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qconf.cc
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qconf.cc
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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2002 Roman Zippel <[email protected]>
* Copyright (C) 2015 Boris Barbulovski <[email protected]>
*/
#include <QAction>
#include <QApplication>
#include <QCloseEvent>
#include <QDebug>
#include <QDesktopWidget>
#include <QFileDialog>
#include <QLabel>
#include <QLayout>
#include <QList>
#include <QMenu>
#include <QMenuBar>
#include <QMessageBox>
#include <QToolBar>
#include <stdlib.h>
#include "lkc.h"
#include "qconf.h"
#include "images.h"
static QApplication *configApp;
static ConfigSettings *configSettings;
QAction *ConfigMainWindow::saveAction;
ConfigSettings::ConfigSettings()
: QSettings("kernel.org", "qconf")
{
}
/**
* Reads a list of integer values from the application settings.
*/
QList<int> ConfigSettings::readSizes(const QString& key, bool *ok)
{
QList<int> result;
if (contains(key))
{
QStringList entryList = value(key).toStringList();
QStringList::Iterator it;
for (it = entryList.begin(); it != entryList.end(); ++it)
result.push_back((*it).toInt());
*ok = true;
}
else
*ok = false;
return result;
}
/**
* Writes a list of integer values to the application settings.
*/
bool ConfigSettings::writeSizes(const QString& key, const QList<int>& value)
{
QStringList stringList;
QList<int>::ConstIterator it;
for (it = value.begin(); it != value.end(); ++it)
stringList.push_back(QString::number(*it));
setValue(key, stringList);
return true;
}
QIcon ConfigItem::symbolYesIcon;
QIcon ConfigItem::symbolModIcon;
QIcon ConfigItem::symbolNoIcon;
QIcon ConfigItem::choiceYesIcon;
QIcon ConfigItem::choiceNoIcon;
QIcon ConfigItem::menuIcon;
QIcon ConfigItem::menubackIcon;
/*
* 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) {
setIcon(promptColIdx, menubackIcon);
prompt = "..";
goto set_prompt;
}
sym = menu->sym;
prop = menu->prompt;
prompt = 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;
setIcon(promptColIdx, menuIcon);
} else {
if (sym)
break;
setIcon(promptColIdx, QIcon());
}
goto set_prompt;
case P_COMMENT:
setIcon(promptColIdx, QIcon());
prompt = "*** " + prompt + " ***";
goto set_prompt;
default:
;
}
if (!sym)
goto set_prompt;
setText(nameColIdx, sym->name);
type = sym_get_type(sym);
switch (type) {
case S_BOOLEAN:
case S_TRISTATE:
char ch;
if (!sym_is_changeable(sym) && list->optMode == normalOpt) {
setIcon(promptColIdx, QIcon());
break;
}
expr = sym_get_tristate_value(sym);
switch (expr) {
case yes:
if (sym_is_choice_value(sym) && type == S_BOOLEAN)
setIcon(promptColIdx, choiceYesIcon);
else
setIcon(promptColIdx, symbolYesIcon);
ch = 'Y';
break;
case mod:
setIcon(promptColIdx, symbolModIcon);
ch = 'M';
break;
default:
if (sym_is_choice_value(sym) && type == S_BOOLEAN)
setIcon(promptColIdx, choiceNoIcon);
else
setIcon(promptColIdx, symbolNoIcon);
ch = 'N';
break;
}
setText(dataColIdx, QChar(ch));
break;
case S_INT:
case S_HEX:
case S_STRING:
setText(dataColIdx, sym_get_string_value(sym));
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();
}
/*
* construct a menu entry
*/
void ConfigItem::init(void)
{
if (menu) {
ConfigList* list = listView();
nextItem = (ConfigItem*)menu->data;
menu->data = this;
if (list->mode != fullMode)
setExpanded(true);
sym_calc_value(menu->sym);
if (menu->sym) {
enum symbol_type type = menu->sym->type;
// Allow to edit "int", "hex", and "string" in-place in
// the data column. Unfortunately, you cannot specify
// the flags per column. Set ItemIsEditable for all
// columns here, and check the column in createEditor().
