Commit graph

4 commits

Author SHA1 Message Date
Thomas Lübking
3f33d0c2d5 poll mouse at 20Hz
required until there's a dynamic poll rate, because 10Hz is too
low for magnifiers (lag), mousemark (paints too edgy), mouseclick
(often fails because it's easy to cycle the button state within 100ms)
- and the bouncing icon lags behind the mouse as well ;-)

REVIEW: 111909
2013-08-06 23:06:40 +02:00
Martin Gräßlin
8b2a5f9936 Support for cursor change tracking in KWin::Cursor
KWin::Cursor can track changes to the cursor image. It supports a
start/stop tracking to not handle these events if nobody is interested in
them. When enabled and the cursor image changes a signal is emitted with
the serial number of the new cursor image.

To track cursor image changes xcb_xfixes_select_cursor_input is used (see
XFixes Version 5.0 protocol, section 7).

This could be useful for the zoom effect when it replaces the cursor.

REVIEW: 110519
2013-05-28 08:02:59 +02:00
Martin Gräßlin
0fb27fd12e Defines to create the boilerplate code for KWin's singleton classes
The define KWIN_SINGLETON adds to a class definition:

public:
    static Foo *create(QObject *parent = 0);
    static Foo *self() { return s_self; }
protected:
    explicit Foo(QObject *parent = 0);
private:
    static Foo *s_self;

There is an additional define KWIN_SINGLETON_VARIABLE to set a different
name than s_self.

The define KWIN_SINGLETON_FACTORY can be used to generate the create
method. It expands to:

Foo *Foo::s_self = 0;
Foo *Foo::create(QObject *parent)
{
    Q_ASSERT(!s_self);
    s_self = new Foo(parent);
    return s_self;
}

In addition there are defines to again set a different variable name and
to create an object of another inheriting class.

All the classes currently using this pattern are adjusted to use these
new defines. In a few places the name was adjusted. E.g. in Compositor
the factory method was called createCompositor instead of create.

REVIEW: 109865
2013-04-15 09:57:25 +02:00
Martin Gräßlin
f12cf0efba Replacement class for QCursor
With Qt5 QCursor does no longer provide ::handle() which was used to
set a cursor on a native XWindow for which we do not have a QWidget.

Also KWin has had for quite some time an optimized version to get the
cursor position without doing XQueryPointer each time ::pos() is called.

These two features are merged into a new class Cursor providing more or
less the same API as QCursor.

In addition the new class provides a facility to perform mouse polling
replacing the implementations in Compositor and ScreenEdges.

For more information about the new class see the documentation for the
new class in cursor.h.
2013-02-25 13:35:14 +01:00