1 |
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2 | /*
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3 | *@@sourcefile animate.c:
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4 | * contains a bit of helper code for animations.
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5 | *
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6 | * This is a new file with V0.81. Most of this code used to reside
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7 | * in common.c with previous versions.
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8 | * Note that with V0.9.0, the code for icon animations has been
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9 | * moved to the new comctl.c file.
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10 | *
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11 | * Usage: All PM programs.
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12 | *
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13 | * Function prefixes (new with V0.81):
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14 | * -- anm* Animation helper functions
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15 | *
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16 | * Note: Version numbering in this file relates to XWorkplace version
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17 | * numbering.
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18 | *
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19 | *@@header "helpers\animate.h"
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20 | */
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21 |
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22 | /*
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23 | * Copyright (C) 1997-2000 Ulrich Mller.
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24 | * This file is part of the "XWorkplace helpers" source package.
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25 | * This is free software; you can redistribute it and/or modify
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26 | * it under the terms of the GNU General Public License as published
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27 | * by the Free Software Foundation, in version 2 as it comes in the
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28 | * "COPYING" file of the XWorkplace main distribution.
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29 | * This program is distributed in the hope that it will be useful,
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30 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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31 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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32 | * GNU General Public License for more details.
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33 | */
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34 |
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35 | #define OS2EMX_PLAIN_CHAR
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36 | // this is needed for "os2emx.h"; if this is defined,
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37 | // emx will define PSZ as _signed_ char, otherwise
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38 | // as unsigned char
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39 |
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40 | #define INCL_DOSPROCESS
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41 | #define INCL_DOSDEVICES
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42 | #define INCL_DOSDEVIOCTL
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43 | #define INCL_DOSMISC
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44 | #define INCL_DOSERRORS
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45 |
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46 | #define INCL_WINWINDOWMGR
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47 | #define INCL_WINPOINTERS
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48 | #define INCL_WINSYS
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49 |
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50 | #define INCL_GPILOGCOLORTABLE
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51 | #define INCL_GPIPRIMITIVES
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52 | #define INCL_GPIBITMAPS // added UM 99-10-22; needed for EMX headers
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53 | #include <os2.h>
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54 |
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55 | #include <stdlib.h>
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56 | #include <string.h>
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57 |
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58 | #include "setup.h" // code generation and debugging options
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59 |
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60 | // #include "helpers\animate.h"
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61 |
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62 | // #include "helpers\winh.h"
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63 | // #include "helpers\gpih.h"
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64 |
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65 | /*
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66 | *@@category: Helpers\PM helpers\Animation helpers
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67 | * See animate.c.
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68 | */
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69 |
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70 | /*
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71 | *@@ anmBlowUpBitmap:
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72 | * this displays an animation based on a given bitmap.
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73 | * The bitmap is "blown up" in that it is continually
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74 | * increased in size until the original size is reached.
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75 | * The animation is calculated so that it lasts exactly
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76 | * ulAnimation milliseconds, no matter how fast the
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77 | * system is.
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78 | *
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79 | * This function does not return until the animation
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80 | * has completed.
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81 | *
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82 | * You should run this routine in a thread with higher-
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83 | * than-normal priority, because otherwise the kernel
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84 | * might interrupt the thread, causing a somewhat jerky
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85 | * display.
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86 | *
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87 | * Returns the count of animation steps that were drawn.
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88 | * This is dependent on the speed of the system.
