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Signed-off-by: Geoff Levand <geoff@infradead.org>
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Signed-off-by: Geoff Levand <geoff@infradead.org>
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Signed-off-by: Geoff Levand <geoff@infradead.org>
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Signed-off-by: Geoff Levand <geoff@infradead.org>
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Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Geoff Levand <geoff@infradead.org>
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This avoids clutter in the top-level dir, and also fixes this automake
warning:
Makefile.am:118: warning: source file 'twin_demos/twin_calc.c' is in a subdirectory,
Makefile.am:118: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled. For now, the corresponding output
automake: object file(s) will be placed in the top-level directory. However,
automake: this behaviour will change in future Automake versions: they will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.
Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Geoff Levand <geoff@infradead.org>
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Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Geoff Levand <geoff@infradead.org>
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Signed-off-by: Geoff Levand <geoff@infradead.org>
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In a similar fashion as the Linux mouse and joystick, support absolute
pointing devices using /dev/input/eventX. Currently it only handles
ABS_X, ABS_Y, and BTN_TOUCH events.
The library interface will open the specified device or, if unspecified,
find the first device in /dev/input that supports absolute and touch
events.
Signed-off-by: Tyler Hall <tylerwhall@gmail.com>
Signed-off-by: Geoff Levand <geoff@infradead.org>
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o Remove old .cvsignore files.
o Add missing dist files to Makefile.am.
o Remove generated files from dist.
Signed-off-by: Geoff Levand <geoff@infradead.org>
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Signed-off-by: Geoff Levand <geoff@infradead.org>
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Signed-off-by: Geoff Levand <geoff@infradead.org>
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Fix various unused parameter and type mismatch build
warnings.
Signed-off-by: Geoff Levand <geoff@infradead.org>
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Define a preprocessor macro maybe_unused and add
it where needed to remove unused parameter build
warnings.
Signed-off-by: Geoff Levand <geoff@infradead.org>
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Remove the empty and unused static routine twin_path_bevel_shape().
Fixes unused parameter build warnings.
Signed-off-by: Geoff Levand <geoff@infradead.org>
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Alpha byte swapping is done in twin_premultiply_alpha(), so
the PNG processing overhead can be reduced by removing the
png_set_swap_alpha() call in twin_png_to_pixmap() and adjusting
twin_premultiply_alpha().
Signed-off-by: Geoff Levand <geoff@infradead.org>
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Add a new helper routine _twin_apply_alpha() that handles
big and little endian details of alpha multiplication
for png to ARGB32.
Signed-off-by: Geoff Levand <geoff@infradead.org>
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Add two new routines twin_fbdev_create_ext() and
twin_fbdev_process_events() that allow application
control of twin event processing.
Signed-off-by: Geoff Levand <geoff@infradead.org>
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Add two new routines twin_x11_create_ext() and
twin_x11_process_events() that allow application
control of twin event processing.
Signed-off-by: Geoff Levand <geoff@infradead.org>
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Signed-off-by: Geoff Levand <geoff@infradead.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@pasglop.(none)>
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We're currently getting TwinEventKeyDowns for key ups, and vice versa.
This change fixes the problem.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Add a simple event layer for joystick devices.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Convert twin_linux_mouse_accel() to twin_fixed_t arithmetic to avoid
dependency on libm.
Depends on separate patch which actually fixes twin_fixed_sqrt()
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Twin_fixed_sqrt() suffers from overflow. Fix it.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The cursors used by twin compress well, so allow twin_cursor to load a
compressed cursor file when zlib is present. In both cases,
uncomressed cursors still work.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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No need to have it in the user header
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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twin_def.h wasn't defined in Makefile.am's sources list correctly, so
make dist fails. This change fixes the problem, referring to twin_def.h
in its proper location.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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As usual with glyph metrics, I only half understand what's going on there :-) From trial and error, it looks like the margin thing we apply for stroke font is no good for ttf, at least not using a margin does make things much nicer for me using ttf fonts
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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libtwin expects pixmaps to be premultiplied with their alpha channel,
but loaded PNGs aren't. This change adds a generic function to do alpha
premulitplication, and uses it on pixmaps loaded from PNG.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This adds altivec versions of argb32_over_argb32 and
argb32_source_argb32 operations and a bit of altivec
optimisation to the fbdev put span code as well.
