Re: Undefined method: PangoFontDescription::free()

Jon Dunlap wrote: > Hello: > > I am using PHP-Gtk2 to develop software to control a motorsports scoreboard. > I have the most recent versions of every piece of the puzzle (php-gtk2, GTK+ > bundle) and am running on WinXP 32-bit. > > Upon attempting to use the command $pfd -> free() on a PangoFontDescription > named $pfd, I encounter the error > > [17-Jul-2009 10:51:10] PHP Fatal error: Call to undefined method > PangoFontDescription::free() in D:\Documents and Settings ... on line 58 > > This command appears in all PHP-Gtk2 references. The docs are incorrect - it is not needed in PHP-GTK and does not exist Why does it remain > "undefined" to my compiler? The static pango_font_descriptions_free() is > also undefined, and I cannot ref() or unref() my PangoLayouts, either, even > though they are GObjects. PHP takes care of all refing, unrefing and freeing for you, you don't need any memory management calls with PHP-GTK (and they don't exist at the user level in PHP-GTK) > The need for these commands stems from an object I have defined, "Textbox", > which takes as input a width/height array, some text, a font family, and a > desired maximum font size. It creates a PangoFontDescription and a > PangoLayout and then resets the size of the PangoFontDescription downward > until the PangoLayout fits inside the width and height specified. The size > is checked via PangoLayout -> get_pixel_size. My program crashes after > several hundred resizings; when the resizing is omitted, my program can > create tens of thousands of Textboxes without incident. I surmise that it > is the font-resize---modify layout---get_pixel_size cycle that is causing > the crash. Are you sure? crashes are often hard to figure out - but I would suspect a memory problem if you're doing something that memory intensive. If you're worried about the memory try unsetting each object after you're through with it, this will cause PHP-GTK to call free on the fontdescription. If you have a small (20 line or less please) reproducing case, feel free to file a bug, but often in trying to get the reproduce case you'll find your problem is elsewhere ;) > Does anyone have an idea for a more efficient/less memory-intensive > algorithm? Is there a PHP-Gtk2 command I'm missing? > > Thanks for any assistance you can provide. > > Jon Thanks, Elizabeth Smith