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506 lines
13 KiB
506 lines
13 KiB
# -*- mode: TCL; fill-column: 75; tab-width: 8; coding: iso-latin-1-unix -*-
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#
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# $Id: ResizeH.tcl,v 1.3 2001/12/09 05:04:02 idiscovery Exp $
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#
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# ResizeH.tcl --
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#
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# tixResizeHandle: A general purpose "resizing handle"
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# widget. You can use it to resize pictures, widgets, etc. When
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# using it to resize a widget, you can use the "attachwidget"
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# command to attach it to a widget and it will handle all the
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# events for you.
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#
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# Copyright (c) 1993-1999 Ioi Kim Lam.
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# Copyright (c) 2000-2001 Tix Project Group.
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#
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# See the file "license.terms" for information on usage and redistribution
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# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#
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#
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#
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tixWidgetClass tixResizeHandle {
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-classname TixResizeHandle
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-superclass tixVResize
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-method {
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attachwidget detachwidget hide show
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}
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-flag {
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-command -cursorfg -cursorbg -handlesize -hintcolor -hintwidth -x -y
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}
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-configspec {
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{-command command Command ""}
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{-cursorfg cursorFg CursorColor white}
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{-cursorbg cursorBg CursorColor red}
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{-handlesize handleSize HandleSize 6}
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{-hintcolor hintColor HintColor red}
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{-hintwidth hintWidth HintWidth 1}
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{-x x X 0}
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{-y y Y 0}
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}
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}
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proc tixResizeHandle:InitWidgetRec {w} {
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upvar #0 $w data
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tixChainMethod $w InitWidgetRec
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set data(shown) 0
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set data(widget) ""
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}
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proc tixResizeHandle:ConstructWidget {w} {
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upvar #0 $w data
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tixChainMethod $w ConstructWidget
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# Create the hints
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#
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set data(w_ht) $w:tix_priv_ht
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set data(w_hb) $w:tix_priv_hb
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set data(w_hl) $w:tix_priv_hl
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set data(w_hr) $w:tix_priv_hr
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frame $data(w_ht) -height $data(-hintwidth) -bg $data(-background)
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frame $data(w_hb) -height $data(-hintwidth) -bg $data(-background)
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frame $data(w_hl) -width $data(-hintwidth) -bg $data(-background)
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frame $data(w_hr) -width $data(-hintwidth) -bg $data(-background)
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# Create the corner resize handles
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#
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set data(w_r00) $w
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# Windows don't like this
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# $data(rootCmd) config\
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# -cursor "top_left_corner $data(-cursorbg) $data(-cursorfg)"
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$data(rootCmd) config -cursor top_left_corner
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set data(w_r01) $w:tix_priv_01
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set data(w_r10) $w:tix_priv_10
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set data(w_r11) $w:tix_priv_11
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frame $data(w_r01) -relief $data(-relief) -bd $data(-borderwidth) \
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-cursor "bottom_left_corner"\
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-bg $data(-background)
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frame $data(w_r10) -relief $data(-relief) -bd $data(-borderwidth) \
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-cursor "top_right_corner"\
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-bg $data(-background)
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frame $data(w_r11) -relief $data(-relief) -bd $data(-borderwidth) \
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-cursor "bottom_right_corner"\
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-bg $data(-background)
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# Create the border resize handles
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#
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set data(w_bt) $w:tix_priv_bt
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set data(w_bb) $w:tix_priv_bb
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set data(w_bl) $w:tix_priv_bl
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set data(w_br) $w:tix_priv_br
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frame $data(w_bt) -relief $data(-relief) -bd $data(-borderwidth) \
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-cursor "top_side"\
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-bg $data(-background)
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frame $data(w_bb) -relief $data(-relief) -bd $data(-borderwidth) \
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-cursor "bottom_side"\
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-bg $data(-background)
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frame $data(w_bl) -relief $data(-relief) -bd $data(-borderwidth) \
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-cursor "left_side"\
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-bg $data(-background)
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frame $data(w_br) -relief $data(-relief) -bd $data(-borderwidth) \
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-cursor "right_side"\
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-bg $data(-background)
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}
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proc tixResizeHandle:SetBindings {w} {
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upvar #0 $w data
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tixChainMethod $w SetBindings
