author | Stefan Vogel <sv@exept.de> |
Fri, 15 Jul 2016 13:57:43 +0200 | |
branch | delegated_gc |
changeset 7412 | d4b5f3114373 |
parent 6270 | 72356e5fa8f2 |
child 7261 | 9a2ab9752a55 |
permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1989 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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"{ Package: 'stx:libview' }" |
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||
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TopView subclass:#PopUpView |
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instanceVariableNames:'shadowView haveControl exclusivePointer mapTime |
16 |
previousPointerGrab previousKeyboardGrab' |
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classVariableNames:'DefaultShadow DefaultLevel DefaultBorderWidth DefaultBorderColor' |
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poolDictionaries:'' |
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category:'Views-Basic' |
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! |
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!PopUpView class methodsFor:'documentation'! |
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|
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copyright |
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" |
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COPYRIGHT (c) 1989 by Claus Gittinger |
|
72 | 27 |
All Rights Reserved |
46 | 28 |
|
29 |
This software is furnished under a license and may be used |
|
30 |
only in accordance with the terms of that license and with the |
|
31 |
inclusion of the above copyright notice. This software may not |
|
32 |
be provided or otherwise made available to, or used by, any |
|
33 |
other person. No title to or ownership of the software is |
|
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hereby transferred. |
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" |
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! |
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||
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documentation |
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" |
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this class implements an abstract superclass for all views which bypass the |
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window manager and pop up on top of the screen. A typical example is |
42 |
a PopUpMenu. PopUpView itself is abstract, providing basic mechanisms. |
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They are not decorated by window managers. |
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[styleSheet parameters:] |
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616 | 47 |
popupShadow <Boolean> if true, popupViews show a shadow below |
48 |
popupLevel <nil | Integer> 3D level |
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popupBorderWidth <nil | Integer> borderWidth |
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[author:] |
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Claus Gittinger |
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" |
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! ! |
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!PopUpView class methodsFor:'defaults'! |
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defaultExtent |
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"return the default extent of my instances. |
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The value returned here is usually ignored, and |
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the value from preferredExtent taken instead." |
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|display| |
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display := Screen current. |
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^ (display monitorBoundsAt:display pointerPosition) extent // 3. |
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"Modified: 5.7.1996 / 13:55:08 / cg" |
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! |
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shadows |
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"return the shadows-flag. False means: turned off. |
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Notice, that even when set to true, a particular device might |
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want to suppress this feature." |
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^ DefaultShadow |
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! |
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shadows:aBoolean |
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"turn on/off shadows under popUpViews. |
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Notice, that even when set to true, a particular device might |
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want to suppress this feature. |
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On slow displays, turning them off makes menus appear a bit snappier. |
84 |
The default is set via the styleSheet and changes when the viewStyle |
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is changed." |
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||
87 |
DefaultShadow := aBoolean |
|
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! |
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||
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shadowsOnDevice:aDevice |
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"return true, if shadows should be shown on aDevice" |
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^ DefaultShadow and:[aDevice suppressShadowViews not] |
