src/configDialog.cc

/*
 *  LDForge: LDraw parts authoring CAD
 *  Copyright (C) 2013, 2014 Santeri Piippo
 *
 *  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 3 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/>.
 *  =====================================================================
 *
 *  configDialog.cxx: Settings dialog and everything related to it.
 *  Actual configuration core is in config.cxx.
 */

#include <QGridLayout>
#include <QFileDialog>
#include <QColorDialog>
#include <QBoxLayout>
#include <QKeyEvent>
#include <QGroupBox>
#include <QDoubleSpinBox>
#include <QLineEdit>
#include <QCheckBox>
#include "main.h"
#include "configDialog.h"
#include "ldDocument.h"
#include "configuration.h"
#include "miscallenous.h"
#include "colors.h"
#include "colorSelector.h"
#include "glRenderer.h"
#include "ui_config.h"

EXTERN_CFGENTRY (String, backgroundColor);
EXTERN_CFGENTRY (String, mainColor);
EXTERN_CFGENTRY (Bool, colorizeObjectsList);
EXTERN_CFGENTRY (Bool, bfcRedGreenView);
EXTERN_CFGENTRY (Float, mainColorAlpha);
EXTERN_CFGENTRY (Int, lineThickness);
EXTERN_CFGENTRY (String, quickColorToolbar);
EXTERN_CFGENTRY (Bool, blackEdges);
EXTERN_CFGENTRY (Bool, antiAliasedLines);
EXTERN_CFGENTRY (Bool, listImplicitFiles);
EXTERN_CFGENTRY (String, downloadFilePath);
EXTERN_CFGENTRY (Bool, guessDownloadPaths);
EXTERN_CFGENTRY (Bool, autoCloseDownloadDialog);
EXTERN_CFGENTRY (Bool, useLogoStuds);
EXTERN_CFGENTRY (Bool,	drawLineLengths);
EXTERN_CFGENTRY (String, defaultName);
EXTERN_CFGENTRY (String, defaultUser);
EXTERN_CFGENTRY (Int, defaultLicense);
EXTERN_CFGENTRY (String, selectColorBlend);
EXTERN_CFGENTRY (String, ytruderPath);
EXTERN_CFGENTRY (String, rectifierPath);
EXTERN_CFGENTRY (String, intersectorPath);
EXTERN_CFGENTRY (String, covererPath);
EXTERN_CFGENTRY (String, isecalcPath);
EXTERN_CFGENTRY (String, edger2Path);
EXTERN_CFGENTRY (Bool, ytruderUsesWine);
EXTERN_CFGENTRY (Bool, rectifierUsesWine);
EXTERN_CFGENTRY (Bool, intersectorUsesWine);
EXTERN_CFGENTRY (Bool, covererUsesWine);
EXTERN_CFGENTRY (Bool, isecalcUsesWine);
EXTERN_CFGENTRY (Bool, edger2UsesWine);
EXTERN_CFGENTRY (Float,	gridCoarseCoordinateSnap);
EXTERN_CFGENTRY (Float,	gridCoarseAngleSnap);
EXTERN_CFGENTRY (Float, gridMediumCoordinateSnap);
EXTERN_CFGENTRY (Float,	gridMediumAngleSnap);
EXTERN_CFGENTRY (Float,	gridFineCoordinateSnap);
EXTERN_CFGENTRY (Float,	gridFineAngleSnap);
EXTERN_CFGENTRY (Bool, highlightObjectBelowCursor)
EXTERN_CFGENTRY (Int, roundPosition)
EXTERN_CFGENTRY (Int, roundMatrix)

const char* g_extProgPathFilter =
#ifdef _WIN32
	"Applications (*.exe)(*.exe);;All files (*.*)(*.*)";
#else
	"";
#endif

// =============================================================================
// =============================================================================
ConfigDialog::ConfigDialog (ConfigDialog::Tab deftab, QWidget* parent, Qt::WindowFlags f) :
	QDialog (parent, f)
{
	assert (g_win != null);
	ui = new Ui_ConfigUI;
	ui->setupUi (this);