It could probably be further optimized, and with some
patience, one could implement the full set of primitives
for altivec instead of just those two, but that's at
least a beginning. I haven't properly measured the
difference in performances yet. It is definitely faster
on my powerbook though.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This change to the libtwin build system detects altivec support, and
sets cflags and a #define HAVE_ALTIVEC if found.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This change modifies the twin sources to expect twin libraries in the
libtwin/ directory. Consequently, we need to move the headers (and
sources to keep things clean) into the libtwin/ directory in the source
tree.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Remove -fno-struict-aliasing as I think the code is generally
safe due to the proper use of unions when an object can have
multiple different types. twin_timeout.c did have some dodgy
casts that I removed.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This patch disables refresh around widget refresh operations
(from the toplevel object) so that individual widgets get
refreshed at once and thus don't flicker. This fixes the
flicker with the demos
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This makes the fbdev backend refresh damaged areas directly from
the screen->damaged callback instead of delayed to a "work". The
work is still there to handle console switches. In order to avoid
flicker and artifacts, we also disable refresh around cursor
updates and window content.
The demos flicker a lot in this mode, so they'll have to be fixed
to disable / enable refresh around some operations too (probably in
the widget code), but the overall performances are better for my
application as mouse cursor no longer triggers giant updates when
moving while something else is updating
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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First, don't destroy the previous cursor when relacing it as it's
common for applications to store a bunch of cursor images and flipping
them in, they don't want to have to re-create them each time.
Then, there was a NULL-deref when setting the cursor to NULL to
remove it
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Gives me some air to breath
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This is temporary as I need to implement a proper keyboard handling,
probably via the event device, and an input method mecanism for
translating unhandled raw key down events into ucs4.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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can be used to handle global application events, like console
switch related events (once I take the primitive keyboard stuff
out of twin_fbdev)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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who have a drawproc installed. I intend to use that for some apps that
directly paint in windows rather than using the widgets mecanism
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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are now two different things, so that you can clip drawing within
changing your coordinate system.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Oops, introduced by the transform changes, I wasn't testing
msk for NULL before dereferencing it in one spot.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The existing twin.pc file was generated, but not installed. This change
installs it (as libtwin.pc), and uses the more flexible TWIN_DEP
variables.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This change adds twin_png to the default build of libtwin.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This change adds --disable options to prevent building
the x11, fbdev, linux-mouse and ttf components, even if
they're found by pkgconfig.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Looks like the idea of splitting up the twin libraries into
componenets (eg, libtwin-x11.so for x11-specific stuff) wasn't
working too well.
Instead, we should stick to the one shared library, whose contents
change depending on the available dependencies.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This change moved the twin demo binaries to the twin_demos
subdirectory.
Also, don't include these demos in the install - they can be run from
the build directory instead.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Change the Makefile.am to not use recursive make - this will allow
future dependencies on the twin library without too much automake pain.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This patch installs the libtwin headers in
$prefix/include/libtwin/ during make install
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Small cleanup of libtool version arguments - only specify
-version-info when building libraries.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The current "target" is the one under the mouse and also
receives mouse movements and button down events. However,
once the button has been pressed in a window, all subsequent
mouse events will be sent to that window (and no mouse leave
will be generated) until the button has been released.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This change moves the twin demo applications to a new subdirectory
(twin_demos), and updates the auto{conf,make} setup to suit.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This change separates twin into a set of libraries (libtwin,
libtwin-x11, libtwin-fbdev and libtwin-mouse).
Also, generally improve the autoconf magic to make this all work.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The transform matrix is currently stored in the pixmap, though
it is only ever used when that pixmap is a source of a composite
operation (not for windows refresh, damage, etc...) thus I might
move it to twin_operand_t.
The implementation is totally sub-optimal but it gives a working
basis. As Keith suggested, we could use a bresenham-type algorithm
in the transform loop to avoiding having to transform every pixel
through the matrix. That will probably significantly improve
performances. There are also minor optimisations that can be done
in a few corners.
Also the matrix is used as a reverse transform, which can
be confusing. I'll fix it one of these days to operate on an
inverted matrix instead.
While playing with it, I noticed several issues with the existing
non-transform composite function. A bug I fixed related to masks,
but also the source clipping seems to be busted.
