Re: RES: minimum software requirements..
23.11.2011 15:41, Marcelo Elias Del Valle - SYSMAP SOLUTIONS - Claro MA-SP - пишет: It runs on tablets and phones too, so you can imagine that system requirements are generally not a problem. What do you mean by without gui installed? Sorry, but could you please tell me a bit more about that? Any link to some doc I should already have read is fine too. I didn't know Gtk runs on phone and tablets already, but the system requirements are not clear to me. Do I need to run Windows and X on the phone to do that? I know Gtk can run natively on Nokia Symbian, but I guess I can't run Gtk programs on iOS or Android nowadays, right? Gtk+ is used in Maemo (maemo.org, maemo.nokia.com) environment on Nokia N810, N900 devices. Cheers, Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Getting menu after glade2-gtkbuilder-convert- what then?
Hi, All,
I urgently need an explanation or example on how a menuitem
can be got in a program after creating a glade2 file, converting
it to gtkbuilder file, then loading it ia a program and then...
Mainwindow::Mainwindow(BaseObjectType* cobject, const
Glib::RefPtrGtk::Builder refBuilder)
: Gtk::Window(cobject)
{
refXml = refBuilder;
// that works fine with Gtk::Entry *measured_t_entry:
refXml-get_widget(measured_t_entry, measured_t_entry);
// that doesn't compile with Gtk::Action *menu_exit:
refXml-get_widget(menu_exit, menu_exit);
// that doesn't work with Gtk::Action *menu_exit in runtime:
refXml-get_object(menu_exit);
...
menu_exit-signal_activate().connect(sigc::mem_fun(*this,
Mainwindow::on_menu_exit_activate));
}
The error message is: Gtk-CRITICAL **: gtk_text_buffer_emit_insert:
assertion `g_utf8_validate (text, len, NULL)' failed
Any help needed.
Igor Gorbounov
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Re: Drawing with cairo
Diego A. Fons ?:
[...]
Still I don't understand why can't get a context and store it in a
member variable.
[...]
Then look here:
this is Plot class definition:
class Plot
{
public:
Plot(Cairo::RefPtrCairo::Context context, Gdk::Rectangle plotarea);
~Plot();
std::vectorSeries* series;
...
private:
*Cairo::RefPtrCairo::Context plot_context;*
Gdk::Color background_color, foreground_color;
};
Plot constructor:
Plot::Plot(Cairo::RefPtrCairo::Context context, Gdk::Rectangle pltarea)
{
plotarea = pltarea;
marginrect = Gdk::Rectangle(int(0.03*plotarea.get_width()),
int(0.03*plotarea.get_height()),
int(0.94*plotarea.get_width()), int(0.94*plotarea.get_height()));
plotrect = marginrect;
* plot_context = context;*
background_color = Gdk::Color(white);
...
}
Plot resizing:
void Plot::resize(Cairo::RefPtrCairo::Context context,
Gdk::Rectangle pltarea)
{ // ??? ??? ? ???
* plot_context = context;*
plotarea = pltarea;
plot_context-set_source_rgb(background_color.get_red(),
background_color.get_green(), background_color.get_blue());
...
}
And this is plot initialization from MainWindow:
void Mainwindow::plot_init(void)
{ // ? ? ???
plotarea_win = drawingarea-get_window();
...
win_context-set_source_rgb(color.get_red(), color.get_green(),
color.get_blue());
//prepare a copy
plotareaCopy = Gdk::Pixmap::create(plotarea_win,
drawingarea-get_allocation().get_width(),
drawingarea-get_allocation().get_height(), -1);
gc = Gdk::GC::create(plotarea_win);//sorry...
