annotate anagram/vaclgui/digset.hpp @ 21:1c9dac05d040

Add lint-style FALLTHROUGH annotations to fallthrough cases. (in the parse engine and thus the output code) Document this, because the old output causes warnings with gcc10.
author David A. Holland
date Mon, 13 Jun 2022 00:04:38 -0400
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1 /*
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2 * AnaGram, A System for Syntax Directed Programming
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3 * Copyright 1997-2002 Parsifal Software. All Rights Reserved.
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4 * See the file COPYING for license and usage terms.
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5 *
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6 * digset.hpp
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7 */
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8
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9 #ifndef DIGSET_HPP
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10 #define DIGSET_HPP
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11
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12 #include <icolor.hpp>
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13 #include <ifont.hpp>
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14 #include <ipainevt.hpp>
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15 //#include <ipoint.hpp>
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16 #include <irect.hpp>
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17
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18 #include "cint.h"
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19 #include "dspar.hpp"
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20
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21
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22 class DigSetter
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23 {
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24 public:
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25 struct Style {
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26 FontSpec &font;
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27 ColorSpec &color;
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28 Style()
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29 : color(ColorSpec::defaultSetting)
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30 , font(FontSpec::defaultSetting)
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31 {}
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32 Style(FontSpec &f, ColorSpec &color_)
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33 : font(f)
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34 , color(color_)
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35 {}
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36 int enWidth() {
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37 IFont &f = font;
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38 return f.avgCharWidth();
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39 }
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40 int height() {
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41 IFont &f = font;
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42 return f.maxSize().height();
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43 }
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44 int topToBaseline() {
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45 IFont &f = font;
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46 return f.maxAscender();
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47 }
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48 int descender() {
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49 IFont &f = font;
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50 return f.maxDescender();
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51 }
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52 };
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53
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54 struct Dig {
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55 char *text;
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56 int textLength;
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57 cint where;
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58 int width;
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59 int styleIndex;
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60 Dig() {}
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61 Dig(char *text_, const int length, const cint where_, const int index)
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62 : text(text_)
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63 , textLength(length)
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64 , where(where_)
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65 , styleIndex(index)
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66 , width(0)
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67 {}
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68 Dig(const Dig &dig)
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69 : text(dig.text)
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70 , textLength(dig.textLength)
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71 , where(dig.where)
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72 , styleIndex(dig.styleIndex)
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73 , width(dig.width)
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74 {}
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75 int operator < (const Dig &d) const { return where < d.where; }
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76 };
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77
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78 struct Hole {
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79 cint where;
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80 cint size;
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81 int styleIndex;
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82 Hole() {}
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83 Hole(cint where_, cint size_, int index)
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84 : where(where_)
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85 , size(size_)
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86 , styleIndex(index)
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87 {}
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88 Hole(IRectangle r, int index = 0)
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89 : where(r.minX(), r.minY())
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90 , size(r.size().width(), r.size().height())
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91 , styleIndex(index)
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92 {}
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93 int operator < (const Hole &d) const { return where < d.where; }
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94 };
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95
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96 protected:
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97 IWindow *window;
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98 IPaintEvent *event;
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99 Style *style;
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100 int currentStyleIndex;
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101 int windowHeight;
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102 IPresSpaceHandle presSpaceHandle;
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103
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104 public:
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105 DigSetter(IWindow *window_, Style *style_, int index = -1)
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106 : event(0)
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107 , window(window_)
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108 , style(style_)
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109 , currentStyleIndex(index)
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110 , windowHeight(0)
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111 {}
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112
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113 DigSetter &setEvent(IPaintEvent &e);
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114 DigSetter &closeEvent();
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115
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116 int top(Dig d) {
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117 return d.where.y - style[d.styleIndex].topToBaseline();
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118 }
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119 int bottom(Dig d) {
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120 return d.where.y + style[d.styleIndex].descender();
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121 }
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122
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123 DigSetter &measureDig(Dig &dig);
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124 DigSetter &setDig(const Dig &dig, int reverseVideo = 0);
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125 DigSetter &clear(const Hole &hole);
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126 DigSetter &reverse(const Hole &hole);
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127 DigSetter &clear(const IRectangle &r);
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128
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129 DigSetter &refresh(const Hole &hole);
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130 DigSetter &refresh(const Dig &dig);
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131
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132 Hole makeHole(const Dig &dig);
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133 };
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134
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135
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136 #endif /* DIGSET_HPP */