It adds the clip top/left to the src_x/y & msk_x/y which doesn't
make much sense to me and doesn't clip when fetching pixels, thus
forcing you to have perfectly adjusted width and height args to
twin_composite() that match the source image size (which stops
making sense when using transforms). I haven't fixed it yet but
I will do so, possibly by merging xform and simple into one
function (thus always using a temporary span buffer) or by adding
a bit of clipping code to the simple function's inner loop.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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The code would do a delete/insert pass while walking the
queue which had the effect of breaking the "order" linkage
(insert re-initializes pretty much everything).
I fixed that by adding a new _twin_queue_reorder() which
is to be called on an element that is to be re-ordered and
which works at any time, even during a queue walking and
using it from the timeout code.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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If you use that, you also need to link on libpng.
Only quickly tested for now, there are some weird things with
libpng that I might not have gotten right, some comments are
welcome.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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the converter might still be a bit dodgy, I'd appreciate somebody who
knows that stuff better to have a look :-)
Basically, I added back the type '2' operation to the glyph data parser
that was used by the previous ttf parser before it got removed and fixed
it up to work in the new context. I pondered using the 'c' "generic"
curve operation instead and put the burden of conversion in the converter
application, but that would have caused bigger converted font files,
so I chose to keep the old op.
Various bits & pieces of the font code are modified to cope with the
non-stroke fonts (mostly there is no "pen" to account for and we don't
convolve but just append the glyph path to the current path).
Full support for unicode pages is back. The stroke font has only page 0
for now (the initial code seemed to have more tables I didn't feel like
re-converting that so if you want stroke font with more unicode pages,
it's up to you to dig the old format and convert it to detect snaps and
use curves). We may want to add arguments to twin_ttf converter to only
convert a subset of the pages in a font for compactness.
Examples still use the built-in font but it's easy enough to change the
g_twin_font global and link a generated font file in (tested with
Vera.ttf). I still need to add a better way to deal with multiple fonts
at once.
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Note the example cursor file is borrowed from bluecurve
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Uses /dev/input/mice, uses the accel code from kdrive
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The mode is whatever was set when launching, though it would be trivial
to add support for mode setting.
Keyboard support is very primitive for now, basically it provides an
ESC key to kill the app and F1...F10 to console switch.
Note also that the fbdev is not switched to the front by default, so
you can setup your whole windowing system and only activate it all
at once when ready.
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This adds support for a cursor pixmap that is always on top and
follows mouse movements.
It also provides a function for importing a cursor image from an
X.org ARGB cursor file.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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AM_INIT_AUTOMAKE()
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Track changes in cairo API to bring forward to be compatible with cairo
1.0.x. Remove some unused variables.
Add missing includes of cairo-xlib.h, X11/Xutil.h, and string.h.
Add missing return value and remove unused variables.
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Add cap styles, widget shapes, text alignment and arcs Change
circle/ellipse API.
Capture button events.
Use Lozenge shape for output
Drag lines with the mouse
drag splines with the mouse
move '1' right a bit
Convert dispatch result to boool
was mis-computing delegate and crashing when window->event was NULL
Map X button info to twin mask
draw different stuff.
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Convert to a widget
Always paint background, even if transparent
show clock widget
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Change type name from twin_layout_t to twin_box_dir_t Create new
twin_widget_layout_t holding layout preferences. Add copy_geom field to
widget to make widgets look the same Add button signals and signal
proc. Fix box layout to sum stretch along axis and minimize normal
Add calculator demo
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Change order of timeout vs work, making work come last as that's where
redisplay occurs.
Oops. Argument order wrong in twin_pixmap_damage call
Make button italic to test
Change names of formals to match prototype
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Snap origin to pixel grid
Strip newline from ctime output
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Grab button down inside client area. Add button widget
Test button widget
Permit subclassing; add offset to make text shift in button
Add _twin_widget_contains to test inclusion
Grab button down inside client area
Make hello window larger
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Fix numbers to have the same width.
Add new relative-origin clip setting function
Change enumerated constants to include Twin prefix
Add new widget-based demo
Start widget based demo
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stuff
Split demos into separate files
Make drawing origin match clip rectangle.
twin_fedit Add glyph editor to CVS to preserve it
Add scalable icons
Separate 'closing' a subpath from 'finishing' a subpath; the former adds a
point back to the start while the latter just leaves the path unclosed
and prepares for a new subpath.
Eliminate locking, add clipping.
Clean up title drawing, use clipping
Eliminate locking, use dispatch stuff
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Add screen backgrounds
Eliminate spurious border bits
Add text display applet
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including titles. Default event dispatcher does restacking and motion.
