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busybox最新版的源码:学习和应用的好东东,多的不说了,大家看后再说吧

/*
 * Copyright (C) 2002 Roman Zippel <[e-mail]>
 * Released under the terms of the GNU GPL v2.0.
 */

#include <qapplication.h>
#include <qmainwindow.h>
#include <qtoolbar.h>
#include <qvbox.h>
#include <qsplitter.h>
#include <qlistview.h>
#include <qtextview.h>
#include <qlineedit.h>
#include <qmenubar.h>
#include <qmessagebox.h>
#include <qaction.h>
#include <qheader.h>
#include <qfiledialog.h>
#include <qregexp.h>

#include <stdlib.h>

#include "lkc.h"
#include "qconf.h"

#include "qconf.moc"
#include "images.c"

#ifdef _
# undef _
# define _ qgettext
#endif

static QApplication *configApp;

static inline QString qgettext(const char* str)
{
  return QString::fromLocal8Bit(gettext(str));
}

static inline QString qgettext(const QString& str)
{
  return QString::fromLocal8Bit(gettext(str.latin1()));
}

ConfigSettings::ConfigSettings()
	: showAll(false), showName(false), showRange(false), showData(false)
{
}

#if QT_VERSION >= 300
/**
 * Reads the list column settings from the application settings.
 */
void ConfigSettings::readListSettings()
{
	showAll = readBoolEntry("/kconfig/qconf/showAll", false);
	showName = readBoolEntry("/kconfig/qconf/showName", false);
	showRange = readBoolEntry("/kconfig/qconf/showRange", false);
	showData = readBoolEntry("/kconfig/qconf/showData", false);
}

/**
 * Reads a list of integer values from the application settings.
 */
QValueList<int> ConfigSettings::readSizes(const QString& key, bool *ok)
{
	QValueList<int> result;
	QStringList entryList = readListEntry(key, ok);
	if (ok) {
		QStringList::Iterator it;
		for (it = entryList.begin(); it != entryList.end(); ++it)
			result.push_back((*it).toInt());
	}

	return result;
}

/**
 * Writes a list of integer values to the application settings.
 */
bool ConfigSettings::writeSizes(const QString& key, const QValueList<int>& value)
{
	QStringList stringList;
	QValueList<int>::ConstIterator it;

	for (it = value.begin(); it != value.end(); ++it)
		stringList.push_back(QString::number(*it));
	return writeEntry(key, stringList);
}
#endif


/*
 * update all the children of a menu entry
 *   removes/adds the entries from the parent widget as necessary
 *
 * parent: either the menu list widget or a menu entry widget
 * menu: entry to be updated
 */
template <class P>
void ConfigList::updateMenuList(P* parent, struct menu* menu)
{
	struct menu* child;
	ConfigItem* item;
	ConfigItem* last;
	bool visible;
	enum prop_type type;

	if (!menu) {
		while ((item = parent->firstChild()))
			delete item;
		return;
	}

	last = parent->firstChild();
	if (last && !last->goParent)
		last = 0;
	for (child = menu->list; child; child = child->next) {
		item = last ? last->nextSibling() : parent->firstChild();
		type = child->prompt ? child->prompt->type : P_UNKNOWN;

		switch (mode) {
		case menuMode:
			if (!(child->flags & MENU_ROOT))
				goto hide;
			break;
		case symbolMode:
			if (child->flags & MENU_ROOT)
				goto hide;
			break;
		default:
			break;
		}

		visible = menu_is_visible(child);
		if (showAll || visible) {
			if (!item || item->menu != child)
				item = new ConfigItem(parent, last, child, visible);
			else
				item->testUpdateMenu(visible);

			if (mode == fullMode || mode == menuMode || type != P_MENU)
				updateMenuList(item, child);
			else
				updateMenuList(item, 0);
			last = item;
			continue;
		}
	hide:
		if (item && item->menu == child) {
			last = parent->firstChild();
			if (last == item)
				last = 0;
			else while (last->nextSibling() != item)
				last = last->nextSibling();
			delete item;
		}
	}
}

#if QT_VERSION >= 300
/*
 * set the new data
 * TODO check the value
 */
void ConfigItem::okRename(int col)
{
	Parent::okRename(col);
	sym_set_string_value(menu->sym, text(dataColIdx).latin1());
}
#endif

