RE: list of g_signal_connect options
I was wondering if someone could direct me to a list of all the options viable under g_signal_connect, such as clicked, destroy, realize etc. I couldn't find this online anywhere, and the only ones I know of are because of the gtk-demo. Thanks! The signals for each widget are listed in the GTK+ documentation. For instance, http://developer.gnome.org/doc/API/2.0/gtk/GtkButton.html Murray Cumming [EMAIL PROTECTED] www.murrayc.com ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: Help with focus/activation problems
On Mon, 2003-03-03 at 19:22, Carl B. Constantine wrote: I posted a message a couple days ago, but no answer so I'm going to post again with some additional info that may help. I have a window in which are several widgets, such as GtkEntry and GtkTextView, and GtkTreeView (list store). When I run my program, it seems that while I can click around and type text in the text entries and text views, or select items in the TreeView, the widgets never seem to become active, ie: the cursor does not blink in the text entries and selecting a row in the TreeView is the inactive color. If I right-click in the text view, or select an item from my GtkOptionMenu (of which no code exists for that callback, it's just empty right now) suddenly the widgets seem to become active, ie: the text cursor blinks in the text entries and text views, selecting a row in the GtkTreeView appears in the active highlight color. You mean you aren't calling: gtk_make_focus_work () ? [In case that isn't obvious, that's a joke]. The only thing I can think of that might make focus not work for a toplevel window is if you create it as type GTK_WINDOW_POPUP, which takes the window completely out of the normal X system. Other than that, you've discovered some bug in your window manager or in GTK+. You'll need to create the smallest possible standalone test case that reproduces the problem, and provide that so we can figure out what you are doing differently than everybody else. Regards, Owen ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: glib and threads
On Mon, 2003-03-03 at 06:53, Sebastian Ley wrote: Hello, will the configure switch --enable-threads in glib one time enabled, the other time disabled produce two binary compatible libraries or will they have a different ABI? Please CC me in your replies, since I am not subscribed. They should be ABI compatible. (Note that --enable-threads is the default, and I don't expect that --disable-threads will produce a result that is either significantly smaller or significantly faster.) Regards, Owen ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Quick newbie question
Hey everyone, I am just starting to get into GTK+ programming, So far I am doing pretty well but I am stuck at a certain point. I want to have a text entry and then a button to submit the information - lets just say when you hit submit, it pops up a new window that shows the information you had in the box. My problem is that I can't find out how to access the data from the text entry, once the clicked signal is received from the button. Can anyone help me out here? Thanks, Ben LeMasurier _ MSN 8 with e-mail virus protection service: 2 months FREE* http://join.msn.com/?page=features/virus ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
CellRenderText properties question.
The Gnome 2.0 porting docs contain the following information on the GtkCellRender widget (under new widgets in the docs): * Cell renderer properties can be set per-renderer or per-cell (based on data in the model). So for example, the text renderer has a foreground property for the foreground color. You could set the foreground color globally for an entire column, or you could have the foreground property change per-cell according to data in the model. * For a given cell renderer, multiple fields in the model can affect it. For example, if your mail client model has a boolean field indicating unread message, and a string field indicating subject, you can set the bold property of the cell from the unread flag and the text property of the cell from the subject. Looking at the API docs for GtkCellRender and GtkCellRenderText, I see the following description under gtk_cell_renderer_text_new (): ...Also, with GtkTreeViewColumn, you can bind a property to a value in a GtkTreeModel. For example, you can bind the text property on the cell renderer to a string value in the model, thus rendering a different string in each row of the GtkTreeView. However, I can't really find any code examples of how to do anything suggested in these docs. For example, I have a GtkTextView that only has a single column in it. When I click a button in my window, I want to find out the current selection in that TreeView and set it's text to Red or Bold or something. I can't seem to find anything that shows how to get the exact cell and then change its attributes. I can do it globably for a column (and have for testing) but not on a single cell. These docs seem to imply that I need some further data in my cell model to apply an attribute to. So, it seems like I have to have an extra invisible column in my model that holds text attributes, update the column text with a new string (say to red from black in order for the text in the visible column to have the attribute change. This seems very confusing to me. The docs say based on data in the model but it's not clear what that means, if it's actual attributes stored in the model, or just change based on a programmatic condition (col 1 is true so set text to bold). How can I change attributes on a single cell without having extra data in my model or do I really need the extra data in my model? I'm sure I'm missing something obvious but the docs are confusing. Also, storing extra attribute data in my ListStore adds memory overhead. Additionally, I see this description for gtk_tree_view_column_cell_set_cell_data: Sets the cell renderer based on the tree_model and iter. That is, for every attribute mapping in tree_column, it will get a value from the set column on the iter, and use that value to set the attribute on the cell renderer. I'm sorry but that's not very clear, and in fact it's extremely confusing. Maybe RedHat could hire me as a technical writer (I have several years experience at this and worked for Metrowerks as a professional technical writer). Any help is greatly appreciated. -- .''`. Carl B. Constantine : :' : [EMAIL PROTECTED] `. `'GnuPG: 135F FC30 7A02 B0EB 61DB 34E3 3AF1 DC6C 9F7A 3FF8 `- Debian GNU/Linux -- The power of freedom pgp0.pgp Description: PGP signature
Re: Quick newbie question
a text entry and then a button to submit the information - lets just say when you hit submit, it pops up a new window that shows the information you had in the box. My problem is that I can't find out how to access the data from the text entry, once the clicked signal is received from the button. Can anyone help me out here? gtk_entry_get_text(), IIRC. ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: CellRenderText properties question.