	// Interface tab
	setButtonBackground (ui->backgroundColorButton, cfg::backgroundColor);
	connect (ui->backgroundColorButton, SIGNAL (clicked()),
			 this, SLOT (slot_setGLBackground()));

	setButtonBackground (ui->mainColorButton, cfg::mainColor);
	connect (ui->mainColorButton, SIGNAL (clicked()),
			 this, SLOT (slot_setGLForeground()));

	setButtonBackground (ui->selColorButton, cfg::selectColorBlend);
	connect (ui->selColorButton, SIGNAL (clicked()),
			 this, SLOT (slot_setGLSelectColor()));

	ui->mainColorAlpha->setValue (cfg::mainColorAlpha * 10.0f);
	ui->lineThickness->setValue (cfg::lineThickness);
	ui->colorizeObjects->setChecked (cfg::colorizeObjectsList);
	ui->colorBFC->setChecked (cfg::bfcRedGreenView);
	ui->blackEdges->setChecked (cfg::blackEdges);
	ui->m_aa->setChecked (cfg::antiAliasedLines);
	ui->implicitFiles->setChecked (cfg::listImplicitFiles);
	ui->m_logostuds->setChecked (cfg::useLogoStuds);
	ui->linelengths->setChecked (cfg::drawLineLengths);

	ui->roundPosition->setValue (cfg::roundPosition);
	ui->roundMatrix->setValue (cfg::roundMatrix);

	int i = 0;

	for (QAction* act : g_win->findChildren<QAction*>())
	{
		KeySequenceConfigEntry* cfg = g_win->shortcutForAction (act);

		if (cfg)
			addShortcut (*cfg, act, i);
	}

	ui->shortcutsList->setSortingEnabled (true);
	ui->shortcutsList->sortItems();

	connect (ui->shortcut_set, SIGNAL (clicked()), this, SLOT (slot_setShortcut()));
	connect (ui->shortcut_reset, SIGNAL (clicked()), this, SLOT (slot_resetShortcut()));
	connect (ui->shortcut_clear, SIGNAL (clicked()), this, SLOT (slot_clearShortcut()));

	quickColors = quickColorsFromConfig();
	updateQuickColorList();

	connect (ui->quickColor_add, SIGNAL (clicked()), this, SLOT (slot_setColor()));
	connect (ui->quickColor_remove, SIGNAL (clicked()), this, SLOT (slot_delColor()));
	connect (ui->quickColor_edit, SIGNAL (clicked()), this, SLOT (slot_setColor()));
	connect (ui->quickColor_addSep, SIGNAL (clicked()), this, SLOT (slot_addColorSeparator()));
	connect (ui->quickColor_moveUp, SIGNAL (clicked()), this, SLOT (slot_moveColor()));
	connect (ui->quickColor_moveDown, SIGNAL (clicked()), this, SLOT (slot_moveColor()));
	connect (ui->quickColor_clear, SIGNAL (clicked()), this, SLOT (slot_clearColors()));

	ui->downloadPath->setText (cfg::downloadFilePath);
	ui->guessNetPaths->setChecked (cfg::guessDownloadPaths);
	ui->autoCloseNetPrompt->setChecked (cfg::autoCloseDownloadDialog);
	connect (ui->findDownloadPath, SIGNAL (clicked (bool)), this, SLOT (slot_findDownloadFolder()));

	ui->m_profileName->setText (cfg::defaultName);
	ui->m_profileUsername->setText (cfg::defaultUser);
	ui->m_profileLicense->setCurrentIndex (cfg::defaultLicense);
	ui->gridCoarseCoordinateSnap->setValue (cfg::gridCoarseCoordinateSnap);
	ui->gridCoarseAngleSnap->setValue (cfg::gridCoarseAngleSnap);
	ui->gridMediumCoordinateSnap->setValue (cfg::gridMediumCoordinateSnap);
	ui->gridMediumAngleSnap->setValue (cfg::gridMediumAngleSnap);
	ui->gridFineCoordinateSnap->setValue (cfg::gridFineCoordinateSnap);
	ui->gridFineAngleSnap->setValue (cfg::gridFineAngleSnap);
	ui->highlightObjectBelowCursor->setChecked (cfg::highlightObjectBelowCursor);

	initExtProgs();
	selectPage (deftab);

	connect (ui->buttonBox, SIGNAL (clicked (QAbstractButton*)),
		this, SLOT (buttonClicked (QAbstractButton*)));

	connect (ui->m_pages, SIGNAL (currentChanged (int)),
		this, SLOT (selectPage (int)));

	connect (ui->m_pagelist, SIGNAL (currentRowChanged (int)),
		this, SLOT (selectPage (int)));
}