/*
 * update the displayed of a menu entry
 */
void ConfigItem::updateMenu(void)
{
	ConfigList* list;
	struct symbol* sym;
	struct property *prop;
	QString prompt;
	int type;
	tristate expr;

	list = listView();
	if (goParent) {
		setPixmap(promptColIdx, list->menuBackPix);
		prompt = "..";
		goto set_prompt;
	}

	sym = menu->sym;
	prop = menu->prompt;
	prompt = QString::fromLocal8Bit(menu_get_prompt(menu));

	if (prop) switch (prop->type) {
	case P_MENU:
		if (list->mode == singleMode || list->mode == symbolMode) {
			/* a menuconfig entry is displayed differently
			 * depending whether it's at the view root or a child.
			 */
			if (sym && list->rootEntry == menu)
				break;
			setPixmap(promptColIdx, list->menuPix);
		} else {
			if (sym)
				break;
			setPixmap(promptColIdx, 0);
		}
		goto set_prompt;
	case P_COMMENT:
		setPixmap(promptColIdx, 0);
		goto set_prompt;
	default:
		;
	}
	if (!sym)
		goto set_prompt;

	setText(nameColIdx, QString::fromLocal8Bit(sym->name));

	type = sym_get_type(sym);
	switch (type) {
	case S_BOOLEAN:
	case S_TRISTATE:
		char ch;

		if (!sym_is_changable(sym) && !list->showAll) {
			setPixmap(promptColIdx, 0);
			setText(noColIdx, QString::null);
			setText(modColIdx, QString::null);
			setText(yesColIdx, QString::null);
			break;
		}
		expr = sym_get_tristate_value(sym);
		switch (expr) {
		case yes:
			if (sym_is_choice_value(sym) && type == S_BOOLEAN)
				setPixmap(promptColIdx, list->choiceYesPix);
			else
				setPixmap(promptColIdx, list->symbolYesPix);
			setText(yesColIdx, "Y");
			ch = 'Y';
			break;
		case mod:
			setPixmap(promptColIdx, list->symbolModPix);
			setText(modColIdx, "M");
			ch = 'M';
			break;
		default:
			if (sym_is_choice_value(sym) && type == S_BOOLEAN)
				setPixmap(promptColIdx, list->choiceNoPix);
			else
				setPixmap(promptColIdx, list->symbolNoPix);
			setText(noColIdx, "N");
			ch = 'N';
			break;
		}
		if (expr != no)
			setText(noColIdx, sym_tristate_within_range(sym, no) ? "_" : 0);
		if (expr != mod)
			setText(modColIdx, sym_tristate_within_range(sym, mod) ? "_" : 0);
		if (expr != yes)
			setText(yesColIdx, sym_tristate_within_range(sym, yes) ? "_" : 0);

		setText(dataColIdx, QChar(ch));
		break;
	case S_INT:
	case S_HEX:
	case S_STRING:
		const char* data;

		data = sym_get_string_value(sym);

#if QT_VERSION >= 300
		int i = list->mapIdx(dataColIdx);
		if (i >= 0)
			setRenameEnabled(i, TRUE);
#endif
		setText(dataColIdx, data);
		if (type == S_STRING)
			prompt = QString("%1: %2").arg(prompt).arg(data);
		else
			prompt = QString("(%2) %1").arg(prompt).arg(data);
		break;
	}
	if (!sym_has_value(sym) && visible)
		prompt += " (NEW)";
set_prompt:
	setText(promptColIdx, prompt);
}

void ConfigItem::testUpdateMenu(bool v)
{
	ConfigItem* i;

	visible = v;
	if (!menu)
		return;

	sym_calc_value(menu->sym);
	if (menu->flags & MENU_CHANGED) {
		/* the menu entry changed, so update all list items */
		menu->flags &= ~MENU_CHANGED;
		for (i = (ConfigItem*)menu->data; i; i = i->nextItem)
			i->updateMenu();
	} else if (listView()->updateAll)
		updateMenu();
}

void ConfigItem::paintCell(QPainter* p, const QColorGroup& cg, int column, int width, int align)
{
	ConfigList* list = listView();

	if (visible) {
		if (isSelected() && !list->hasFocus() && list->mode == menuMode)
			Parent::paintCell(p, list->inactivedColorGroup, column, width, align);
		else
			Parent::paintCell(p, cg, column, width, align);
	} else
		Parent::paintCell(p, list->disabledColorGroup, column, width, align);
}

