Font corruption
Dear all, I am cross compiling the following GTK related libraries on ARM platform: libatk 1.19.1 cairo 1.8.8 DirectFB 1.4.2 glib 2.23 gtk 2.16.6 pango 1.26.2 fontconfig 2.8.0 freetype 2.3.11 libexpat 2.0.0 libpixman 0.17.2 After finish compiling, I compile the attached program to display some chinese fonts in a gtk label. The chinese font is displayed correctly at first, but after scrolling, some chinese characters will be corrupted. The symptom has some characteristics: 1) Only happen when the number of different chinese characters used reached certain number. 2) Only happen after scrolling.(Or redraw the widget). 3) When a character is corrupted, lower half of the character is replaced by the top half of another character. Is anyone meet this before or has any suggestion to start debug it? Please help. I am not sure whether it is the correct place to ask for help here. If I am wrong, please kindly direct me to right place. Thanks. Thanks very much. Best Regards, Jacky longtext.c Description: Binary data ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
check if gtkWindow is maximized
Hi, how could I query if a GtkWindow is maximized without trigger the window-state-event? gdk_window_get_state seems to be not compatible? thanks, Andreas ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Undo stack for GTK+ (was: Re: undo in textview)
Cross-posting to move the discussion to gtk-devel-list. Anybody interested in the topic, please follow up there. On Do, 24.09.2009 19:23, A. Walton wrote: >It's definitely something many developers would love to see in Gtk+, >but only a few have stepped up to the bat with patches and actually >discussed the problem, Why don't we take the opportunity to discuss the problem now, then? I can start by offering my view on how an undo stack should look like, and provide a reference implementation as a basis of discussion. The implementation is a git branch called "undo" based on gtk+ 2.19.2, and can be found at git://github.com/hb/gtk.git I attached a cumulative (squashed) version to this mail for convenience, to be applied onto 2.19.2. It consists of 3 parts: A GtkUndo class, a GtkUndoView class, and a tiny test (demo) program in tests/testundo. The code attached to https://bugzilla.gnome.org/show_bug.cgi?id=322194 and gundo kind of go into the same direction, but fail on specific, in my oppinion important points (mainly one or multiple of the following: taking into account that undo and redo operations can fail, providing human-readable descriptions, limiting stack size, nesting groups). At the core, there should be a general undo class that should do the stack management. Let's call it GtkUndo. This class should be derived directly from GObject. Basically, a user of the undo stack registers a set of callback functions for undo and redo operations. They will get a user_data argument, and return a true value if the undo/redo operation was successful, or false if problems occured. If necessary, the set can also contain a free() function to free resources associated with the user_data. Signals: can-undo(boolean), can-redo(boolean) Undo/redo changed from possible to impossible, or vice versa. Useful for modifying e.g. menu item sensitivity according to whether the undo/redo stacks have at least one entry or not. changed(void) undo and/or redo stacks have changed. Useful updating stack information displays (e.g. a view of the complete stacks, or just information about top level items in menus) Properties: === max-length Integer that determins the maximum length of the undo stack. 10 means the stack can have at most 10 items, 0 means the undo stack can't be filled, -1 means it grows indefinitely. = The generic undo class can be regarded as the model in a MVC pattern. So we could have a view (let's call it GtkUndoView), which is some kind of GtkWidget, that displays a given undo and/or redo stack, and listens to the "changed" signal. This would basically provide a journal. The patch also contains such a view. It currently looks rather clunky, and is in the current state mainly useful for stack inspection and debugging. = Outlook: GTK+ could have a GtkUndoable interface, that every class or widget in GTK+ that wants to provide undo/redo capabilities should implement. The interface should just be used to tell those widgets which GtkUndo object to use (and if any, at all). void gtk_buildable_set_undo(GtkUndo *undo); GtkUndo* gtk_buildable_get_undo(void); Candidates for that would probably be at least GtkEntry and GtkTextView (or rather their respective models). Holger diff --git a/gtk/Makefile.am b/gtk/Makefile.am index 8ec9abf..1a83c22 100644 --- a/gtk/Makefile.am +++ b/gtk/Makefile.am @@ -335,6 +335,8 @@ gtk_public_h_sources = \ gtktreeviewcolumn.h \ gtktypeutils.h \ gtkuimanager.h \ + gtkundo.h \ + gtkundoview.h \ gtkvbbox.h \ gtkvbox.h \ gtkviewport.h \ @@ -615,6 +617,8 @@ gtk_base_c_sources =\ gtktypebuiltins.c \ gtktypeutils.c \ gtkuimanager.c \ + gtkundo.c \ + gtkundoview.c \ gtkvbbox.c \ gtkvbox.c \ gtkvolumebutton.c \ diff --git a/gtk/gtk.h b/gtk/gtk.h index 07952be..6986105 100644 --- a/gtk/gtk.h +++ b/gtk/gtk.h @@ -203,6 +203,8 @@ #include #include #include +#include +#include #include #include #include diff --git a/gtk/gtkundo.c b/gtk/gtkundo.c new file mode 100644 index 000..c51e3a9 --- /dev/null +++ b/gtk/gtkundo.c @@ -0,0 +1,888 @@ +/* gtkundo.c + * Copyright (C) 2009 Holger Berndt + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, I
Re: Problems with GSocketService
Ali Polatel yazmış: > I'm trying to implement a server using GSocketService but I faced some > problems. The code is here¹. > > The binding and listening for connections seem to work fine. > The problem is when a client connects, the g_input_stream_read_finish() > function in event_got_data returns error: > Read failed: Socket is already closed > > I'll be happy if someone can take a look. > > ¹: http://paste.pocoo.org/raw/160099/ Answering myself, I had to call g_object_ref() on the GSocketConnection so that it doesn't go dead :-] -- Regards, Ali Polatel pgpnbdLAe0m5R.pgp Description: PGP signature ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: What, in detail, the GDK do?
