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annotate semiconginev2/old/platform/linux/window.nim @ 1218:56781cc0fc7c compiletime-tests

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did: renamge main package
author sam <sam@basx.dev>
date Wed, 17 Jul 2024 21:01:37 +0700
parents semicongine/old/platform/linux/window.nim@a3eb305bcac2
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 import std/options
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2 import std/tables
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3 import std/strformat
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4 import std/logging
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5
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6 import ../../thirdparty/x11/xlib
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7 import ../../thirdparty/x11/xutil
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8 import ../../thirdparty/x11/keysym
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9 import ../../thirdparty/x11/x
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10 import ../../thirdparty/x11/xkblib
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11
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12 import ../../core
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13 import ../../events
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14
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15 import ./symkey_map
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16
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17 export keysym
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18
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19 var deleteMessage*: Atom
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20
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21 type
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22 NativeWindow* = object
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23 display*: ptr xlib.Display
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24 window*: x.Window
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25 emptyCursor: Cursor
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26
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27 template checkXlibResult(call: untyped) =
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28 let value = call
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29 if value == 0:
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30 raise newException(Exception, "Xlib error: " & astToStr(call) &
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31 " returned " & $value)
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32
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33 proc XErrorLogger(display: PDisplay, event: PXErrorEvent): cint {.cdecl.} =
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34 error &"Xlib: {event[]}"
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35
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36 proc CreateWindow*(title: string): NativeWindow =
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37 checkXlibResult XInitThreads()
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38 let display = XOpenDisplay(nil)
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39 if display == nil:
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40 quit "Failed to open display"
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41 discard XSetErrorHandler(XErrorLogger)
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42
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43 let rootWindow = display.XDefaultRootWindow()
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44 discard display.XkbSetDetectableAutoRepeat(true, nil)
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45 var
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46 attribs: XWindowAttributes
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47 width = cuint(800)
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48 height = cuint(600)
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49 checkXlibResult display.XGetWindowAttributes(rootWindow, addr(attribs))
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50
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51 var attrs = XSetWindowAttributes()
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52 let window = XCreateWindow(
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53 display,
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54 rootWindow,
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55 (attribs.width - cint(width)) div 2, (attribs.height - cint(height)) div 2,
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56 width, height,
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57 0,
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58 CopyFromParent,
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59 InputOutput,
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60 cast[PVisual](CopyFromParent),
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61 0, # CWOverrideRedirect,
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62 addr attrs,
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63 # foregroundColor, backgroundColor
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64 )
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65 checkXlibResult XSetStandardProperties(display, window, title, "window", 0, nil, 0, nil)
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66 checkXlibResult XSelectInput(display, window, PointerMotionMask or ButtonPressMask or ButtonReleaseMask or KeyPressMask or KeyReleaseMask or ExposureMask)
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67 checkXlibResult XMapWindow(display, window)
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68
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69 deleteMessage = XInternAtom(display, "WM_DELETE_WINDOW", XBool(false))
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70 checkXlibResult XSetWMProtocols(display, window, addr(deleteMessage), 1)
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71
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72 var data = "\0".cstring
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73 var pixmap = display.XCreateBitmapFromData(window, data, 1, 1)
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74 var color: XColor
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75 var empty_cursor = display.XCreatePixmapCursor(pixmap, pixmap, addr(color), addr(color), 0, 0)
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76 checkXlibResult display.XFreePixmap(pixmap)
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77 return NativeWindow(display: display, window: window, emptyCursor: empty_cursor)
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78
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79 proc SetTitle*(window: NativeWindow, title: string) =
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80 checkXlibResult XSetStandardProperties(window.display, window.window, title, "window", 0, nil, 0, nil)
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81
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82 proc Fullscreen*(window: var NativeWindow, enable: bool) =
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83 var
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84 wm_state = window.display.XInternAtom("_NET_WM_STATE", 0)
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85 wm_fullscreen = window.display.XInternAtom("_NET_WM_STATE_FULLSCREEN", 0)
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86 var
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87 xev: XEvent
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88 xev.xclient = XClientMessageEvent(
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89 message_type: wm_state,
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90 format: 32,
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91 window: window.window,
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92 data: XClientMessageData(
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93 l: [