if (type == S_INT || type == S_HEX || type == S_STRING)
setFlags(flags() | Qt::ItemIsEditable);
}
}
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;
}
}
}
}
QWidget *ConfigItemDelegate::createEditor(QWidget *parent,
const QStyleOptionViewItem &option,
const QModelIndex &index) const
{
ConfigItem *item;
// Only the data column is editable
if (index.column() != dataColIdx)
return nullptr;
// You cannot edit invisible menus
item = static_cast<ConfigItem *>(index.internalPointer());
if (!item || !item->menu || !menu_is_visible(item->menu))
return nullptr;
return QStyledItemDelegate::createEditor(parent, option, index);
}
void ConfigItemDelegate::setModelData(QWidget *editor,
QAbstractItemModel *model,
const QModelIndex &index) const
{
QLineEdit *lineEdit;
ConfigItem *item;
struct symbol *sym;
bool success;
lineEdit = qobject_cast<QLineEdit *>(editor);
// If this is not a QLineEdit, use the parent's default.
// (does this happen?)
if (!lineEdit)
goto parent;
item = static_cast<ConfigItem *>(index.internalPointer());
if (!item || !item->menu)
goto parent;
sym = item->menu->sym;
if (!sym)
goto parent;
success = sym_set_string_value(sym, lineEdit->text().toUtf8().data());
if (success) {
ConfigList::updateListForAll();
} else {
QMessageBox::information(editor, "qconf",
"Cannot set the data (maybe due to out of range).\n"
"Setting the old value.");
lineEdit->setText(sym_get_string_value(sym));
}
parent:
QStyledItemDelegate::setModelData(editor, model, index);
}
ConfigList::ConfigList(QWidget *parent, const char *name)
: QTreeWidget(parent),
updateAll(false),
showName(false), mode(singleMode), optMode(normalOpt),
rootEntry(0), headerPopup(0)
{
setObjectName(name);
setSortingEnabled(false);
setRootIsDecorated(true);
setVerticalScrollMode(ScrollPerPixel);
setHorizontalScrollMode(ScrollPerPixel);
setHeaderLabels(QStringList() << "Option" << "Name" << "Value");
connect(this, &ConfigList::itemSelectionChanged,
this, &ConfigList::updateSelection);
if (name) {
configSettings->beginGroup(name);
showName = configSettings->value("/showName", false).toBool();
optMode = (enum optionMode)configSettings->value("/optionMode", 0).toInt();
configSettings->endGroup();
connect(configApp, &QApplication::aboutToQuit,
this, &ConfigList::saveSettings);
}
showColumn(promptColIdx);
setItemDelegate(new ConfigItemDelegate(this));
allLists.append(this);
reinit();
}
ConfigList::~ConfigList()
{
allLists.removeOne(this);
}
bool ConfigList::menuSkip(struct menu *menu)
{
if (optMode == normalOpt && menu_is_visible(menu))
return false;
if (optMode == promptOpt && menu_has_prompt(menu))
return false;
if (optMode == allOpt)
return false;
return true;
}
void ConfigList::reinit(void)
{
hideColumn(nameColIdx);
if (showName)
showColumn(nameColIdx);
updateListAll();
}
void ConfigList::setOptionMode(QAction *action)
{
if (action == showNormalAction)
optMode = normalOpt;
else if (action == showAllAction)
optMode = allOpt;
else
optMode = promptOpt;
updateListAll();
}
void ConfigList::saveSettings(void)
{
if (!objectName().isEmpty()) {
configSettings->beginGroup(objectName());
configSettings->setValue("/showName", showName);
configSettings->setValue("/optionMode", (int)optMode);
configSettings->endGroup();
}
}