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bind $data(w_r00) <1> \
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"tixResizeHandle:dragstart $w $data(w_r00) 1 %X %Y {1 1 -1 -1}"
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bind $data(w_r01) <1> \
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"tixResizeHandle:dragstart $w $data(w_r01) 1 %X %Y {1 0 -1 1}"
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bind $data(w_r10) <1> \
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"tixResizeHandle:dragstart $w $data(w_r10) 1 %X %Y {0 1 1 -1}"
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bind $data(w_r11) <1> \
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"tixResizeHandle:dragstart $w $data(w_r11) 1 %X %Y {0 0 1 1}"
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bind $data(w_bt) <1> \
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"tixResizeHandle:dragstart $w $data(w_bt) 1 %X %Y {0 1 0 -1}"
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bind $data(w_bb) <1> \
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"tixResizeHandle:dragstart $w $data(w_bb) 1 %X %Y {0 0 0 1}"
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bind $data(w_bl) <1> \
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"tixResizeHandle:dragstart $w $data(w_bl) 1 %X %Y {1 0 -1 0}"
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bind $data(w_br) <1> \
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"tixResizeHandle:dragstart $w $data(w_br) 1 %X %Y {0 0 1 0}"
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foreach win [list \
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$data(w_r00)\
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$data(w_r01)\
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$data(w_r10)\
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$data(w_r11)\
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$data(w_bt)\
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$data(w_bb)\
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$data(w_bl)\
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$data(w_br)\
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] {
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bind $win <B1-Motion> "tixVResize:drag $w %X %Y"
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bind $win <ButtonRelease-1> "tixVResize:dragend $w $win 0 %X %Y"
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bind $win <Any-Escape> "tixVResize:dragend $w $win 1 0 0"
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}
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}
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#----------------------------------------------------------------------
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# Config Methods
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#----------------------------------------------------------------------
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proc tixResizeHandle:config-width {w value} {
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tixWidgetDoWhenIdle tixResizeHandle:ComposeWindow $w
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}
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proc tixResizeHandle:config-height {w value} {
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tixWidgetDoWhenIdle tixResizeHandle:ComposeWindow $w
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}
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proc tixResizeHandle:config-x {w value} {
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tixWidgetDoWhenIdle tixResizeHandle:ComposeWindow $w
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}
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proc tixResizeHandle:config-y {w value} {
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tixWidgetDoWhenIdle tixResizeHandle:ComposeWindow $w
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}
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#----------------------------------------------------------------------
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# Public Methods
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#----------------------------------------------------------------------
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proc tixResizeHandle:dragstart {w win depress rootx rooty mrect} {
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upvar #0 $w data
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set wx $data(-x)
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set wy $data(-y)
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set ww $data(-width)
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set wh $data(-height)
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tixVResize:dragstart $w $win $depress $rootx $rooty \
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[list $wx $wy $ww $wh] $mrect
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}
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# tixDeleteBindTag --
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#
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# Delete the bindtag(s) in the args list from the bindtags of the widget
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#
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proc tixDeleteBindTag {w args} {
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if {![winfo exists $w]} {
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return
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}
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set newtags ""
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foreach tag [bindtags $w] {
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if {[lsearch $args $tag] == -1} {
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lappend newtags $tag
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}
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}
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bindtags $w $newtags
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}
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proc tixAddBindTag {w args} {
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bindtags $w [concat [bindtags $w] $args]
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}
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proc tixResizeHandle:attachwidget {w widget args} {
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upvar #0 $w data
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set opt(-move) 0
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tixHandleOptions opt {-move} $args
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if {$data(widget) != ""} {
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tixDeleteBindTag $data(widget) TixResizeHandleTag:$w
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}
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set data(widget) $widget
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if {$data(widget) != ""} {
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# Just in case TixResizeHandleTag was already there
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tixDeleteBindTag $data(widget) TixResizeHandleTag:$w
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tixAddBindTag $data(widget) TixResizeHandleTag:$w
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set data(-x) [winfo x $data(widget)]
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set data(-y) [winfo y $data(widget)]
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set data(-width) [winfo width $data(widget)]
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set data(-height) [winfo height $data(widget)]
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tixResizeHandle:show $w
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tixResizeHandle:ComposeWindow $w
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# Now set the bindings
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#
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if {$opt(-move)} {
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bind TixResizeHandleTag:$w <1> \
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"tixResizeHandle:Attach $w %X %Y"
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bind TixResizeHandleTag:$w <B1-Motion> \
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"tixResizeHandle:BMotion $w %X %Y"
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bind TixResizeHandleTag:$w <Any-Escape> \
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"tixResizeHandle:BRelease $w 1 %X %Y"
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bind TixResizeHandleTag:$w <ButtonRelease-1>\
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"tixResizeHandle:BRelease $w 0 %X %Y"
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} else {
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# if "move" is false, then the widget won't be moved as a whole --
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# ResizeHandle will only move its sides
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bind TixResizeHandleTag:$w <1> {;}
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bind TixResizeHandleTag:$w <B1-Motion> {;}
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bind TixResizeHandleTag:$w <Any-Escape> {;}
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bind TixResizeHandleTag:$w <ButtonRelease-1> {;}
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}
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}
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}
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proc tixResizeHandle:detachwidget {w} {
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upvar #0 $w data
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if {$data(widget) != ""} {
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tixDeleteBindTag $data(widget) TixResizeHandleTag:$w
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}
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tixResizeHandle:hide $w
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}
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proc tixResizeHandle:show {w} {
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upvar #0 $w data
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set data(shown) 1
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raise $data(w_ht)
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raise $data(w_hb)
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raise $data(w_hl)
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raise $data(w_hr)
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raise $data(w_r00)
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raise $data(w_r01)
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raise $data(w_r10)
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raise $data(w_r11)
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raise $data(w_bt)
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raise $data(w_bb)
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raise $data(w_bl)
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raise $data(w_br)
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# tixCancleIdleTask tixResizeHandle:ComposeWindow $w
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tixResizeHandle:ComposeWindow $w
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}
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proc tixResizeHandle:hide {w} {
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upvar #0 $w data
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if {!$data(shown)} {
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return
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}
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set data(shown) 0
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place forget $data(w_r00)
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place forget $data(w_r01)
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place forget $data(w_r10)
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place forget $data(w_r11)
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place forget $data(w_bt)
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place forget $data(w_bb)
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place forget $data(w_bl)
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place forget $data(w_br)
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place forget $data(w_ht)
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place forget $data(w_hb)
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place forget $data(w_hl)
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place forget $data(w_hr)
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}
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proc tixResizeHandle:Destructor {w} {
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upvar #0 $w data
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if {$data(widget) != ""} {
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tixDeleteBindTag $data(widget) TixResizeHandleTag:$w
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}
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catch {destroy $data(w_r01)}
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catch {destroy $data(w_r10)}
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catch {destroy $data(w_r11)}
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catch {destroy $data(w_bt)}
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catch {destroy $data(w_bb)}
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catch {destroy $data(w_bl)}
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catch {destroy $data(w_br)}
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catch {destroy $data(w_ht)}
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catch {destroy $data(w_hb)}
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catch {destroy $data(w_hl)}
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catch {destroy $data(w_hr)}
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tixChainMethod $w Destructor
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}
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#----------------------------------------------------------------------
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# Private Methods Dealing With Attached Widgets
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#----------------------------------------------------------------------
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proc tixResizeHandle:Attach {w rx ry} {
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upvar #0 $w data
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tixResizeHandle:dragstart $w $data(widget) 0 $rx $ry {1 1 0 0}
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}
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proc tixResizeHandle:BMotion {w rx ry} {
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tixVResize:drag $w $rx $ry
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}
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proc tixResizeHandle:BRelease {w isAbort rx ry} {
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upvar #0 $w data
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tixVResize:dragend $w $data(widget) $isAbort $rx $ry
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}
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#----------------------------------------------------------------------
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# Private Methods
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#----------------------------------------------------------------------
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proc tixResizeHandle:DrawTmpLines {w} {
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upvar #0 $w data
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# I've seen this error - mike
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if {![info exists data(hf:x1)]} {return}
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set x1 $data(hf:x1)
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if {![info exists data(hf:y1)]} {return}
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set y1 $data(hf:y1)
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if {![info exists data(hf:x2)]} {return}
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set x2 $data(hf:x2)
