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Diffstat (limited to 'starmath/source/utility.cxx')
| -rw-r--r-- | starmath/source/utility.cxx | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/starmath/source/utility.cxx b/starmath/source/utility.cxx new file mode 100644 index 0000000000..4a9225f6b3 --- /dev/null +++ b/starmath/source/utility.cxx @@ -0,0 +1,245 @@ +/* -*- 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 <strings.hrc> +#include <smmod.hxx> +#include <utility.hxx> +#include <dialog.hxx> +#include <view.hxx> + +#include <comphelper/lok.hxx> +#include <sfx2/lokcomponenthelpers.hxx> + +// return pointer to active SmViewShell, if this is not possible +// return 0 instead. +//!! Since this method is based on the current focus it is somewhat +//!! unreliable and may return unexpected 0 pointers! +SmViewShell * SmGetActiveView() +{ + SfxViewShell *pView = SfxViewShell::Current(); + SmViewShell* pSmView = dynamic_cast<SmViewShell*>(pView); + if (!pSmView && comphelper::LibreOfficeKit::isActive()) + { + auto* pWindow = static_cast<SmGraphicWindow*>(LokStarMathHelper(pView).GetGraphicWindow()); + if (pWindow) + pSmView = &pWindow->GetGraphicWidget().GetView(); + } + return pSmView; +} + + +/**************************************************************************/ + +void SmFontPickList::Clear() +{ + aFontVec.clear(); +} + +SmFontPickList& SmFontPickList::operator = (const SmFontPickList& rList) +{ + Clear(); + nMaxItems = rList.nMaxItems; + aFontVec = rList.aFontVec; + + return *this; +} + +vcl::Font SmFontPickList::Get(sal_uInt16 nPos) const +{ + return nPos < aFontVec.size() ? aFontVec[nPos] : vcl::Font(); +} + +namespace { + +bool lcl_CompareItem(const vcl::Font & rFirstFont, const vcl::Font & rSecondFont) +{ + return rFirstFont.GetFamilyName() == rSecondFont.GetFamilyName() && + rFirstFont.GetFamilyType() == rSecondFont.GetFamilyType() && + rFirstFont.GetCharSet() == rSecondFont.GetCharSet() && + rFirstFont.GetWeight() == rSecondFont.GetWeight() && + rFirstFont.GetItalic() == rSecondFont.GetItalic(); +} + +OUString lcl_GetStringItem(const vcl::Font &rFont) +{ + OUStringBuffer aString(rFont.GetFamilyName()); + + if (IsItalic( rFont )) + { + aString.append(", " + SmResId(RID_FONTITALIC)); + } + if (IsBold( rFont )) + { + aString.append(", " + SmResId(RID_FONTBOLD)); + } + + return aString.makeStringAndClear(); +} + +} + +void SmFontPickList::Insert(const vcl::Font &rFont) +{ + for (size_t nPos = 0; nPos < aFontVec.size(); nPos++) + if (lcl_CompareItem( aFontVec[nPos], rFont)) + { + aFontVec.erase( aFontVec.begin() + nPos ); + break; + } + + aFontVec.push_front( rFont ); + + if (aFontVec.size() > nMaxItems) + { + aFontVec.pop_back(); + } +} + +void SmFontPickList::ReadFrom(const SmFontDialog& rDialog) +{ + Insert(rDialog.GetFont()); +} + +void SmFontPickList::WriteTo(SmFontDialog& rDialog) const +{ + rDialog.SetFont(Get()); +} + + +/**************************************************************************/ + +SmFontPickListBox::SmFontPickListBox(std::unique_ptr<weld::ComboBox> pWidget) + : SmFontPickList(4) + , m_xWidget(std::move(pWidget)) +{ + m_xWidget->connect_changed(LINK(this, SmFontPickListBox, SelectHdl)); +} + +IMPL_LINK_NOARG(SmFontPickListBox, SelectHdl, weld::ComboBox&, void) +{ + const int nPos = m_xWidget->get_active(); + if (nPos != 0) + { + SmFontPickList::Insert(Get(nPos)); + OUString aString = m_xWidget->get_text(nPos); + m_xWidget->remove(nPos); + m_xWidget->insert_text(0, aString); + } + + m_xWidget->set_active(0); +} + +SmFontPickListBox& SmFontPickListBox::operator=(const SmFontPickList& rList) +{ + *static_cast<SmFontPickList *>(this) = rList; + + for (decltype(aFontVec)::size_type nPos = 0; nPos < aFontVec.size(); nPos++) + m_xWidget->insert_text(nPos, lcl_GetStringItem(aFontVec[nPos])); + + if (!aFontVec.empty()) + m_xWidget->set_active_text(lcl_GetStringItem(aFontVec.front())); + + return *this; +} + +void SmFontPickListBox::Insert(const vcl::Font &rFont) +{ + SmFontPickList::Insert(rFont); + + OUString aEntry(lcl_GetStringItem(aFontVec.front())); + int nPos = m_xWidget->find_text(aEntry); + if (nPos != -1) + m_xWidget->remove(nPos); + m_xWidget->insert_text(0, aEntry); + m_xWidget->set_active(0); + + while (m_xWidget->get_count() > nMaxItems) + m_xWidget->remove(m_xWidget->get_count() - 1); +} + +bool IsItalic( const vcl::Font &rFont ) +{ + FontItalic eItalic = rFont.GetItalic(); + // the code below leaves only _NONE and _DONTKNOW as not italic + return eItalic == ITALIC_OBLIQUE || eItalic == ITALIC_NORMAL; +} + + +bool IsBold( const vcl::Font &rFont ) +{ + FontWeight eWeight = rFont.GetWeight(); + return eWeight > WEIGHT_NORMAL; +} + + +void SmFace::Impl_Init() +{ + SetSize( GetFontSize() ); + SetTransparent( true ); + SetAlignment( ALIGN_BASELINE ); + SetColor( COL_AUTO ); +} + +void SmFace::SetSize(const Size& rSize) +{ + Size aSize (rSize); + + // check the requested size against minimum value + const int nMinVal = o3tl::convert(2, o3tl::Length::pt, SmO3tlLengthUnit()); + + if (aSize.Height() < nMinVal) + aSize.setHeight( nMinVal ); + + //! we don't force a maximum value here because this may prevent eg the + //! parentheses in "left ( ... right )" from matching up with large + //! bodies (eg stack{...} with many entries). + //! Of course this is holds only if characters are used and not polygons. + + Font::SetFontSize(aSize); +} + + +tools::Long SmFace::GetBorderWidth() const +{ + if (nBorderWidth < 0) + return GetDefaultBorderWidth(); + else + return nBorderWidth; +} + +SmFace & SmFace::operator = (const SmFace &rFace) +{ + Font::operator = (rFace); + nBorderWidth = -1; + return *this; +} + + +SmFace & operator *= (SmFace &rFace, const Fraction &rFrac) + // scales the width and height of 'rFace' by 'rFrac' and returns a + // reference to 'rFace'. + // It's main use is to make scaling fonts look easier. +{ const Size &rFaceSize = rFace.GetFontSize(); + + rFace.SetSize(Size(tools::Long(rFaceSize.Width() * rFrac), + tools::Long(rFaceSize.Height() * rFrac))); + return rFace; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |