author | Claus Gittinger <cg@exept.de> |
Mon, 06 Sep 1999 14:57:31 +0200 | |
changeset 2005 | 9b1ff373a8ad |
parent 1871 | a6b15bdfcc92 |
child 2159 | 2864c0de7f33 |
permissions | -rw-r--r-- |
104 | 1 |
" |
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COPYRIGHT (c) 1995 by Claus Gittinger |
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All Rights Reserved |
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||
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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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Controller subclass:#VariablePanelController |
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instanceVariableNames:'movedHandle prevPos startPos clickPos' |
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classVariableNames:'' |
582 | 16 |
poolDictionaries:'' |
17 |
category:'Interface-Support-Controllers' |
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104 | 18 |
! |
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20 |
!VariablePanelController class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1995 by Claus Gittinger |
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All Rights Reserved |
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||
27 |
This software is furnished under a license and may be used |
|
28 |
only in accordance with the terms of that license and with the |
|
29 |
inclusion of the above copyright notice. This software may not |
|
30 |
be provided or otherwise made available to, or used by, any |
|
31 |
other person. No title to or ownership of the software is |
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32 |
hereby transferred. |
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" |
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! |
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||
150 | 36 |
documentation |
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" |
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An abstract class for variablePanel controllers; |
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normally, not used directly by applications, these are created automatically |
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whenever a variablePanel is created. |
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Instances are responsible for tracking the mouse pointer and resize the |
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views (a panel) subviews as appropriate. |
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582 | 43 |
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[author:] |
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Claus Gittinger |
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150 | 46 |
" |
104 | 47 |
! ! |
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||
1720 | 49 |
!VariablePanelController class methodsFor:'defaults'! |
50 |
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1722 | 51 |
opaqueResize |
52 |
"return the sopaque-resizing flag setting. |
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If off (the default), the resizing takes place at the end of |
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the handle move operation (when the mouse button is released). |
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If on, the resizing is syncronous with the move. |
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On slow machines, it may make sense to leave it off." |
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||
2005
9b1ff373a8ad
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self obsoleteMethodWarning. |
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^ UserPreferences current opaqueVariablePanelResizing |
1722 | 60 |
! |
61 |
||
1720 | 62 |
opaqueResize:aBoolean |
63 |
"set/clear opaque-resizing. |
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If off (the default), the resizing takes place at the end of |
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the handle move operation (when the mouse button is released). |
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If on, the resizing is syncronous with the move. |
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On slow machines, it may make sense to leave it off." |
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||
2005
9b1ff373a8ad
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parents:
1871
diff
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|
69 |
self obsoleteMethodWarning. |
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^ UserPreferences current opaqueVariablePanelResizing:aBoolean |
1720 | 71 |
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" |
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self opaqueResize:true |
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self opaqueResize:false |
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" |
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"Modified: / 13.11.1998 / 15:16:37 / cg" |
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! ! |
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104 | 80 |
!VariablePanelController methodsFor:'event handling'! |
81 |
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161 | 82 |