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89 | *
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90 | *@@changed V0.9.7 (2000-12-08) [umoeller]: got rid of dtGetULongTime
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91 | */
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92 |
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93 | BOOL anmBlowUpBitmap(HPS hps, // in: from WinGetScreenPS(HWND_DESKTOP)
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94 | HBITMAP hbm, // in: bitmap to be displayed
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95 | ULONG ulAnimationTime) // in: total animation time (ms)
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96 | {
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97 | ULONG ulrc = 0;
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98 | ULONG ulInitialTime,
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99 | ulNowTime;
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100 | // ulCurrentSize = 10;
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101 |
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102 | if (hps)
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103 | {
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104 | POINTL ptl = {0, 0};
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105 | RECTL rtlStretch;
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106 | ULONG ul,
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107 | ulSteps = 20;
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108 | BITMAPINFOHEADER bih;
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109 | GpiQueryBitmapParameters(hbm, &bih);
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110 | /* ptl.y = WinQuerySysValue(HWND_DESKTOP, SV_CYSCREEN)
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111 | - BMPSPACING
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112 | - bih.cy; */
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113 | ptl.x = (WinQuerySysValue(HWND_DESKTOP, SV_CXSCREEN)
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114 | - bih.cx) / 2;
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115 | ptl.y = (WinQuerySysValue(HWND_DESKTOP, SV_CYSCREEN)
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116 | - bih.cy) / 2;
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117 |
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118 | // we now use ul for the current animation step,
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119 | // which is a pointer on a scale from 1 to ulAnimationTime;
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120 | // ul will be recalculated after each animation
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121 | // step according to how much time the animation
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122 | // has cost on this display so far. This has the
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123 | // following advantages:
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124 | // 1) no matter how fast the system is, the animation
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125 | // will always last ulAnimationTime milliseconds
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126 | // 2) since large bitmaps take more time to calculate,
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127 | // the animation won't appear to slow down then
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128 | DosQuerySysInfo(QSV_MS_COUNT, QSV_MS_COUNT,
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129 | &ulInitialTime,
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130 | sizeof(ulInitialTime));
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131 | ul = 1;
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132 | ulSteps = 1000;
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133 | do {
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134 | LONG cx = (((bih.cx-20) * ul) / ulSteps) + 20;
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135 | LONG cy = (((bih.cy-20) * ul) / ulSteps) + 20;
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136 | rtlStretch.xLeft = ptl.x + ((bih.cx - cx) / 2);
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137 | rtlStretch.yBottom = ptl.y + ((bih.cy - cy) / 2);
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138 | rtlStretch.xRight = rtlStretch.xLeft + cx;
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139 | rtlStretch.yTop = rtlStretch.yBottom + cy;
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140 |
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141 | WinDrawBitmap(hps, hbm, NULL, (PPOINTL)&rtlStretch,
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142 | 0, 0, // we don't need colors
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143 | DBM_STRETCH);
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144 |
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145 | DosQuerySysInfo(QSV_MS_COUNT, QSV_MS_COUNT,
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146 | &ulNowTime,
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147 | sizeof(ulNowTime));
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148 |
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149 | // recalculate ul: rule of three based on the
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150 | // time we've spent on animation so far
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151 | ul = (ulSteps
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152 | * (ulNowTime - ulInitialTime)) // time spent so far
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153 | / ulAnimationTime; // time to spend altogether
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154 |
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155 | ulrc++; // return count
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156 |
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157 | } while (ul < ulSteps);
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158 |
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159 | // finally, draw the 1:1 version
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160 | WinDrawBitmap(hps, hbm, NULL, &ptl,
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161 | 0, 0, // we don't need colors
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162 | DBM_NORMAL);
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163 |
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164 | } // end if (hps)
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165 |
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166 | return ulrc;
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167 | }
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168 |
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169 | #define LAST_LINE_WIDTH 2
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170 |
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171 | /* ******************************************************************
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172 | *
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173 | * Other animations
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174 | *
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175 | ********************************************************************/
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176 |
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177 | /*
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178 | *@@ anmPowerOff:
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179 | * displays an animation that looks like a
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180 | * monitor being turned off; hps must have
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181 | * been acquired using WinGetScreenPS.