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! |
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updateStyleCache |
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"extract values from the styleSheet and cache them in class variables" |
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<resource: #style (#'popup.shadow' #'popup.level' |
100 |
#'popup.borderWidth' |
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#'popup.borderColor')> |
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485 | 102 |
|
269 | 103 |
ShadowView isNil ifTrue:[ |
485 | 104 |
DefaultShadow := false |
269 | 105 |
] ifFalse:[ |
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"/ notice, that even when true, a particular device might |
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"/ want to suppress this feature. |
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DefaultShadow := StyleSheet at:'popup.shadow' default:false. |
269 | 109 |
]. |
1930 | 110 |
DefaultLevel := StyleSheet at:'popup.level'. |
111 |
DefaultBorderWidth := StyleSheet at:'popup.borderWidth'. |
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DefaultBorderColor := StyleSheet colorAt:'popup.borderColor' default:Color black. |
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"Modified: 20.10.1997 / 15:10:07 / cg" |
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! ! |
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117 |
!PopUpView methodsFor:'accessing'! |
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118 |
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exclusivePointer:aBoolean |
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"set/clear the exclusive pointer flag; |
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DANGER: if set, no interaction with other views is possible, |
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while the popUp is active" |
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exclusivePointer := aBoolean |
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"Modified: 12.5.1996 / 22:02:52 / cg" |
269 | 127 |
! |
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haveControl:aBoolean |
130 |
"set the flag which decides whether the pointers canbe grab |
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during mapped. |
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" |
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haveControl := aBoolean. |
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! |
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||
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noShadow |
137 |
"turn off the shadow" |
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139 |
shadowView := nil |
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! ! |
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141 |
||
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!PopUpView methodsFor:'activation & deactivation'! |
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open |
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"default for popUpViews is to come up modal" |
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|
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self openModal |
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! |
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show |
151 |
"realize the view at its last position" |
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153 |
self fixSize. |
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self open |
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! |
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showAt:aPoint |
158 |
"realize the view at aPoint" |
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160 |
self showAt:aPoint resizing:true |
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! |
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163 |
showAt:aPoint resizing:aBoolean |
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"realize the view at aPoint" |
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166 |
aBoolean ifTrue:[ |
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self fixSize. |
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]. |
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self origin:aPoint. |
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self makeFullyVisible. |
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self open |
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! |
173 |
||
174 |
showAtPointer |
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"realize the view at the current pointer position" |
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self showAt:(self graphicsDevice pointerPosition) resizing:true |
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! |
179 |
||
180 |
showCenteredIn:aView |
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"make myself visible at the screen center." |
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182 |
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183 |
|top| |
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184 |
||
185 |
top := aView topView. |
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186 |
top raise. |
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187 |
self showAt:(top origin |
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188 |
+ (aView originRelativeTo:top) |
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189 |
+ (aView extent // 2) |
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- (self extent // 2)) |
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! ! |
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192 |
