Hi there, I would like to display jpeg images using pure gtk instead of using imlib or gdk-pixbuf, because I want to keep my code as small as possible. As I know that imlib is quite big, and gdk-pixbuf contains gnome both of which I intend not to use them. I have done that using GTK to display RGB images, but have not idea on how show jpeg images using GTK. Does anyone know that is pure GTK is able to do that? Thanks! David -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Friday, January 12, 2001 1:05 AM To: [EMAIL PROTECTED] Subject: gtk-list digest, Vol 1 #308 - 11 msgs Send gtk-list mailing list submissions to [EMAIL PROTECTED] To subscribe or unsubscribe via the World Wide Web, visit http://mail.gnome.org/mailman/listinfo/gtk-list or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than "Re: Contents of gtk-list digest..." Today's Topics: 1. Re: [Fwd: GTK+ without X] (Thomas Haeberli) 2. Display helloworld in Chinese? (Jin Chen) 3. Re: GTK tooltips theming fixed? (Owen Taylor) 4. Re: [Fwd: GTK+ without X] (Havoc Pennington) 5. Re: GTK tooltips theming fixed? (Neil Bird) 6. Theme/Style support in an unknown environment... (John Schmerge) 7. Re: Pixmap question (Colin Thomas) 8. Confused about canvas size and gtk without X (Billy Patton) 9. Re: Pixmap question (John Cupitt) 10. GdkCursor reset (Dugas, Alan) 11. Re: GdkCursor reset (Mark Leisher) --__--__-- Message: 1 From: Thomas Haeberli <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] Date: Wed, 10 Jan 2001 23:08:35 +0100 charset="us-ascii" Cc: Eric Bustarret <[EMAIL PROTECTED]>, [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: Re: [Fwd: GTK+ without X] Am Montag, 8. Januar 2001 20.04 schrieben Sie: > Hi all, > > I have a couple of very nasty questions for people out there... > > 1. Does anybody out there know if it is possible to compile glib & gtk+ > using a c++ compiler? > > 2. If the above cannot be done, does anybody have any experience w/ > integrating c++ code that uses the language's exception handling > capabilities w/ gtk+ -- I am starting to run into nasty problems of hav= ing > a program core dump whenever an exception is thrown from a c++ code > fragment that is called from the gtk mainloop... There's a Toolbox called wxWindows. It's a very usefull Toolbox, sometimes easyer then GTK+ himself ;) go to http://www.wxwindows.org and then you can download the wxGTK+. And some of the default Dialogs are replaced throug the Style from the Windows Platform. --=20 so long Ranma-kun http://ranma.gargoyles.ch http://anime.gargoyles.ch http://www.gargoyles.ch --__--__-- Message: 2 Date: Tue, 09 Jan 2001 11:56:04 -0800 From: Jin Chen <[EMAIL PROTECTED]> Organization: CompanionLink To: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] Subject: Display helloworld in Chinese? boundary="------------E950F12A9CF14077415C6746" This is a multi-part message in MIME format. --------------E950F12A9CF14077415C6746 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit --------------E950F12A9CF14077415C6746 Content-Type: text/plain; charset=us-ascii; name="ss" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="ss" I am learning GTK and tried to display helloworld in Chinese. I inputted the Chinese translation on another machine and compiled on my machine. Everything is fine except that it can't display chinese words on a button and can't input a chinese word in a textbox So We are installing chinese cxterm on my desktop (linux system ) in order to dispaly it in Chinese. So we download the cxterm from http://www.europe.redhat.com/documentation/HOWTO/Chinese-HOWTO-4.php3 and followed the instructions to install it under the account /home/jin. The Chinese fonts(/home/jin/xfonts) and cxterm(/home/jin/bin) were installed properly and verified. We also added their paths like xset fp+ /home/jin/xfonts. But when we run CXterm, we were told : Cannot identify a chinese font in the X Window system. We ran xlsfonts and there is a list of corresponding fonts there. We don't know what's the problem? We would like to hear your idead. --------------E950F12A9CF14077415C6746-- --__--__-- Message: 3 To: GTK Mailing List <[EMAIL PROTECTED]> Subject: Re: GTK tooltips theming fixed? From: Owen Taylor <[EMAIL PROTECTED]> Date: 10 Jan 2001 18:10:36 -0500 Neil Bird <[EMAIL PROTECTED]> writes: > Despite all the thmese I have 'setting' a tooltip theme, it's never > used: the tooltip window comes up with the default GtkWindow