gmane.comp.scigraphica.gtkextra

patch to solve the problem miss drawing on MS-Windows

Daisuke Shimamura — 2013-03-05T16:30:59

Hi all,

This is a patch to solve the problem miss drawing on MS-Windows.
I have tested this code on Win7 using the GTK-2.24 and MinGW.
This patch repair three problems.

The first problem is the reason of the problem miss drawing.
Because gdk_screen_get_resolution() of gtkplotcairo.c have always
returns -1, Failed to get the font, it eventually breaks the Cairo
context.

The second problem, because the gtk_plot_cairo_draw_pixmap() of
gtkplotcairo.c did not check a cairo object, it produces SEGV.

The third problem, testgtkplot.c prints out a too small image like a stamp. 

I hope you like it.

--
Daisuke Shimamura

--
Daisuke Shimamura
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Re: Gtksheet cursor movement

rmg — 2012-07-14T15:57:29

It's V 2.1.2 which I think it said was the current stable version. I'll give V 
3 a try.

Gtksheet cursor movement

rmg — 2012-07-14T15:45:21

My results programme uses gtksheet and is working well on this machine (Debian 
Lenny AMD64) but when I compile it to run on a 32 bit machine (Debian Squeeze) 
I find that it crashes when you cursor down populated cells, generally with 
either 'invalid pointer' or 'corrupted double linked chain'. Backtraces, when 
you get them, have a nest of libc6 calls.

So I tried compiling testgtksheet and blow me the same thing happens. So it's 
not entirely me.

Is there a solution to this, I'd like to distribute the prog, including a 
Windows version.

Re: Mingw build and building on MacOSX

Tom Schoonjans — 2012-04-04T15:26:31

Hello,


As someone who is doing cross-platform development with GTK I can confirm the problem detected by Charles.
I didn't manage to compile a properly working version of 3.0.1 with MinGW 4.6.1, either through the configure script or by using Makefile.mingw directly. When called from my application in Windows 7, the canvas never plots any PlotData nor plot legends, thereby rendering it unusable.

The 2.1.2 dev package seems to be working quite nicely though. Unfortunately I could really use some of the new features in 3.0.1...

Did the developers ever manage to create a working dll of 3.0.1? And if so, could they create a dev package containing this dll and share it on sourceforge?

Best regards,

Tom


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Op 21-mrt.-2012, om 16:41 heeft Charles L. Werner het volgende geschreven:

Mingw build and building on MacOSX

Charles L. Werner — 2012-03-21T15:41:24

Hello,
I built the software and demo programs successfully on Linux using configure. 
Similarly on Mac OSX Snow Leopard using Macports  with  GTK running under X11, 
no modifications were necessary
However on MingW under Win7 using the lastest gcc (4.6.2) and gtk 2.22.1 bundle, 
I was able to compile using configure both the libraries and applications.
testgtkplot starts, but draws only a few lines and no text.  I used no options 
to configure.

compilation with Makefile.mingw also works, but I cannot compile the test 
applications with this Makefile because there are no rules present.
Getting this to work on Mingw is essential if I am to use it for our application.

Any help appreciated,

Charles


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GtkExtra widgets not showing up in Glade 3.x Palettewith default gtk+extra-catalog.xml

M L — 2012-03-07T19:45:15

I am attempting to use Glade 3.x and the GtkExtra package under Windows.  I added the "gtk+extra-catalog.xml" to my catalog directory under my GTK+ install "C:\Gtk+\share\glade3\catalogs".  I found I have to modify the "gtk+extra-catalog.xml" file to get the gtkExtra widgest to appear in the Glade tool Palette by adding a "parent=" field to the glade-widget-class for example:
 
<glade-widget-class name="GtkCharSelection" parent="GtkDrawingArea" generic-name="gtkcharselection" title="GtkCharSelection - a widget which contains all the characters in a font"/>
 
without the addition of the  parent="GtkDrawingArea" field, the widget will not show in the Glade tool palatte.  I am not sure what the correct parent selection for all the class names GtkSheet, GtkSheetColumn, GtkCheckItem, etc..  Or am I going about this wrong ?  Where can I find this information? Why is it not already in the xml file? Without a "parent=" field nothing shows up in Glade.  I have been guessing to what the proper parent should b

gtk_plot_canvas_paint

Dario — 2011-12-20T18:35:39

Hi,
Does anyone knows what exactly the function gtk_plot_canvas_paint does in order
to repaint the canvas?