// =============================================================================
// =============================================================================
ConfigDialog::~ConfigDialog()
{
	delete ui;
}

// =============================================================================
// =============================================================================
void ConfigDialog::selectPage (int row)
{
	ui->m_pagelist->setCurrentRow (row);
	ui->m_pages->setCurrentIndex (row);
}

// =============================================================================
// Adds a shortcut entry to the list of shortcuts.
// =============================================================================
void ConfigDialog::addShortcut (KeySequenceConfigEntry& cfg, QAction* act, int& i)
{
	ShortcutListItem* item = new ShortcutListItem;
	item->setIcon (act->icon());
	item->setKeyConfig (&cfg);
	item->setAction (act);
	setShortcutText (item);

	// If the action doesn't have a valid icon, use an empty one
	// so that the list is kept aligned.
	if (act->icon().isNull())
		item->setIcon (getIcon ("empty"));

	ui->shortcutsList->insertItem (i++, item);
}

// =============================================================================
// =============================================================================
static struct LDExtProgInfo
{
	const String	name,
					iconname;
	String* const	path;
	QLineEdit*		input;
	QPushButton*	setPathButton;
#ifndef _WIN32
	bool* const		wine;
	QCheckBox*		wineBox;
#endif // _WIN32
} g_LDExtProgInfo[] =
{
#ifndef _WIN32
# define EXTPROG(NAME, LOWNAME) { #NAME, #LOWNAME, &cfg::LOWNAME##Path, null, null, &cfg::LOWNAME##UsesWine, null },
#else
# define EXTPROG(NAME, LOWNAME) { #NAME, #LOWNAME, &cfg::LOWNAME##Path, null, null },
#endif
	EXTPROG (Ytruder, ytruder)
	EXTPROG (Rectifier, rectifier)
	EXTPROG (Intersector, intersector)
	EXTPROG (Isecalc, isecalc)
	EXTPROG (Coverer, coverer)
	EXTPROG (Edger2, edger2)
#undef EXTPROG
};

// =============================================================================
// Initializes the stuff in the ext programs tab
// =============================================================================
void ConfigDialog::initExtProgs()
{
	QGridLayout* pathsLayout = new QGridLayout;
	int row = 0;

	for (LDExtProgInfo& info : g_LDExtProgInfo)
	{
		QLabel* icon = new QLabel,
		*progLabel = new QLabel (info.name);
		QLineEdit* input = new QLineEdit;
		QPushButton* setPathButton = new QPushButton;

		icon->setPixmap (getIcon (info.iconname));
		input->setText (*info.path);
		setPathButton->setIcon (getIcon ("folder"));
		info.input = input;
		info.setPathButton = setPathButton;

		connect (setPathButton, SIGNAL (clicked()), this, SLOT (slot_setExtProgPath()));

		pathsLayout->addWidget (icon, row, 0);
		pathsLayout->addWidget (progLabel, row, 1);
		pathsLayout->addWidget (input, row, 2);
		pathsLayout->addWidget (setPathButton, row, 3);

#ifndef _WIN32
		QCheckBox* wineBox = new QCheckBox ("Wine");
		wineBox->setChecked (*info.wine);
		info.wineBox = wineBox;
		pathsLayout->addWidget (wineBox, row, 4);
#endif