buttonMotion:state x:bx y:by |
104 | 83 |
"mouse-button was moved while pressed; |
84 |
clear prev handleBar and draw handle bar at new position" |
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||
131 | 86 |
|pos limitMin limitMax subViews barHeight |
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oldHx oldHy newHx newHy opaque| |
104 | 88 |
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movedHandle isNil ifTrue: [^ self]. "should not happen" |
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"speedup - if there is already another movement, |
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ignore thisone ... " |
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"/ view buttonMotionEventPending ifTrue:[^ self]. |
104 | 95 |
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subViews := view subViews. |
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barHeight := view barHeight. |
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99 |
view orientation ~~ #vertical ifTrue:[ |
1720 | 100 |
pos := bx - startPos. |
101 |
" |
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102 |
the two lines below will not allow resizing down to zero |
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(so that some is always visible) |
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" |
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104 | 105 |
"/ limitMin := barHeight // 2. |
106 |
"/ limitMax := view width - barHeight. |
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1720 | 107 |
" |
108 |
these allow resizing to zero - which is better ? |
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" |
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limitMin := 0. |
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limitMax := view innerWidth. |
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104 | 112 |
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1720 | 113 |
movedHandle > 1 ifTrue:[ |
114 |
limitMin := (subViews at:movedHandle) origin x + (barHeight // 2) |
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]. |
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movedHandle < (subViews size - 1) ifTrue:[ |
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limitMax := (subViews at:(movedHandle + 2)) origin x - barHeight |
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]. |
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104 | 119 |
] ifFalse:[ |
1720 | 120 |
pos := by - startPos. |
121 |
" |
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the two lines below will not allow resizing down to zero |
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(so that some is always visible) |
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124 |
" |
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104 | 125 |
"/ limitMin := barHeight // 2. |
126 |
"/ limitMax := view height - barHeight. |
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1720 | 127 |
" |
128 |
these allow resizing to zero - which is better ? |
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129 |
" |
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130 |
limitMin := 0. |
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limitMax := view innerHeight. |
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104 | 132 |
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1720 | 133 |
movedHandle > 1 ifTrue:[ |
134 |
limitMin := (subViews at:movedHandle) origin y + (barHeight // 2) |
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]. |
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movedHandle < (subViews size - 1) ifTrue:[ |
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limitMax := (subViews at:(movedHandle + 2)) origin y - barHeight |
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]. |
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104 | 139 |
]. |
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limitMax := limitMax - barHeight. |
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(pos < limitMin) ifTrue:[ "check against view limits" |
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1720 | 143 |
pos := limitMin |
104 | 144 |
] ifFalse:[ |
1720 | 145 |
(pos > limitMax) ifTrue:[ |
146 |
pos := limitMax |
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] |
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104 | 148 |
]. |
149 |
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prevPos == pos ifTrue:[^ self]. |
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check for any change before moving handle (tiny optimization)
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151 |
|
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check for any change before moving handle (tiny optimization)
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parents:
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diff
changeset
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152 |
view orientation ~~ #vertical ifTrue:[ |
1720 | 153 |
oldHx := prevPos. |
154 |
newHx := pos. |
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oldHy := newHy := 0. |
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104 | 156 |
] ifFalse:[ |
1720 | 157 |
oldHy := prevPos. |
158 |
newHy := pos. |