||
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!PopUpView methodsFor:'defaults'! |
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||
195 |
defaultShadow |
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"obsoleted by PopUpView defaultShadowOn:aDevice" |
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<resource: #obsolete> |
199 |
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self obsoleteMethodWarning. |
2412 | 201 |
^ DefaultShadow |
202 |
||
203 |
"Created: / 4.12.1998 / 15:11:20 / cg" |
|
204 |
! ! |
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205 |
||
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!PopUpView methodsFor:'grabbing'! |
207 |
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208 |
grabKeyboard |
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previousKeyboardGrab := self graphicsDevice activeKeyboardGrab. |
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"/ Transcript show:'k-ggg by '; show:self; show:'[',self identityHash printString,']'; showCR:' - previous is ' , previousKeyboardGrab printString. |
211 |
^ super grabKeyboard |
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212 |
! |
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213 |
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214 |
grabPointerWithCursor:aCursorOrNil |
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previousPointerGrab := self graphicsDevice activePointerGrab. |
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"/ Transcript show:'ggg by '; show:self; show:'[',self identityHash printString,']'; showCR:' - previous is ' , previousPointerGrab printString. |
217 |
^ super grabPointerWithCursor:aCursorOrNil |
|
218 |
! |
|
219 |
||
220 |
ungrabKeyboard |
|
221 |
"/ Transcript show:'k-uuu by '; show:self; show:'[',self identityHash printString,']'; showCR:' - previous is ' , previousKeyboardGrab printString. |
|
222 |
super ungrabKeyboard. |
|
223 |
previousKeyboardGrab notNil ifTrue:[ |
|
6270 | 224 |
self graphicsDevice grabKeyboardInView:previousKeyboardGrab |
3088 | 225 |
]. |
226 |
! |
|
227 |
||
228 |
ungrabPointer |
|
229 |
"/ Transcript show:'uuu by '; show:self; show:'[',self identityHash printString,']'; showCR:' - previous is ' , previousPointerGrab printString. |
|
230 |
super ungrabPointer. |
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231 |
previousPointerGrab notNil ifTrue:[ |
|
6270 | 232 |
self graphicsDevice grabPointerInView:previousPointerGrab |
3088 | 233 |
]. |
234 |
! ! |
|
235 |
||
3884 | 236 |
!PopUpView methodsFor:'initialization & release'! |
0 | 237 |
|
269 | 238 |
create |
239 |
super create. |
|
1732 | 240 |
|
269 | 241 |
shadowView isNil ifTrue:[ |
1732 | 242 |
self saveUnder:true |
269 | 243 |
] |
244 |
! |
|
245 |
||
246 |
destroy |
|
141 | 247 |
haveControl := false. |
269 | 248 |
super destroy. |
249 |
shadowView notNil ifTrue:[shadowView destroy. shadowView := nil] |
|
81 | 250 |
! |
251 |
||
252 |
initStyle |
|
1263 | 253 |
"setup viewStyle specifics" |
254 |
||
5416 | 255 |
|l bw| |
81 | 256 |
|
2574 | 257 |
super initStyle. |
0 | 258 |
|
81 | 259 |
DefaultBorderColor notNil ifTrue:[ |
6270 | 260 |
self borderColor:(DefaultBorderColor onDevice:self graphicsDevice). |
81 | 261 |
]. |
5416 | 262 |
(bw := DefaultBorderWidth) isNil ifTrue:[ |
263 |
bw := (styleSheet is3D ifTrue:[0] ifFalse:[1]). |
|
81 | 264 |
]. |
5416 | 265 |
self borderWidth:bw. |
266 |
||
2574 | 267 |
DefaultLevel isNil ifTrue:[ |
268 |
l := styleSheet is3D ifTrue:[1] ifFalse:[0]. |
|
269 |
] ifFalse:[ |
|
270 |
l := DefaultLevel. |
|
81 | 271 |
]. |
2574 | 272 |
self level:l. |
81 | 273 |
|
6270 | 274 |
(self class shadowsOnDevice:self graphicsDevice) ifTrue:[ |
275 |
shadowView := (ShadowView onDevice:self graphicsDevice) for:self. |
|
0 | 276 |
]. |
1263 | 277 |
|
2412 | 278 |
"Modified: / 4.12.1998 / 15:11:28 / cg" |
0 | 279 |
! |
280 |
||
269 | 281 |
initialize |
282 |
super initialize. |
|
283 |
exclusivePointer := true. |
|
0 | 284 |
haveControl := false. |
4080 | 285 |
self bePopUpView |
162 | 286 |
! |
287 |
||
3307 | 288 |
releaseDeviceResources |
289 |
shadowView notNil ifTrue:[shadowView destroy. shadowView := nil]. |
|
290 |
super releaseDeviceResources |
|
291 |
! |
|
292 |
||
162 | 293 |
releasePointer |
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"release the mouse pointer" |
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295 |
|
6270 | 296 |
self graphicsDevice activePointerGrab == self ifTrue:[ |
297 |
self graphicsDevice ungrabPointer. |
|
162 | 298 |
]. |
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|
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"Modified: 12.5.1996 / 22:04:09 / cg" |
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301 |
! |
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|
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303 |
releasePointerAndKeyboard |
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304 |
"release the pointer and keyboard" |
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305 |
|
3088 | 306 |
self ungrabPointer. |
307 |
self ungrabKeyboard. |
|
0 | 308 |
! ! |
309 |
||
269 | 310 |
!PopUpView methodsFor:'private'! |
0 | 311 |
|
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312 |
regainControl |
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313 |
"get exclusive access to pointer and keyboard" |
0 | 314 |
|
648 | 315 |
shown ifTrue:[ |
3088 | 316 |
self grabPointer. |
317 |
self grabKeyboard. |
|
318 |
self sensor flushMotionEventsFor:nil; flushKeyboardFor:nil. |
|
648 | 319 |
]. |
493 | 320 |
|
648 | 321 |
"Modified: 6.5.1996 / 22:33:39 / stefan" |
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322 |