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182 | *
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183 | *@@changed V0.9.7 (2000-12-08) [umoeller]: got rid of dtGetULongTime
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184 | */
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185 |
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186 | VOID anmPowerOff(HPS hps,
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187 | ULONG ulMaxTime1, // = 500,
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188 | ULONG ulMaxTime2, // = 800,
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189 | ULONG ulMaxTime3, // = 200,
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190 | ULONG ulWaitEnd) // = 300
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191 | {
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192 | RECTL rclScreen,
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193 | rclNow,
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194 | rclLast,
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195 | rclDraw;
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196 | ULONG ulPhase = 1,
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197 | ulCXLastLine;
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198 |
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199 | ULONG ulStartTime = 0,
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200 | ulTimeNow = 0;
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201 |
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202 | WinQueryWindowRect(HWND_DESKTOP, &rclScreen);
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203 | ulCXLastLine = rclScreen.xRight / 3;
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204 |
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205 | WinShowPointer(HWND_DESKTOP, FALSE);
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206 |
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207 | memcpy(&rclLast, &rclScreen, sizeof(RECTL));
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208 |
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209 | // In order to draw the animation, we tell apart three
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210 | // "phases", signified by the ulPhase variable. While
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211 | // ulPhase != 99, we stay in a do-while loop.
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212 | ulPhase = 1;
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213 |
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214 | do
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215 | {
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216 | // get current time
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217 | DosQuerySysInfo(QSV_MS_COUNT, QSV_MS_COUNT,
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218 | &ulTimeNow,
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219 | sizeof(ulTimeNow));
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220 |
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221 | // get start time
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222 | if (ulStartTime == 0)
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223 | // this is reset when we enter a new phase
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224 | ulStartTime = ulTimeNow;
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225 |
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226 | if (ulPhase == 1)
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227 | {
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228 | // Phase 1: "shrink" the screen by drawing black
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229 | // rectangles from the edges towards the center
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230 | // of the screen. With every loop, we draw the
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231 | // rectangles a bit closer to the center, until
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232 | // the center is black too. Sort of like this:
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233 |
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234 | // ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
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235 | // º black º
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236 | // º º
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237 | // º ÚÄÄÄÄÄÄÄÄÄÄÄ¿ º
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238 | // º ³ rclNow: ³ º
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239 | // º -> ³ untouched ³ <- º
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240 | // º ÀÄÄÄÄÄÄÄÄÄÄÄÙ º
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241 | // º ^ º
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242 | // º | º
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243 | // ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍŒ
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244 |
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245 | // This part lasts exactly (ulMaxTime1) milliseconds.
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246 |
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247 | // rclNow contains the rectangle _around_ which
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248 | // the black rectangles are to be drawn. With
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249 | // every iteration, rclNow is reduced in size.
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250 | ULONG ulMaxX = (rclScreen.xRight - ulCXLastLine) / 2,
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251 | ulMaxY = rclScreen.yTop / 2 - LAST_LINE_WIDTH;
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252 | ULONG ulTimePassed = (ulTimeNow - ulStartTime);
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253 | if (ulTimePassed >= ulMaxTime1)
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254 | {
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255 | // time has elapsed:
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256 | ulTimePassed = ulMaxTime1;
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257 | // enter next phase on next loop
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258 | ulPhase++;
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259 | // reget start time
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260 | ulStartTime = 0;
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261 | }
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262 | rclNow.xLeft = ulMaxX * ulTimePassed / ulMaxTime1;