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oldHx := newHx := 0. |
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]. |
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161 |
||
2005
9b1ff373a8ad
moved opaqueResize setting to userPreferences
Claus Gittinger <cg@exept.de>
parents:
1871
diff
changeset
|
162 |
opaque := UserPreferences current opaqueVariablePanelResizing. |
9b1ff373a8ad
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parents:
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diff
changeset
|
163 |
opaque ~~ true ifTrue:[ |
1720 | 164 |
view invertHandleBarAtX:oldHx y:oldHy. |
165 |
view invertHandleBarAtX:newHx y:newHy. |
|
104 | 166 |
]. |
1720 | 167 |
prevPos := pos. |
131 | 168 |
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parents:
1871
diff
changeset
|
169 |
opaque == true ifTrue:[ |
1871 | 170 |
self doResizeForX:bx y:by. |
1720 | 171 |
] |
172 |
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173 |
"Modified: / 13.11.1998 / 15:13:47 / cg" |
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104 | 174 |
! |
175 |
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200 | 176 |
buttonPress:button x:bx y:by |
177 |
"button was pressed - if it hits a handle, start move" |
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parents:
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|handle barHeight group isHorizontal| |
200 | 180 |
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((button == 1) or:[button == #select]) ifTrue:[ |
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872 | 182 |
handle := 1. |
183 |
barHeight := view barHeight. |
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200 | 184 |
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parents:
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isHorizontal := view orientation ~~ #vertical. |
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parents:
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186 |
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872 | 187 |
" |
188 |
search the handle, invert the first time |
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" |
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view handleOriginsWithIndexDo:[:hPoint :hIndex | |
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|hx hy thatsTheHandle| |
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parents:
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|
193 |
thatsTheHandle := false. |
200 | 194 |
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3013631d4384
do nothing if pointer was never moved;
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parents:
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diff
changeset
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195 |
isHorizontal ifTrue:[ |
872 | 196 |
hx := hPoint x. |
1626
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parents:
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diff
changeset
|
197 |
hy := 0. |
1333 | 198 |
(bx between:(hx - barHeight) and:(hx + barHeight)) ifTrue:[ |
872 | 199 |
prevPos := hx. |
200 |
startPos := bx - hx. |
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do nothing if pointer was never moved;
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parents:
1483
diff
changeset
|
201 |
thatsTheHandle := true. |
872 | 202 |
]. |
203 |
] ifFalse:[ |
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3013631d4384
do nothing if pointer was never moved;
Claus Gittinger <cg@exept.de>
parents:
1483
diff
changeset
|
204 |
hx := 0. |
872 | 205 |
hy := hPoint y. |
1333 | 206 |
(by between:(hy - barHeight) and:(hy + barHeight)) ifTrue:[ |
872 | 207 |
prevPos := hy. |
208 |
startPos := by - hy. |
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1626
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do nothing if pointer was never moved;
Claus Gittinger <cg@exept.de>
parents:
1483
diff
changeset
|
209 |
thatsTheHandle := true. |
872 | 210 |
]. |
211 |
]. |
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parents:
1483
diff
changeset
|
212 |
|
3013631d4384
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parents:
1483
diff
changeset
|
213 |
thatsTheHandle ifTrue:[ |
3013631d4384
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parents:
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diff
changeset
|
214 |
movedHandle := handle. |
1720 | 215 |
|
2005
9b1ff373a8ad
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parents:
1871
diff
changeset
|
216 |
UserPreferences current opaqueVariablePanelResizing == true ifTrue:[ |
1871 | 217 |
view grabPointerWithCursor:view cursor. |
2005
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parents:
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diff
changeset
|
218 |
] ifFalse:[ |
1871 | 219 |
view invertHandleBarAtX:hx y:hy. |
220 |
(group := view windowGroup) notNil ifTrue:[ |
|
221 |
group showCursor:view cursor |
|
222 |
]. |
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|
223 |
]. |
1871 | 224 |
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parents:
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diff
changeset
|
225 |
clickPos := bx @ by. |
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parents:
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226 |
