Mercurial > projects > mde
view mde/gui/widget/PopupMenu.d @ 118:9ac208b53582
Unittest for mde.gui.widget.layout.
author | Diggory Hardy <diggory.hardy@gmail.com> |
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date | Sun, 28 Dec 2008 10:55:15 +0000 |
parents | aba2dd815a1f |
children | d28aea50c6da |
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/* LICENSE BLOCK Part of mde: a Modular D game-oriented Engine Copyright © 2007-2008 Diggory Hardy This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ /************************************************************************************************* * Pop-up menus based on content structures. *************************************************************************************************/ module mde.gui.widget.PopupMenu; import mde.gui.widget.Widget; import mde.gui.widget.textContent; import mde.gui.widget.TextWidget; import mde.gui.widget.layout; import mde.content.miscContent; import mde.gui.exception; debug { import tango.util.log.Log : Log, Logger; private Logger logger; static this () { logger = Log.getLogger ("mde.gui.widget.PopupMenu"); } } /************************************************************************************************* * Widget which pops up a menu based on a content. *************************************************************************************************/ class PopupMenuWidget : AParentSingleWidget { this (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) { content = c; WDCMinCheck (data, 1,1, content); subWidget = mgr.makeWidget (data.strings[0], content); adapter = mgr.renderer.getAdapter; adapter.text = content.toString (1); adapter.getDimensions (mw, mh); w = mw; h = mh; super (mgr, id, data); } override int clickEvent (wdabs, wdabs, ubyte b, bool state) { if (b == 1 && state == true) { // If active, the popup is closed by WidgetManager since the click isn't on the popup. if (!pushed) { pushed = true; mgr.addPopup (this, subWidget); // causes redraw mgr.addClickCallback (&openMenuCallback); // prevents first up-click from closing menu, if on self. } } return 0; } override void popupClose () { pushed = false; } override bool popupParentClick () { pushed = false; return true; } override void draw () { mgr.renderer.drawButton (x,y, w,h, pushed); adapter.draw (x,y); } protected: bool openMenuCallback (wdabs cx, wdabs cy, ubyte b, bool state) { if (b == 1 && state == false) { // receive first up-click mgr.removeCallbacks (cast(void*) this); if (cx >= x && cx < x+w && cy >= y && cy < y+h) return true; // up-click is on self; don't close the menu } return false; } bool pushed = false; IRenderer.TextAdapter adapter; IContent content; } /************************************************************************************************* * Widget which pops up a sub-menu based on a content on mouse-over. *************************************************************************************************/ class SubMenuWidget : PopupMenuWidget { this (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) { super (mgr, id, data, c); } override int clickEvent (wdabs, wdabs, ubyte b, bool state) { return 0; } override void highlight (bool state) { if (state && !pushed) { pushed = true; mgr.addPopup (this, subWidget, 1); // causes redraw } } } /************************************************************************************************* * A function which returns a ContentListWidget or MenuButtonContentWidget. *************************************************************************************************/ IChildWidget flatMenuContent (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) { if (c is null) throw new ContentException; if (cast(IContentList) c) return new ContentListWidget(mgr,id,data,c); else if (cast(EventContent) c) return new MenuButtonContentWidget(mgr,id,data,c); else // generic uneditable option return new DisplayContentWidget(mgr,id,data,c); } /************************************************************************************************* * A function which returns a SubMenuWidget or MenuButtonContentWidget. *************************************************************************************************/ IChildWidget subMenuContent (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) { if (c is null) throw new ContentException; if (cast(IContentList) c) return new SubMenuWidget(mgr,id,data,c); else if (cast(EventContent) c) return new MenuButtonContentWidget(mgr,id,data,c); else // generic uneditable option return new DisplayContentWidget(mgr,id,data,c); } /************************************************************************************************* * A menu content-button, like ButtonContentWidget, but which can be activated with the up-click. *************************************************************************************************/ class MenuButtonContentWidget : ATextWidget { this (IWidgetManager mgr, widgetID id, WidgetData data, IContent c) { content = cast(EventContent) c; WDCMinCheck (data, 1,0, content); adapter = mgr.renderer.getAdapter (); super (mgr, id, data); } override bool setup (uint n, uint flags) { if (!(flags & 3)) return false; // string or renderer (and possibly font) changed adapter.text = content.toString(1); return super.setup (n, 3); // force redimensioning } override int clickEvent (wdabs, wdabs, ubyte b, bool state) { if (b == 1) { // on up or down click pushed = false; mgr.requestRedraw; content.endEvent; } return 0; } override void highlight (bool state) { pushed = state; } override void draw () { mgr.renderer.drawButton (x,y, w,h, pushed); adapter.draw (x,y); } protected: EventContent content; bool pushed; }