28.12.09, 12:46, "frederico schardong" : > >gdk wraps the business of creating a window and getting events > only a window or all the widgets? Everything below GTK+ is just to make things cross-platform. GTK+ widgets do use GDK windows and other primitives. GDK is a thin layer that provides same interface to windowing system (X11, GDI, Quartz, etc.) on all platforms supported. Its interface is very close to Xlib, and wraps some functionality described at freedesktop.org on platforms that do not conform freedesktop.org standards. GDK primitives are: real windows and events, off-screen pixel buffers, selections (low-level clipboard), drag-n-drop (again, low-level), keyboard, pointer, other input devices. [1] Shortly, GTK+ widgets use GDK for interaction, cairo for (custom) painting, pango for painting text. GLib [2] is extended cross- platform version of clib, plus ADT, OO, utf-8, io, etc. GTK+ and GDK do use GLib, pango and cairo do not. Moreover, GDK, pango and cairo do not form strict hierarchy -- they all have many backends and may cooperate in different ways on different platforms or applications. (i'm not sure whether this is true for GTK+ implementation, however) [1] http://library.gnome.org/devel/gdk/stable/ [2] http://library.gnome.org/devel/glib/stable/ -- Artur ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Benchmark test
Hi, Does anyone know about benchmark testing GTK in C and it bindings(PyGTK, PHPGtk, etc..)? I've searched but not found nothing. -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: What, in detail, the GDK do?
A good book on programming for the X Window System is "Xlib Programming Manual" by Adrian Nye (O'Reilly & Associates, Inc"). I've been using it to try building my own object-oriented "toolkit" using C++. My stuff will never be "production quality", but it really helps understand what is happening at low levels. Ed James 2009/12/28 David Nečas : ... > I'm afraid to understand what Gdk does cannot be understood without > understading the basic X window system concepts. Because essentially ... ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Glib cross compilation
On Mon, Dec 28, 2009 at 06:41:30PM +0530, Niamathullah sharief wrote: > i am compilaing and glib for my ARM baord and i am getting one error > see > > *checking for format to printf and scanf a guint64... none > checking for an ANSI C-conforming const... yes > checking if malloc() and friends prototypes are gmem.h compatible... yes > checking for growing stack pointer... configure: error: in > `/mnt/freescale/sources/glib-2.22.0': > configure: error: cannot run test program while cross compiling > See `config.log' for more details. > Configuration of glib library has failed > * > *shar...@sharief-desktop:/mnt/freescale/sources/glib-2.22.0$* > * > * > can anyone help me..what is this? and how to clear that? This should help you: http://library.gnome.org/devel/glib/stable/glib-cross-compiling.html especially the part about glib_cv_stack_grows, but apparently you haven't read it at all. Yeti ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: What, in detail, the GDK do?
On Mon, Dec 28, 2009 at 12:46:36PM -0200, frederico schardong wrote: > >gdk wraps the business of creating a window and getting events > > only a window or all the widgets? X (or Gdk) Window is a thing that can receive events and/or can be drawn on. Many widgets have their own windows, for instance, text entries or menus. I'm afraid to understand what Gdk does cannot be understood without understading the basic X window system concepts. Because essentially all Gdk does is providing platform-independent abstraction of these concepts (plus some other low-level utilities). Yeti ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: What, in detail, the GDK do?
>gdk wraps the business of creating a window and getting events only a window or all the widgets? 2009/12/28 : > 2009/12/28 frederico schardong : >> So how low level GDK goes? It renders the widgets according the OS? >> Where GTK+ ends and GDK starts? Where GDK ends and GLib starts? > > You can read about it here: > > http://www.gtk.org/documentation.html > > gdk wraps the business of creating a window and getting events, cairo > does low-level drawing, glib does data structures, utility functions > and event loops, gobject is the object model, pango renders text, > gdkpixbuf loads and transforms images, gtk issues all the drawing > commands to display widgets, your application does everything else. > > John > -- Thanks, Frederico Schardong, SOLIS - Open source solutions www.solis.coop.br Linux registered user #500582 ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Glib cross compilation
i am compilaing and glib for my ARM baord and i am getting one error see *checking for format to printf and scanf a guint64... none checking for an ANSI C-conforming const... yes checking if malloc() and friends prototypes are gmem.h compatible... yes checking for growing stack pointer... configure: error: in `/mnt/freescale/sources/glib-2.22.0': configure: error: cannot run test program while cross compiling See `config.log' for more details. Configuration of glib library has failed * *shar...@sharief-desktop:/mnt/freescale/sources/glib-2.22.0$* * * can anyone help me..what is this? and how to clear that? ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: What, in detail, the GDK do?
2009/12/28 frederico schardong : > So how low level GDK goes? It renders the widgets according the OS? > Where GTK+ ends and GDK starts? Where GDK ends and GLib starts? You can read about it here: http://www.gtk.org/documentation.html gdk wraps the business of creating a window and getting events, cairo does low-level drawing, glib does data structures, utility functions and event loops, gobject is the object model, pango renders text, gdkpixbuf loads and transforms images, gtk issues all the drawing commands to display widgets, your application does everything else. John ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Problems with GSocketService
I'm trying to implement a server using GSocketService but I faced some problems. The code is here¹. The binding and listening for connections seem to work fine. The problem is when a client connects, the g_input_stream_read_finish() function in event_got_data returns error: Read failed: Socket is already closed I'll be happy if someone can take a look. ¹: http://paste.pocoo.org/raw/160099/ -- Regards, Ali Polatel pgpX4yeUHQW4e.pgp Description: PGP signature ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
