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Canvas windows: allow hiding without deletion

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Optionally, allow Canvas windows to persist (and be shown again) when
closed.
This commit is contained in:
James Turner 2022-10-14 09:01:52 +01:00
parent 4fd8092e38
commit 6e8520dbb5
1 changed files with 38 additions and 3 deletions
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41
Nasal/canvas/gui.nas
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@ -79,12 +79,13 @@ var Window = {
# Constructor
#
# @param size ([width, height])
new: func(size, type = nil, id = nil, allowfocus = 1)
new: func(size, type = nil, id = nil, allowfocus = 1, destroy_on_close = 1)
{
var ghost = _newWindowGhost(id);
var m = {
parents: [Window, PropertyElement, ghost],
_allowfocus: allowfocus,
_destroy_on_close: destroy_on_close,
_ghost: ghost,
_node: props.wrapNode(ghost._node_ghost),
_focused: 0,
@ -101,7 +102,11 @@ var Window = {
# TODO better default position
m.move(0,0);
m.setFocus();
if (destroy_on_close) {
m.setFocus();
} else {
m._ghost.hide();
}
# arg = [child, listener_node, mode, is_child_event]
setlistener(m._node, func m._propCallback(arg[0], arg[2]), 0, 2);
@ -293,6 +298,36 @@ var Window = {
me.setFocus();
},
hide: func()
{
me.clearFocus();
me._ghost.hide();
},
show: func()
{
me._ghost.show();
me.raise();
},
# Hide / show the window based on whether it's currently visible
toggle: func()
{
if (me.isVisible()) {
me.hide();
} else {
me.show();
me.raise();
}
},
# function to be executed when the close button is pressed
onClose: func()
{
if (me._destroy_on_close)
{
me.del();
} else {
me.hide();
}
},
onResize: func()
{
if( me['_canvas'] == nil )
@ -492,7 +527,7 @@ var Window = {
var button_close = WindowButton.new(title_bar, "close")
.move(x, y);
button_close.listen("clicked", func me.del());
button_close.listen("clicked", func me.onClose());
# title
var title = me.get("title", "Canvas Dialog");