		++row;
	}

	ui->extProgs->setLayout (pathsLayout);
}

// =============================================================================
// Set the settings based on widget data.
// =============================================================================
void ConfigDialog::applySettings()
{
	// Apply configuration
	cfg::colorizeObjectsList = ui->colorizeObjects->isChecked();
	cfg::bfcRedGreenView = ui->colorBFC->isChecked();
	cfg::blackEdges = ui->blackEdges->isChecked();
	cfg::mainColorAlpha = ((double) ui->mainColorAlpha->value()) / 10.0;
	cfg::lineThickness = ui->lineThickness->value();
	cfg::listImplicitFiles = ui->implicitFiles->isChecked();
	cfg::downloadFilePath = ui->downloadPath->text();
	cfg::guessDownloadPaths = ui->guessNetPaths->isChecked();
	cfg::autoCloseDownloadDialog = ui->autoCloseNetPrompt->isChecked();
	cfg::useLogoStuds = ui->m_logostuds->isChecked();
	cfg::drawLineLengths = ui->linelengths->isChecked();
	cfg::defaultUser = ui->m_profileUsername->text();
	cfg::defaultName = ui->m_profileName->text();
	cfg::defaultLicense = ui->m_profileLicense->currentIndex();
	cfg::antiAliasedLines = ui->m_aa->isChecked();
	cfg::highlightObjectBelowCursor = ui->highlightObjectBelowCursor->isChecked();
	cfg::roundPosition = ui->roundPosition->value();
	cfg::roundMatrix = ui->roundMatrix->value();

	// Rebuild the quick color toolbar
	g_win->setQuickColors (quickColors);
	cfg::quickColorToolbar = quickColorString();

	// Set the grid settings
	cfg::gridCoarseCoordinateSnap = ui->gridCoarseCoordinateSnap->value();
	cfg::gridCoarseAngleSnap = ui->gridCoarseAngleSnap->value();
	cfg::gridMediumCoordinateSnap = ui->gridMediumCoordinateSnap->value();
	cfg::gridMediumAngleSnap = ui->gridMediumAngleSnap->value();
	cfg::gridFineCoordinateSnap = ui->gridFineCoordinateSnap->value();
	cfg::gridFineAngleSnap = ui->gridFineAngleSnap->value();

	// Apply key shortcuts
	g_win->updateActionShortcuts();

	// Ext program settings
	for (const LDExtProgInfo& info : g_LDExtProgInfo)
	{
		*info.path = info.input->text();

#ifndef _WIN32
		*info.wine = info.wineBox->isChecked();
#endif // _WIN32
	}

	Config::save();
	reloadAllSubfiles();
	loadLogoedStuds();
	g_win->R()->setBackground();
	g_win->doFullRefresh();
	g_win->updateDocumentList();
}

// =============================================================================
// A dialog button was clicked
// =============================================================================
void ConfigDialog::buttonClicked (QAbstractButton* button)
{
	typedef QDialogButtonBox QDDB;
	QDialogButtonBox* dbb = ui->buttonBox;

	if (button == dbb->button (QDDB::Ok))
	{
		applySettings();
		accept();
	} elif (button == dbb->button (QDDB::Apply))
	{
		applySettings();
	} elif (button == dbb->button (QDDB::Cancel))
	{
		reject();
	}
}

// =============================================================================
// Update the list of color toolbar items in the quick color tab.
// =============================================================================
void ConfigDialog::updateQuickColorList (LDQuickColor* sel)
{
	for (QListWidgetItem * item : quickColorItems)
		delete item;

	quickColorItems.clear();

	// Init table items
	for (LDQuickColor& entry : quickColors)
	{
		QListWidgetItem* item = new QListWidgetItem;

		if (entry.isSeparator())
		{
			item->setText ("--------");
			item->setIcon (getIcon ("empty"));
		}
		else
		{
			LDColor* col = entry.color();

			if (col == null)
			{
				item->setText ("[[unknown color]]");
				item->setIcon (getIcon ("error"));
			}
			else
			{
				item->setText (col->name);
				item->setIcon (makeColorIcon (col, 16));
			}
		}

		ui->quickColorList->addItem (item);
		quickColorItems << item;

		if (sel && &entry == sel)
		{
			ui->quickColorList->setCurrentItem (item);
			ui->quickColorList->scrollToItem (item);
		}
	}
}

// =============================================================================
// Quick colors: add or edit button was clicked.
// =============================================================================
void ConfigDialog::slot_setColor()
{
	LDQuickColor* entry = null;
	QListWidgetItem* item = null;
	const bool isNew = static_cast<QPushButton*> (sender()) == ui->quickColor_add;

	if (not isNew)
	{
		item = getSelectedQuickColor();

		if (not item)
			return;

		int i = getItemRow (item, quickColorItems);
		entry = &quickColors[i];

		if (entry->isSeparator() == true)
			return; // don't color separators
	}

	int defval = entry ? entry->color()->index : -1;
	int val;

	if (not ColorSelector::selectColor (val, defval, this))
		return;

	if (entry)
		entry->setColor (getColor (val));
	else
	{
		LDQuickColor entry (getColor (val), null);

		item = getSelectedQuickColor();
		int idx = (item) ? getItemRow (item, quickColorItems) + 1 : quickColorItems.size();

		quickColors.insert (idx, entry);
		entry = quickColors[idx];
	}

	updateQuickColorList (entry);
}

// =============================================================================
// Remove a quick color
// =============================================================================
void ConfigDialog::slot_delColor()
{
	if (ui->quickColorList->selectedItems().isEmpty())
		return;