theme, > unadorned & hence often near invisible. > > Putting 'widget "gtk-tooltips" style "default"' on the end of each > theme's gtkrc does the job, but it seems that that shouldn't be necessary. > Looking in the archives, there's mention of tooltip theming becoming > broken at some point, and it seems as if it wasn't fixed. Tooltip theming isn't broken.... All you have to know is that tooltips aren't a special widget, they just create a GtkWindow with a name "gtk-tooltips" So, it's a little different from other widgets, but in not a bug. Owen --__--__-- Message: 4 To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED], Eric Bustarret <[EMAIL PROTECTED]> Subject: Re: [Fwd: GTK+ without X] <[EMAIL PROTECTED]> <01011023083501.00650@jubei> From: Havoc Pennington <[EMAIL PROTECTED]> Date: 10 Jan 2001 19:36:25 -0500 Thomas Haeberli <[EMAIL PROTECTED]> writes: > Am Montag, 8. Januar 2001 20.04 schrieben Sie: > > Hi all, > > > > I have a couple of very nasty questions for people out there... > > > > 1. Does anybody out there know if it is possible to compile glib & gtk+ > > using a c++ compiler? > > > > 2. If the above cannot be done, does anybody have any experience w/ > > integrating c++ code that uses the language's exception handling > > capabilities w/ gtk+ -- I am starting to run into nasty problems of having > > a program core dump whenever an exception is thrown from a c++ code > > fragment that is called from the gtk mainloop... > > > There's a Toolbox called wxWindows. > It's a very usefull Toolbox, sometimes easyer then GTK+ himself ;) > > go to http://www.wxwindows.org and then you can download > the wxGTK+. > > And some of the default Dialogs are replaced throug the Style from > the Windows Platform. > wxGTK doesn't help at all, it still has GTK inside, so you still can't throw exceptions when GTK signals are on the stack. wxGTK just makes it harder to know when GTK signal emissions are on the stack, since it conceals those as an implementation detail. Havoc --__--__-- Message: 5 Date: Thu, 11 Jan 2001 12:21:23 +0000 From: Neil Bird <[EMAIL PROTECTED]> Reply-To: GTK Mailing List <[EMAIL PROTECTED]> Organization: Thales Sensors To: GTK Mailing List <[EMAIL PROTECTED]> Subject: Re: GTK tooltips theming fixed? Owen Taylor wrote: > Tooltip theming isn't broken.... > > All you have to know is that tooltips aren't a special widget, they > just create a GtkWindow with a name "gtk-tooltips" OK, fair enough. But - what is it, then (apart from the dearth of theming documentation), that *all* of the GTK themes I've seen are doing wrong? They all (pretty well) have something akin to the following: engine "pixmap" { ... image { function = FLAT_BOX recolorable = TRUE detail = "tooltip" file = "tooltip.png" border = { 3, 3, 3, 3 } stretch = TRUE } ... } ... with a tooltip.png that makes sense. I've tried changing the 'detail' field to "gtk-tooltips" but that doesn't do it. I have to add (assuming the theme uses a "default" style): widget "gtk-tooltips" style "default" ... to the gtkrc of each theme. That then makes it work. And even then, I'm not sure why (I cribbed it from a 1-2 year old GTK mailing-list archive). -- =====================- http://www.thalesgroup.com/ -===================== Neil Bird | If this .signature | work mailto:[EMAIL PROTECTED] | looks pants, then | $> cd /pub personal mailto:[EMAIL PROTECTED] | stop using Outlook! | $> more beer --__--__-- Message: 6 Date: Thu, 11 Jan 2001 08:21:02 -0500 From: John Schmerge <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Theme/Style support in an unknown environment... Hi all, I'm developing an application that will be installed in an environment that does not allow the gtk/theme config files to be installed in the standard locations (nor would it be useful to do so). What I am trying to figure out is how to set up my application's look & feel w/o relying on any external config files (i.e. compile the rcfile information into the binary). Specifically, what I need to accomplish is the setting of colors on certain widgets. As of now, what I am doing is the following: int main(int, char **) { ... gtk_rc_parse_string( "style \"MW\"\n" "{\n" " bg[NORMAL] = {1.0, 1.0, 1.0}\n" "}\n" "style \"MB\"\n" "{\n" " bg[NORMAL] = {0.5765, 0.5765, 1.0}\n" " bg[PRELIGHT] = {0.65, 0.65, 1.0}\n" " bg[ACTIVE] = {0.4000, 0.4000, 0.9}\n" "}\n" "style \"clear\"\n" "{\n" " bg_pixmap[NORMAL] = \"<parent>\"\n" "}\n" "widget \"main window\" style \"MW\"\n" "widget \"main window*GtkButton*\" style \"MB\"\n" "widget_class \"*EventBox*\" style \"clear\""); ... } Is there a more elegant way of doing this? Also, I'd like to change the background color of the tooltips that I have to something other than the default drab grey. Any information would be appreciated, since the api reference is severely lacking in information on styles & themes. -JS --------------------------- John Schmerge [EMAIL PROTECTED] --__--__-- Message: 7 Date: Thu, 11 Jan 2001 13:44:49 +0000 (GMT) From: Colin Thomas <[EMAIL PROTECTED]> Reply-To: Colin Thomas <[EMAIL PROTECTED]> Subject: Re: Pixmap question To: [EMAIL PROTECTED] Hi , I have gone some hunting around, and have found a reference to the following in gdktypes.h: ############################################ /* GC function types. * Copy: Overwrites destination pixels with the source pixels. * Invert: Inverts the destination pixels. * Xor: Xor's the destination pixels with the source pixels. * Clear: set pixels to 0 * And: source AND destination * And Reverse: source AND (NOT destination) * And Invert: (NOT source) AND destination * Noop: destination * Or: source OR destination * Nor: (NOT source) AND (NOT destination) * Equiv: (NOT source) XOR destination * Xor Reverse: source OR (NOT destination) * Copy Inverted: NOT source * Xor Inverted: (NOT source) OR destination * Nand: (NOT source) OR (NOT destination) * Set: set pixels to 1 */ typedef enum { GDK_COPY, GDK_INVERT, GDK_XOR, GDK_CLEAR, GDK_AND, GDK_AND_REVERSE, GDK_AND_INVERT, GDK_NOOP, GDK_OR, GDK_EQUIV, GDK_OR_REVERSE, GDK_COPY_INVERT, GDK_OR_INVERT, GDK_NAND, GDK_SET } GdkFunction; ############################################ If I read it correctly, it seems you can overlay pixels on existing pixels ANDing the colour ? (Which is what I am after...) Is this the correct way it was intended? If so has anyone used the above, and how in gtk+ ? I also would like to have dashed lines in rectangles et al. There seems to be the following, but again can it be used in gdk: I assume somehow it is called in the GC which the rectangle is drawn in ?? (Either of my 2 gtk+ books go into this depth) ############################################ typedef enum { GDK_LINE_SOLID, GDK_LINE_ON_OFF_DASH, GDK_LINE_DOUBLE_DASH } GdkLineStyle; ############################################ Many thanks in advance... Colin Thomas ------------- Begin Forwarded Message ------------- Date: Tue, 09 Jan 2001 11:49:54 -0800 From: "Timothy M. Shead" <[EMAIL PROTECTED]> User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; m18) Gecko/20001115 X-Accept-Language: en MIME-Version: 1.0 To: Paul Barton-Davis <[EMAIL PROTECTED]> Cc: Colin Thomas <[EMAIL PROTECTED]>, [EMAIL PROTECTED] Subject: Re: Pixmap question Content-Transfer-Encoding: 7bit Paul Barton-Davis wrote: >> I need to develop Display window which can a number of coloured layers. >> ( the various layers used in IC design). >> >> Where each layer overlaps another, I want to see the correct ANDING of >> the colours. >> >> I need to be able to repaint with an odd layer removed from display. >> >> I can see that if I have multiple pixmaps (one for each layer to be >> displayed), but just sending the desired pixmaps to the screen I should >> be able to achieve this. > > > 1) I believe that no part of X (or GDK) current supports such > things. This generally goes by the name "alpha channel", and X > doesn't support it. A pixel in a Drawable is either completely > transparent or completely opaque (with its own particular color). > The X Render extension should support these types of operations (with hardware support, when available). However, you're talking about bleeding edge (it only just appeared in XFree86 4.0.2) X calls - no support from GTK+, etc. Check out the release notes and link at http://www.xfree86.org Regards, Tim ------------- End Forwarded Message ------------- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | Colin Thomas. | Design Consultant. | | Email : [EMAIL PROTECTED] | Tele : (44) 1234 240562 | Fax : (44) 1234 241262 | | Address : Design Resources, | 27 Market Place, | Olney, | Buckinghamshire, | United Kingdom. