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annotate anagram/vaclgui/dview.hpp @ 0:13d2b8934445

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Import AnaGram (near-)release tree into Mercurial.
author David A. Holland
date Sat, 22 Dec 2007 17:52:45 -0500
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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 * dview.hpp
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7 */
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8
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9 #ifndef DVIEW_HPP
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10 #define DVIEW_HPP
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11
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12 #include <icanvas.hpp>
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13 #include <iclipbrd.hpp>
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14 #include <icmdevt.hpp>
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15 #include <icmdhdr.hpp>
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16 //#include <icoordsy.hpp>
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17 //#include <iexcbase.hpp>
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18 //#include <ifont.hpp>
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19 #include <ikeyevt.hpp>
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20 #include <ikeyhdr.hpp>
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21 #include <imenuevt.hpp>
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22 #include <imenuhdr.hpp>
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23 #include <imoushdr.hpp>
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24 #include <imousevt.hpp>
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25 #include <ipainevt.hpp>
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26 #include <ipainhdr.hpp>
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27 #include <ipopmenu.hpp>
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28 //#include <irefcnt.hpp>
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29 #include <iscroll.hpp>
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30 #include <iscrlevt.hpp>
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31 #include <iscrlhdr.hpp>
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32 //#include <isizeevt.hpp>
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33 #include <isizehdr.hpp>
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34 //#include <istattxt.hpp>
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35 #include <itimer.hpp>
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36 //#include <ititle.hpp>
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37
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38 class AgFrame; // from frame.hpp
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39 #include "agstring.h"
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40 #include "agview.hpp"
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41 #include "search.h"
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42
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43
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44 class AgDataView
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45 : public ICanvas
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46 , public ICommandHandler
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47 , public IKeyboardHandler
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48 , public IMenuHandler
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49 , public IMouseHandler
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50 , public IPaintHandler
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51 , public IResizeHandler
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52 , public IScrollHandler
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53 , public AgHelpHandler
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54 , public AgFocusHandler
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55 {
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56 public:
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57
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58 static const int defaultWindowHeight;
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59
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60 class MouseDragTimer : public ITimerFn {
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61 private:
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62 AgDataView *window;
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63 int mouseLine;
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64 int topLine;
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65 public:
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66 MouseDragTimer(AgDataView *, int, int);
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67 void timerExpired(unsigned long timerId);
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68 };
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69
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70 // Constructor
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71 AgDataView(IWindow *, WindowData *);
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72 AgDataView(IWindow *ownerWindow_);
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73 AgDataView &init(WindowData *);
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74 AgDataView &reset();
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75
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76 // Destructor
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77 ~AgDataView();
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78
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79 void disconnect();
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80
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81 AgAction enterAction;
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82 AgDataView &setEnterAction(AgAction action) {
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83 enterAction = action;
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84 return *this;
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85 }
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86 //virtual void onEnter() {
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87 // enterAction.performDeferred();
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88 //}
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89
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90 AgAction selectAction;
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91 AgDataView &setSelectAction(AgAction action) {
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92 selectAction = action;
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93 return *this;
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94 }
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95 //virtual void onSelect() {
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96 // selectAction.performDeferred();
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97 //}
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98
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99 int getCursorLine();
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100 AgDataView &setCursorLine(int);
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101 AgDataView &synchCursor(int);
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102 void mouseDragTimerInterrupt(int &topLine, int mouseLine);
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103
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104 ISize suggestSize();
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105
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106 AgDataView &setLayoutDistorted(unsigned long, unsigned long);
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107
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108 AgDataView &layout();
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109 int tableWidth;
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110 int columnHeadWidth;
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111 AgDataView &adjustMaxWidth(AgString);
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112 AgDataView &setColumnTitles(AgString title);
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113 AgColumnHead columnHeadTitle;
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114 AgStaticText dataArea;
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115
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116 int lineHeight() const {
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117 return font().externalLeading() + font().maxSize().height();
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118 }
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119 int charWidth() const { return font().maxSize().width(); }
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120 int avgCharWidth() const { return font().avgCharWidth(); }
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121 int maxDescender() const { return font().maxDescender(); }
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122
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123 AgDataView &repaintLine(int);
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124
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125 SearchProcess searchProcess;