	QListWidgetItem* item = ui->quickColorList->selectedItems() [0];
	quickColors.removeAt (getItemRow (item, quickColorItems));
	updateQuickColorList();
}

// =============================================================================
// Move a quick color up/down
// =============================================================================
void ConfigDialog::slot_moveColor()
{
	const bool up = (static_cast<QPushButton*> (sender()) == ui->quickColor_moveUp);

	if (ui->quickColorList->selectedItems().isEmpty())
		return;

	QListWidgetItem* item = ui->quickColorList->selectedItems() [0];
	int idx = getItemRow (item, quickColorItems);
	int dest = up ? (idx - 1) : (idx + 1);

	if (dest < 0 || dest >= quickColorItems.size())
		return; // destination out of bounds

	LDQuickColor tmp = quickColors[dest];
	quickColors[dest] = quickColors[idx];
	quickColors[idx] = tmp;

	updateQuickColorList (&quickColors[dest]);
}

// =============================================================================
//
// Add a separator to quick colors
//
void ConfigDialog::slot_addColorSeparator()
{
	quickColors << LDQuickColor::getSeparator();
	updateQuickColorList (&quickColors[quickColors.size() - 1]);
}

// =============================================================================
//
// Clear all quick colors
//
void ConfigDialog::slot_clearColors()
{
	quickColors.clear();
	updateQuickColorList();
}

// =============================================================================
//
// Pick a color and set the appropriate configuration option.
//
void ConfigDialog::pickColor (String& conf, QPushButton* button)
{
	QColor col = QColorDialog::getColor (QColor (conf));

	if (col.isValid())
	{
		int r = col.red(),
			g = col.green(),
			b = col.blue();

		String colname;
		colname.sprintf ("#%.2X%.2X%.2X", r, g, b);
		conf = colname;
		setButtonBackground (button, colname);
	}
}

// =============================================================================
// =============================================================================
void ConfigDialog::slot_setGLBackground()
{
	pickColor (cfg::backgroundColor, ui->backgroundColorButton);
}

// =============================================================================
// =============================================================================
void ConfigDialog::slot_setGLForeground()
{
	pickColor (cfg::mainColor, ui->mainColorButton);
}

// =============================================================================
// =============================================================================
void ConfigDialog::slot_setGLSelectColor()
{
	pickColor (cfg::selectColorBlend, ui->selColorButton);
}

// =============================================================================
// Sets background color of a given button.
// =============================================================================
void ConfigDialog::setButtonBackground (QPushButton* button, String value)
{
	button->setIcon (getIcon ("colorselect"));
	button->setAutoFillBackground (true);
	button->setStyleSheet (format ("background-color: %1", value));
}

// =============================================================================
// Finds the given list widget item in the list of widget items given.
// =============================================================================
int ConfigDialog::getItemRow (QListWidgetItem* item, QList<QListWidgetItem*>& haystack)
{
	int i = 0;

	for (QListWidgetItem* it : haystack)
	{
		if (it == item)
			return i;

		++i;
	}

	return -1;
}

// =============================================================================
// Which quick color is currently selected?
// =============================================================================
QListWidgetItem* ConfigDialog::getSelectedQuickColor()
{
	if (ui->quickColorList->selectedItems().isEmpty())
		return null;

	return ui->quickColorList->selectedItems() [0];
}

// =============================================================================
// Get the list of shortcuts selected
// =============================================================================
QList<ShortcutListItem*> ConfigDialog::getShortcutSelection()
{
	QList<ShortcutListItem*> out;

	for (QListWidgetItem* entry : ui->shortcutsList->selectedItems())
		out << static_cast<ShortcutListItem*> (entry);

	return out;
}

// =============================================================================
// Edit the shortcut of a given action.
// =============================================================================
void ConfigDialog::slot_setShortcut()
{
	QList<ShortcutListItem*> sel = getShortcutSelection();

	if (sel.size() < 1)
		return;

