http://permalink.gmane.org/gmane.comp.lib.clutter hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://permalink.gmane.org/gmane.comp.lib.clutter/4958 <pre>Emmanuele, Thanks for your quick response. I'll definitely try to use a ring buffer. ciao :), Stefano 2012/5/17 Emmanuele Bassi &lt;ebassi&lt; at &gt;linux.intel.com&gt; _______________________________________________ clutter-app-devel-list mailing list clutter-app-devel-list&lt; at &gt;clutter-project.org http://lists.clutter-project.org/listinfo/clutter-app-devel-list </pre> stefano candori 2012-05-17T13:56:21 http://permalink.gmane.org/gmane.comp.lib.clutter/4957 <pre> you're essentially creating a texture of 8000 pixels. that is *not* a good plan: depending on the GPU manufacturer, model, and driver, you are going to hit the maximum texture size either *way* sooner than that, or at about 8192 pixels. there is a limit on how big (on any axis) a single GL texture is going to be, and CairoTexture uploads the content of an image surface to a GL texture. an image surface of 8k pixels is also a pretty wrong choice at the Cairo level. my suggestion is that you should break down the size of your drawable surface, and then use a ring buffer to replace its contents. and, finally, CairoTexture is deprecated in favour of the ClutterCanvas content object; this does not change the limitation on the texture size. ciao, Emmanuele. </pre> Emmanuele Bassi 2012-05-17T13:31:43 http://permalink.gmane.org/gmane.comp.lib.clutter/4956 <pre>Hello everybody, My name is Stefano Candori and I'm the maintainer of the GNOME Activity Journal. In these days i'm trying to revamp it but I'm stuck with a problem. Let me explain: I'm trying to implement a sort of scrollable timeline using a ClutterCairoTexture to paint a long line (similar to the Facebook one) in the center of the stage. The strange thing is that the line is painted only if its height (the height of the clutter actor) is less than about 8000. When in "get_preferred_height" I set a natural_height and a minimum height of 9000-10000, the line is not painted. What I'm doing wrong? Is there a limit for the height of an ClutterCairoTexture? I don't think so, but I can't find the error. Here's the code: private class Journal.VTimeline : Clutter.CairoTexture { private Gee.ArrayList&lt;int&gt; point_circle; private const int len_arrow = 20; // hardcoded private const int arrow_origin = 30; private const int timeline_width = 2; private const int radius = 6; public VTimeline ()</pre> stefano candori 2012-05-17T11:25:12 http://permalink.gmane.org/gmane.comp.lib.clutter/4955 <pre>I'm just wondering if it's ok to use openCL/cuda, or openMP in a clutter project. Specifically I want to use in a function launched by clutter_threads_add_timeout. Thanks _______________________________________________ clutter-app-devel-list mailing list clutter-app-devel-list&lt; at &gt;clutter-project.org http://lists.clutter-project.org/listinfo/clutter-app-devel-list </pre> Tyson Neuroth 2012-05-16T14:40:17 http://permalink.gmane.org/gmane.comp.lib.clutter/4953 <pre>Oh, well I guess that settles it then. Cheers. On Tue, May 15, 2012 at 5:33 PM, Lionel Landwerlin &lt;llandwerlin&lt; at &gt;gmail.com&gt; wrote: _______________________________________________ clutter-app-devel-list mailing list clutter-app-devel-list&lt; at &gt;clutter-project.org http://lists.clutter-project.org/listinfo/clutter-app-devel-list </pre> Amy C 2012-05-15T11:55:30 http://permalink.gmane.org/gmane.comp.lib.clutter/4952 <pre> Subclassing GObject classes in GJS has been introduced in GJS 1.32, which ships with Gnome 3.4. So prior to Gnome 3.4, you can't do that. _______________________________________________ clutter-app-devel-list mailing list clutter-app-devel-list&lt; at &gt;clutter-project.org http://lists.clutter-project.org/listinfo/clutter-app-devel-list </pre> Lionel Landwerlin 2012-05-15T07:33:49 http://permalink.gmane.org/gmane.comp.lib.clutter/4951 <pre>Hi all, I'm trying to create a custom class that is a Clutter.Clone plus some extra methods. I'm using the GNOME javascript bindings (from gobject introspection) to do this, and am having difficulty getting the inheritance working properly. I asked around at stackoverflow about this sort of thing first to avoid spamming the list with javascript questions, but the answers given there did not work on the Clutter classes, so I'm asking here. First, in GNOME 3.4 I can do: Toon = new Lang.Class({ // Lang is imports.lang Name: 'Toon', Extends: Clutter.Clone, other methods here. }); This works fantastic - if I do `var toon = new Toon( a_clutter_texture );` everything works fine. However in GNOME 3.2 the `Lang.Class` method doesn't seem to be there, and in my asking around I've been told the "standard" way to make a subclass in JS is like so: Toon = function() { Clutter.Clone.call(this,arguments); // this gives Toon all the properties/methods of Clutter.Clone // toon-specific initialisation</pre> Amy C 2012-05-15T01:11:40 http://permalink.gmane.org/gmane.comp.lib.clutter/4950 <pre>Hello everybody, My name is Stefano Candori and I'm the maintainer of the GNOME Activity Journal. In these days i'm trying to revamp it but I'm stuck with a problem. Let me explain: I'm trying to implement a sort of scrollable timeline using a ClutterCairoTexture to paint a long line (similar to the Facebook one) in the center of the stage. The strange thing is that the line is painted only if its height (the height of the clutter actor) is less than about 8000. When in "get_preferred_height" I set a natural_height and a minimum height of 9000-10000, the line is not painted. What I'm doing wrong? Is there a limit for the height of an ClutterCairoTexture? I don't think so, but I can't find the error. Here's the code: private class Journal.VTimeline : Clutter.CairoTexture { private Gee.ArrayList&lt;int&gt; point_circle; private const int len_arrow = 20; // hardcoded private const int arrow_origin = 30; private const int timeline_width = 2; private const int radius = 6; public VTimeline ()</pre> Stefano Candori 2012-05-14T13:05:06 http://permalink.gmane.org/gmane.comp.lib.clutter/4949 <pre> i'm in fact using 1.10.0, thanks. i'll update my code when the newer clutter version is officially available for my system (Ubuntu 12.04)! _______________________________________________ clutter-app-devel-list mailing list clutter-app-devel-list&lt; at &gt;clutter-project.org http://lists.clutter-project.org/listinfo/clutter-app-devel-list </pre> Moritz Renftle 2012-05-14T14:44:37 http://permalink.gmane.org/gmane.comp.lib.clutter/4948 <pre> ugh, right - we use the Actor get_preferred_* wrappers, so it's going to hit the cache/explicitly set size. which is another trap of the Clone class, in case you wish to clone an actor and use its preferred size instead of the one explicitly set. ciao, Emmanuele. </pre> Emmanuele Bassi 2012-05-14T13:15:22 http://permalink.gmane.org/gmane.comp.lib.clutter/4947 <pre> a Clone has no implicit size, so it'll use the preferred size of the source; a Rectangle has not implicit size, so its preferred size is 0x0. in short, you have to give the Clone a size as well. ciao, Emmanuele. </pre> Emmanuele Bassi 2012-05-14T12:50:22 http://permalink.gmane.org/gmane.comp.lib.clutter/4946 <pre>D'oh! Thanks, that works perfectly :) _______________________________________________ clutter-app-devel-list mailing list clutter-app-devel-list&lt; at &gt;clutter-project.org http://lists.clutter-project.org/listinfo/clutter-app-devel-list </pre> Amy C 2012-05-14T12:41:34 http://permalink.gmane.org/gmane.comp.lib.clutter/4945 <pre> replace previous line by : let clone = new Clutter.Clone({ source: rect }); _______________________________________________ clutter-app-devel-list mailing list clutter-app-devel-list&lt; at &gt;clutter-project.org http://lists.clutter-project.org/listinfo/clutter-app-devel-list </pre> Lionel Landwerlin 2012-05-14T12:38:24 http://permalink.gmane.org/gmane.comp.lib.clutter/4944 <pre>Hi all, I've successfully made a Clutter.Texture &amp; displayed it, and am trying to now make a Clutter.Clone of it and display that. However, the Clutter.Clone does not appear on the window (the Texture does). Here is a minimal working example of my code using Clutter.Rectangle instead of Clutter.Clone (for ease of running). I'm using Clutter's gobject introspection bindings (in javascript in my case). Could anyone tell me why the first Clutter.Rectangle is visible, but I can't see its Clutter.Clone? cheers! -------------- START CODE (can run with `gjs file.js`) ---------------- const Clutter = imports.gi.Clutter; Clutter.init(null); var Stage = Clutter.Stage.new(); Stage.set_size( 200, 200 ); Stage.show() /* create a rectangle */ let blue = new Clutter.Color({blue: 255, red:0, green:0, alpha:255}); let rect = new Clutter.Rectangle(); rect.set_color( blue ); rect.set_size( 50, 50 ); rect.set_position( 20, 20 ); Stage.add_actor( rect ); rect.show(); // this works; I can see the rectangle /* create a clo</pre> Amy C 2012-05-14T12:30:44 http://permalink.gmane.org/gmane.comp.lib.clutter/4943 <pre> this should not be needed, unless when using 1.10.0 - removal on completion takes repeats into account. the bug has been fixed in 1.10.2. strictly speaking, it does not hurt: if you're continuously repeating then the animation will be automatically reaped when destroying the actor; but if you want to stop the animation by setting repeat-count to 0, you'll have to set remove_on_completed() back to True before changing the repeat count, to avoid leaking the transition. ciao, Emmanuele. </pre> Emmanuele Bassi 2012-05-14T10:35:22 http://permalink.gmane.org/gmane.comp.lib.clutter/4942 <pre> use the animation API that is provided exactly for this use case. http://developer.gnome.org/clutter/stable/ClutterActor.html#ClutterActor-animation I also recommend reading the Clutter Cookbook, which is available on the Clutter website. ciao, Emmanuele. </pre> Emmanuele Bassi 2012-05-14T10:21:39 http://permalink.gmane.org/gmane.comp.lib.clutter/4941 <pre>I think you can use clutter animation to do that Mit freundlichen Grüßen / Best regards BeQIK Charles / Chen Kai RBAC/CM/ESW1-CN -----Original Message----- From: clutter-app-devel-list-bounces&lt; at &gt;clutter-project.org [mailto:clutter-app-devel-list-bounces&lt; at &gt;clutter-project.org] On Behalf Of david.sale.75 Sent: Monday, May 14, 2012 2:12 PM To: clutter-app-devel-list&lt; at &gt;clutter-project.org Subject: Re: Can not get actor width in the thread ? Thanks Lionel, Chen Kai for reply, I mean to create OSD scroll from right To left effect, that must often change X coordinate and the words . If clutter API Is not thread safe, with what method is better? Now I modify the code, can let clutter_text moving to the left, but how to Change the dynamic of thread safe text and get actor width? #include &lt;glib.h&gt; #include &lt;clutter/clutter.h&gt; ClutterActor *gStage, *acttext=NULL; static gboolean osdtextchang=FALSE; static gchar *vgaosdtext=NULL; ClutterColor white = {255, 255, 255, 255}; ClutterColor black = {0, 0, 0, 0}; </pre> Chen Kai (CM/ESW1-CN 2012-05-14T06:22:45 http://permalink.gmane.org/gmane.comp.lib.clutter/4940 <pre>Thanks Lionel, Chen Kai for reply, I mean to create OSD