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263 | rclNow.yBottom = ulMaxY * ulTimePassed / ulMaxTime1;
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264 | rclNow.xRight = (rclScreen.xRight) - rclNow.xLeft;
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265 | rclNow.yTop = (rclScreen.yTop) - rclNow.yBottom;
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266 |
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267 | /* rclNow.xLeft = ((rclScreen.yTop / 2) * ul / ulSteps );
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268 | rclNow.xRight = (rclScreen.xRight) - rclNow.xLeft;
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269 | rclNow.yBottom = ((rclScreen.yTop / 2) * ul / ulSteps );
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270 | rclNow.yTop = (rclScreen.yTop) - rclNow.yBottom; */
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271 |
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272 | /* if (rclNow.yBottom > (rclNow.yTop - LAST_WIDTH) )
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273 | {
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274 | rclNow.yBottom = (rclScreen.yTop / 2) - LAST_WIDTH;
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275 | rclNow.yTop = (rclScreen.yTop / 2) + LAST_WIDTH;
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276 | } */
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277 |
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278 | // draw black rectangle on top of rclNow
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279 | rclDraw.xLeft = rclLast.xLeft;
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280 | rclDraw.xRight = rclLast.xRight;
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281 | rclDraw.yBottom = rclNow.yTop;
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282 | rclDraw.yTop = rclLast.yTop;
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283 | WinFillRect(hps, &rclDraw, CLR_BLACK); // exclusive
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284 |
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285 | // draw black rectangle left of rclNow
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286 | rclDraw.xLeft = rclLast.xLeft;
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287 | rclDraw.xRight = rclNow.xLeft;
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288 | rclDraw.yBottom = rclLast.yBottom;
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289 | rclDraw.yTop = rclLast.yTop;
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290 | WinFillRect(hps, &rclDraw, CLR_BLACK); // exclusive
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291 |
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292 | // draw black rectangle right of rclNow
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293 | rclDraw.xLeft = rclNow.xRight;
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294 | rclDraw.xRight = rclLast.xRight;
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295 | rclDraw.yBottom = rclLast.yBottom;
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296 | rclDraw.yTop = rclLast.yTop;
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297 | WinFillRect(hps, &rclDraw, CLR_BLACK); // exclusive
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298 |
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299 | // draw black rectangle at the bottom of rclNow
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300 | rclDraw.xLeft = rclLast.xLeft;
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301 | rclDraw.xRight = rclLast.xRight;
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302 | rclDraw.yBottom = rclLast.yBottom;
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303 | rclDraw.yTop = rclNow.yBottom;
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304 | WinFillRect(hps, &rclDraw, CLR_BLACK); // exclusive
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305 |
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306 | // remember rclNow for next iteration
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307 | memcpy(&rclLast, &rclNow, sizeof(RECTL));
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308 |
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309 | // done with "shrinking"?
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310 | /* if ( rclNow.xRight < ((rclScreen.xRight / 2) + LAST_WIDTH) )
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311 | {
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312 | ulPhase = 2; // exit
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313 | // reget start time
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314 | ulStartTime = 0;
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315 | } */
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316 |
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317 | if (ulPhase == 2)
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318 | {
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319 | // this was the last step in this phase:
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320 | memcpy(&rclLast, &rclScreen, sizeof(RECTL));
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321 | }
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322 | }
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323 | else if (ulPhase == 2)
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324 | {
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325 | // Phase 2: draw a horizontal white line about
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326 | // where the last rclNow was. and shrink it
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327 | // towards the middle. This ends with a white
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328 | // dot in the middle of the screen.
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329 |
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330 | // ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
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331 | // º black º
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332 | // º º
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333 | // º º
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334 | // º --> ÄwhiteÄÄÄÄ <-- º
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335 | // º º
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336 | // º º
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337 | // º º
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338 | // ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍŒ
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339 |
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340 | // This part lasts exactly (ulMaxTime2) milliseconds.