* cairo = plotareaCopy-create_cairo_context();*
int pwidth, pheight;
plotareaCopy-get_size(pwidth, pheight);
Gdk::Rectangle plot_area = Gdk::Rectangle(0, 0, pwidth, pheight);
*plot = new Plot(cairo, plot_area);*
drawingarea-signal_expose_event().connect(
sigc::mem_fun(*this, Mainwindow::on_drawingarea_expose_event));
}
This is an expose event - sorry, but for the sake of speed I use here
Gdk::GC approach
for simple copying of area from a background copy:
bool Mainwindow::on_drawingarea_expose_event(GdkEventExpose *event)
{
plotarea_win-draw_drawable(gc, plotareaCopy, event-area.x,
event-area.y,
event-area.x, event-area.y, event-area.width,
event-area.height);
...
return true;
}
And here is resizing of a plot:
bool Mainwindow::on_drawingarea_configure_event(GdkEventConfigure*)
{ // redefine demensions
plotareaCopy = Gdk::Pixmap::create(plotarea_win,
drawingarea-get_allocation().get_width(),
drawingarea-get_allocation().get_height(), -1);
if (plot)
{
*cairo = plotareaCopy-create_cairo_context();*
int pwidth, pheight;
plotareaCopy-get_size(pwidth, pheight);
Gdk::Rectangle plot_area = Gdk::Rectangle(0, 0, pwidth, pheight);
plot-resize(cairo, plot_area);
plot-drawplots();
}
return true;
}
When I need printing I just call Plot::resize(Cairo::RefPt...) with the
context and rectangle
taken from Gtk::PrintContext.
Hope it helps somewhat,
Igor Gorbounov
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Re: Drawing with cairo
Diego A. Fons пишет: [...] My question is if there is a way of preserve the cairo context intact between the the calls to on_expose_event()? Why getting the cairo context in the on_realize() handler and storing it in a variable doesn't work? Why, it works! Those are just examples. I use a context variable as a member of my Plot class, and this variable is assigned in an initialization method, and reassigned when plot area is resized. Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Setting up GTK+ on Windows using Mingw
John Smith пишет: [...] Actually, I *am* using and IDE: I have set up MingW with Eclipse as the IDE on Windows. And since im obviously not an expert (yet) [...] So why not using gtk+ installer from http://sourceforge.net/projects/gladewin32 ? I also use Eclipse (and now begin using Code::Blocks) as IDE for developing applications for Win32 using gtkmm. Cheers, Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: question
Moises пишет: Hello everybody again. [...] As I get a widget from another that contains it? for example visual basic makes it: Name = Me.TxtName.Text () Then the upper widget should have those embedded widgets be defined as variables in it. Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: compiling GTK app in WIndows
regatta wrote: What I have is GTK+ version 2 (so http://gladewin32.sourceforge.net/. is not an option since it's for version 1) and I'm using C not C++ (so also gtkmm is not an option) Sorry, if I've misunderstood something but gtk+-win32 installers from http://gladewin32.sourceforge.net/ install only gtk+ environment and glade for win32 (a very useful thing, IMHO). All this stuff is usable for C only, not for C++. plus I don't have M$ Studio (so I need a free compiler that compile C in Windows). And so do I - Dev-C++ is a nice IDE-like tool for C/C++ development. When you create a new project you choose, which language (C or C++) you will use. Dev-C++ comes with win32 gcc port (named Mingw32) version 3.4.3. May be there is a way to use a more recent gcc version, I don't know. What about MS Visual C++: they say that a MS VC Express 7 is a free tool, you can download it (if some hundreds of downloading is not a problem for you) and use for free. Good luck, Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Gdk::Window::add_filter() or gdk_window_add_filter() examples
Murray Cumming wrote: On Thu, 2005-12-22 at 08:04 +0300, Igor Gorbounov wrote: Hi, All! I need any hints about using Gdk::Window::add_filter(GdkFilterFunc function, gpointer data) or gdk_window_add_filter(...), in particular what this filter function looks like and how those gpointer data are made. Igor Gorbounov The data is some state information (such as a pointer to a C++ class instance) that will be passed to the callback function. This hasn't been wrapped as a sigc::slot, probably because I couldn't see when it would be useful. [...] The situation is such that I use a winapi mplayer and pass to it a gdk_window handle, and next, when that player stops it sends an awfull winapi message in some crazy winapi way, and I've almost broke my brains in an effort to get this message. This add_filter method was designed to catch those messages, but how - no one has wrote an example. As far as I could find in Google, Tor Lillquist had added this filter in about gtk+ 2.2.x. Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Gdk::Window::add_filter() or gdk_window_add_filter() examples
Hi, All! I need any hints about using Gdk::Window::add_filter(GdkFilterFunc function, gpointer data) or gdk_window_add_filter(...), in particular what this filter function looks like and how those gpointer data are made. Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Win32 API HInstance and gtk+ - how?