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ --__--__-- Message: 8 Date: Thu, 11 Jan 2001 08:07:18 -0600 From: Billy Patton <[EMAIL PROTECTED]> Organization: Texas Instruments, Inc. To: gtk <[EMAIL PROTECTED]> Subject: Confused about canvas size and gtk without X I'm trying to display some rectangles on a canvas (done) and track the cursor by displaying it on the status bar. WHen my screen gets configured I set the canvas width and height gint configure_event( GtkWidget *widget ,GdkEventConfigure *event ) { if (pixmap) gdk_pixmap_unref(pixmap); canvas_x = widget->allocation.width; canvas_y = widget->allocation.height; The is what I thought I needed to give me a size of the canvas so that I may scale my data correctly. What happens is that my data is alwasy larger than the canvas (currently testing only 2 rectangles) and my mouse tracking changes with the size of my canvas. At default tracking appears to be normal, when maximized tracking is WAY off. What could be the problem ??? Also I've been unable to find much explanation of just what gtk without x is. It appears to work well on my winder98 box and I suppose that it is meant to access the linux graphics (directX ???). Will something/doesitexist for a SUN sloaris box or will we SUN users be SOL and have to continue hitting out X server to draw thousands of rectangles ? -- =========+=========+=========+=========+=========+=========+=========+ ___ _ ____ ___ __ __ / _ )(_) / /_ __ / _ \___ _/ /_/ /____ ___ / _ / / / / // / / ___/ _ `/ __/ __/ _ \/ _ \ /____/_/_/_/\_, / /_/ \_,_/\__/\__/\___/_//_/ /___/ Texas Instruments ASIC Circuit Design Methology Group Dallas, Texas 214-480-4455 [EMAIL PROTECTED] =========+=========+=========+=========+=========+=========+=========+ --__--__-- Message: 9 Date: Thu, 11 Jan 2001 15:43:03 +0000 From: John Cupitt <[EMAIL PROTECTED]> Organization: The National Gallery To: Colin Thomas <[EMAIL PROTECTED]> Cc: [EMAIL PROTECTED] Subject: Re: Pixmap question Colin Thomas wrote: > If I read it correctly, it seems you can overlay pixels on existing pixels > ANDing the colour ? (Which is what I am after...) Hiya, you can use this ... you'd have to: - have an off-screen pixmap on the server for each layer in your view - on redraw (eg. on layer delete), AND all your layers together to make another off-screen pixmap - repaint the window by blitting from your combined view to the screen This is going to be rather slow, and will eat up memory inside the server. For example, on a scroll, you'll have to ship a whole new set of pixmaps over to the server. I think a better technique is to do this in your application. Do the AND yourself to a big array, then paint the window with gdkrgb. Less network traffic (maybe), less memory use (certainly). > I also would like to have dashed lines in rectangles et al. There seems to > be the following, but again can it be used in gdk: I assume somehow it is > called in the GC which the rectangle is drawn in ?? (Either of my 2 gtk+ books > go into this depth) > > ############################################ > typedef enum > { > GDK_LINE_SOLID, > GDK_LINE_ON_OFF_DASH, > GDK_LINE_DOUBLE_DASH > } GdkLineStyle; > ############################################ The best place to look is a book on xlib programming - the gdk calls are almost identical. HTH, John -- John Cupitt, [EMAIL PROTECTED], +44 (0)20 7747 2570 VASARI Lab, The National Gallery, Trafalgar Square, London, WC2N 5DN --__--__-- Message: 10 From: "Dugas, Alan" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED], [EMAIL PROTECTED] Subject: GdkCursor reset Date: Thu, 11 Jan 2001 11:01:28 -0500 Does anyone know how to reset a widget's cursor to the "default cursor" after changing it to say to a GDK_WATCH? -- Stupid Genius --__--__-- Message: 11 From: Mark Leisher <[EMAIL PROTECTED]> Date: Thu, 11 Jan 2001 09:03:42 -0700 (MST) To: "Dugas, Alan" <[EMAIL PROTECTED]> Cc: [EMAIL PROTECTED], [EMAIL PROTECTED] Subject: Re: GdkCursor reset Alan> Does anyone know how to reset a widget's cursor to the "default Alan> cursor" after changing it to say to a GDK_WATCH? Yes. gdk_window_set_cursor(window, 0); ----------------------------------------------------------------------------- Mark Leisher Computing Research Lab Cinema, radio, television, magazines are a New Mexico State University school of inattention: people look without Box 30001, Dept. 3CRL seeing, listen without hearing. Las Cruces, NM 88003 -- Robert Bresson --__--__-- _______________________________________________ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list End of gtk-list Digest_______________________________________________ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list �Ib�ٚ�X��X�� d�+-�z&z����i����X'�g���j)fj��b��?��%��
