntry = pEntry->NextSibling();
}
}
void IconView::DumpAsPropertyTree(tools::JsonWriter& rJsonWriter)
{
SvTreeListBox::DumpAsPropertyTree(rJsonWriter);
rJsonWriter.put("type", "iconview");
rJsonWriter.put("singleclickactivate", GetActivateOnSingleClick());
rJsonWriter.put("textWithIconEnabled", IsTextColumnEnabled());
auto aNode = rJsonWriter.startArray("entries");
DumpEntryAndSiblings(rJsonWriter, First());
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
↑ V547 Expression 'pBmpItem' is always true.
↑ V547 Expression 'pBmpItem' is always true.