Tor Lillqvist wrote: Igor Gorbounov writes: Tell me, please, if there is any way to get a Win API application instance handle in a gtkmm application GetModuleHandle(NULL) ? Yes, Vinzenz Feenstra has suggested this function last week and it helped. Thanks to all, who answered my question. Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
mplayer in a gtk application
Hi, All! I need to implement some kind of movie player in my gtk+ win32 app. Any hints, please? Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Win32 API HInstance and gtk+ - how?
Tell me, please, if there is any way to get a Win API application instance handle in a gtkmm application just as it is needed in this function: HWND MCIWndCreate(HWND hwndParent, HINSTANCE hInstance, DWORD dwStyle, LPSTR szFile); Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Icon in a tray - how?
Tell me, please, what widget (or anything else) can be used to represent an application by an icon in the tray (or notification area applet?)? Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Gtk windows - how move it off screen?
When using non-gtk app (VMware 4.5.2) you can move its window off screen in upper direction. It is usefull sometimes. Now VMware has a gtk window and it doesn't move up anymore higher than the upper limit of a GNOME desktop. Is there something that can be done to move those windows higher? Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Would love some feedback on my tutorial...
Murray Cumming wrote: [...] Code generation with Glade is silly. People should use libglade. If those people write their programs using C++, then they also need libglademm, so there is one more dependency. If generate code with glademm, then no extra lib is needed. Igor Gorbounov ___ gtk-list mailing list gtk-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-list
Re: GtkCellRendererCombo example?
Murray Cumming wrote: Is anyone using GtkCellRendererCombo yet? I see, it is implemented in GTK, and GtkCellRendererProgress http://developer.gnome.org/doc/API/2.0/gtk/GtkCellRendererProgress.html, too! Great! So are they going to be wrapped in gtkmm? Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Gtk::TreeView performance
John Gill wrote: [] My suspicion is that the treeview is calculating the layout of the renderers within the the fixed width of each column. I'm guessing if there was an option to stop it doing this (since its initial layout is more than good enough for me) that we would see a dramatic speed improvement. Yes, if it could be possible to freeze the treeview while updating data and only then unfreeze it, then it would be a performance increase, I suppose. Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: [gtkmm] Gtk::TreeView performance
David Jensen wrote: [...] try keeping a Glist of structs of GDK::Colors that matches the ListStore row:column 'color' cells. Have the row:column colors be pointers into the Glist. accessing a Glist struct is cheap, accessing a row:column is very expensive i'm afraid that i don't quite understand how to do this. it seems to me that the cellrenderer's propeties can be assigned through another cells only... something's wrong with my 'shift' key... sorry igor gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Gtk::TreeView performance
Hi, All! My application uses a TreeView (using ListStore model) table to present measured data once per second. This table has about 20 rows and about 40 columns. The problem is in consuming too much CPU resources (about 14% when the table is switched on, and near 3% when it is switched off). The cells af this tables display text, and the color of this text foreground and background is changed depending on values in invisible cells. So is there any way to optimize this whole structure? Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Printing in GTK+
Carl B. Constantine wrote: * Roger Leigh ([EMAIL PROTECTED]) wrote: Carl B. Constantine [EMAIL PROTECTED] writes: I have some data I want to print out in my application. How do I do it? To make things a little different, I *might* print to one of those POS type printers (USB) not a regular printer. Pointers? Which classes do I need to use? GTK+ itself doesn't currently offer any printing support, so the question doesn't really involve GTK+ directly. You need to either 1) Open the printer device (e.g. /dev/usb/lp0) and write data to it. 2) Open a pipe to the printer spooler (e.g. lpr -P queuename) and then write the job data and close the connection. Thanks for clearing this up. Why, you could use gnomeprint and gnomeprintui. There are a lot of formatting abilities. Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Printing in GTK+