ConfigItem* ConfigList::findConfigItem(struct menu *menu)
{
ConfigItem* item = (ConfigItem*)menu->data;
for (; item; item = item->nextItem) {
if (this == item->listView())
break;
}
return item;
}
void ConfigList::updateSelection(void)
{
struct menu *menu;
enum prop_type type;
if (selectedItems().count() == 0)
return;
ConfigItem* item = (ConfigItem*)selectedItems().first();
if (!item)
return;
menu = item->menu;
emit menuChanged(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* last = 0;
ConfigItem *item;
if (!rootEntry) {
if (mode != listMode)
goto update;
QTreeWidgetItemIterator it(this);
while (*it) {
item = (ConfigItem*)(*it);
if (!item->menu)
continue;
item->testUpdateMenu(menu_is_visible(item->menu));
++it;
}
return;
}
if (rootEntry != &rootmenu && (mode == singleMode ||
(mode == symbolMode && rootEntry->parent != &rootmenu))) {
item = (ConfigItem *)topLevelItem(0);
if (!item)
item = new ConfigItem(this, 0, true);
last = item;
}
if ((mode == singleMode || (mode == symbolMode && !(rootEntry->flags & MENU_ROOT))) &&
rootEntry->sym && rootEntry->prompt) {
item = last ? last->nextSibling() : nullptr;
if (!item)
item = new ConfigItem(this, last, rootEntry, true);
else
item->testUpdateMenu(true);
updateMenuList(item, rootEntry);
update();
resizeColumnToContents(0);
return;
}
update:
updateMenuList(rootEntry);
update();
resizeColumnToContents(0);
}
void ConfigList::updateListForAll()
{
QListIterator<ConfigList *> it(allLists);
while (it.hasNext()) {
ConfigList *list = it.next();
list->updateList();
}
}
void ConfigList::updateListAllForAll()
{
QListIterator<ConfigList *> it(allLists);
while (it.hasNext()) {
ConfigList *list = it.next();
list->updateList();
}
}
void ConfigList::setValue(ConfigItem* item, tristate val)
{
struct symbol* sym;
int type;
tristate oldval;
sym = item->menu ? item->menu->sym : 0;
if (!sym)
return;
type = sym_get_type(sym);
switch (type) {
case S_BOOLEAN:
case S_TRISTATE:
oldval = sym_get_tristate_value(sym);
if (!sym_set_tristate_value(sym, val))
return;
if (oldval == no && item->menu->list)
item->setExpanded(true);
ConfigList::updateListForAll();
break;
}
}
void ConfigList::changeValue(ConfigItem* item)
{
struct symbol* sym;
struct menu* menu;
int type, oldexpr, newexpr;
menu = item->menu;
if (!menu)
return;
sym = menu->sym;
if (!sym) {
if (item->menu->list)
item->setExpanded(!item->isExpanded());
return;
}
type = sym_get_type(sym);
switch (type) {
case S_BOOLEAN:
case S_TRISTATE:
oldexpr = sym_get_tristate_value(sym);
newexpr = sym_toggle_tristate_value(sym);
if (item->menu->list) {
if (oldexpr == newexpr)
item->setExpanded(!item->isExpanded());
else if (oldexpr == no)
item->setExpanded(true);
}
if (oldexpr != newexpr)
ConfigList::updateListForAll();
break;
default:
break;
}
}
void ConfigList::setRootMenu(struct menu *menu)
{
enum prop_type type;
if (rootEntry == menu)
return;
type = menu && menu->prompt ? menu->prompt->type : P_UNKNOWN;
if (type != P_MENU)
return;
updateMenuList(0);
rootEntry = menu;
updateListAll();
if (currentItem()) {
setSelected(currentItem(), hasFocus());
scrollToItem(currentItem());
}
}
void ConfigList::setParentMenu(void)
{
ConfigItem* item;
struct menu *oldroot;
oldroot = rootEntry;
if (rootEntry == &rootmenu)
