Re: PDF page not rendering properly if the page is changed
On Wed, 2018-11-28 at 17:17 +0100, Радомир Хаџић via gtk-app-devel-list wrote: > Hello. > > I've sent as an attachment a code for a very simple PDF viewer. It is > not that well written but that's because I wanted it to be simple and > easy to understand. The purpose of the program is to illustrate a > problem that I'm having with my larger project. > > The problem is that if a user changes page (by clicking "Previous > Page" or "Next Page") and the page when scaled accordingly is bigger > than the visible portion of the page rendering area (GtkDrawingArea), > then only the part of the page will render. You can try this > yourself: > 1. Open a document 2. Make sure that the next page is not completely > visible on the screen (so the scrollbars appear, this can be usually > achieved by clicking "Fit Width") 3. Click "Next page" and try > scrolling. You'll notice that one part of the page is not rendered. > > So, why is this happening and how can I solve it? What also confuses > me is that rendering() function is definitely called when I scroll > but > the page does not render (though it does render as it should when I > scroll the first page of a just opened document) properly, but if I > then resize the window the page renders properly. I do not see any attachment. My guess is: the page maybe cached somewhere, and it is reloaded (re- rendered) when the view size changes. -- Germán Poo-Caamaño http://calcifer.org/ ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: How to make text in rendered PDF pages selectable?
On Mon, 2018-11-19 at 16:39 +0100, Радомир Хаџић via gtk-app-devel-list wrote: > Hello. > > I'm using Poppler to render PDF page onto GtkDrawingArea surface. > Everything renders correctly so far, but I can't figure out how to > make text selectable. For example, a user may wish to select some > text > using mouse with the intention of copying it, or when user searches a > document for a string it would be practical to make that text stand > out by selecting it. > > All I'm asking for is some guidance and/or brief explanation how am I > supposed to achieve that, since I cannot find anything online or in > the documentation. You might want to check poppler-glib-demo, and its source code. In particular, selections.c which is done with GtkDrawingArea. https://gitlab.freedesktop.org/poppler/poppler/tree/master/glib/demo -- Germán Poo-Caamaño, http://calcifer.org/ ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: That reminds me -- is there a signal that can be used when mouse over mainwin titlebar?
On Wed, 2018-09-26 at 18:52 -0500, David C. Rankin wrote: > All, > > Thanks to the other "is there a signal?" question, that reminded me I > have been looking for a signal (or way) to detect when the user has > the mouse over the titlebar of the main window in an editor where I > would like to activate a tooltip showing the absolute path for the > file in the currently focused textview. I just cannot find a signal > or event window scheme to do it > -- > probably because the main window titlebar is owned by the window > manager and not the application. But still, I see other editors that > are capable of this. > > Is there any such signal, or something that can be used in > conjunction with > the set_window_title call that would also provide a tooltip on > mouseover I could respond to? In the specific case of Client Side Decorations (CSD), like in Gnome, applications can use GtkHeaderBar, where you can set a tooltip. In Evince we do that for a similar use case you mention. A GtkHeaderBar can have a title and subtitle. In the subtitle we present the filename (basename), but you can get the full path through the tooltip. -- Germán Poo-Caamaño http://calcifer.org/ ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
