Re: Movable line via mouse

should mention too that my graph data is collected once a second and stored in array so the moveable bars relate to the time element for zooming purposes and the data is stored ie $array[time][x] and $array[time][y] Also should have mentioned I use gdk::draw_line() to create the graph/plot Brian Stumm wrote: > I'm doing something similar in an app where I monitor time/temp profiling > (graphing) in real time and ability to recall graphs. Users can select to > "zoom" to a portion of the graph and it can display up to 6 channels of > temperature data. I probably didn't get all code related in here but > should get you going... email me if you need more info. > > I'm using a drawing area: > > $drawingarea = &new GtkDrawingArea(); > //$drawingarea->size(560, 330); > $drawingarea->size(1800, 330); > $drawingarea->set_events(GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK); > > $newstyle = &new GtkStyle(); > $newstyle->bg[GTK_STATE_NORMAL] = gdk::color_parse('gray'); > $drawingarea->set_style($newstyle); > $pbox->put($drawingarea, 20, 0); > $drawingarea->realize(); > $style = $drawingarea->style; > $mydrawable = $drawingarea->window; > > I use buttons for movable/draggable bars > > $moveable_bar1 = &new GtkButton(''); > $moveable_bar1->set_usize(4,300); > $pbox->put($moveable_bar1, 249, 30); > > $drawingarea->connect('drag-data-received', 'dragDataReceived'); > > and I have functions to deal with changing things when bars are moved: > > /***** DRAGDATAGET() *****/ > function dragDataGet($bar, $context, $selection_data, $info, $time, $name) > > { > global $pwindow, $pbox, $button, $vbar1, $vbar2, $moveable_bar1, > $moveable_bar2; > $location = $pwindow->get_pointer(); > if($name == 1) { > $vbar1 = $location[0] - 30; > } > if($name == 2) { > $vbar2 = $location[0] - 30; > } > ClearGraph(0); > RedrawIt(); > $pbox->move($moveable_bar1, ($vbar1 + 19), 30); > $pbox->move($moveable_bar2, ($vbar2 + 19), 30); > $pwindow->set_focus($button); > } > > function DragAids() { > global $drag_state, $moveable_bar1, $moveable_bar2; > if($drag_state == 1) { > $moveable_bar1->hide(); > $moveable_bar2->hide(); > $drag_state = 0; > } else { > $moveable_bar1->show(); > $moveable_bar2->show(); > $drag_state = 1; > } > return 1; > } > > Tabber Watts wrote: > > > I in now way need/require anyone to completely solve this issue but > > need ideas on how this might be accomplished. > > > > Situation: > > I have data on six different sites, and each collect data period has a > > +/- 30 minute skew for each site. I need to allow users to see these > > data collection periods for a given day and select when they want to > > look at data for all six sites. > > > > I can solve this problem without using graphics and just displaying > > text times and having the user enter in the times manually but I would > > like todo it with graphics. > > > > My idea: > > Generate a timeline in a window, with the sites listed on the left > > side of the window. Then there will be two vertical lines that a user > > could click on and drag to the appropriate times they want to start > > and stop looking at the data. > > > > What I know I can do: > > Generation of the window with the full timeline and placement of data > > lines for each site in a GtkLayout. > > > > What I don't know how to do: > > Clicking and dragging of the line. The closest thing I could find to > > this functionally is the colorselector.php demo using > > GtkColorSelectionDialog. > > > > Any help or pointing in the right direction would be helpfull. > > > > Mahalo, > > Tabber Watts > > -- > Brian Stumm > ETS - Energy Technology Systems, Inc > bstumm@energytechnologysystems.com > http://energytechnologysystems.com > > -- > PHP-GTK General Mailing List (http://gtk.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php -- Brian Stumm ETS - Energy Technology Systems, Inc bstumm@energytechnologysystems.com http://energytechnologysystems.com