2011/10/24 Denis Linvinus <linvi...@gmail.com> > > > 2011/10/24 Tristan Van Berkom <t...@gnome.org> > >> On Sun, Oct 23, 2011 at 4:38 PM, Denis Linvinus <linvi...@gmail.com> >> wrote: >> > >> > >> > 2011/10/19 Tristan Van Berkom <t...@gnome.org> >> >> >> >> Note I spent a lot of time writing something like this last year. >> >> >> >> I would like to eventually port it into GTK+ as the internal >> >> implementation >> >> of the GtkToolPalette. >> >> >> >> See: >> >> http://git.gnome.org/browse/libegg/tree/libegg/wrapbox >> > >> > Thanks for answer! >> > But in your example same problem! >> > If you pack wrapbox directly in to frame (without scrolled_window) >> > then, you can not change the height of the window to smaller than it was >> at >> > the start. >> >> Ah, I get what you are saying. >> >> This is a limitation that cannot be avoided because GTK+ already >> mandates that every widget in an interface receives a size allocation >> of at least it's minimum size request. >> > > yes, it is the main problem, but take a look on my videos > > This is my HVBox on gtk3.0 > http://www.youtube.com/watch?v=sMB0qhuPMXc > > And this is same program but on Gtk3.2 > http://www.youtube.com/watch?v=artJWLhlpms >
added yet another video http://www.youtube.com/watch?v=t7DioFe7FBk > > Main different in logs, is that, while resizing on Gtk3.0, it always > recalculate size > get_preferred_width minimum=86 natural=2150 > get_preferred_height minimum=28 natural=28 > get_preferred_height_for_width=86 != 597 minimum=140 natural=140 > get_preferred_height_for_width=597 != 597 minimum=140 natural=140 > get_preferred_height_for_width=597 != 597 minimum=140 natural=140 > orig size_allocate x=5 y=59 w=597 h=140 > orig2 size_allocate x=5 y=59 w=597 h=140 > get_preferred_height minimum=28 natural=28 > get_preferred_height_for_width=86 != 597 minimum=140 natural=140 > get_preferred_height minimum=28 natural=28 > get_preferred_height_for_width=86 != 597 minimum=140 natural=140 > get_preferred_height_for_width=597 != 597 minimum=140 natural=140 > get_preferred_height_for_width=597 != 597 minimum=140 natural=140 > get_preferred_height minimum=28 natural=28 > get_preferred_height_for_width=86 != 597 minimum=140 natural=140 > > on gtk3.2 it recalculate size only if size increases, if i reduce size > then i see only > orig size_allocate x=5 y=111 w=1247 h=28 > orig2 size_allocate x=5 y=111 w=1247 h=28 > orig size_allocate x=5 y=55 w=1247 h=28 > orig2 size_allocate x=5 y=55 w=1247 h=28 > orig size_allocate x=5 y=55 w=623 h=28 > orig2 size_allocate x=5 y=55 w=623 h=84 > orig size_allocate x=5 y=55 w=623 h=28 > orig2 size_allocate x=5 y=55 w=623 h=84 > orig size_allocate x=5 y=55 w=456 h=28 > orig2 size_allocate x=5 y=55 w=456 h=84 > orig size_allocate x=5 y=55 w=456 h=28 > orig2 size_allocate x=5 y=55 w=456 h=84 > (called only size_allocate) > > until i move mouse inside my box (at the end of video), only after that > widget recalculate size. > > But i can't understand how to force size calculation manually (like i move > mouse inside). > gtk_widget_set_size_request() - don't helps. > >> > >> >> When you add height-for-width to this equation, then: >> >> o For a "height-for-width" interface, the screen will always >> be tall enough to hold all the content at the smallest width. >> >> o For a "width-for-height" interface the opposite is true, the >> window must always stay wide enough to fit all of the content >> at the smallest possible height. >> >> This deserves an explanation, so lets consider wrapping text instead >> of the wrapbox (in practice it is the same thing though)... >> >> If you have a window with a wrapping text label, and the label is >> allowed to wrap down to the smallest word... then the window >> will need to be tall enough to fit the text in the case that it is >> wrapped down to the smallest word, even if at display time the >> default width is larger. >> >> >> So you have 2 main ways of dealing with this: >> >> o Once, by setting a reasonable width on the toplevel >> >> Define a very small minimum width for the screen widgets >> which are height-for-width (possibly that is default for >> some widgets, like yours I think). Then, before showing >> your interface set a hard limit on the toplevel GtkWindow's >> minimum width. (using gtk_widget_set_size_request()). >> >> This will cause your overall window to be "shorter" >> in height proportionally to the hard limit of width which >> you set on the interface (If you assign a larger minimum width >> to a window, it will receive a smaller dynamically resolved >> minimum height). >> >> o Per component, by setting reasonable minimum widths >> for any height-for-width content providing widgets in your interface. >> >> For instance in the above label example, if you set the >> label's "width-chars" property then the label will always >> request at least "width-chars" for the width of it's label. >> >> >> > Thanks for explanation, i think the same way. > > >> Cheers, >> -Tristan >> >> > >> > look at screenshots >> > this is window after start >> > http://imageshack.us/photo/my-images/847/testwrapbox1.png/ >> > and this is >> > http://imageshack.us/photo/my-images/696/testwrapbox.png/ >> > after changing the width of the window, it should allow to reduce its >> > height, because there are many free space, but it does not. >> > >> > With GTK3.0 i use little trick for that, >> > i store maximum allowed width in private variable, and in function >> > get_preferred_height_for_width >> > i always calculate height not for minimum width but for stored width. >> > >> > There is how it looks like >> > public override void get_preferred_height_for_width (int width,out >> int >> > minimum_height, out int natural_height) { >> > >> > /*workaround for min_height, if actual available width more than >> > self minimum width*/ >> > if( this.minimum_width!