starmath/source/utility.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <vcl/builderfactory.hxx>
  21
  22 #include <strings.hrc>
  23
  24 #include <utility.hxx>
  25 #include <dialog.hxx>
  26 #include <view.hxx>
  27
  28
  29 // return pointer to active SmViewShell, if this is not possible
  30 // return 0 instead.
  31 //!! Since this method is based on the current focus it is somewhat
  32 //!! unreliable and may return unexpected 0 pointers!
  33 SmViewShell * SmGetActiveView()
  34 {
  35     SfxViewShell *pView = SfxViewShell::Current();
  36     return  dynamic_cast<SmViewShell*>( pView);
  37 }
  38
  39
  40 /**************************************************************************/
  41
  42 void SmFontPickList::Clear()
  43 {
  44     aFontVec.clear();
  45 }
  46
  47 SmFontPickList& SmFontPickList::operator = (const SmFontPickList& rList)
  48 {
  49     Clear();
  50     nMaxItems = rList.nMaxItems;
  51     for (const auto & nPos : rList.aFontVec)
  52         aFontVec.push_back( nPos );
  53
  54     return *this;
  55 }
  56
  57 vcl::Font SmFontPickList::Get(sal_uInt16 nPos) const
  58 {
  59     return nPos < aFontVec.size() ? aFontVec[nPos] : vcl::Font();
  60 }
  61
  62 namespace {
  63
  64 bool lcl_CompareItem(const vcl::Font & rFirstFont, const vcl::Font & rSecondFont)
  65 {
  66   return rFirstFont.GetFamilyName() == rSecondFont.GetFamilyName() &&
  67          rFirstFont.GetFamilyType() == rSecondFont.GetFamilyType() &&
  68          rFirstFont.GetCharSet()    == rSecondFont.GetCharSet()    &&
  69          rFirstFont.GetWeight()     == rSecondFont.GetWeight()     &&
  70          rFirstFont.GetItalic()     == rSecondFont.GetItalic();
  71 }
  72
  73 OUString lcl_GetStringItem(const vcl::Font &rFont)
  74 {
  75     OUStringBuffer aString(rFont.GetFamilyName());
  76
  77     if (IsItalic( rFont ))
  78     {
  79         aString.append(", ");
  80         aString.append(SmResId(RID_FONTITALIC));
  81     }
  82     if (IsBold( rFont ))
  83     {
  84         aString.append(", ");
  85         aString.append(SmResId(RID_FONTBOLD));
  86     }
  87
  88     return aString.makeStringAndClear();
  89 }
  90
  91 }
  92
  93 void SmFontPickList::Insert(const vcl::Font &rFont)
  94 {
  95     for (size_t nPos = 0; nPos < aFontVec.size(); nPos++)
  96         if (lcl_CompareItem( aFontVec[nPos], rFont))
  97         {
  98             aFontVec.erase( aFontVec.begin() + nPos );
  99             break;
 100         }
 101
 102     aFontVec.push_front( rFont );
 103
 104     if (aFontVec.size() > nMaxItems)
 105     {
 106         aFontVec.pop_back();
 107     }
 108 }
 109
 110 void SmFontPickList::ReadFrom(const SmFontDialog& rDialog)
 111 {
 112     Insert(rDialog.GetFont());
 113 }
 114
 115 void SmFontPickList::WriteTo(SmFontDialog& rDialog) const
 116 {
 117     rDialog.SetFont(Get());
 118 }
 119
 120
 121 /**************************************************************************/
 122
 123 SmFontPickListBox::SmFontPickListBox(weld::ComboBoxText* pWidget)
 124     : SmFontPickList(4)
 125     , m_xWidget(pWidget)
 126 {
 127     m_xWidget->connect_changed(LINK(this, SmFontPickListBox, SelectHdl));
 128 }
 129
 130 IMPL_LINK_NOARG(SmFontPickListBox, SelectHdl, weld::ComboBoxText&, void)
 131 {
 132     OUString aString;
 133
 134     const int nPos = m_xWidget->get_active();
 135     if (nPos != 0)
