DUI version 00.07
Scales example of DUI code
scales using default GTK look | 
scales using a different GTK look |
/* * This file is part of dui. * * dui is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * dui is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with dui; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ module test.TestScales; import dui.All; /** * This tests the DUI scales and scrollbar widgets */ class TestScales : Table, MenuItemListener, ButtonClickedListener { VScale vscale; HScale hscale; Dispatcher dispatcher; this() { debug(1) { printf("instantiating TestScales\n"); } super(1,1,0); // make sure the dispatcher is initialized dispatcher = Dispatcher.getDispatcher(); createRangeControls(); } void createRangeControls() { Box box1,box2,box3; Button button; Scrollbar scrollbar; Separator separator; OptionMenu opt; Menu menu; MenuItem item; Label label; Scale scale; Adjustment adj1, adj2; box1 = new VBox(false,0); add(box1); box2 = new HBox(false,0); box2.setBorderWidth(10); box1.packStart(box2, true,true,0); /* value, lower, upper, step_increment, page_increment, page_size */ /* Note that the page_size value only makes a difference for * scrollbar widgets, and the highest value you'll get is actually * (upper - page_size). */ adj1 = new Adjustment(0.0, 0.0, 101.0, 0.1, 1.0, 1.0); vscale = new VScale(adj1); //scale_set_default_values (GTK_SCALE (vscale)); box2.packStart(vscale, true, true, 0); box3 = new VBox(false,10); box2.packStart(box3,true,true,0); /* Reuse the same adjustment */ hscale = new HScale(adj1); hscale.setSizeRequest(200,-1); //scale_set_default_values (GTK_SCALE (hscale)); box3.packStart(hscale,true,true,0); /* Reuse the same adjustment again */ scrollbar = new HScrollbar(adj1); /* Notice how this causes the scales to always be updated * continuously when the scrollbar is moved */ scrollbar.setUpdatePolicy((int)Range.CONTINUOUS); box3.packStart(scrollbar,true,true,0); box2 = new HBox(false,10); box2.setBorderWidth(10); box1.packStart(box2,true,true,0); /* A checkbutton to control whether the value is displayed or not */ CheckButton cButton = new CheckButton("Display value on scale widgets"); cButton.setActive(true); dispatcher.addButtonClickedListener(this,cButton,"DisplayValues"); box2.packStart(cButton,true,true,0); box2 = new HBox(false,10); box2.setBorderWidth(10); /* An option menu to change the position of the value */ label = new Label("Scale Value Position:"); box2.packStart(label,false,false,0); opt = new OptionMenu(); menu = new Menu(); menu.append(new MenuItem(this,"Top","ValueTop")); menu.append(new MenuItem(this,"Bottom","ValueBottom")); menu.append(new MenuItem(this,"Left","ValueLeft")); menu.append(new MenuItem(this,"Right","ValueRight")); opt.setMenu(menu); box2.packStart(opt,false,false,0); box1.packStart(box2,false,false,0); box2 = new HBox(false,10); box2.setBorderWidth(10); /* Yet another option menu, this time for the update policy of the scale widgets */ label = new Label("Scale Update Policy:"); box2.packStart(label,false,false,0); opt = new OptionMenu(); menu = new Menu(); menu.append(new MenuItem(this,"Continuous","ScaleContinuous")); menu.append(new MenuItem(this,"Discontinuous","ScaleDiscontinuous")); menu.append(new MenuItem(this,"Delayed","ScaleDelayed")); opt.setMenu(menu); box2.packStart(opt,false,false,0); box1.packStart(box2,false,false,0); /** * Here is a bit a pure C GTK+ code. * This code would compile and execute in D, * we just need to define the functions as extern. */ /+ box2 = gtk_hbox_new (FALSE, 10); gtk_container_set_border_width (GTK_CONTAINER (box2), 10); /* An HScale widget for adjusting the number of digits on the * sample scales. */ label = gtk_label_new ("Scale Digits:"); gtk_box_pack_start (GTK_BOX (box2), label, FALSE, FALSE, 0); gtk_widget_show (label); adj2 = gtk_adjustment_new (1.0, 0.0, 5.0, 1.0, 1.0, 0.0); g_signal_connect (G_OBJECT (adj2), "value_changed", G_CALLBACK (cb_digits_scale), NULL); scale = gtk_hscale_new (GTK_ADJUSTMENT (adj2)); gtk_scale_set_digits (GTK_SCALE (scale), 0); gtk_box_pack_start (GTK_BOX (box2), scale, TRUE, TRUE, 0); gtk_widget_show (scale); gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0); gtk_widget_show (box2); box2 = gtk_hbox_new (FALSE, 10); gtk_container_set_border_width (GTK_CONTAINER (box2), 10); /* And, one last HScale widget for adjusting the page size of the * scrollbar. */ label = gtk_label_new ("Scrollbar Page Size:"); gtk_box_pack_start (GTK_BOX (box2), label, FALSE, FALSE, 0); gtk_widget_show (label); adj2 = gtk_adjustment_new (1.0, 1.0, 101.0, 1.0, 1.0, 0.0); g_signal_connect (G_OBJECT (adj2), "value_changed", G_CALLBACK (cb_page_size), (gpointer) adj1); scale = gtk_hscale_new (GTK_ADJUSTMENT (adj2)); gtk_scale_set_digits (GTK_SCALE (scale), 0); gtk_box_pack_start (GTK_BOX (box2), scale, TRUE, TRUE, 0); gtk_widget_show (scale); gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0); gtk_widget_show (box2); separator = gtk_hseparator_new (); gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0); gtk_widget_show (separator); box2 = gtk_vbox_new (FALSE, 10); gtk_container_set_border_width (GTK_CONTAINER (box2), 10); gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0); gtk_widget_show (box2); button = gtk_button_new_with_label ("Quit"); g_signal_connect_swapped (G_OBJECT (button), "clicked", G_CALLBACK (gtk_main_quit), NULL); gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0); GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT); gtk_widget_grab_default (button); gtk_widget_show (button); gtk_widget_show (window); +/ } void activateItemCallback(MenuItem menuItem, char [] action) { } void activateCallback(MenuItem menuItem, char [] action) { switch ( action ) { case "ValueTop": vscale.setValuePos(Scale.TOP); hscale.setValuePos(Scale.TOP); break; case "ValueBottom": vscale.setValuePos(Scale.BOTTOM); hscale.setValuePos(Scale.BOTTOM); break; case "ValueLeft": vscale.setValuePos(Scale.LEFT); hscale.setValuePos(Scale.LEFT); break; case "ValueRight": vscale.setValuePos(Scale.RIGHT); hscale.setValuePos(Scale.RIGHT); break; case "ScaleContinuous": vscale.setUpdatePolicy(Scale.CONTINUOUS); hscale.setUpdatePolicy(Scale.CONTINUOUS); break; case "ScaleDiscontinuous": vscale.setUpdatePolicy(Scale.DISCONTINUOUS); hscale.setUpdatePolicy(Scale.DISCONTINUOUS); break; case "ScaleDelayed": vscale.setUpdatePolicy(Scale.DELAYED); hscale.setUpdatePolicy(Scale.DELAYED); break; default: printf("menuItem.action %.*s received\n",action); break; } } void buttonClickedCallback(Button button, char [] action) { switch ( action ) { case "DisplayValues": CheckButton cb = (CheckButton)button; vscale.setDrawValue(cb.getActive()); hscale.setDrawValue(cb.getActive()); break; default: printf("buttonClicked.action %.*s received\n",action); break; } } }
