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module dropsitewindow;

version(Tango) {
    import tango.text.Util;
    import tango.text.Ascii;
    import tango.text.convert.Format: format = Format;
} else {
    import std.string;
    alias strip trim;
}

import qt.gui.QWidget;
import qt.gui.QLabel;
import qt.gui.QTableWidget;
import qt.gui.QPushButton;
import qt.gui.QVBoxLayout;
import qt.gui.QDialogButtonBox;

import droparea;


class DropSiteWindow : public QWidget
{
public:
	
	this()
	{
		abstractLabel = new QLabel(tr("This example accepts drags from other "
			"applications and displays the MIME types "
			"provided by the drag object."));
		
		abstractLabel.setWordWrap(true);
		abstractLabel.adjustSize();

		dropArea = new DropArea;
		dropArea.changed.connect(&updateFormatsTable);

		string[] labels;
		labels ~= tr("Format");
		labels ~= tr("Content");

		formatsTable = new QTableWidget;
		formatsTable.setColumnCount(2);
		formatsTable.setEditTriggers(QAbstractItemView.NoEditTriggers);
		formatsTable.setHorizontalHeaderLabels(labels);
		formatsTable.horizontalHeader().setStretchLastSection(true);

		clearButton = new QPushButton(tr("Clear"));
		quitButton = new QPushButton(tr("Quit"));

		buttonBox = new QDialogButtonBox;
		buttonBox.addButton(clearButton, QDialogButtonBox.ActionRole);
		buttonBox.addButton(quitButton, QDialogButtonBox.RejectRole);

		quitButton.pressed.connect(&close);
		clearButton.pressed.connect(&dropArea.clearArea);

		QVBoxLayout mainLayout = new QVBoxLayout;
		mainLayout.addWidget(abstractLabel);
		mainLayout.addWidget(dropArea);
		mainLayout.addWidget(formatsTable);
		mainLayout.addWidget(buttonBox);
		setLayout(mainLayout);

		setWindowTitle(tr("Drop Site"));
		setMinimumSize(350, 500);
	}

	void updateFormatsTable(QMimeData mimeData)
	{
		formatsTable.setRowCount(0);
		if (!mimeData)
			return;

		foreach (string format; mimeData.formats()) {
			QTableWidgetItem formatItem = new QTableWidgetItem(format);
			formatItem.setFlags(Qt.ItemIsEnabled);
			formatItem.setTextAlignment(Qt.AlignTop | Qt.AlignLeft);

			string text;
			if (format == "text/plain") {
				text = trim(mimeData.text());
			} else if (format == "text/html") {
				text = trim(mimeData.html());
			} else if (format == "text/uri-list") {
				QUrl[] urlList = mimeData.urls();
				for (int i = 0; i < urlList.length && i < 32; ++i) {
					string url = urlList[i].path();
					text ~= url ~ " ";
				}
			} else {
				QByteArray data = mimeData.data(format);
				for (int i = 0; i < data.size() && i < 32; ++i) {
					version(Tango)
					    string hex = toUupper(Format("{0:x}", data.at(i)));
					else
					    string hex = toupper(std.string.format("%x", data.at(i)));					
					text ~= hex ~ " ";
				}
			}

			int row = formatsTable.rowCount();
			formatsTable.insertRow(row);
			formatsTable.setItem(row, 0, new QTableWidgetItem(format));
			formatsTable.setItem(row, 1, new QTableWidgetItem(text));
		}

		formatsTable.resizeColumnToContents(0);
	}

private:

	DropArea dropArea;
	QLabel abstractLabel;
	QTableWidget formatsTable;

	QPushButton clearButton;
	QPushButton quitButton;
	QDialogButtonBox buttonBox;
}