 136     {
 137         SmFontPickList::Insert(Get(nPos));
 138         aString = m_xWidget->get_text(nPos);
 139         m_xWidget->remove(nPos);
 140         m_xWidget->insert_text(0, aString);
 141     }
 142
 143     m_xWidget->set_active(0);
 144 }
 145
 146 SmFontPickListBox& SmFontPickListBox::operator=(const SmFontPickList& rList)
 147 {
 148     *static_cast<SmFontPickList *>(this) = rList;
 149
 150     for (decltype(aFontVec)::size_type nPos = 0; nPos < aFontVec.size(); nPos++)
 151         m_xWidget->insert_text(nPos, lcl_GetStringItem(aFontVec[nPos]));
 152
 153     if (!aFontVec.empty())
 154         m_xWidget->set_active_text(lcl_GetStringItem(aFontVec.front()));
 155
 156     return *this;
 157 }
 158
 159 void SmFontPickListBox::Insert(const vcl::Font &rFont)
 160 {
 161     SmFontPickList::Insert(rFont);
 162
 163     OUString aEntry(lcl_GetStringItem(aFontVec.front()));
 164     int nPos = m_xWidget->find_text(aEntry);
 165     if (nPos != -1)
 166         m_xWidget->remove(nPos);
 167     m_xWidget->insert_text(0, aEntry);
 168     m_xWidget->set_active(0);
 169
 170     while (m_xWidget->get_count() > nMaxItems)
 171         m_xWidget->remove(m_xWidget->get_count() - 1);
 172 }
 173
 174 bool IsItalic( const vcl::Font &rFont )
 175 {
 176     FontItalic eItalic = rFont.GetItalic();
 177     // the code below leaves only _NONE and _DONTKNOW as not italic
 178     return eItalic == ITALIC_OBLIQUE  ||  eItalic == ITALIC_NORMAL;
 179 }
 180
 181
 182 bool IsBold( const vcl::Font &rFont )
 183 {
 184     FontWeight eWeight = rFont.GetWeight();
 185     return eWeight != WEIGHT_DONTKNOW && eWeight > WEIGHT_NORMAL;
 186 }
 187
 188
 189 void SmFace::Impl_Init()
 190 {
 191     SetSize( GetFontSize() );
 192     SetTransparent( true );
 193     SetAlignment( ALIGN_BASELINE );
 194     SetColor( COL_AUTO );
 195 }
 196
 197 void SmFace::SetSize(const Size& rSize)
 198 {
 199     Size  aSize (rSize);
 200
 201     // check the requested size against minimum value
 202     static int const    nMinVal = SmPtsTo100th_mm(2);
 203
 204     if (aSize.Height() < nMinVal)
 205         aSize.setHeight( nMinVal );
 206
 207     //! we don't force a maximum value here because this may prevent eg the
 208     //! parentheses in "left ( ... right )" from matching up with large
 209     //! bodies (eg stack{...} with many entries).
 210     //! Of course this is holds only if characters are used and not polygons.
 211
 212     Font::SetFontSize(aSize);
 213 }
 214
 215
 216 long SmFace::GetBorderWidth() const
 217 {
 218     if (nBorderWidth < 0)
 219         return GetDefaultBorderWidth();
 220     else
 221         return nBorderWidth;
 222 }
 223
 224 SmFace & SmFace::operator = (const SmFace &rFace)
 225 {
 226     Font::operator = (rFace);
 227     nBorderWidth = -1;
 228     return *this;
 229 }
 230
 231
 232 SmFace & operator *= (SmFace &rFace, const Fraction &rFrac)
 233     // scales the width and height of 'rFace' by 'rFrac' and returns a
 234     // reference to 'rFace'.
 235     // It's main use is to make scaling fonts look easier.
 236 {   const Size &rFaceSize = rFace.GetFontSize();
 237
 238     rFace.SetSize(Size(long(rFaceSize.Width() * rFrac),
 239                        long(rFaceSize.Height() * rFrac)));
 240     return rFace;
 241 }
 242
 243 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */