starmath/inc/utility.hxx

   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 #pragma once
  21
  22 #include <sal/config.h>
  23 #include "smdllapi.hxx"
  24
  25 #include <o3tl/unit_conversion.hxx>
  26 #include <sal/log.hxx>
  27 #include <vcl/font.hxx>
  28 #include <vcl/weld.hxx>
  29 #include <tools/fract.hxx>
  30 #include <tools/mapunit.hxx>
  31 #include <deque>
  32
  33
  34 class SmViewShell;
  35 SmViewShell * SmGetActiveView();
  36
  37
  38 // SmFace
  39
  40
  41 bool    IsItalic( const vcl::Font &rFont );
  42 bool    IsBold( const vcl::Font &rFont );
  43
  44 class SM_DLLPUBLIC SmFace final : public vcl::Font
  45 {
  46     tools::Long    nBorderWidth;
  47
  48     void    Impl_Init();
  49
  50 public:
  51     SmFace() :
  52         Font(), nBorderWidth(-1) { Impl_Init(); }
  53     explicit SmFace(const Font& rFont) :
  54         Font(rFont), nBorderWidth(-1) { Impl_Init(); }
  55     SmFace(const OUString& rName, const Size& rSize) :
  56         Font(rName, rSize), nBorderWidth(-1) { Impl_Init(); }
  57
  58     SmFace(const SmFace &rFace) :
  59         Font(rFace), nBorderWidth(-1) { Impl_Init(); }
  60
  61     // overloaded version in order to supply a min value
  62     // for font size (height). (Also used in ctor's to do so.)
  63     void    SetSize(const Size& rSize);
  64
  65     void    SetBorderWidth(tools::Long nWidth)     { nBorderWidth = nWidth; }
  66     tools::Long    GetBorderWidth() const;
  67     tools::Long    GetDefaultBorderWidth() const   { return GetFontSize().Height() / 20 ; }
  68     void    FreezeBorderWidth()     { nBorderWidth = GetDefaultBorderWidth(); }
  69
  70     SmFace & operator = (const SmFace &rFace);
  71 };
  72
  73 SmFace & operator *= (SmFace &rFace, const Fraction &rFrac);
  74
  75
  76 // SmFontPickList
  77
  78
  79 class SmFontDialog;
  80
  81 class SmFontPickList
  82 {
  83 protected:
  84     sal_uInt16 nMaxItems;
  85     std::deque<vcl::Font> aFontVec;
  86
  87 public:
  88     explicit SmFontPickList(sal_uInt16 nMax = 5) : nMaxItems(nMax) {}
  89     virtual ~SmFontPickList() { Clear(); }
  90
  91     virtual void    Insert(const vcl::Font &rFont);
  92
  93     void            Clear();
  94     vcl::Font       Get(sal_uInt16 nPos = 0) const;
  95
  96     SmFontPickList& operator = (const SmFontPickList& rList);
  97
  98     void            ReadFrom(const SmFontDialog& rDialog);
  99     void            WriteTo(SmFontDialog& rDialog) const;
 100 };
 101
 102
 103 //  SmFontPickListBox
 104
 105
 106 class SmFontPickListBox final : public SmFontPickList
 107 {
 108 private:
 109     std::unique_ptr<weld::ComboBox> m_xWidget;
 110
 111     DECL_LINK(SelectHdl, weld::ComboBox&, void);
 112
 113 public:
 114     SmFontPickListBox(std::unique_ptr<weld::ComboBox> pWidget);
 115     SmFontPickListBox& operator = (const SmFontPickList& rList);
 116     virtual void    Insert(const vcl::Font &rFont) override;
 117 };
 118
 119 // Math used to use 100ths of MM by default, but now uses twips
 120 // which seems to improve (subpixel) positioning.
 121 inline MapUnit SmMapUnit()
 122 {
 123     return MapUnit::MapTwip;
 124 }
 125 inline o3tl::Length SmO3tlLengthUnit()
 126 {
 127     return o3tl::Length::twip;
 128 }
 129
 130 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */