From 9f8b6228d141bbfce93c24c359ae4f2824ddcda0 Mon Sep 17 00:00:00 2001
From: lecoanet
Date: Fri, 20 Feb 2004 15:46:38 +0000
Subject: Change most keyborad bindings to make it more intuitive. Added a
 delete item command. Swap axis works also in the X direction. Fixed a bug
 preventing update of the compose* toggles buttons when changing items.

---
 demos/transforms.tcl | 73 ++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 51 insertions(+), 22 deletions(-)

diff --git a/demos/transforms.tcl b/demos/transforms.tcl
index be0273e..3c6f5b6 100644
--- a/demos/transforms.tcl
+++ b/demos/transforms.tcl
@@ -35,16 +35,18 @@ pack $w.text -expand yes -fill x
 
 $w.text insert 0.0 {Items are always added to the current group.
 The available commands are:
-   Button 1       on the background, add an item with initial translation
-   Button 2       on the background, add a group with initial translation
-   Button 1       on item/group axes, select/deselect that item space
-   Drag Button 1  on item/group axes, translate that item space
-   Del            reset the transformation
-   Shift-Del      reset a group direct children transformations
-   PageUp/Down    scale up/down
-   End/Home       rotate right/left
-   Ins            swap the Y axis
-   4 arrows       translate in the 4 directions}
+   Button 1         on the background, add an item with initial translation
+   Button 2         on the background, add a group with initial translation
+   Button 1         on item/group axes, select/deselect that item coordinates
+   Drag Button 1    on item/group axes, translate that item coordinates
+   Home             reset the transformation
+   Shift-Home       reset a group direct children transformations
+   +/-              scale the selected item up/down
+   Ctrl-Left/Right  rotate the selected item right/left
+   Shift-Up/Down    swap the selected item Y axis
+   Shift-Left/Right swap the selected item X axis
+   4 arrows         translate in the 4 directions
+   Delete           destroy the selected item}
 $w.text configure -state disabled
 
 ###########################################
@@ -59,7 +61,7 @@ pack $w.zinc -expand y -fill both
 
 set top 1
 
-set inactiveAxisColor black
+set inactiveAxisColor blue
 set activeAxisColor red
 set worldAxisColor \#a5a5a5
 
@@ -116,13 +118,19 @@ bind $w.zinc <Up> moveUp
 bind $w.zinc <Left> moveLeft
 bind $w.zinc <Right> moveRight
 bind $w.zinc <Down> moveDown
-bind $w.zinc <Next> scaleDown
-bind $w.zinc <Prior> scaleUp
-bind $w.zinc <Delete> reset
-bind $w.zinc <Shift-Delete> resetChildren
-bind $w.zinc <End> rotateLeft
-bind $w.zinc <Home> rotateRight
-bind $w.zinc <Insert> swapAxis
+bind $w.zinc <minus> scaleDown
+bind $w.zinc <KP_Subtract> scaleDown
+bind $w.zinc <plus> scaleUp
+bind $w.zinc <KP_Add> scaleUp
+bind $w.zinc <Home> reset
+bind $w.zinc <Shift-Home> resetChildren
+bind $w.zinc <Control-Left> rotateLeft
+bind $w.zinc <Control-Right> rotateRight
+bind $w.zinc <Shift-Up> {swapAxis y}
+bind $w.zinc <Shift-Down> {swapAxis y}
+bind $w.zinc <Shift-Left> {swapAxis x}
+bind $w.zinc <Shift-Right> {swapAxis x}
+bind $w.zinc <Delete> deleteItem
 
 bind $w.zinc <Configure> "resize %w %h"
 
@@ -142,12 +150,19 @@ proc resize {width height} {
     $w.zinc translate "axis:$world" $x $y
 }
 
-proc swapAxis {} {
+proc swapAxis {axis} {
     global w currentItem
 
+    set sx 1
+    set sy 1
+    if { $axis eq "x" } {
+	set sx -1
+    } elseif { $axis eq "y" } {
+	set sy -1
+    }
     if {$currentItem != 0} {
-	$w.zinc scale $currentitem 1 -1
-	$w.zinc scale "axisgrp:$currentItem" 1 -1
+	$w.zinc scale $currentItem $sx $sy
+	$w.zinc scale "axisgrp:$currentItem" $sx $sy
     }
 }
 
@@ -169,6 +184,19 @@ proc toggleComposeScale {} {
     }
 }
 
+proc deleteItem {} {
+    global w currentItem currentGroup world
+
+    if {$currentItem != 0} {
+	$w.zinc remove $currentItem
+	$w.zinc remove axisgrp:$currentItem
+	if { $currentGroup == $currentItem } {
+	    set currentGroup $world
+	}
+	set currentItem 0
+    }
+}
+
 proc dragItem {x y} {
     global w drag currentItem
 
@@ -198,6 +226,7 @@ proc select {} {
 
 proc changeItem {item} {
     global w currentItem currentGroup
+    global composeRot composeScale
     global drag activeAxisColor inactiveAxisColor
 
     if {($currentItem != 0) && !$drag} {
@@ -260,7 +289,7 @@ proc resetChildren {} {
     global w currentItem
 
     if {($currentItem != 0) && ([$w.zinc type $currentItem] == "group")} {
-	$w.zinc addtag rt withtag all $currentItem 0
+	$w.zinc addtag rt withtag .$currentItem.
 	$w.zinc treset rt
 	$w.zinc dtag rt rt
     }
-- 
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