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341 |
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342 | // start is same as max in step 1
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343 | ULONG ulStartX = (rclScreen.xRight - ulCXLastLine) / 2,
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344 | ulY = rclScreen.yTop / 2 - LAST_LINE_WIDTH;
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345 | ULONG ulMaxX = (rclScreen.xRight) / 2 - LAST_LINE_WIDTH; // center
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346 | ULONG ulTimePassed = (ulTimeNow - ulStartTime);
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347 | if (ulTimePassed >= ulMaxTime2)
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348 | {
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349 | // time has elapsed:
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350 | ulTimePassed = ulMaxTime2;
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351 | // enter next phase on next loop
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352 | ulPhase++;
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353 | // reget start time
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354 | ulStartTime = 0;
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355 | }
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356 |
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357 | rclNow.xLeft = ulStartX
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358 | + ( (ulMaxX - ulStartX) * ulTimePassed / ulMaxTime2 );
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359 | rclNow.yBottom = ulY;
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360 | rclNow.xRight = (rclScreen.xRight) - rclNow.xLeft;
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361 | rclNow.yTop = (rclScreen.yTop) - rclNow.yBottom;
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362 |
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363 | // draw black rectangle left of rclNow
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364 | rclDraw.xLeft = rclLast.xLeft;
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365 | rclDraw.xRight = rclNow.xLeft;
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366 | rclDraw.yBottom = rclLast.yBottom;
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367 | rclDraw.yTop = rclLast.yTop;
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368 | WinFillRect(hps, &rclDraw, CLR_BLACK); // exclusive
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369 |
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370 | // draw black rectangle right of rclNow
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371 | rclDraw.xLeft = rclNow.xRight;
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372 | rclDraw.xRight = rclLast.xRight;
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373 | rclDraw.yBottom = rclLast.yBottom;
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374 | rclDraw.yTop = rclLast.yTop;
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375 | WinFillRect(hps, &rclDraw, CLR_BLACK); // exclusive
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376 |
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377 | // WinFillRect(hps, &rclNow, CLR_WHITE); // exclusive
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378 |
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379 | // remember rclNow for next iteration
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380 | memcpy(&rclLast, &rclNow, sizeof(RECTL));
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381 |
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382 | if (ulPhase == 3)
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383 | {
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384 | // this was the last step in this phase:
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385 | // keep the dot visible for a while
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386 | DosSleep(ulMaxTime3);
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387 |
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388 | // draw a white line for phase 3
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389 | rclLast.xLeft = ulMaxX;
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390 | rclLast.yBottom = rclScreen.yTop / 4;
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391 | rclLast.xRight = rclScreen.xRight - rclLast.xLeft;
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392 | rclLast.yTop = rclScreen.yTop - rclLast.yBottom;
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393 |
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394 | WinFillRect(hps, &rclLast, CLR_WHITE); // exclusive
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395 | }
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396 | }
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397 | else if (ulPhase == 3)
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398 | {
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399 | // Phase 3: make the white line shorter with
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400 | // every iteration by drawing black rectangles
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401 | // above and below it. These are drawn closer
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402 | // to the center with each iteration.
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403 |
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404 | // ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
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405 | // º º
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406 | // º º
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407 | // º | º
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408 | // º | º
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409 | // º | º
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410 | // º º
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411 | // º º
