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<div dir="ltr" data-setdir="false">Well, I'll ask the question in a cairo only way then...</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Can I overlay text onto a cairo surface and then erase the text without destroying the image below?</div><div dir="ltr" data-setdir="false">Could I, for example, copy/cache the rectangle under the text before writing (using extents to determine the dimensions) so that I could later use that to effectively restore the underlying image before writing new text.</div><div dir="ltr" data-setdir="false">Is there a better / simpler way to do this?</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">thanks</div><div><br></div>
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On Wednesday, March 30, 2022, 08:18:10 AM EDT, Emmanuele Bassi <ebassi@gmail.com> wrote:
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<div><div id="yiv6765306305"><div><div dir="ltr"><div>Hi;</div><div><br clear="none"></div><div>if you have questions about GTK, you should use the GNOME Discourse:</div><div><br clear="none"></div><div><a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="https://discourse.gnome.org/tag/gtk">https://discourse.gnome.org/tag/gtk</a></div><div><br clear="none"></div><div>Ciao,</div><div> Emmanuele.<br clear="none"></div></div><br clear="none"><div id="yiv6765306305yqt20211" class="yiv6765306305yqt3775583146"><div class="yiv6765306305gmail_quote"><div dir="ltr" class="yiv6765306305gmail_attr">On Tue, 29 Mar 2022 at 16:45, Michael K <<a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:vk2bea@yahoo.com" target="_blank" href="mailto:vk2bea@yahoo.com">vk2bea@yahoo.com</a>> wrote:<br clear="none"></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;" class="yiv6765306305gmail_quote"><div><div style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:10px;"><div dir="ltr">I'm attempting to have two GtkDrawingArea widgets in a GtkOverlay container.</div><div dir="ltr"><br clear="none"></div><div dir="ltr">The lower widget is a graph and the top widget shows dynamically changing information related to the graph based on the mouse position.</div><div dir="ltr"><br clear="none"></div><div dir="ltr">I cannot seem to erase the top drawing area without wiping out the graph on the bottom drawing area.</div><div dir="ltr"><br clear="none"></div><div dir="ltr">Is this at all possible or am I just doing something wrong ?</div></div></div></blockquote></div></div><br clear="all"><br clear="none">-- <br clear="none"><div dir="ltr" class="yiv6765306305gmail_signature"><a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="https://www.bassi.io">https://www.bassi.io</a><br clear="none">[@] ebassi [@<a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="http://gmail.com">gmail.com</a>]</div>
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