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if {![info exists data(hf:y2)]} {return}
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set y2 $data(hf:y2)
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tixTmpLine $x1 $y1 $x2 $y1 $w
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tixTmpLine $x1 $y2 $x2 $y2 $w
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tixTmpLine $x1 $y1 $x1 $y2 $w
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tixTmpLine $x2 $y1 $x2 $y2 $w
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}
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# Place the hint frame to indicate the changes
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#
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proc tixResizeHandle:SetHintFrame {w x1 y1 width height} {
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upvar #0 $w data
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# The four sides of the window
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#
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set x2 [expr "$x1+$width"]
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set y2 [expr "$y1+$height"]
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set rx [winfo rootx [winfo parent $w]]
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set ry [winfo rooty [winfo parent $w]]
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incr x1 $rx
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incr y1 $ry
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incr x2 $rx
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incr y2 $ry
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if {[info exists data(hf:x1)]} {
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tixResizeHandle:DrawTmpLines $w
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}
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set data(hf:x1) $x1
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set data(hf:y1) $y1
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set data(hf:x2) $x2
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set data(hf:y2) $y2
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tixResizeHandle:DrawTmpLines $w
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}
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proc tixResizeHandle:ShowHintFrame {w} {
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upvar #0 $w data
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place forget $data(w_ht)
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place forget $data(w_hb)
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place forget $data(w_hl)
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place forget $data(w_hr)
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update
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}
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proc tixResizeHandle:HideHintFrame {w} {
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upvar #0 $w data
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tixResizeHandle:DrawTmpLines $w
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unset data(hf:x1)
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unset data(hf:y1)
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unset data(hf:x2)
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unset data(hf:y2)
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}
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proc tixResizeHandle:UpdateSize {w x y width height} {
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upvar #0 $w data
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set data(-x) $x
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set data(-y) $y
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set data(-width) $width
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set data(-height) $height
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tixResizeHandle:ComposeWindow $w
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if {$data(widget) != ""} {
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place $data(widget) -x $x -y $y -width $width -height $height
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}
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if {$data(-command) != ""} {
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eval $data(-command) $x $y $width $height
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}
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}
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proc tixResizeHandle:ComposeWindow {w} {
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upvar #0 $w data
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set px $data(-x)
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set py $data(-y)
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set pw $data(-width)
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set ph $data(-height)
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# Show the hint frames
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#
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set x1 $px
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set y1 $py
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set x2 [expr "$px+$pw"]
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set y2 [expr "$py+$ph"]
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place $data(w_ht) -x $x1 -y $y1 -width $pw -bordermode outside
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place $data(w_hb) -x $x1 -y $y2 -width $pw -bordermode outside
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place $data(w_hl) -x $x1 -y $y1 -height $ph -bordermode outside
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place $data(w_hr) -x $x2 -y $y1 -height $ph -bordermode outside
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# Set the four corner resize handles
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#
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set sz_2 [expr $data(-handlesize)/2]
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set x1 [expr "$px - $sz_2"]
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set y1 [expr "$py - $sz_2"]
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set x2 [expr "$px - $sz_2" + $pw]
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set y2 [expr "$py - $sz_2" + $ph]
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place $data(w_r00) -x $x1 -y $y1 \
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-width $data(-handlesize) -height $data(-handlesize)
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place $data(w_r01) -x $x1 -y $y2\
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-width $data(-handlesize) -height $data(-handlesize)
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place $data(w_r10) -x $x2 -y $y1\
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-width $data(-handlesize) -height $data(-handlesize)
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place $data(w_r11) -x $x2 -y $y2\
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-width $data(-handlesize) -height $data(-handlesize)
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# Set the four border resize handles
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#
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set mx [expr "$px + $pw/2 - $sz_2"]
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set my [expr "$py + $ph/2 - $sz_2"]
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place $data(w_bt) -x $mx -y $y1 \
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-width $data(-handlesize) -height $data(-handlesize)
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place $data(w_bb) -x $mx -y $y2 \
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-width $data(-handlesize) -height $data(-handlesize)
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place $data(w_bl) -x $x1 -y $my \
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-width $data(-handlesize) -height $data(-handlesize)
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place $data(w_br) -x $x2 -y $my \
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-width $data(-handlesize) -height $data(-handlesize)
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}
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