/*
 * construct a menu entry
 */
void ConfigItem::init(void)
{
	if (menu) {
		ConfigList* list = listView();
		nextItem = (ConfigItem*)menu->data;
		menu->data = this;

		if (list->mode != fullMode)
			setOpen(TRUE);
		sym_calc_value(menu->sym);
	}
	updateMenu();
}

/*
 * destruct a menu entry
 */
ConfigItem::~ConfigItem(void)
{
	if (menu) {
		ConfigItem** ip = (ConfigItem**)&menu->data;
		for (; *ip; ip = &(*ip)->nextItem) {
			if (*ip == this) {
				*ip = nextItem;
				break;
			}
		}
	}
}

void ConfigLineEdit::show(ConfigItem* i)
{
	item = i;
	if (sym_get_string_value(item->menu->sym))
		setText(QString::fromLocal8Bit(sym_get_string_value(item->menu->sym)));
	else
		setText(QString::null);
	Parent::show();
	setFocus();
}

void ConfigLineEdit::keyPressEvent(QKeyEvent* e)
{
	switch (e->key()) {
	case Key_Escape:
		break;
	case Key_Return:
	case Key_Enter:
		sym_set_string_value(item->menu->sym, text().latin1());
		parent()->updateList(item);
		break;
	default:
		Parent::keyPressEvent(e);
		return;
	}
	e->accept();
	parent()->list->setFocus();
	hide();
}

ConfigList::ConfigList(ConfigView* p, ConfigMainWindow* cv, ConfigSettings* configSettings)
	: Parent(p), cview(cv),
	  updateAll(false),
	  symbolYesPix(xpm_symbol_yes), symbolModPix(xpm_symbol_mod), symbolNoPix(xpm_symbol_no),
	  choiceYesPix(xpm_choice_yes), choiceNoPix(xpm_choice_no),
	  menuPix(xpm_menu), menuInvPix(xpm_menu_inv), menuBackPix(xpm_menuback), voidPix(xpm_void),
	  showAll(false), showName(false), showRange(false), showData(false),
	  rootEntry(0)
{
	int i;

	setSorting(-1);
	setRootIsDecorated(TRUE);
	disabledColorGroup = palette().active();
	disabledColorGroup.setColor(QColorGroup::Text, palette().disabled().text());
	inactivedColorGroup = palette().active();
	inactivedColorGroup.setColor(QColorGroup::Highlight, palette().disabled().highlight());

	connect(this, SIGNAL(selectionChanged(void)),
		SLOT(updateSelection(void)));

	if (configSettings) {
		showAll = configSettings->showAll;
		showName = configSettings->showName;
		showRange = configSettings->showRange;
		showData = configSettings->showData;
	}

	for (i = 0; i < colNr; i++)
		colMap[i] = colRevMap[i] = -1;
	addColumn(promptColIdx, "Option");

	reinit();
}

void ConfigList::reinit(void)
{
	removeColumn(dataColIdx);
	removeColumn(yesColIdx);
	removeColumn(modColIdx);
	removeColumn(noColIdx);
	removeColumn(nameColIdx);

	if (showName)
		addColumn(nameColIdx, "Name");
	if (showRange) {
		addColumn(noColIdx, "N");
		addColumn(modColIdx, "M");
		addColumn(yesColIdx, "Y");
	}
	if (showData)
		addColumn(dataColIdx, "Value");

	updateListAll();
}

void ConfigList::updateSelection(void)
{
	struct menu *menu;
	enum prop_type type;

	ConfigItem* item = (ConfigItem*)selectedItem();
	if (!item)
		return;

	cview->setHelp(item);

	menu = item->menu;
	if (!menu)
		return;
	type = menu->prompt ? menu->prompt->type : P_UNKNOWN;
	if (mode == menuMode && type == P_MENU)
		emit menuSelected(menu);
}

void ConfigList::updateList(ConfigItem* item)
{
	ConfigItem* last = 0;

	if (!rootEntry)
		goto update;

	if (rootEntry != &rootmenu && (mode == singleMode ||
	    (mode == symbolMode && rootEntry->parent != &rootmenu))) {
		item = firstChild();
		if (!item)
			item = new ConfigItem(this, 0, true);
		last = item;
	}