Todd Fisher wrote: What about a cross-platform method for printing? -todd Perhaps, someone will port gnomeprint to other platforms? :-) Igor ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: GTK Modal dialog
Carlo wrote: [...] After some attempt, I found that it is call to *gtk_window_set_skip_taskbar_hint* that make the dialog lost its modality (BTW, after calling gtk_window_set_modal the window losses its taskbar button). So you don't use a gtkdialog window now and really stays above the parent window?! That's great! I've had a lot of trouble with those gtk-windows and had to replace all of them with gtkdialog windows in my application, because I didn't manage to find, why gtkdialog is so special. And where is this *gtk_window_set_skip_taskbar_hint* used? I don't see it in your code. Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Clearing TreeView rows - how?
Hi, All! Is there any way to blank all rows in a treeview? Now I scan all cells and blank their contents sequentially. Hope that exists some better solution. Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Windows on top of fullscreened windows
Hi, All! There is hopefully a misunderstanding (I misunderstand) in a windows behaviour. When a daughter window (a normal Gtk::Window) is created and showed as transient for a parent window, it stayes ok upon the parent window. This seems to be in accordance with gtk+ and gtkmm documentations. But when the parent window is fullscreened, those daughter windows hide themselves under their parent window, whenever you try to touch them. Isn't it weird? And only if the daughter window is created as a dialog window (in addition to transient_for) it stays upon their parent window. What's so special in dialog windows? May be there is a way for using this unknown feature with normal (gtk_windows) windows? Those dialog windows have some annoying features... Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Smooth window resizing
Hi, All! I wonder if there is a way to resize a window gradually (as if animated) when a, for examle, set_size_request(...) is issued. Now the window is resized abruptly as a treeview is expanded (and that bothers the users). Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: How to hide the window cross and force a window to be first displayed ?
dupont durand wrote: [...] 2. I have several windows opened while my GUI is running. Some are hidden by other windows created later. How to force a given window to be the first one visible by the user ? ... For the moment, I have to select the desired window using the task bar ... You should use set_transient_for(...) to keep a window on top level. Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
win32 port of gtk+ -2.4.x
Hi, All! Now, as Todd Kulesza from http://www.dropline.net/gtk/ has dropped the development of his (hers?) GTK+ for Windows packages, would anyone explain, please, which (and how) packages I should use for gtk+ development under win32? Hopefully, Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: TreeView cell editing
James Pelletier wrote: I'm actually using the standard CellRendererText, but I would like my application to have a bit more controll over the gtk_entry while the cell is being edited. I can't seem to find any methods of any object that will return the gtk_entry so I can connect to some of its signals. It appears that your example is from a custom renderer. I wouldn't expect to have to subclass the renderer in order to do this. [...] Oh, yes, I've forgotten to say that it was the custom renderer, posted here about a year ago. I just thought that if you are smart enough (I'm not, or I would tell you the more valueable advice) then you'll get the idea and dig somewhat deeper into gtk_renderer stuff. Sorry that I've failed to be more helpful. Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: TreeView cell editing
James Pelletier wrote:
Is there a way to programatically determine if a cell in a tree view
is currently being edited or to get the text from the entry field used
for editing? More importantly, is there a way to force a cell that is
currently being edited to end editing?
