/*
 * Copyright (c) 2011 by RibbonSoft, GmbH. All rights reserved.
 * 
 * This file is part of the QCAD project.
 *
 * Licensees holding valid QCAD Professional Edition licenses 
 * may use this file in accordance with the QCAD License
 * Agreement provided with the Software.
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, 
 * INCLUDING THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS 
 * FOR A PARTICULAR PURPOSE.
 * 
 * See http://www.ribbonsoft.com for further details.
 */

include("CadToolBarPanel.js");


/**
 * \todo change to dockable widget instead of toolbar
 */
function CadToolBar(parent) {
    QWidget.call(this, parent);

    var buttonSize = RSettings.getIntValue(RSettings.CadToolBarIconSize, 32) * 1.25;
    
    this.includeBasePath = includeBasePath;

    // widget inside toolbar is needed to allow two rows of
    // tool buttons in a layout:
    this.objectName="CadToolBar";
    this.minimumWidth = buttonSize;
    this.minimumHeight = buttonSize;
    var stackedLayout = new QStackedLayout();
    stackedLayout.objectName = "StackedLayout";
    stackedLayout.setContentsMargins(0,0,0,0);
    this.setLayout(stackedLayout);

    RMainWindowQt.getMainWindow().escape.connect(CadToolBar, "back");
}

CadToolBar.prototype = new QWidget();

CadToolBar.getPreferencesCategory = function() {
    return [qsTr("Widgets"), qsTr("CAD Toolbar")];
};

CadToolBar.applyPreferences = function(doc) {
    if (!isNull(doc)) {
        // document settings: nothing to do
        return;
    }

    var appWin = EAction.getMainWindow();
    if (isNull(appWin)) {
        return;
    }

    var cadToolBar = appWin.findChild("CadToolBar");
    CadToolBar.prototype.updateIconSize.call(cadToolBar);
};

CadToolBar.prototype.contextMenuEvent = function(event) {
    var appWin = EAction.getMainWindow();
    if (isNull(appWin)) {
        return;
    }
    //var cadToolBar = appWin.findChild("CadToolBar");
    var panelName = CadToolBar.getCurrentPanelName();
    if (panelName!=="MainToolsPanel") {
        CadToolBar.showPanel("MainToolsPanel");
    }
    else {
        var menu = new QMenu(this);
        menu.objectName = "ContextMenu";
        var action = menu.addAction(qsTr("Toggle title bar"));
        action.triggered.connect(function(checked) {
            var dock = appWin.findChild("CadToolsDock");
            if (isNull(dock.titleBarWidget())) {
                // remove title bar (set to empty widget):
                dock.setTitleBarWidget(new QWidget(null));
            }
            else {
                // show default title bar:
                dock.setTitleBarWidget(null);
            }
        });
        menu.exec(QCursor.pos());
    }
};

CadToolBar.back = function() {
    var panel = CadToolBar.getCurrentPanel();
    if (isNull(panel)) {
        return;
    }

    // no back for main tools panel:
    if (panel.objectName==="MainToolsPanel") {
        return;
    }

    CadToolBar.showPanel(panel.backMenuName, true);
};

CadToolBar.getPanel = function(title, name, hasBackButton) {
    var appWin = EAction.getMainWindow();
    if (isNull(appWin)) {
        return undefined;
    }
    var cadToolBar = appWin.findChild("CadToolBar");
    if (isNull(cadToolBar)) {
        return undefined;
    }

    var stackedLayout = cadToolBar.layout();

    var panel = cadToolBar.findChild(name);
    if (!isNull(panel)) {
        return panel;
    }

    panel = new CadToolBarPanel(cadToolBar, hasBackButton);
    panel.objectName = name;
    stackedLayout.addWidget(panel);
    return panel;
};

CadToolBar.showPanel = function(name, isBack) {
    if (isNull(isBack)) {
        isBack = false;
    }

    if (isNull(name)) {
        return;
    }

    var appWin = RMainWindowQt.getMainWindow();
    if (isNull(appWin)) {
        return;
    }

    var cadToolBar = appWin.findChild("CadToolBar");
    if (isNull(cadToolBar)) {
        return;
    }

    var backMenuName = CadToolBar.getCurrentPanelName();

    var stackedLayout = cadToolBar.layout();
    var panel = cadToolBar.findChild(name);
    if (isNull(panel)) {
        qWarning("CadToolBar: panel does not exist: ", name);
        return;
    }

    for (var i=0; i<stackedLayout.count(); ++i) {
        var w = stackedLayout.widget(i);
        if (!isNull(w)) {
            w.minimumHeight = 0;
            w.minimumWidth = 0;
        }
    }
    stackedLayout.setCurrentWidget(panel);

    if (!isBack && backMenuName!==panel.objectName && backMenuName!=="SnapToolsPanel") {
        CadToolBarPanel.setBackMenuName(panel, backMenuName);
    }
};

CadToolBar.getCurrentPanel = function() {
    var appWin = EAction.getMainWindow();
    if (isNull(appWin)) {
        return;
    }
    var cadToolBar = appWin.findChild("CadToolBar");
    if (isNull(cadToolBar)) {
        return undefined;
    }

    var stackedLayout = cadToolBar.layout();

    if (stackedLayout.currentIndex<0 || stackedLayout.currentIndex >= stackedLayout.count()) {
        return undefined;
    }

    return stackedLayout.widget(stackedLayout.currentIndex);
};

CadToolBar.getCurrentPanelName = function() {
    var w = CadToolBar.getCurrentPanel();
    if (isNull(w)) {
        return "";
    }

    return w.objectName;
};

CadToolBar.prototype.updateIconSize = function() {
    var columns = RSettings.getIntValue(RSettings.CadToolBarColumns, 2);
    var iconSize = RSettings.getIntValue(RSettings.CadToolBarIconSize, 32);
    var buttonSize = iconSize * 1.25;

    this.minimumWidth = buttonSize;
    this.minimumHeight = buttonSize;
    this.setFixedWidth(buttonSize*columns);
};