On Fri, 24 Jul 2009 15:34:35 -0400 Michael Hughes <mary...@compuserve.com> said:
> Notes on using TextBlock: > > After appending strings to the block, > > evas_textblock_cursor_node_first(Cursor); > > moves the cursor back to the beginning of the text. This is generally > equivalent to: > > evas_textblock_cursor_line_set(Cursor,0); > evas_textblock_cursor_pos_set(Cursor,0); > > Functions such as "pos_set" and "char_first" operate within the current > line. They do not cross line boundaries. Both lines and character > positions are counted from zero. > > If you want to have a visible cursor, the function: > > evas_textblock_cursor_char_geometry_get(Cursor, &PosX, &PosY, &Width > &Height); > > gives you the pixel coordinates and size of the character box at the > cursor position which can be used to resize and move a graphic image to > superimpose it on the character. These coordinates are referenced to > the edge of the textblock object so you may have add margins when you > use "evas_object_move()" which is referenced to the canvas. Resizing to > "Height" will accommodate different fonts but some proportional > characters are very narrow so the width of the graphic cursor image > should be set as a proportion of the height rather that using the width > value returned by the geometry function. This function will fail and > return -1 if the cursor is positioned at the end of a line or on a blank > line. > > It is easy to set up a timer callback function to toggle between > "object_show" and "object_hide" to make the cursor blink. Don't forget > that the callback function has to return 1 to make the timer cycle. > > The cursor image must have a transparent background so you have to use a > format such as PNG which supports that. JPEG does not. I could not > find a good cursor image and had to make one up. I have attached it so > maybe it will save someone some time. or - just put cursor BEHIND he textblock object. it'll be underneath then :) > Now I have to figure out how to position the text cursor in response to > a mouse click. At the moment, the only thing I have come up with is to > use the "geometry" functions to scan down for the line and then across > for the character. There must be a better way and if anyone knows one, > I would like to hear about it! look at edje. it has an entry build with textblock. all the things u could want are there. cursors, selections... the works. hint: evas_textblock_cursor_char_coord_set() :) (create a cursor, set its position to the x,y of the mouse click. after hat u can query it for geometry, position (relative to other cursors) etc. :)) -- ------------- Codito, ergo sum - "I code, therefore I am" -------------- The Rasterman (Carsten Haitzler) ras...@rasterman.com ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ enlightenment-devel mailing list enlightenment-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