Carl B. Constantine wrote: ...Also, with GtkTreeViewColumn, you can bind a property to a value in a GtkTreeModel. For example, you can bind the text property on the cell renderer to a string value in the model, thus rendering a different string in each row of the GtkTreeView. When you add a column to your view, you put ..., text, COL, ... to show the text from model column COL in the currently being added column. The same is with background and foreground attributes, and the pointed columns must contain a colour name (as string: red, blue, etc). However, I can't really find any code examples of how to do anything suggested in these docs. For example, I have a GtkTextView that only has a single column in it. When I click a button in my window, I want to find out the current selection in that TreeView and set it's text to Red or Bold or something. I can't seem to find anything that shows how to get the exact cell and then change its attributes. I can do it globably for a column (and have for testing) but not on a single cell. I posted an example a couple of days ago. Just a code snippet from one of my projects, but should give you the idea. You have to add a column for every attribute. ... If only it could be possible to map values to attributes (1=red, 2=blue and so on...) BYtE, Diego. ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: CellRenderText properties question.
Hi, Carl B. Constantine [EMAIL PROTECTED] writes: However, I can't really find any code examples of how to do anything suggested in these docs. For example, I have a GtkTextView that only has a single column in it. When I click a button in my window, I want to find out the current selection in that TreeView and set it's text to Red or Bold or something. I can't seem to find anything that shows how to get the exact cell and then change its attributes. I can do it globably for a column (and have for testing) but not on a single cell. the API reference is not exactly the place where you'd look for code examples. The gtk-demo as found in the demos directory of the GTK+ source tree seems like a good place to look for such examples. These docs seem to imply that I need some further data in my cell model to apply an attribute to. So, it seems like I have to have an extra invisible column in my model that holds text attributes, update the column text with a new string (say to red from black in order for the text in the visible column to have the attribute change. This seems very confusing to me. The docs say based on data in the model but it's not clear what that means, if it's actual attributes stored in the model, or just change based on a programmatic condition (col 1 is true so set text to bold). How can I change attributes on a single cell without having extra data in my model or do I really need the extra data in my model? I'm sure I'm missing something obvious but the docs are confusing. Also, storing extra attribute data in my ListStore adds memory overhead. of course you need the extra data. You want to display additional information, where should it come from if not from the model? Of course you can write your own custom cell renderer which calculcates the information for each cell but unless you want to do that, you need an extra column in your model. Please note that the model columns don't necessarily correspond to the view columns. It thus doesn't make any sense to speak of an invisible column in a model. Salut, Sven ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: CellRenderText properties question.