return;
setRootMenu(menu_get_parent_menu(rootEntry->parent));
QTreeWidgetItemIterator it(this);
while (*it) {
item = (ConfigItem *)(*it);
if (item->menu == oldroot) {
setCurrentItem(item);
scrollToItem(item);
break;
}
++it;
}
}
/*
* 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
*/
void ConfigList::updateMenuList(ConfigItem *parent, struct menu* menu)
{
struct menu* child;
ConfigItem* item;
ConfigItem* last;
bool visible;
enum prop_type type;
if (!menu) {
while (parent->childCount() > 0)
{
delete parent->takeChild(0);
}
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 (!menuSkip(child)) {
if (!child->sym && !child->list && !child->prompt)
continue;
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;
}
}
}
void ConfigList::updateMenuList(struct menu *menu)
{
struct menu* child;
ConfigItem* item;
ConfigItem* last;
bool visible;
enum prop_type type;
if (!menu) {
while (topLevelItemCount() > 0)
{
delete takeTopLevelItem(0);
}
return;
}
last = (ConfigItem *)topLevelItem(0);
if (last && !last->goParent)
last = 0;
for (child = menu->list; child; child = child->next) {
item = last ? last->nextSibling() : (ConfigItem *)topLevelItem(0);
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 (!menuSkip(child)) {
if (!child->sym && !child->list && !child->prompt)
continue;
if (!item || item->menu != child)
item = new ConfigItem(this, 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 = (ConfigItem *)topLevelItem(0);
if (last == item)
last = 0;
else while (last->nextSibling() != item)
last = last->nextSibling();
delete item;
}
}
}
void ConfigList::keyPressEvent(QKeyEvent* ev)
{
QTreeWidgetItem* i = currentItem();
ConfigItem* item;
struct menu *menu;
enum prop_type type;
if (ev->key() == Qt::Key_Escape && mode != fullMode && mode != listMode) {
emit parentSelected();
ev->accept();
return;
}
if (!i) {
Parent::keyPressEvent(ev);
return;
}
item = (ConfigItem*)i;
switch (ev->key()) {
case Qt::Key_Return:
case Qt::Key_Enter:
if (item->goParent) {
emit parentSelected();
break;
}
menu = item->menu;
if (!menu)
break;
type = menu->prompt ? menu->prompt->type : P_UNKNOWN;
if (type == P_MENU && rootEntry != menu &&
mode != fullMode && mode != menuMode) {
if (mode == menuMode)
emit menuSelected(menu);
else
emit itemSelected(menu);
break;
}
case Qt::Key_Space:
changeValue(item);
break;
case Qt::Key_N:
setValue(item, no);
break;
case Qt::Key_M:
setValue(item, mod);
break;
case Qt::Key_Y:
setValue(item, yes);
break;
default:
Parent::keyPressEvent(ev);
return;
}
ev->accept();
}
void ConfigList::mousePressEvent(QMouseEvent* e)
{
//QPoint p(contentsToViewport(e->pos()));
//printf("contentsMousePressEvent: %d,%d\n", p.x(), p.y());
Parent::mousePressEvent(e);
}
void ConfigList::mouseReleaseEvent(QMouseEvent* e)
{
QPoint p = e->pos();
ConfigItem* item = (ConfigItem*)itemAt(p);
struct menu *menu;
enum prop_type ptype;
QIcon icon;
int idx, x;
if (!item)
goto skip;
menu = item->menu;
x = header()->offset() + p.x();
idx = header()->logicalIndexAt(x);
switch (idx) {
case promptColIdx:
icon = item->icon(promptColIdx);
if (!icon.isNull()) {
int off = header()->sectionPosition(0) + visualRect(indexAt(p)).x() + 4; // 4 is Hardcoded image offset. There might be a way to do it properly.