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412 | // ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍŒ
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413 |
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414 | // This part lasts exactly ulMaxTime3 milliseconds.
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415 | ULONG ulX = (rclScreen.xRight) / 2 - LAST_LINE_WIDTH, // center
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416 | ulStartY = rclScreen.yTop / 4;
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417 | ULONG ulMaxY = (rclScreen.yTop) / 2 - LAST_LINE_WIDTH; // center
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418 | ULONG ulTimePassed = (ulTimeNow - ulStartTime);
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419 | if (ulTimePassed >= ulMaxTime3)
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420 | {
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421 | // time has elapsed:
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422 | ulTimePassed = ulMaxTime3;
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423 | // stop
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424 | ulPhase = 99;
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425 | }
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426 |
|
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427 | rclNow.xLeft = ulX;
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428 | rclNow.yBottom = ulStartY
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429 | + ( (ulMaxY - ulStartY) * ulTimePassed / ulMaxTime3 );
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430 | rclNow.xRight = (rclScreen.xRight) - rclNow.xLeft;
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431 | rclNow.yTop = (rclScreen.yTop) - rclNow.yBottom;
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432 |
|
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433 | // draw black rectangle on top of rclNow
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434 | rclDraw.xLeft = rclLast.xLeft;
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435 | rclDraw.xRight = rclLast.xRight;
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436 | rclDraw.yBottom = rclNow.yTop;
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437 | rclDraw.yTop = rclLast.yTop;
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438 | WinFillRect(hps, &rclDraw, CLR_BLACK); // exclusive
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439 |
|
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440 | // draw black rectangle at the bottom of rclNow
|
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441 | rclDraw.xLeft = rclLast.xLeft;
|
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442 | rclDraw.xRight = rclLast.xRight;
|
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443 | rclDraw.yBottom = rclLast.yBottom;
|
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444 | rclDraw.yTop = rclNow.yBottom;
|
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445 | WinFillRect(hps, &rclDraw, CLR_BLACK); // exclusive
|
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446 |
|
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447 | // remember rclNow for next iteration
|
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448 | memcpy(&rclLast, &rclNow, sizeof(RECTL));
|
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449 |
|
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450 | /* rclDraw.xLeft = (rclScreen.xRight / 2) - LAST_LINE_WIDTH;
|
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451 | rclDraw.xRight = (rclScreen.xRight / 2) + LAST_LINE_WIDTH;
|
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452 | rclDraw.yTop = (rclScreen.yTop * 3 / 4);
|
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453 | rclDraw.yBottom = (rclScreen.yTop * 3 / 4) - ((rclScreen.yTop * 1 / 4) * ul / LAST_STEPS);
|
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454 | if (rclDraw.yBottom < ((rclScreen.yTop / 2) + LAST_LINE_WIDTH))
|
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455 | rclDraw.yBottom = ((rclScreen.yTop / 2) + LAST_LINE_WIDTH);
|
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456 | WinFillRect(hps, &rclDraw, CLR_BLACK);
|
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457 |
|
---|
458 | rclDraw.xLeft = (rclScreen.xRight / 2) - LAST_LINE_WIDTH;
|
---|
459 | rclDraw.xRight = (rclScreen.xRight / 2) + LAST_LINE_WIDTH;
|
---|
460 | rclDraw.yBottom = (rclScreen.yTop * 1 / 4);
|
---|
461 | rclDraw.yTop = (rclScreen.yTop * 1 / 4) + ((rclScreen.yTop * 1 / 4) * ul / LAST_STEPS);
|
---|
462 | if (rclDraw.yTop > ((rclScreen.yTop / 2) - LAST_LINE_WIDTH))
|
---|
463 | rclDraw.yBottom = ((rclScreen.yTop / 2) - LAST_LINE_WIDTH);
|
---|
464 |
|
---|
465 | WinFillRect(hps, &rclDraw, CLR_BLACK);
|
---|
466 |
|
---|
467 | ul++;
|
---|
468 | if (ul > LAST_STEPS) */
|
---|
469 | // ulPhase = 99;
|
---|
470 | }
|
---|
471 |
|
---|
472 | } while (ulPhase != 99);
|
---|
473 |
|
---|
474 | // sleep a while
|
---|
475 | DosSleep(ulWaitEnd / 2);
|
---|
476 | WinFillRect(hps, &rclScreen, CLR_BLACK); // exclusive
|
---|
477 | DosSleep(ulWaitEnd / 2);
|
---|
478 |
|
---|
479 | WinShowPointer(HWND_DESKTOP, TRUE);
|
---|
480 | }
|
---|
481 |
|
---|
482 |
|
---|
483 | // testcase
|
---|
484 |
|
---|
485 | /* int main(int argc, char* argp)
|
---|
486 | {
|
---|
487 | HENUM henum;
|
---|
488 | HWND hwndTop;
|
---|
489 | HAB hab = WinInitialize(0);
|
---|
490 | HMQ hmq = WinCreateMsgQueue(hab, 0);
|
---|
491 | HPS hps = WinGetScreenPS(HWND_DESKTOP);
|
---|
492 |
|
---|
493 | anmPowerOff(hps);
|
---|
494 |
|
---|
495 | henum = WinBeginEnumWindows(HWND_DESKTOP);
|
---|
496 | while ((hwndTop = WinGetNextWindow(henum)))
|
---|
497 | if (WinIsWindowShowing(hwndTop))
|
---|
498 | WinInvalidateRect(hwndTop, NULL, TRUE);
|
---|
499 | WinEndEnumWindows(henum);
|
---|
500 |
|
---|
501 | WinShowPointer(HWND_DESKTOP, TRUE);
|
---|
502 |
|
---|
503 | WinDestroyMsgQueue(hmq);
|
---|
504 | WinTerminate(hab);
|
---|
505 |
|
---|
506 | return (0);
|
---|
507 | } */
|
---|