Since I must work with huge canvasses it costs a lot (in terms of time) to paint
it entirely.  So I'm searching for a surrogate group of functions that can paint
only a restricted area of it.

Thanks in advance.


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Re: repaint on resize

James Steward — 2011-11-01T20:49:37

I had some problems like that on Woedows when the original window size 
was larger than the physical window and then "maximised" to fit the 
screen.  I built gtkextra with MinGW.

Re: repaint on resize

Luis A. Montes — 2011-11-01T19:14:34

It does not seem to be MinGW specific, seems more like MSWindows
specific. I've compiled gtkextra 3.0.1 using MSVC 2005 and it still
shows the same behavior: plots are not drawn, only the frames/axis are
shown. The drag rectangle appears as well. It looks like the the GTK+
binaries for MSWindows require something different.

Luis



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Re: repaint on resize

Luis A. Montes — 2011-11-01T00:23:02

No, I'm sorry, I meant on my own program it does show after
hiding/exposing, but that's still using GtkExtra 2.*
Yes, same behavior on testgtkplot.exe using Gtk 2.22.0 on WinXP

I found that I was using a Gtk+/GtkExtra/MyProgram combination that was
linked against different MSVC runtimes (for my own program I'm using
MSVC 2005) That was the source of the SEGV (or access violation, as it
is called on the MS world). So I recompiled it using MSVC 2005 and now
it doesn't segfaults and I can use:
gtk_plot_canvas_paint( GTK_PLOT_CANVAS(pImpl->m_canvas) );

on my overloaded on_size_allocate to regenerate my plot nicely.
I wonder if the problem is related. When I compile with MinGW,
dependency walker (ldd for windows) shows it linking against MSVCRT.dll.
My program, on the other hand, links against one of the MSVCR80.DLL in
the windows side by side directory.



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repaint on resize

Luis A. Montes — 2011-10-31T17:29:32

Hi,

I've solved my problem with multiple sets, it was actually on my code,
not gtkextra. I'm not using 3.0.1 yet, though. But I want to get it
working with my current version and then I can try to see if I can
figure out why 3.0.1 is not drawing on the canvas under MS windows.
The only thing left before I do that is to repaint the plot after a
window resize. The plot seems to repaint itself on an expose event (that
is, if I cover the window and then uncover it, it repaints) but several
combinations of gtk_plot_paint and/or send_expose on_size_allocate,
on_idle, on_realize either don't do anything or produce a SIGV. Anybody
has some trick that can share?

The last thing I tried involved sending a delayed expose event (I'm
using gtkmm):

void GtkPlotWrapper::on_size_allocate( Gtk::Allocation &allocation )
{
set_allocation( allocation );
gtk_plot_canvas_set_size(
GTK_PLOT_CANVAS(pImpl->m_canvas), 
allocation.get_width(), 
allocation.get_height() );
gtk_widget_set_uposition(
GTK_WIDGET(pImpl->m_canva

Re: GtkPlot with multiple datasets

Luis A. Montes — 2011-10-28T19:20:50

Thanks both for your answers,

I did try gtk 3.0.1 under Linux (Ubuntu 10.04) and the tests work. On
Windows pkg-config --modversion gtk+-2.0 reports 2.22.0, on ubuntu I get
2.20.1. What do you get under solaris? I'm going to try installing 2.20
on windows, perhaps that has something to do with the tests not working?
Some deprecated functions might have gotten nuked.

Thanks

Luis

On Fri, 2011-10-28 at 18:53 +0200, Fredy Paquet wrote:



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Re: GtkPlot with multiple datasets

James Steward — 2011-10-27T21:13:05

I had a similar, perhaps related problem yesterday.  I had one dataset 
with GTK_PLOT_CONNECT_STRAIGHT, then added a second dataset with 
GTK_PLOT_CONNECT_SPLINE and the second plot went weirdo (technical term 
for FUBAR).

When I set both to SPLINE, I got;

ERROR:gtkplotdata.c:5274:spline_eval: assertion failed: (h > 0.0)


Yay.

Regards,
James.