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Rework snapping to correctly snap vertical and horizontal text on pixel
boundaries.
Change clock watermark
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Fix angular problems in hand position by rotating everything 90 degrees.
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Oops -- overflow not handled correctly in distance functions.
Replace new glyphs with versions using splines.
Whack around the default presentation a bit more
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Change glyph representation to allow splines and include metrics.
Add some new helper functions.
Expose _twin_path_scurve for glyphs
Increase sin table precision.
Fix off-by-one error in y position. Lock screen while adding expose damage
Change clock appearance. Use corrected glyph metrics
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Add twin_int_to_fixed. Inline twin_fixed_mul and twin_fixed_div using
int64_t. Add twin_text_metrics_utf8. Hard-code the max number of
vertices in a glyph. Set various ICCCM properties to make X wms happy.
Use better approximation of ellipse major axis radius when drawing circles.
Compiler warning.
Delete duplicate twin_over definition
Allow for multiple clocks, and add watermark. Note that text metrics are
quite broken currently.
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Add helper functions
Lock pixmaps during drawing
Disable screen updates while applications are busy
Add threads to manage events and redisplay
Paint a clock
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Reimplement text snapping. Note that things are snapped to user units, not
pixels. Snapping to pixels requires some thought about rotating
transformations.
Oops. Closed paths don't necessarily need to join ends, but circles do.
Random new tests.
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colinear with extreme. Note that text snapping is currently broken.
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accept that the resulting path isn't minimal in all cases. This
eliminates the weird results from said attempted minimal path with
large pens and small curves. It also eliminated a lot of extra code
from this function.
Fix font baseline value (should be 9). Take pen size into account when
computing positions so that glyphs rest on the baseline instead of
painting on top of it.
Show baseline in huge text sample
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paths and attempt to construct two disjoint paths as their convolution
with the pen. This appears to break when the path has a radius of
curvature smaller than the radius of the pen. I'm committing it to CVS
mostly so I don't lose the code; I will shortly commit a patch which
eliminates the check for a closed path.
Oh, one correct change is to _twin_path_leftpoint which used to try to be
clever about point selection. Now that pens are forced to be convex,
the correct point to use is the one furthest from the line.
Ignore subpaths containing a single point. Add 'twin_path_append' to glue
one path into another.
Add debug output that shows vertices of polygons
Code to test convolution change mentioned above
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some dead code. Try to adjust width computations a bit. Still not
right.
draw in more colors
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Finish needed stroke font API.
Elimiate all but ascii glyphs, use offset table to eliminate table of
pointers (which can't be const)
Remove twin_vera.c
Change glyph structures around for offsets and ascii only
Few more cases to show ascii text support
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convex shapes so that the convolution algorithm works correctly.
Reduce default tolerance to 1/16 of a pixel
Use convex hull of pen.
Snap horizontal and vertical elements of glyphs to pixel boundaries. Snap
stem widths to integer amounts. Add slanting and emboldening
Add space and box
Avoid using __inline as it increases size dramatically
Use <= tolerance_squared as that may be zero
Swizzle code to show off recent changes
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twin_path_cur_point
fix twin_path_step to actually handle duplicate points. Change 'clockwise'
to 'around_order' so that all three possible results are returned
(clockwise, parallel and counterclockwise) Handle disjoint strokes
Add outline and stroke font support (pick one and remove the other)
Huge array of stroke fonts from Hershey. Pick appropriate subset and remove
extra glyphs (there are a lot here)
Eliminate repeated move and close, eliminate duplicate draw.
Add support for 1, 4, 16 and 64 samples. 16 appears to be the magic sweet
spot.
Convert "real" outline fonts to twin built-ins
Converted version of Bitstream Vera Sans Roman
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Find pen starting point as closest to the normal to the path. Restructure
convolve loop to be easier to understand
Round circle coordinates instead of truncating them
Move sample grid by 1/2 sample step. Clip polygons to mask pixmap. Modest
performance improvement in span filling. Fix end case to remove edges
before stepping.
Stroke a path.
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Move shared geometric functions to new file
Add twin_path_circle to generate pens. Fix path edge generator to handle
last subpath right.
Skip vertices which don't span a sample row
test convolutions
Add .cvsignore file
Mention path primitives
Add paths
Eliminate some unused variables.
Simple path construction
Anti-aliased polygon fill code
Change twin_bool to twin_bool_t
Append cubic Bézier splines to paths
Test paths
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