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annotate mde/gui/widget/PopupMenu.d @ 138:3468e9bfded1

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Popup widgets: are simpler to use and can show content fields like DisplayContentWidget.
author Diggory Hardy <diggory.hardy@gmail.com>
date Sat, 07 Feb 2009 13:28:52 +0000
parents 9f035cd139c6
children 6f69a9c111eb
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1 /* LICENSE BLOCK
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2 Part of mde: a Modular D game-oriented Engine
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3 Copyright © 2007-2008 Diggory Hardy
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4
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5 This program is free software: you can redistribute it and/or modify it under the terms
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6 of the GNU General Public License as published by the Free Software Foundation, either
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7 version 2 of the License, or (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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10 without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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11 See the GNU General Public License for more details.
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12
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13 You should have received a copy of the GNU General Public License
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14 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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16 /******************************************************************************
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17 * Pop-up menus based on content structures.
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18 *****************************************************************************/
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19 module mde.gui.widget.PopupMenu;
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21 import mde.gui.widget.AParentWidget;
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23 import mde.gui.widget.layout;
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24 import mde.content.Content;
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25 import mde.gui.exception;
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26
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27 debug {
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28 import tango.util.log.Log : Log, Logger;
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29 private Logger logger;
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30 static this () {
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31 logger = Log.getLogger ("mde.gui.widget.PopupMenu");
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32 }
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33 }
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34
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35 /******************************************************************************
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36 * Widget which pops up a menu based on a content.
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37 *
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38 * Is a button displaying a content string, just like DisplayContentWidget.
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39 *
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40 * Popped up widget is a ContentListWidget created from the same creation data.
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41 *****************************************************************************/
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42 class PopupMenuWidget : APopupParentWidget
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43 {
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44 this (IWidgetManager mgr, IParentWidget parent, widgetID id, WidgetData data, IContent c) {
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45 content = cast(Content)c;
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46 WDCMinCheck (data, 3,1, content);
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47 super (mgr, parent, id);
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48
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49 //popup = mgr.makeWidget (this, data.strings[0], content);
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50 popup = new ContentListWidget (mgr, this, id, data, c);
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51 subWidgets = [popup];
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52
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53 cIndex = data.ints[2];
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54 if (cIndex == 0)
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55 content.addCallback (&updateVal);
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56 adapter = mgr.renderer.getAdapter;
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57 adapter.text = content.toString (cIndex);
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58 adapter.getDimensions (mw, mh);
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59 w = mw;
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60 h = mh;
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61 }
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62
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63 override void recursionCheck (widgetID wID, IContent c) {
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64 if (wID is id && c is content)
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65 throw new WidgetRecursionException (wID);
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66 parent.recursionCheck (wID, c);
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67 }
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68
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69 override int clickEvent (wdabs, wdabs, ubyte b, bool state) {
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70 if (b == 1 && state == true) {
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71 if (!pushed) {
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72 parentIPPW.addChildIPPW (this);
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73 parentIPPW.menuActive = true;
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74 mgr.positionPopup (this, popup);
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75 pushed = true;
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76 } else if (!parentIPPW.parentMenuActive) { // if not a submenu
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77 parentIPPW.removeChildIPPW (this);
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78 }
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79 }
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80 return 0;
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81 }
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82
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83 override void removedIPPW () {
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84 super.removedIPPW;
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85 pushed = false;
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86 }
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88 override void underMouse (bool state) {
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89 if (state && !pushed && parentIPPW.menuActive) {
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90 parentIPPW.addChildIPPW (this);
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91 menuActive = true;
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92 mgr.positionPopup (this, popup,
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93 parentIPPW.parentMenuActive ? 1 : 0);
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94 pushed = true;
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95 }
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96 }
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97
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98 override void draw () {
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99 mgr.renderer.drawButton (x,y, w,h, pushed);
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100 adapter.draw (x,y);
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101 }
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102
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103 protected:
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104 void updateVal (Content) { // callback
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105 adapter.text = content.toString(cIndex);
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106 wdim omw = mw, omh = mh;
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107 adapter.getDimensions (mw, mh);
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108 if (omw != mw)
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109 parent.minWChange (this, mw);
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110 if (omh != mh)
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111 parent.minHChange (this, mh);
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112 }
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113 bool pushed = false;
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114 IRenderer.TextAdapter adapter;
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115 Content content;
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116 int cIndex;
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117 }