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94 int(not enable) xor 1,
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95 clong(wm_fullscreen),
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96 0,
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97 0,
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98 0
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99 ]
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100 )
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101 )
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102 xev.theType = ClientMessage
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103
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104 checkXlibResult window.display.XSendEvent(
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105 window.display.DefaultRootWindow(),
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106 0,
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107 SubstructureRedirectMask or SubstructureNotifyMask,
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108 addr xev
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109 )
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110 checkXlibResult window.display.XFlush()
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111
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112 proc HideSystemCursor*(window: NativeWindow) =
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113 checkXlibResult XDefineCursor(window.display, window.window, window.emptyCursor)
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114 checkXlibResult window.display.XFlush()
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115
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116 proc ShowSystemCursor*(window: NativeWindow) =
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117 checkXlibResult XUndefineCursor(window.display, window.window)
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118 checkXlibResult window.display.XFlush()
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119
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120 proc Destroy*(window: NativeWindow) =
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121 checkXlibResult window.display.XFreeCursor(window.emptyCursor)
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122 checkXlibResult window.display.XDestroyWindow(window.window)
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123 discard window.display.XCloseDisplay() # always returns 0
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124
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125 proc Size*(window: NativeWindow): (int, int) =
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126 var attribs: XWindowAttributes
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127 checkXlibResult XGetWindowAttributes(window.display, window.window, addr(attribs))
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128 return (int(attribs.width), int(attribs.height))
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129
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130 proc PendingEvents*(window: NativeWindow): seq[Event] =
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131 var event: XEvent
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132 while window.display.XPending() > 0:
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133 discard window.display.XNextEvent(addr(event))
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134 case event.theType
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135 of ClientMessage:
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136 if cast[Atom](event.xclient.data.l[0]) == deleteMessage:
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137 result.add(Event(eventType: Quit))
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138 of KeyPress:
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139 let keyevent = cast[PXKeyEvent](addr(event))
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140 let xkey = int(keyevent.keycode)
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141 result.add Event(eventType: KeyPressed, key: KeyTypeMap.getOrDefault(xkey, Key.UNKNOWN))
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142 of KeyRelease:
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143 let keyevent = cast[PXKeyEvent](addr(event))
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144 let xkey = int(keyevent.keycode)
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145 result.add Event(eventType: KeyReleased, key: KeyTypeMap.getOrDefault(xkey, Key.UNKNOWN))
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146 of ButtonPress:
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147 let button = int(cast[PXButtonEvent](addr(event)).button)
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148 if button == Button4:
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149 result.add Event(eventType: MouseWheel, amount: 1'f32)
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150 elif button == Button5:
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151 result.add Event(eventType: MouseWheel, amount: -1'f32)
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152 else:
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153 result.add Event(eventType: MousePressed, button: MouseButtonTypeMap.getOrDefault(button, MouseButton.UNKNOWN))
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154 of ButtonRelease:
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155 let button = int(cast[PXButtonEvent](addr(event)).button)
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156 result.add Event(eventType: MouseReleased, button: MouseButtonTypeMap.getOrDefault(button, MouseButton.UNKNOWN))
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157 of MotionNotify:
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158 let motion = cast[PXMotionEvent](addr(event))
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159 result.add Event(eventType: MouseMoved, x: motion.x, y: motion.y)
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160 of ConfigureNotify, Expose:
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161 result.add Event(eventType: ResizedWindow)
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162 else:
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163 discard
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164
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165
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166 proc GetMousePosition*(window: NativeWindow): Option[Vec2f] =
840
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167 var
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168 root: x.Window
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169 win: x.Window
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170 rootX: cint
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171 rootY: cint
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172 winX: cint
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173 winY: cint
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174 mask: cuint
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175 onscreen = XQueryPointer(
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176 window.display,
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177 window.window,
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178 addr(root),
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179 addr(win),
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180 addr(rootX),
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181 addr(rootY),
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182 addr(winX),
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183 addr(winY),
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184 addr(mask),
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185 )
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186 if onscreen != 0:
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187 result = some(Vec2f([float32(winX), float32(winY)]))
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188