* Diego Zuccato ([EMAIL PROTECTED]) wrote: Carl B. Constantine wrote: ...Also, with GtkTreeViewColumn, you can bind a property to a value in a GtkTreeModel. For example, you can bind the text property on the cell renderer to a string value in the model, thus rendering a different string in each row of the GtkTreeView. When you add a column to your view, you put ..., text, COL, ... to show the text from model column COL in the currently being added column. The same is with background and foreground attributes, and the pointed columns must contain a colour name (as string: red, blue, etc). Thanks for the reply. That confirms what I suspected, but IMHO very bad design as it creates extra overhead for memory and storage in the TreeModel (ListStore in this case) instead of being able to determine the property programatically. What if I have a preference setting where the user change pick a color so it's not just red or blue it's between blue and purple? However, I can't really find any code examples of how to do anything suggested in these docs. For example, I have a GtkTextView that only has a single column in it. When I click a button in my window, I want to find out the current selection in that TreeView and set it's text to Red or Bold or something. I can't seem to find anything that shows how to get the exact cell and then change its attributes. I can do it globably for a column (and have for testing) but not on a single cell. I posted an example a couple of days ago. Just a code snippet from one of my projects, but should give you the idea. You have to add a column for every attribute. or add multiple attributes to the column with gtk_tree_view_column_add_attribute(). But this means I have to add a column to the model and then hide it after it's appended to the view right? ... If only it could be possible to map values to attributes (1=red, 2=blue and so on...) or have a hex value that can then be used for the color. Then a user can use the color selector to pick a color for certain cells. However, I find that interface rather awkward to use in that instance, again because it can't be determined programatically or you have to change the column the cell looks at on the fly which is awkward. -- .''`. Carl B. Constantine : :' : [EMAIL PROTECTED] `. `'GnuPG: 135F FC30 7A02 B0EB 61DB 34E3 3AF1 DC6C 9F7A 3FF8 `- Debian GNU/Linux -- The power of freedom pgp0.pgp Description: PGP signature
Re: CellRenderText properties question.
Hi, Carl B. Constantine [EMAIL PROTECTED] writes: Thanks for the reply. That confirms what I suspected, but IMHO very bad design as it creates extra overhead for memory and storage in the TreeModel (ListStore in this case) instead of being able to determine the property programatically. What if I have a preference setting where the user change pick a color so it's not just red or blue it's between blue and purple? noone said you have to store the color as string. You could for example have model column that holds a GdkColor which would give you 16 bit per color channel and I suspect that's more fine-grained than you'll ever need it to be. or add multiple attributes to the column with gtk_tree_view_column_add_attribute(). But this means I have to add a column to the model and then hide it after it's appended to the view right? However, I find that interface rather awkward to use in that instance, again because it can't be determined programatically or you have to change the column the cell looks at on the fly which is awkward. you shouldn't judge on an API that you obviously did not understood. Salut, Sven ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: CellRenderText properties question.
* Sven Neumann ([EMAIL PROTECTED]) wrote: the API reference is not exactly the place where you'd look for code examples. The gtk-demo as found in the demos directory of the GTK+ source tree seems like a good place to look for such examples. I didn't look there, I looked at the various examples that come with GTK. of course you need the extra data. You want to display additional information, where should it come from if not from the model? Of course you can write your own custom cell renderer which calculcates the information for each cell but unless you want to do that, you need an extra column in your model. Please note that the model columns don't necessarily correspond to the view columns. It thus doesn't make any sense to speak of an invisible column in a model. Yes, I suppose that's correct. I'm a bit confused as you create the column with gtk_tree_view_column_new (or gtk_tree_view_column_new_with_attributes) and then call gtk_tree_view_append_column to append it to the tree view, at least for the view. However, I gather I would call gtk_list_store_new with the extra column (or columns) so I have a place in the store to save my data, but the view doesn't show it. This makes sense now that you point that out. I was doing a 1:1 mapping between the TreeModel (ListStore in my case) and the TreeView but it doesn't have to be such. Thanks for the help! -- .''`. Carl B. Constantine : :' : [EMAIL PROTECTED] `. `'GnuPG: 135F FC30 7A02 B0EB 61DB 34E3 3AF1 DC6C 9F7A 3FF8 `- Debian GNU/Linux -- The power of freedom pgp0.pgp Description: PGP signature
Re: gtk_entry_get_text() - having problems with return type
Hi, On Wed, 5 Mar 2003, Ben LeMasurier wrote: warning: assignment makes pointer from integer without a cast gethostbyname() requests a char * and gtk_entry_get_text() returns G_CONST_RETURN gchar* According to the glib docs, a G_CONST_RETURN gchar* is typedef'ed to a char* (See glib, basic types in the docs). But, as it stresses in the gtk_entry_get_text (), you shouldn'tfree, modify, or store it. I think I malloc'ed a temporary variable of type char * and did a strcpy and that worked fine. Just don't try storing it with an assignment... Ray ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: GtkTextView Questions -- please help! =]
Hi, On Mon, 3 Mar 2003, Arash Nikkar wrote: 1) I have created a window, with 2 textviews within it. Now I initialized the textviews the same way, but the top one is about 1/3 of the window, while the bottom is 2/3. I was wondering how i could set them to be the same length. This has to do with the container widget (hbox, vbox, table, whatever) you put them in and the options that you set. You should take a look at the container docs or tutorial. 2) I have a scrolled window within both of the textviews, and i insert text line by line. For some reason, the scrollbars don't scroll down as text is inserted into the textviews. They have to be manually scrolled down. I was wondering if there is some way to fix that. The scrolled window has vertical adjustments associated with it. If you want it to follow the text, you might have to manually get the adjustments, change it accordingly, and go to it. I'm not entirely sure as I tend to put all my text in a char buffer and then put the buffer at one time -- much faster. Anyway, take a look at the documentation to scrolled windows and it should lead you to a GTKAdjustment data structure which you can read. 3) Is there anyway to set the attribute of a textview so that it will word wrap text that IS TYPED into the textview. I know how to word wrap text that you insert into a textview, but I cant figure out how to word wrap text that a user enters into the textview. ...I don't know what you mean but manually, perhaps? That is, when a user hits the Enter key, you add the \n character to the buffer. Ray ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
checking for a blank box?