if (x >= off && x < off + icon.availableSizes().first().width()) {
if (item->goParent) {
emit parentSelected();
break;
} else if (!menu)
break;
ptype = menu->prompt ? menu->prompt->type : P_UNKNOWN;
if (ptype == P_MENU && rootEntry != menu &&
mode != fullMode && mode != menuMode &&
mode != listMode)
emit menuSelected(menu);
else
changeValue(item);
}
}
break;
case dataColIdx:
changeValue(item);
break;
}
skip:
//printf("contentsMouseReleaseEvent: %d,%d\n", p.x(), p.y());
Parent::mouseReleaseEvent(e);
}
void ConfigList::mouseMoveEvent(QMouseEvent* e)
{
//QPoint p(contentsToViewport(e->pos()));
//printf("contentsMouseMoveEvent: %d,%d\n", p.x(), p.y());
Parent::mouseMoveEvent(e);
}
void ConfigList::mouseDoubleClickEvent(QMouseEvent* e)
{
QPoint p = e->pos();
ConfigItem* item = (ConfigItem*)itemAt(p);
struct menu *menu;
enum prop_type ptype;
if (!item)
goto skip;
if (item->goParent) {
emit parentSelected();
goto skip;
}
menu = item->menu;
if (!menu)
goto skip;
ptype = menu->prompt ? menu->prompt->type : P_UNKNOWN;
if (ptype == P_MENU && mode != listMode) {
if (mode == singleMode)
emit itemSelected(menu);
else if (mode == symbolMode)
emit menuSelected(menu);
} else if (menu->sym)
changeValue(item);
skip:
//printf("contentsMouseDoubleClickEvent: %d,%d\n", p.x(), p.y());
Parent::mouseDoubleClickEvent(e);
}
void ConfigList::focusInEvent(QFocusEvent *e)
{
struct menu *menu = NULL;
Parent::focusInEvent(e);
ConfigItem* item = (ConfigItem *)currentItem();
if (item) {
setSelected(item, true);
menu = item->menu;
}
emit gotFocus(menu);
}
void ConfigList::contextMenuEvent(QContextMenuEvent *e)
{
if (!headerPopup) {
QAction *action;
headerPopup = new QMenu(this);
action = new QAction("Show Name", this);
action->setCheckable(true);
connect(action, &QAction::toggled,
this, &ConfigList::setShowName);
connect(this, &ConfigList::showNameChanged,
action, &QAction::setChecked);
action->setChecked(showName);
headerPopup->addAction(action);
}
headerPopup->exec(e->globalPos());
e->accept();
}
void ConfigList::setShowName(bool on)
{
if (showName == on)
return;
showName = on;
reinit();
emit showNameChanged(on);
}
QList<ConfigList *> ConfigList::allLists;
QAction *ConfigList::showNormalAction;
QAction *ConfigList::showAllAction;
QAction *ConfigList::showPromptAction;
void ConfigList::setAllOpen(bool open)
{
QTreeWidgetItemIterator it(this);
while (*it) {
(*it)->setExpanded(open);
++it;
}
}
ConfigInfoView::ConfigInfoView(QWidget* parent, const char *name)
: Parent(parent), sym(0), _menu(0)
{
setObjectName(name);
setOpenLinks(false);
if (!objectName().isEmpty()) {
configSettings->beginGroup(objectName());
setShowDebug(configSettings->value("/showDebug", false).toBool());
configSettings->endGroup();
connect(configApp, &QApplication::aboutToQuit,
this, &ConfigInfoView::saveSettings);
}
contextMenu = createStandardContextMenu();
QAction *action = new QAction("Show Debug Info", contextMenu);
action->setCheckable(true);
connect(action, &QAction::toggled,
this, &ConfigInfoView::setShowDebug);
connect(this, &ConfigInfoView::showDebugChanged,
action, &QAction::setChecked);
action->setChecked(showDebug());
contextMenu->addSeparator();
contextMenu->addAction(action);
}
void ConfigInfoView::saveSettings(void)
{
if (!objectName().isEmpty()) {
configSettings->beginGroup(objectName());
configSettings->setValue("/showDebug", showDebug());
configSettings->endGroup();
}
}
void ConfigInfoView::setShowDebug(bool b)
{
if (_showDebug != b) {
_showDebug = b;
if (_menu)
menuInfo();
else if (sym)
symbolInfo();
emit showDebugChanged(b);
}
}
void ConfigInfoView::setInfo(struct menu *m)
{
if (_menu == m)
return;
_menu = m;
sym = NULL;
if (!_menu)
clear();
else
menuInfo();
}
void ConfigInfoView::symbolInfo(void)
{
QString str;
str += "<big>Symbol: <b>";
str += print_filter(sym->name);
str += "</b></big><br><br>value: ";
str += print_filter(sym_get_string_value(sym));
str += "<br>visibility: ";
str += sym->visible == yes ? "y" : sym->visible == mod ? "m" : "n";