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GtkPlot with multiple datasets

Luis A. Montes — 2011-10-27T20:24:03

I've been trying to use GtkExtra, specifically gtk plot to produce some
simple graphs. I have a single plot on a canvas, and then I add one
dataset. That seems to work. But when I add a second one using:

pImpl->m_dataset[n] = GTK_PLOT_DATA(gtk_plot_data_new());
gtk_plot_add_data(GTK_PLOT(pImpl->m_plot), pImpl->m_dataset[n]);

and then I try to set a different symbol for the second one using:

gtk_plot_data_set_symbol(
pImpl->m_dataset[n], symbol, GTK_PLOT_SYMBOL_OPAQUE,
5, 1,
&pImpl->m_color[color_ndx],&pImpl->m_color[color_ndx]
);

It ends up using the same symbol for both. The odd part is that the
legend does show different symbols for each data set. It actually seems
as if the two datasets get spliced into one.
Since I was using a sort of an old version, I downloaded the latest
(3.0.1) and compiled it using mingw, but I found out that the tests
(testgtkplot*) don't work any more. I do remember them working before.
The changelog seems to imply that the GtkSheet part is working but the
GtkPlot is

Re: Stop plots eating events

James Steward — 2011-10-13T03:49:50

I suppose I could comment out lines in gtkplotcanvas.c;

  widget_class->motion_notify_event = gtk_plot_canvas_motion;
  widget_class->button_press_event = gtk_plot_canvas_button_press;
  widget_class->button_release_event = gtk_plot_canvas_button_release;
  widget_class->key_press_event = gtk_plot_canvas_key_press;

Or set to NULL in my code.

Regards,
James.

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Stop plots eating events

James Steward — 2011-10-13T03:38:28

How do I do this?

I want to receive key press and release events, as well as left button 
(button 1) press and release events.

Once the plot is first displayed I can get key press and release events, 
as well as scroll wheel events.

If I left click inside the plot area, from then on key press events do 
not happen, but key release still gets to my app.

Left click events never get through, but scroll and right or middle 
clicks do.

It seems the plot is swallowing the left click and key press events.

Can I configure it not to?

Regards,
James.

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Re: gtk_plot_ fast on Linux, slow on Win32

James — 2011-09-28T21:55:47

Hi Fredy,

On Wed, 2011-09-28 at 17:50 +0200, Fredy Paquet wrote:

Yes.  I used --with-gdktarget=win32 --prefix="c:/gtk"


Is there a way I can check?

There were complaints about --export-dynamic.  I changed one instance of
--export-dynamic to --export-all-symbols in the configure script, not
seeing where I could have effected this change through env vars.

If I limit the number of data points to display to around 100,000 the
graph does get displayed on Win32 (Windows 7), but it is very much
slower than on Linux.  I'm considering whether I need to effectively
produce decimated data for when the view spans more than say, 10000
points.

Regards,
James.




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gtk_plot_ fast on Linux, slow on Win32

James — 2011-09-28T07:16:42

Hi,

Just wondering if anyone has experienced this.

I've got rather large datasets to plot (many 100,000 points), but less
than 1,000,000), and on Linux my app plots them fine.

Building for Win32 with MinGW, it seems to take for ever to execute;

gtk_widget_show_all(all);

Sometimes never returning (after 10-15 minutes I gave up).

I built gtk+extra 2.1.2 from source for Win32 with MinGW.

There was a couple of problems with a function implemented as "static
void" when it was not declared static in a header file.  Apart from that
it built fine.

Can anyone offer some advice here?

Regards,
James.



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Python bindings?

Mathew Yeates — 2011-07-20T17:48:29

Hi
I see that some old (7 years ago!) bindings exist. Has anyone done
anything further with this?


-Mathew

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Re: Gtk3 ???

James Tappin — 2011-06-23T17:23:29

Thanks for the info.

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Gtk3 ???

James Tappin — 2011-06-22T16:52:02

Are there any plans to make GtkExtra compatible with Gtk+-3? (For
example right now in the 3.0.1 version there are routines using
GdkPixmaps which are no longer available in G[td]k).

Right now in the gtk-fortran project we are looking into possible
plotting systems and the GtkExtra plotting tools look nice, but we are
trying to be compatible with both late 2.x and 3.0.

James

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