hello, What value do I compare the output of gtk_editable_get_text() with in order to know if the entry box I'm getting text from is empty or not? I'm using an if statement and have tried to do If (gtk_editable_get_text(entry,0,-1) == NULL) and it won't make the match even when I don't input anything into the entry box. I've also tried comparing to '\0' and 32 (ascii value for a space) and nothing ever matches. how do i check if a user has inputted anything? The reason i need to do this is that when I convert the empty char value to an int a 0 is always returned and since a 0 is a valid value in my program I dont want someone to be able to do nothing and still get valid results because of the 0 being returned without user input. I'm doing my comparison w/o doing the conversion to int and I thought a simple If statement comparing the function I'm using to NULL would work but it's not. thanks for any help brandon ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: gtk_entry_get_text() - having problems with return type
Well, I tried to do an strcpy() on the string but I am still getting a segfault when I try to access it, I also get the same compile time error as before - I don't understand why it is telling me assignment makes pointer from an integer either. better get the coffee out, this might be a long night for me. thanks, Ben Hi, On Wed, 5 Mar 2003, Ben LeMasurier wrote: warning: assignment makes pointer from integer without a cast gethostbyname() requests a char * and gtk_entry_get_text() returns G_CONST_RETURN gchar* According to the glib docs, a G_CONST_RETURN gchar* is typedef'ed to a char* (See glib, basic types in the docs). But, as it stresses in the gtk_entry_get_text (), you shouldn'tfree, modify, or store it. I think I malloc'ed a temporary variable of type char * and did a strcpy and that worked fine. Just don't try storing it with an assignment... Ray _ Protect your PC - get McAfee.com VirusScan Online http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963 ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
Re: CellRenderText properties question.
On Tue, 2003-03-04 at 17:51, Sven Neumann wrote: How can I change attributes on a single cell without having extra data in my model or do I really need the extra data in my model? I'm sure I'm missing something obvious but the docs are confusing. Also, storing extra attribute data in my ListStore adds memory overhead. of course you need the extra data. You want to display additional information, where should it come from if not from the model? Of course you can write your own custom cell renderer which calculcates the information for each cell but unless you want to do that, you need an extra column in your model. Please note that the model columns don't necessarily correspond to the view columns. It thus doesn't make any sense to speak of an invisible column in a model. It should be pointed out here that if you _do_ want to calculate things per-cell, then there's a much easier way to do it than to write your own renderer - use: http://developer.gnome.org/doc/API/2.2/gtk/GtkTreeViewColumn.html#gtk-tree-view-column-set-cell-data-func This is gives you a callback to calculate the properties, usually from an application-specific data structure you store in a treeviewcolumn (you can use G_TYPE_POINTER or register your own type with g_boxed_type_register_static()) Regards, Owen ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
can you do multiple g_signal_connects?
Hi Everyone, I want multiple methods to be called when a widget is destroyed. So I was wondering if this would work: g_signal_connect (window, destroy, G_CALLBACK (free_buffers), temp); g_signal_connect (window, destroy, G_CALLBACK (gtk_widget_destroyed), window); so when the window is destroyed, gtk takes care of its stuff, and i take care of mine. Thanks! -- Arash Nikkar [EMAIL PROTECTED] ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