"Modified: 12.5.1996 / 22:04:42 / cg" |
89 | 323 |
! ! |
324 |
||
269 | 325 |
!PopUpView methodsFor:'queries'! |
89 | 326 |
|
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327 |
grabWhenMapped |
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328 |
"return true, if I should perform a grab when mapped. |
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329 |
Redefinable for subclasses." |
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330 |
|
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331 |
^ true |
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332 |
|
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333 |
"Modified: 12.5.1996 / 21:57:51 / cg" |
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|
334 |
! |
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335 |
|
269 | 336 |
isPopUpView |
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337 |
"return true, since I want to come up without decoration |
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338 |
and popUp to top immediately." |
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339 |
|
269 | 340 |
^ true |
677
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341 |
|
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342 |
"Modified: 12.5.1996 / 21:57:51 / cg" |
0 | 343 |
! ! |
344 |
||
3882 | 345 |
!PopUpView methodsFor:'realize & unrealize'! |
0 | 346 |
|
2574 | 347 |
hide |
348 |
"hide the view, leave its modal event loop" |
|
349 |
||
2579 | 350 |
|masterGroup| |
351 |
||
2574 | 352 |
windowGroup notNil ifTrue:[ |
2579 | 353 |
masterGroup := windowGroup previousGroup. |
2574 | 354 |
windowGroup removeView:self. |
355 |
windowGroup := nil. |
|
356 |
]. |
|
357 |
self unmap. |
|
358 |
||
359 |
"/ allow for redraw events to arrive |
|
360 |
"/ (actually, only req'd for win32 systems, |
|
361 |
"/ but that short delay does not hurt on others) |
|
362 |
||
2579 | 363 |
"/ Delay waitForSeconds:0.05. |
364 |
masterGroup notNil ifTrue:[ |
|
365 |
" |
|
366 |
this is a kludge for IRIS and others which do not provide backingstore: |
|
367 |
when we hide a modalbox (such as a searchbox) which covered |
|
368 |
a scrollbar, the scrollbars bitblt-method will copy from the |
|
369 |
not-yet redrawn area - effectively clearing the scroller. |
|
370 |
We need a short delay here, since at this time, the expose event has |
|
371 |
not yet arrived. |
|
372 |
" |
|
373 |
Delay waitForSeconds:0.05. |
|
374 |
masterGroup processExposeEvents |
|
375 |
]. |
|
2574 | 376 |
|
377 |
"Modified: / 3.5.1996 / 23:48:22 / stefan" |
|
378 |
"Modified: / 12.9.1998 / 14:58:33 / cg" |
|
379 |
! |
|
380 |
||
0 | 381 |
mapped |
162 | 382 |
"grab the pointer here, when visible (but not control is already lost). |
643 | 383 |
If the grab fails, try again and unmap myself if that fails too." |
0 | 384 |
|
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385 |
|count grabbed| |
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386 |
|
523 | 387 |
mapTime := Time millisecondClockValue. |
388 |
||
0 | 389 |
super mapped. |
162 | 390 |
|
157 | 391 |
(haveControl |
162 | 392 |
and:[true "/ exclusivePointer |
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393 |
and:[realized |
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394 |
and:[self grabWhenMapped]]]) ifTrue:[ |
3088 | 395 |
(self grabPointer) ifFalse:[ |
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396 |
count := 0. |
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397 |
[ |
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398 |
"wait a little bit and try again" |
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|
399 |
Delay waitForSeconds:0.1. |
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400 |
count := count + 1. |
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401 |
] doUntil:[ (grabbed := self grabPointer) or:[count > 4]]. |
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402 |
grabbed ifFalse:[ |
493 | 403 |
"give up" |
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|
404 |
'PopUpView [warning]: could not grab pointer' errorPrintCR. |
643 | 405 |
self unmap |
493 | 406 |
] |
407 |
]. |
|
408 |
exclusivePointer ifFalse:[ |
|
409 |
self releasePointer |
|
410 |
]. |
|
3088 | 411 |
self grabKeyboard. |
493 | 412 |
self getKeyboardFocus |
81 | 413 |
] |
493 | 414 |
|
643 | 415 |
"Modified: 3.5.1996 / 23:48:37 / stefan" |
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416 |
"Modified: 10.1.1997 / 18:00:31 / cg" |
0 | 417 |
! |
418 |
||
419 |
realize |
|
420 |
shadowView notNil ifTrue:[shadowView realize]. |
|
421 |
self raise. |
|
81 | 422 |
haveControl := true. |
3219 | 423 |
|
424 |
"/ device zoom:(device pointerPosition extent:1@1)to:(self bounds) duration:10. |
|
0 | 425 |
super realize. |
426 |
! |
|
427 |
||
643 | 428 |
unmap |
0 | 429 |
haveControl := false. |
1732 | 430 |
|
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|
431 |
self releasePointerAndKeyboard. |
643 | 432 |
super unmap. |
433 |
shadowView notNil ifTrue:[shadowView unmap]. |
|
434 |
||
435 |
"Modified: 3.5.1996 / 23:46:06 / stefan" |
|
0 | 436 |
! ! |
437 |
||
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|
438 |
!PopUpView class methodsFor:'documentation'! |
0 | 439 |
|
269 | 440 |
version |
6270 | 441 |
^ '$Header: /cvs/stx/stx/libview/PopUpView.st,v 1.62 2014-02-18 15:05:32 stefan Exp $' |
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|
442 |
! |
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|
443 |
|
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444 |
version_CVS |
6270 | 445 |
^ '$Header: /cvs/stx/stx/libview/PopUpView.st,v 1.62 2014-02-18 15:05:32 stefan Exp $' |
157 | 446 |
! ! |
6086 | 447 |