diff options
Diffstat (limited to 'demos/simple_target.tcl')
-rw-r--r-- | demos/simple_target.tcl | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/demos/simple_target.tcl b/demos/simple_target.tcl new file mode 100644 index 0000000..341cac2 --- /dev/null +++ b/demos/simple_target.tcl @@ -0,0 +1,58 @@ +package require tkdnd
+catch {console show}
+
+pack [ttk::button .drop_target -text " Drop Target (I can accept anything!) "] \
+ -fill x -padx 20 -pady 20
+
+tkdnd::drop_target register .drop_target *
+
+## Visual feedback:
+bind .drop_target <<DropEnter>> {%W state active}
+bind .drop_target <<DropLeave>> {%W state !active}
+
+## Position events:
+proc handle_position {widget mouse_x mouse_y drag_source_actions buttons} {
+ ## Limit drops to the left half part of the window...
+ set x [winfo rootx $widget]
+ set w [winfo width $widget]
+ set middle [expr {$x + $w / 2.}]
+ if {$mouse_x > $middle} {return refuse_drop}
+ if {"alt" in $buttons && "link" in $drag_source_actions} {
+ return link
+ } elseif {"ctrl" in $buttons && "move" in $drag_source_actions} {
+ return move
+ } elseif {"copy" in $drag_source_actions} {
+ return copy
+ } else {
+ return refuse_drop
+ }
+};# handle_position
+bind .drop_target <<DropPosition>> [list handle_position %W %X %Y %a %b]
+
+## Drop callbacks:
+bind .drop_target <<Drop>> {
+ puts "Generic data drop: \"%D\""
+ %W state !active
+ return %A
+}
+bind .drop_target <<Drop:DND_Text>> {
+ puts "Dropped text: \"%D\""
+ %W state !active
+ return %A
+}
+bind .drop_target <<Drop:DND_Files>> {
+ puts "Dropped files: \"[join %D {, }]\""
+ %W state !active
+ return %A
+}
+bind .drop_target <<Drop:DND_HTML>> {
+ puts "Dropped HTML: \"[join %D {, }]\""
+ %W state !active
+ return %A
+}
+bind .drop_target <<Drop:DND_Color>> {
+ puts "Dropped color: \"%D\""
+ %W state !active
+ return %A
+}
+
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