	ShortcutListItem* item = sel[0];

	if (KeySequenceDialog::staticDialog (item->keyConfig(), this))
		setShortcutText (item);
}

// =============================================================================
// Reset a shortcut to defaults
// =============================================================================
void ConfigDialog::slot_resetShortcut()
{
	QList<ShortcutListItem*> sel = getShortcutSelection();

	for (ShortcutListItem* item : sel)
	{
		item->keyConfig()->resetValue();
		setShortcutText (item);
	}
}

// =============================================================================
// Remove the shortcut of an action.
// =============================================================================
void ConfigDialog::slot_clearShortcut()
{
	QList<ShortcutListItem*> sel = getShortcutSelection();

	for (ShortcutListItem* item : sel)
	{
		item->keyConfig()->setValue (QKeySequence());
		setShortcutText (item);
	}
}

// =============================================================================
// Set the path of an external program
// =============================================================================
void ConfigDialog::slot_setExtProgPath()
{
	const LDExtProgInfo* info = null;

	for (const LDExtProgInfo& it : g_LDExtProgInfo)
	{
		if (it.setPathButton == sender())
		{
			info = &it;
			break;
		}
	}

	assert (info != null);
	String fpath = QFileDialog::getOpenFileName (this, format ("Path to %1", info->name), *info->path, g_extProgPathFilter);

	if (fpath.isEmpty())
		return;

	info->input->setText (fpath);
}

// =============================================================================
//
// '...' button pressed for the download path
//
void ConfigDialog::slot_findDownloadFolder()
{
	String dpath = QFileDialog::getExistingDirectory();
	ui->downloadPath->setText (dpath);
}

// =============================================================================
//
// Updates the text string for a given shortcut list item
//
void ConfigDialog::setShortcutText (ShortcutListItem* item)
{
	QAction* act = item->action();
	String label = act->iconText();
	String keybind = item->keyConfig()->getValue().toString();
	item->setText (format ("%1 (%2)", label, keybind));
}

// =============================================================================
// Gets the configuration string of the quick color toolbar
// =============================================================================
String ConfigDialog::quickColorString()
{
	String val;

	for (const LDQuickColor& entry : quickColors)
	{
		if (val.length() > 0)
			val += ':';

		if (entry.isSeparator())
			val += '|';
		else
			val += format ("%1", entry.color()->index);
	}

	return val;
}

// ===============================================================================================
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
// ===============================================================================================
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
// ===============================================================================================
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
// ===============================================================================================
KeySequenceDialog::KeySequenceDialog (QKeySequence seq, QWidget* parent, Qt::WindowFlags f) :
	QDialog (parent, f), seq (seq)
{
	lb_output = new QLabel;
	IMPLEMENT_DIALOG_BUTTONS

	setWhatsThis (tr ("Into this dialog you can input a key sequence for use as a "
		"shortcut in LDForge. Use OK to confirm the new shortcut and Cancel to "
		"dismiss."));

	QVBoxLayout* layout = new QVBoxLayout;
	layout->addWidget (lb_output);
	layout->addWidget (bbx_buttons);
	setLayout (layout);

	updateOutput();
}

// =============================================================================
// =============================================================================
bool KeySequenceDialog::staticDialog (KeySequenceConfigEntry* cfg, QWidget* parent)
{
	KeySequenceDialog dlg (cfg->getValue(), parent);

	if (dlg.exec() == QDialog::Rejected)
		return false;

	cfg->setValue (dlg.seq);
	return true;
}

// =============================================================================
// =============================================================================
void KeySequenceDialog::updateOutput()
{
	String shortcut = seq.toString();

	if (seq == QKeySequence())
		shortcut = "&lt;empty&gt;";

	String text = format ("<center><b>%1</b></center>", shortcut);
	lb_output->setText (text);
}

// =============================================================================
// =============================================================================
void KeySequenceDialog::keyPressEvent (QKeyEvent* ev)
{
	seq = ev->key() + ev->modifiers();
	updateOutput();
}