[...]
Well, may it won't help (because I've done this on C++ in gtkmm), but
I've used the
focus_out event for gtk_entry in a cell renderer to end the editing
when user changes
focus while editing:
bool Combo_CellRenderer::on_focus_out(GdkEventFocus* event, Gtk::Entry*
entry,
Glib::ustring path)
{
if (!entry-is_focus())
on_edited(entry, path);
return false;
}
Igor Gorbounov
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Animation and GTK+
Hello! I urgently need an example of animation using GTK+. Please, help me! Hopefully, Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
GtkTree in testgtk
There is a testgtk demo program from gtk+-2.2.4. And it shows a Gtktree with lines between nodes. Who knows how it was done? I don't know where the sources are. Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: GtkTree in testgtk
Olexiy Avramchenko wrote: Igor Gorbounov wrote: There is a testgtk demo program from gtk+-2.2.4. And it shows a Gtktree with lines between nodes. Who knows how it was done? I don't know where the sources are. Igor Gorbounov As I can guess you're talking about deprecated GtkTree widget (testgtk tree menu item, right?). The lines can be turned on/off via gtk_tree_set_view_lines() call. The source is in testgtk.c, coming with tarball. [..] Yes, gtk_tree_set_view_line() is marked as depricated, but what came instead of it? It looks very nice... Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Plot graph widget
Pisanu Prasertnopakun wrote: Hello List, Now I try to use gtk2.2 to do an engineering application. I would like to plot a graph from my input over the time, so something like (t=0 x=0, t=1 x=2, t=2 x=4, t=3 x=8, t=4 x=5, and so on..). Can you suggest me which widget do this function? or should I find an extra library? I have found one gtkextra..http://gtkextra.sourceforge.net/ but I don't know how good it is. Have any of you an experince with this library? It's gtk-1 only, there is no gtk-2 port yet. Igor Gorbunov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Fullscreen+set_transient_for+Fedora
Hi, All! Early, on RedHat 9, windows (normal windows, no dialogs), that were set transient for a fullscreened parent window, were placed on top of that window. And now, on Fedora Core 1, their behavior has changed: all my transient windows are hiding itselves under their parent window - is that normal. I mean, they behave themselves just like it was disigned by developers of gtk (and gtkmm) or am I missing something? Anyway, is there a reliable method for placing non-dialog daughter windows above their parent window? Hopefully, Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
TreeView width?
Hi, All! Is there any reliable method for calculating the size of a filled TreeView before showing it, for proper setting the size of a window containing this treeview? get_width() for TreeViewColumns returns 0, get_width() for the treeview itself returns a significant lesser value, cell_get_size(...) returns very small widths, pango_layout gives the proper values for text size in cells, but it knows nothing about white spaces between columns and I have to scan all rows for every column to get the maximum size. So how normal folks are doing this? Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Word wrapping in a TreeView Cellrenderer
Hi, All! Can anybody give me a hint about subject? Have no clue at all myself... Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Printing in GTK+ environment
Hi, All! I need a hint about printing. I need some ways of printing for my plots (build by using GtkDrawingArea) and reports (build and viewed through GtkTreeView). No idea where to dig to... Hopefully, Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: [gtkmm] Printing in GTK+ environment
[EMAIL PROTECTED] wrote: From: Igor Gorbounov [mailto:[EMAIL PROTECTED] Hi, All! I need a hint about printing. I need some ways of printing for my plots (build by using GtkDrawingArea) and reports (build and viewed through GtkTreeView). No idea where to dig to... Hopefully, Igor Gorbounov I would investigate libgnomeprint and libgnomeprintui. Murray Cumming So it's not wraped for C++ yet... Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
horizontal_separator...
What do these GtkTreeView style properties (horizontal_separator, vertical_separator...) mean and how they can be changed (they seem to be read-only). Hopefully, Igor Gorbounov ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