=width || >> > !(this.minimum_width==width && this.natural_width >= width) ){ >> > this.natural_width=width; >> > } >> > >> > this._get_preferred_height_for_width(this.natural_width,out >> > minimum_height, out natural_height); >> > this.natural_height = natural_height; >> > } >> > >> > where this.natural_width is stored maximum width. >> > Because get_preferred_height_for_width called several times , first time >> for >> > minimum width, others for allocated width, >> > and because while i resizing window, gtk always recalculate size , in >> gtk3.0 >> > my window always have actual size. >> > >> > >> > As i'm understand, problem appears because of the following changes in >> > gtkcontainer.c in GTK3.2 >> > >> > +typedef struct { >> > + gint hfw; >> > + gint wfh; >> > +} RequestModeCount; >> > + >> > +static void >> > +count_request_modes (GtkWidget *widget, >> > + RequestModeCount *count) >> > +{ >> > + GtkSizeRequestMode mode = gtk_widget_get_request_mode (widget); >> > + >> > + switch (mode) >> > + { >> > + case GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH: >> > + count->hfw++; >> > + break; >> > + case GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT: >> > + count->wfh++; >> > + break; >> > + case GTK_SIZE_REQUEST_CONSTANT_SIZE: >> > + default: >> > + break; >> > + } >> > +} >> > + >> > +static GtkSizeRequestMode >> > +gtk_container_get_request_mode (GtkWidget *widget) >> > +{ >> > + GtkContainer *container = GTK_CONTAINER (widget); >> > + GtkContainerPrivate *priv = container->priv; >> > + >> > + /* Recalculate the request mode of the children by majority >> > + * vote whenever the internal content changes */ >> > + if (_gtk_widget_get_width_request_needed (widget) || >> > + _gtk_widget_get_height_request_needed (widget)) >> > + { >> > + RequestModeCount count = { 0, 0 }; >> > + >> > + gtk_container_forall (container, >> (GtkCallback)count_request_modes, >> > &count); >> > + >> > + if (!count.hfw && !count.wfh) >> > + priv->request_mode = GTK_SIZE_REQUEST_CONSTANT_SIZE; >> > + else >> > + priv->request_mode = count.wfh > count.hfw ? >> > + GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT : >> > + GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH; >> > + } >> > + >> > + return priv->request_mode; >> > +} >> > + >> > >> > so, container will recalculate it size only if >> > if (_gtk_widget_get_width_request_needed (widget) || >> > _gtk_widget_get_height_request_needed (widget)) >> > >> > because of that, my trick don't working with GTK 3.2, >> > so, my question is, how to force the container/window to recalculate >> its >> > size in gtk 3.2 ? >> > >> > i try to use set_size_request and queue_resize (for container and for >> > window), >> > but this functions don't help. >> > >> > I hope I have clearly described their thoughts. >> > >> > >> >> >> >> Cheers, >> >> -Tristan >> >> >> >> On Wed, Oct 19, 2011 at 3:09 PM, Denis Linvinus <linvi...@gmail.com> >> >> wrote: >> >> > Hi all, >> >> > i'm writing new GtkContainer which allocate children, firstly >> >> > horizontally, >> >> > then vertically. - HVBox. >> >> > >> >> > On gtk 3.0 it works without problems (with little trick), but with >> gtk >> >> > 3.2. >> >> > window don't change height when container change, until i move mouse >> >> > above >> >> > my container. >> >> > >> >> > My idea is that my container should use minimum space as possible, >> but >> >> > enough to show all children. >> >> > If available width not enough for children then container should >> >> > increase >> >> > height for second line, and so on. >> >> > Something like multiline tabs in firefox. (children is a buttons) >> >> > >> >> > There is my sources http://pastebin.com/8qugyfqk (i use valac --pkg >> >> > gtk+-3.0 >> >> > -C ./main.vala to compile) >> >> > >> >> > image with explanation of the problem >> >> > http://imageshack.us/photo/my-images/508/resulte.png/ >> >> > there is two control buttons (add, remove) in one VBox, all other >> >> > buttons >> >> > in my HVBox container. >> >> > As you can see at last screenshot, i lost two buttons after resize >> >> > window on >> >> > Gtk3.2, if i move mouse on buttons again then window will change it >> >> > height , >> >> > so that the lost buttons will be visible. >> >> > >> >> > I'm check, problem is not in vala, i use generated *.c from ubuntu >> 11.10 >> >> > to >> >> > compile on Ubuntu 11.04 without modifications, and it also works >> >> > correctly. >> >> > >> >> > May be someone know how to force window to recalculate size? >> >> > Or some other method to resolve my problem? >> >> > >> >> > My system ubuntu 11.10 >> >> > libgtk-3-0 3.2.0-0ubuntu3 >> >> > >> >> > Ubuntu 11.04 for Gtk 3.0 >> >> > libgtk-3-0 3.0.8-0ubuntu1 >> >> > >> >> > I will appreciate for any help. >> >> > p.s. sorry for my English. >> >> > >> >> > >> >> > _______________________________________________ >> >> > gtk-list mailing list >> >> > gtk-list@gnome.org >> >> > http://mail.gnome.org/mailman/listinfo/gtk-list >> >> > >> >> > >> > >> > >> > >
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