On Thu, 2004-02-19 at 02:04, Juan Carlos Orozco wrote: > Hello, > > I implemented a HMI (Human Machine Interface) for the MatPLC project > http://mat.sf.net (an OSS project) that uses Glade as its graphical > builder. It is actually the official HMI editor for this project. There > is a type of HMI where one draws a representation of the machine and > then places widgets to view or control parts of the machine. There is a > library of standard parts of a machine like pipes, valves, etc. Using > the "Fixed Positions" type of layout one should be able to draw the > machine from the library images, the problem is that there is no way of > scaling the images. How difficult would it be to add a scaled toggle to > the Properties dialog of the GtkImage and to have the image scaled to > the whole widget size. When the widget gets rescaled the image will > reflect this. > > Maybe this screenshots of an application built using glade and executed > using hmi_gtk and MatPLC can help visualize what is this all about. > http://www.ace-lab.com/jorozco/ > > We are upgrading the HMI_GTK module to glade2. In the glade1 version we > used GnomePixmap to do this. It did not scale to the widget size but > instead used two parameters "scaled width" and "scaled height". This is > not very practical but it worked, also this is deprecated widget and > when we use libglade-convert this widget gets converted to a GtkImage. > So we would prefer to use GtkImage if only we could scale the images and > see a feedback of it.
GtkImage doesn't support scaling the image, so we can't really support it in Glade. I think you'll have to use a custom widget to do this. (You could use some of the old GnomePixmap code.) > BTW, I am also interested in custom widgets with visual feedback, this > is that one can see the custom widget in the design window in its real > form. I am thinking something similar to the way a graphical java bean > is represented in a IDE tool. Is something like this planned in the new > Glade3 development? Bonobo components perhaps? I know there is a custom > widget in Glade2 but it gets drawed as a plain square. I am pushing my > luck here, but it would be great if this custom widgets could be placed > in a palette. It is planned in Glade3. Bonobo components are partially supported in Glade2, though I'm not sure how well they work. Damon _______________________________________________ Glade-devel maillist - [EMAIL PROTECTED] http://lists.ximian.com/mailman/listinfo/glade-devel