^ self |
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diff
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|
227 |
]. |
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parents:
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diff
changeset
|
228 |
|
872 | 229 |
handle := handle + 1 |
230 |
]. |
|
231 |
movedHandle := nil |
|
200 | 232 |
] ifFalse:[ |
872 | 233 |
super buttonPress:button x:bx y:by |
200 | 234 |
] |
1333 | 235 |
|
1720 | 236 |
"Modified: / 13.11.1998 / 15:18:10 / cg" |
200 | 237 |
! |
238 |
||
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parents:
1483
diff
changeset
|
239 |
buttonRelease:button x:bx y:by |
104 | 240 |
"end bar-move" |
241 |
||
1871 | 242 |
|group| |
243 |
||
244 |
((button == 1) or:[button == #select]) ifTrue:[ |
|
245 |
movedHandle isNil ifTrue:[^ self]. |
|
246 |
||
247 |
view ungrabPointer. |
|
2005
9b1ff373a8ad
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parents:
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diff
changeset
|
248 |
UserPreferences current opaqueVariablePanelResizing ~~ true ifTrue:[ |
1871 | 249 |
(group := view windowGroup) notNil ifTrue:[ |
250 |
group restoreCursors |
|
251 |
] |
|
252 |
]. |
|
253 |
||
254 |
self doResizeForX:bx y:by. |
|
255 |
movedHandle := nil. |
|
256 |
||
257 |
] ifFalse:[ |
|
258 |
super buttonRelease:button x:bx y:by |
|
259 |
] |
|
260 |
||
261 |
"Modified: / 11.3.1999 / 16:31:29 / cg" |
|
262 |
! |
|
263 |
||
264 |
doResizeForX:bx y:by |
|
265 |
"end bar-move" |
|
266 |
||
104 | 267 |
|aboveView belowView aboveIndex belowIndex |
131 | 268 |
newPos oldPos group subViews |
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parents:
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diff
changeset
|
269 |
relCornerAbove fromIndex toIndex |
3013631d4384
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parents:
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diff
changeset
|
270 |
hX hY isHorizontal newCorner newOrigin| |
104 | 271 |
|
1871 | 272 |
isHorizontal := view orientation ~~ #vertical. |
104 | 273 |
|
1871 | 274 |
"undo the last invert" |
104 | 275 |
|
1871 | 276 |
isHorizontal ifTrue:[ |
277 |
hX := prevPos. hY := 0. |
|
278 |
] ifFalse:[ |
|
279 |
hX := 0. hY := prevPos. |
|
280 |
]. |
|
2005
9b1ff373a8ad
moved opaqueResize setting to userPreferences
Claus Gittinger <cg@exept.de>
parents:
1871
diff
changeset
|
281 |
UserPreferences current opaqueVariablePanelResizing ~~ true ifTrue:[ |
1871 | 282 |
view invertHandleBarAtX:hX y:hY. |
283 |
]. |
|
104 | 284 |
|
1871 | 285 |
"/ any change ? |
286 |
((isHorizontal and:[bx == clickPos x]) |
|
287 |
or:[isHorizontal not and:[by == clickPos y]]) ifTrue:[ |
|
288 |
^ self. |
|
289 |
]. |
|
104 | 290 |
|
1871 | 291 |
"compute the new relative heights" |
292 |
||
293 |
aboveIndex := movedHandle. |
|
294 |
belowIndex := movedHandle + 1. |
|
295 |
subViews := view subViews. |
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parents:
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diff
changeset
|
296 |
|
1871 | 297 |
aboveView := subViews at:aboveIndex. |
298 |
belowView := subViews at:belowIndex. |
|
104 | 299 |
|
1871 | 300 |
relCornerAbove := aboveView relativeCorner. |
301 |
isHorizontal ifTrue:[ |
|
302 |
oldPos := relCornerAbove x. |
|
303 |
newPos := (prevPos + startPos / view width) asFloat. |
|
304 |
newCorner := newPos @ relCornerAbove y. |
|
305 |
newOrigin := newPos @ belowView relativeOrigin y. |
|
306 |
] ifFalse:[ |
|
307 |
oldPos := relCornerAbove y. |
|
308 |
newPos := (prevPos + startPos / view height) asFloat. |
|
309 |
newCorner := relCornerAbove x @ newPos. |
|
310 |
newOrigin := belowView relativeOrigin x @ newPos. |
|
311 |
]. |
|
312 |
aboveView relativeCorner:newCorner. |
|
313 |
belowView relativeOrigin:newOrigin. |
|
104 | 314 |
|
1871 | 315 |
view lockRedraw. |
1626
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parents:
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diff
changeset
|
316 |
|
1871 | 317 |
oldPos > newPos ifTrue:[ |
318 |
fromIndex := aboveIndex. toIndex := belowIndex. |
|
104 | 319 |
] ifFalse:[ |
1871 | 320 |
fromIndex := belowIndex. toIndex := aboveIndex. |
321 |
]. |
|
322 |
view resizeSubviewsFrom:fromIndex to:toIndex. |
|
323 |
view redrawHandlesFrom:aboveIndex to:belowIndex. |
|
324 |
view unlockRedraw. |
|
1626
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parents:
1483
diff
changeset
|
325 |
|
1785
3103fc945869
fixed leftOver-inverted bar redraw bug
Claus Gittinger <cg@exept.de>
parents:
1722
diff
changeset
|
326 |
"Modified: / 11.3.1999 / 16:31:29 / cg" |
1483 | 327 |
! |
328 |
||
329 |
pointerEnter:state x:x y:y |
|
330 |
state == 0 ifTrue:[ |
|
331 |
movedHandle notNil ifTrue:[self buttonRelease:1 x:x y:y] |
|
332 |
] |
|
333 |
||
334 |
"Created: / 9.4.1998 / 12:34:22 / cg" |
|
335 |
"Modified: / 9.4.1998 / 12:35:05 / cg" |
|
200 | 336 |
! ! |
104 | 337 |
|
203 | 338 |
!VariablePanelController class methodsFor:'documentation'! |
339 |
||
340 |
version |
|
2005
9b1ff373a8ad
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parents:
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diff
changeset
|
341 |
^ '$Header: /cvs/stx/stx/libwidg/VariablePanelController.st,v 1.23 1999-09-06 12:57:31 cg Exp $' |
203 | 342 |
! ! |