David, thanks a lot for the quick reply...
How will that help your use case of the dock?
You control the containment in a panel, but you're not changing
Panel.qml itself.
Everything should be exposed to the client already as the "user
setting its value" is just the panel config, another QML file with
access to the same panelview properties as panel does.
In terms of Panel dimensions we refer to thickness and length.
When the panel is at the top or bottom of the screen, thickness is
height and length is width. When the panel is on the left or right
side, it's the opposite.
Thickness is self-explanatory
Length can be confusing:
- length should be the implicit size of the contents of the panel
containment want to be.
- min/max length are the
panelview will set the panel to length, but constrained to min/max
length and then also bound to the size of the screen.
David, the Panel.qml file as I have understood it, is a layer between
the panelview (c++ code) and the client (qml) implementation.
From my dock I can not find any way to alter the the panel's thickness
(the Layout.preferredHeight which corrresponds in some
cases to thickness (horizontal) is not exposed). I need it because the
user can set the icon size and the zoomfactor for the hovering
animation, these two are used to calculate the thickness which is needed
in order to not have animations that are not shown. Currently
the user must try to set the optimal thickness manually....
What I tried yesterday and it worked is the following, I added in
Panel.qml the following but I dont know if this is going to be accepted in
the plasma source code:
.......
property Item panelClient
.......
onContainmentChanged: {
if (!containment) {
return;
}
containment.parent = containmentParent;
containment.visible = true;
containment.anchors.fill = containmentParent;
containment.locationChanged.connect(adjustPrefix);
adjustPrefix();
if (containment.children[0]) { //////With this I
access the client's panel implementation
panelClient = containment.children[0]
}
}
........
//// If the client's panel implementation has set a thickness
variable then this binding is activated
//// e.g. property int thickness (for the client code)
Binding {
target: panel
property: "thickness"
when: panelClient && panelClient.thickness!==undefined
value: {
if (!panelClient || !panelClient.thickness) {
return;
}
return panelClient.thickness;
}
}
.........
3. "Real" Panel Transparency
Docks are panels that not only have a visual transparent
background but also they pass the mouse events to go underneath
their transparent areas. This is also the way Plank is doing it.
It creates a big window that for the transparent background leaves
all the mouse events go underneath. I believe plasma panels are Qt
windows managed from KWin, I think Qt is offering this feature by
setting some flags for the window. Do you have any ideas for this?
Plasma panels are just normal windows, so a mask could be set. Would
have to be on the C++ side in panelview
I have already the c++ code for this and I am using it!!! :) I have set
a QRect maskArea for panelview which can be set
and it works !!! :). I am sending from my dock the correct maskArea and
everything works ok... but, in order to achieve
the communication between my implementation and the panelview I added in
the Panel.qml the following:
....
//// If the client's panel implementation has set a maskArea
variable then this binding is activated
//// e.g. property rect mouseArea (for the client code)
Binding {
target: panel
property: "maskArea"
when: panelClient && panelClient.maskArea!==undefined
value: {
if (!panelClient || !panelClient.maskArea) {
return;
}
return panelClient.maskArea;
}
}
.....
what do you think?
