GTK+ Forums

kingsz1 · Familiar Face Joined: 22 Nov 2006 Posts: 12

Hi, all.

I wish to enlarge the text font size in the button and label widgets. How to do ?

Thanks in advance.

Micah Carrick · Posted: Sun Jan 07, 2007 5:44 pm Post subject:

Well, first of all, you are very, very strongly adviced not to do so. User's have theme and preference settings which they won't like losing. For example, 6 years ago I would make my screen resolution really high and use small fonts-- since then my eyesight has gotten worse and my font sizes have gone up.

GTK+ deals with the defaults of fonts, colors, and sizes through RC files.
Here it is in the tutorial: http://www.gtk.org/tutorial/c2118.html
And herer it is in the API: http://developer.gnome.org/doc/API/2.2/gtk/gtk-Resource-Files.html

However, if you must change the font and size, you do so with Pango

Code: (Plaintext)
1 2 3 4 5 6 7 8 9 10 11	PangoFontDescription fd = NULL; GtkWidget w = NULL; /* code here to create widget or get it from glade / / change the widget's font / fd = pango_font_description_from_string ("Monospace 12"); gtk_widget_modify_font (w, fd); / display the widget or do whatever else you gotta do */

http://developer.gnome.org/doc/API/2.4/pango/pango-Fonts.html

kingsz1 · Familiar Face Joined: 22 Nov 2006 Posts: 12

Thank you so much.

I need to display some information clearly, such as the time, the amount of cash, etc. The large size of text is not in full screen, but just in certain label or button.

Micah Carrick · Posted: Mon Jan 08, 2007 5:44 pm Post subject:

In that case, you may want to instead use pango markup to simply make the font larger relative to the rest of the text. That way it's still in-line with the user's preferences...

Code: (Plaintext)
1 2	gtk_label_set_user_markup (label, TRUE); gtk_label_set_markup (label, "<big>This is a larger font</big>");

IckoPicko · Joined: 27 Mar 2007 Posts: 2

Is there any possibility to change only the font size? I want the font face to stay the same. I don't have the function gtk_label_set_markup. If i use

Code: (Plaintext)
1 2	fd = pango_font_description_from_string ("Monospace 12"); gtk_widget_modify_font (w, fd);

I have to know what font face to use. Can I get the font face from another function?

Thanks!

openldev · Posted: Tue Mar 27, 2007 6:59 pm Post subject:

You can get the current font description from the widgets's style with GTK_WIDGET(widget)->style->font_desc. Then use pango_font_description_set_size() to set just the size.

Vene · Familiar Face Joined: 31 Jan 2008 Posts: 5

my IDE don´t recognizes the pango_font_descripion. i use codeblocks in WindowsXP because i do an system for win and Linux, i know which windows sting but i don't choice. i don't wanna use markup. helps