annotate lwlib/xlwscrollbarP.h @ 5892:053ef01b71a8

Import the #'clear-string API from GNU, use it in tls.c src/ChangeLog addition: 2015-04-18 Aidan Kehoe <kehoea@parhasard.net> * sequence.c (Fclear_string): New, API from GNU. Zero a string's contents, making sure the text is not kept around even when the string's data is reallocated because of a changed character length. * sequence.c (syms_of_sequence): Make it available to Lisp. * lisp.h: Make it available to C code. * tls.c (nss_pk11_password): Use it. * tls.c (gnutls_pk11_password): Use it. * tls.c (openssl_password): Use it. tests/ChangeLog addition: 2015-04-18 Aidan Kehoe <kehoea@parhasard.net> * automated/lisp-tests.el: Test #'clear-string, just added. Unfortunately there's no way to be certain from Lisp that the old password data has been erased after realloc; it may be worth adding a test to tests.c, but *we'll be reading memory we shouldn't be*, so that gives me pause.
author Aidan Kehoe <kehoea@parhasard.net>
date Sat, 18 Apr 2015 23:00:14 +0100
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children
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1 /* Implements a lightweight scrollbar widget.
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2 Copyright (C) 1992, 1993, 1994 Lucid, Inc.
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3
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4 This file is part of the Lucid Widget Library.
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5
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6 The Lucid Widget Library is free software: you can redistribute it
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7 and/or modify it under the terms of the GNU General Public License as
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8 published by the Free Software Foundation, either version 3 of the
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9 License, or (at your option) any later version.
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10
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11 The Lucid Widget Library is distributed in the hope that it will be
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12 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with the Lucid Widget Library. If not, see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 /* Created by Douglas Keller <dkeller@vnet.ibm.com> */
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21
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22 #ifndef _XlwScrollBarP_h
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23 #define _XlwScrollBarP_h
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24
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25
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26 /*
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27 ** Widget class
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28 */
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29 typedef struct
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30 {
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31 int dummy_field; /* keep compiler happy */
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32 } XlwScrollBarClassPart;
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33
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34 typedef struct _XlwScrollbarClassRec
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35 {
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36 CoreClassPart core_class;
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37 XlwScrollBarClassPart scrollbar_class;
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38 } XlwScrollBarClassRec;
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39
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40 enum XlwScrollbarArm
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41 {
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42 ARM_NONE,
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43 ARM_SLIDER,
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44 ARM_UP,
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45 ARM_DOWN,
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46 ARM_PAGEUP,
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47 ARM_PAGEDOWN
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48 };
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49
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50 enum XlwScrollbarForcedScroll
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51 {
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52 FORCED_SCROLL_NONE,
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53 FORCED_SCROLL_DOWNRIGHT,
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54 FORCED_SCROLL_UPLEFT
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55 };
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56
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57 /*
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58 ** Widget instance
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59 */
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60 typedef struct
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61 {
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62 /* resources */
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63 XtCallbackList valueChangedCBL;
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64 XtCallbackList incrementCBL;
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65 XtCallbackList decrementCBL;
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66 XtCallbackList pageIncrementCBL;
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67 XtCallbackList pageDecrementCBL;
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68 XtCallbackList toTopCBL;
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69 XtCallbackList toBottomCBL;
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70 XtCallbackList dragCBL;
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71
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72 Pixel foreground;
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73
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74 Pixel topShadowColor;
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75 Pixel bottomShadowColor;
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76
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77 Pixel troughColor;
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78
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79 Pixel armColor;
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80 Pixel armTopShadowColor;
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81 Pixel armBottomShadowColor;
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82
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83 Pixmap topShadowPixmap;
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84 Pixmap bottomShadowPixmap;
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85
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86 int shadowThickness;
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87
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88 Boolean showArrows;
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89
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90 int minimum;
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91 int maximum;
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92 int sliderSize;
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93 int value;
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94 int pageIncrement;
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95 int increment;
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96
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97 int initialDelay;
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98 int repeatDelay;
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99
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100 unsigned char orientation;
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101
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102 char *sliderStyle;
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103 char *knobStyle;
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104 char *arrowPosition;
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105
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106 /* private */
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107 Pixmap grayPixmap;
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108
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109 GC backgroundGC;
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110 GC topShadowGC;
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111 GC bottomShadowGC;
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112
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113 int above, ss, below;
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114 int lastY;
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115
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116 enum XlwScrollbarArm armed;
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117
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118 enum XlwScrollbarForcedScroll forced_scroll;
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119
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120 int savedValue;
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121
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122 Boolean fullRedrawNext;
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123
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124 Boolean timerActive;
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125 XtIntervalId timerId;
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126
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127 } XlwScrollBarPart;
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128
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129 typedef struct _XlwScrollBarRec
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130 {
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131 CorePart core;
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132 XlwScrollBarPart sb;
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133 } XlwScrollBarRec;
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134
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135 #endif /* _XlwScrollBarP_h */