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126 Boolean findNext(AgString);
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127 Boolean findPrev(AgString);
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128 AgDataView &copyTo(IClipboard &c);
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129 virtual void showHelp();
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130
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131 protected:
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132
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133 // Layout functions
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134 AgDataView &doLayout();
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135 Boolean windowResize(IResizeEvent &);
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136 ISize calcMinimumSize() const;
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137 AgDataView &repositionWindow();
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138 int findMaxWidth(void);
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139
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140
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141 // Handler functions
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142
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143 // Command Handler
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144 Boolean command(ICommandEvent &event);
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145
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146 // Keyboard handler
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147 Boolean virtualKeyPress(IKeyboardEvent &);
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148 Boolean key(IKeyboardEvent &);
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149
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150 // Menu handler
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151 Boolean makePopUpMenu(IMenuEvent &event);
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152
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153 IPopUpMenu popUpMenu;
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154 AgArray<AgMenuItem> auxMenu;
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155 Boolean menuEnded(IMenuEvent &);
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156 AgDataView &initPopUp();
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157 AgDataView &validatePopUp();
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158
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159 virtual Boolean showHelp(IEvent &event);
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160
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161 virtual ColorSpec *getLineColor(int);
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162
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163 // Mouse handler
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164 Boolean mouseClicked(IMouseClickEvent &event);
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165 Boolean mouseMoved(IMouseEvent &event);
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166 void dragMouse(int topLine, int mouseLine);
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167
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168 Boolean gotFocus(IEvent &);
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169 Boolean lostFocus(IEvent &);
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170
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171 Boolean mouseDown;
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172 int mouseDownCursorLine;
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173 ITimer mouseTimer;
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174
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175
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176 // Paint handler
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177 Boolean paintWindow(IPaintEvent &);
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178
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179 // Scroll handler
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180 Boolean lineDown(IScrollEvent &);
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181 Boolean lineLeft(IScrollEvent &);
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182 Boolean lineRight(IScrollEvent &);
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183 Boolean lineUp(IScrollEvent &);
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184 Boolean pageDown(IScrollEvent &);
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185 Boolean pageLeft(IScrollEvent &);
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186 Boolean pageRight(IScrollEvent &);
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187 Boolean pageUp(IScrollEvent &);
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188 Boolean scrollBoxTrack(IScrollEvent &);
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189 Boolean scrollBoxTrackEnd(IScrollEvent &event);
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190 /*
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191 virtual Boolean scrollBoxTrackEnd(IScrollEvent &event) {
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192 return scrollBoxTrack(event);
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193 }
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194 */
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195
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196 public:
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197 // child windows
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198 IScrollBar horizontalScrollBar;
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199 IScrollBar verticalScrollBar;
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200
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201 AgDataView &setFrame(AgFrame *f) {frameWindow = f; return *this;}
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202
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203 // window parameters
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204 AgString copyTitle;
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205 int windowId;
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206 IWindow *ownerWindow;
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207 AgFrame *frameWindow;
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208 WindowData *windowData;
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209 ColorSpec *color;
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210 ColorSpec *cursorColor;
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211 AgNotificationAction<AgDataView> dataColorChange;
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212 AgNotificationAction<AgDataView> fontChange;
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213 void onColorChange() { refresh(); }
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214 void onFontChange();
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215
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216 int *tabArray;
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217 int popUpInitialized;
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218 char *helpTopic;
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219
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220 // layout state
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221 Boolean vsbShowing;
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222 Boolean hsbShowing;
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223 int columnHeadsPresent;
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224 int tableHeight;
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225 int verticalLineCount;
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226
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227 // window state
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228 int cursorLine;
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229 int prevHorizontal;
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230 int prevVertical;
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231 int rightButtonDown;
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232
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233 enum ButtonState { buttonIdle, buttonDown, waitingForClick };
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234 ButtonState rightButtonState;
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235
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236 private:
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237 int layoutActive;
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238 int layoutComplete;
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239 };
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240
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241 inline int AgDataView::getCursorLine() { return cursorLine; }
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242
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243 void logFont(IFont activeFont);
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244 void logFont(IFont activeFont, char *p);
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245
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246
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247 #endif /* DVIEW_HPP */