scroll from right To left effect, that must often change X coordinate and the words . If clutter API Is not thread safe, with what method is better? Now I modify the code, can let clutter_text moving to the left, but how to Change the dynamic of thread safe text and get actor width? #include &lt;glib.h&gt; #include &lt;clutter/clutter.h&gt; ClutterActor *gStage, *acttext=NULL; static gboolean osdtextchang=FALSE; static gchar *vgaosdtext=NULL; ClutterColor white = {255, 255, 255, 255}; ClutterColor black = {0, 0, 0, 0}; static gpointer vgaosd_left(gpointer data) { gfloat wc, wx, ww; wx = wc = 650; while (1) { if (vgaosdtext==NULL) { usleep(500); continue; } if (g_strcmp0(vgaosdtext, "")==0) { usleep(500); continue; } osdtextchang = FALSE; clutter_text_set_text(CLUTTER_TEXT(acttext), vgaosdtext); //if use clutter_actor_get_width(acttext); //Pango:ERROR:pango-layout.c:3743:pango_layout_check_lines: assertion </pre> david.sale.75 2012-05-14T06:12:01 http://permalink.gmane.org/gmane.comp.lib.clutter/4939 <pre>On Sun, May 13, 2012 at 11:38 AM, Lionel Landwerlin &lt;llandwerlin&lt; at &gt;gmail.com&gt; wrote: Thanks for the response. After I sent the previous email I also thought of creating a ClutterTexture from file &amp; using get_cogl_texture. However, although `texture.get_cogl_texture` is a function, it seems to return `undefined` as its result always. I do have the Cogl namespace available and loaded. This is even with the texture loading synchronously, and I can verify it loaded because if I add the texture to a stage and display it, it displays the image as I expect. I'm not sure why it is returning undefined. (the texture is a .xpm if that helps any). Although I do notice that this function returns a Cogl.Handle and the Cogl namespace available to me through gobject introspection doesn't appear to have a 'Cogl.Handle' object. I guess it could be another bindings problem. I'll have a go at Clutter.Clone &amp; see how it goes. Thanks for the feedback! I'm anticipating penguins running over my screen any time now! ______________</pre> Amy C 2012-05-14T03:49:57 http://permalink.gmane.org/gmane.comp.lib.clutter/4938 <pre>acttext = clutter_text_new_full("Monospace 20", (gchar*)data , &amp;white); ==&gt; to split these lines: clutter_text_set_font_name(CLUTTER_TEXT(acttext), "Monospace 20"); clutter_text_set_color(CLUTTER_TEXT(acttext), &amp;white); // clutter_text_set_text() will raise pango problem, cause segmentation fault clutter_text_set_text(CLUTTER_TEXT(acttext), "text"); the result is: in thread function the text will have pango problem. But if you had already used/load such " Monospace 20" font in main thread (clutter_text_new_full and clutter_actor_get_width), it'll be ok in the new thread. So the clutter library may not thread safe. Mit freundlichen Grüßen / Best regards BeQIK Charles RBAC/CM/ESW1-CN -----Original Message----- From: clutter-app-devel-list-bounces&lt; at &gt;clutter-project.org [mailto:clutter-app-devel-list-bounces&lt; at &gt;clutter-project.org] On Behalf Of david.sale.75 Sent: Saturday, May 12, 2012 1:29 PM To: clutter-app Subject: Can not get actor width in the thread ? Hi, all: I write a test demo, use clutter_actor_get</pre> Chen Kai (CM/ESW1-CN 2012-05-14T01:58:05 http://permalink.gmane.org/gmane.comp.lib.clutter/4937 <pre>The clutter API is not thread safe. You just can't do stuff like that. -- Lionel On Sat, 2012-05-12 at 13:28 +0800, david.sale.75 wrote: _______________________________________________ clutter-app-devel-list mailing list clutter-app-devel-list&lt; at &gt;clutter-project.org http://lists.clutter-project.org/listinfo/clutter-app-devel-list </pre> Lionel Landwerlin 2012-05-13T01:45:06 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.lib.clutter