kconfig: Add search option for xconfig

Implement a simple search request for xconfig.  Currently the capabilities are
rather simple (the same as menuconfig).

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

1 files changed, 284 insertions, 160 deletions

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 4590cd31623f..2befaeac6e64 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -6,16 +6,20 @@
 #include <qapplication.h>
 #include <qmainwindow.h>
 #include <qtoolbar.h>
+#include <qlayout.h>
 #include <qvbox.h>
 #include <qsplitter.h>
 #include <qlistview.h>
-#include <qtextview.h>
+#include <qtextbrowser.h>
 #include <qlineedit.h>
+#include <qlabel.h>
+#include <qpushbutton.h>
 #include <qmenubar.h>
 #include <qmessagebox.h>
 #include <qaction.h>
 #include <qheader.h>
 #include <qfiledialog.h>
+#include <qdragobject.h>
 #include <qregexp.h>
 
 #include <stdlib.h>
@@ -35,12 +39,12 @@ static QApplication *configApp;
 
 static inline QString qgettext(const char* str)
 {
-  return QString::fromLocal8Bit(gettext(str));
+        return QString::fromLocal8Bit(gettext(str));
 }
 
 static inline QString qgettext(const QString& str)
 {
-  return QString::fromLocal8Bit(gettext(str.latin1()));
+        return QString::fromLocal8Bit(gettext(str.latin1()));
 }
 
 ConfigSettings::ConfigSettings()
@@ -355,6 +359,12 @@ ConfigItem::~ConfigItem(void)
         }
 }
 
+ConfigLineEdit::ConfigLineEdit(ConfigView* parent)
+        : Parent(parent)
+{
+        connect(this, SIGNAL(lostFocus()), SLOT(hide()));
+}
+
 void ConfigLineEdit::show(ConfigItem* i)
 {
         item = i;
@@ -385,8 +395,8 @@ void ConfigLineEdit::keyPressEvent(QKeyEvent* e)
         hide();
 }
 
-ConfigList::ConfigList(ConfigView* p, ConfigMainWindow* cv, ConfigSettings* configSettings)
-        : Parent(p), cview(cv),
+ConfigList::ConfigList(ConfigView* p, ConfigSettings* configSettings)
+        : Parent(p),
           updateAll(false),
           symbolYesPix(xpm_symbol_yes), symbolModPix(xpm_symbol_mod), symbolNoPix(xpm_symbol_no),
           choiceYesPix(xpm_choice_yes), choiceNoPix(xpm_choice_no),
@@ -450,9 +460,8 @@ void ConfigList::updateSelection(void)
         if (!item)
                 return;
 
-        cview->setHelp(item);
-
         menu = item->menu;
+        emit menuChanged(menu);
         if (!menu)
                 return;
         type = menu->prompt ? menu->prompt->type : P_UNKNOWN;
@@ -464,8 +473,20 @@ void ConfigList::updateList(ConfigItem* item)
 {
         ConfigItem* last = 0;
 
-        if (!rootEntry)
-                goto update;
+        if (!rootEntry) {
+                if (mode != listMode)
+                        goto update;
+                QListViewItemIterator it(this);
+                ConfigItem* item;
+
+                for (; it.current(); ++it) {
+                        item = (ConfigItem*)it.current();
+                        if (!item->menu)
+                                continue;
+                        item->testUpdateMenu(menu_is_visible(item->menu));
+                }
+                return;
+        }
 
         if (rootEntry != &rootmenu && (mode == singleMode ||
             (mode == symbolMode && rootEntry->parent != &rootmenu))) {
@@ -610,7 +631,7 @@ void ConfigList::keyPressEvent(QKeyEvent* ev)
         struct menu *menu;
         enum prop_type type;
 
-        if (ev->key() == Key_Escape && mode != fullMode) {
+        if (ev->key() == Key_Escape && mode != fullMode && mode != listMode) {
                 emit parentSelected();
                 ev->accept();
                 return;
@@ -767,11 +788,10 @@ void ConfigList::focusInEvent(QFocusEvent *e)
 
 ConfigView* ConfigView::viewList;
 
-ConfigView::ConfigView(QWidget* parent, ConfigMainWindow* cview,
-                       ConfigSettings *configSettings)
+ConfigView::ConfigView(QWidget* parent, ConfigSettings *configSettings)
         : Parent(parent)
 {
-        list = new ConfigList(this, cview, configSettings);
+        list = new ConfigList(this, configSettings);
         lineEdit = new ConfigLineEdit(this);
         lineEdit->hide();
 
@@ -807,13 +827,238 @@ void ConfigView::updateListAll(void)
                 v->list->updateListAll();
 }
 
+ConfigInfoView::ConfigInfoView(QWidget* parent, const char *name)
+        : Parent(parent, name), menu(0)
+{
+}
+
+void ConfigInfoView::setShowDebug(bool b)
+{
+        if (_showDebug != b) {
+                _showDebug = b;
+                if (menu)
+                        menuInfo();
+                emit showDebugChanged(b);
+        }
+}
+
+void ConfigInfoView::setInfo(struct menu *m)
+{
+        menu = m;
+        if (!menu)
+                clear();
+        else
+                menuInfo();
+}
+
+void ConfigInfoView::setSource(const QString& name)
+{
+        const char *p = name.latin1();
+
+        menu = NULL;
+
+        switch (p[0]) {
+        case 'm':
+                if (sscanf(p, "m%p", &menu) == 1)
+                        menuInfo();
+                break;
+        }
+}
+
+void ConfigInfoView::menuInfo(void)
+{
+        struct symbol* sym;
+        QString head, debug, help;
+
+        sym = menu->sym;
+        if (sym) {
+                if (menu->prompt) {
+                        head += "<big><b>";
+                        head += print_filter(_(menu->prompt->text));
+                        head += "</b></big>";
+                        if (sym->name) {
+                                head += " (";
+                                head += print_filter(sym->name);
+                                head += ")";
+                        }
+                } else if (sym->name) {
+                        head += "<big><b>";
+                        head += print_filter(sym->name);
+                        head += "</b></big>";
+                }
+                head += "<br><br>";
+
+                if (showDebug())
+                        debug = debug_info(sym);
+
+                help = print_filter(_(sym->help));
+        } else if (menu->prompt) {
+                head += "<big><b>";
+                head += print_filter(_(menu->prompt->text));
+                head += "</b></big><br><br>";
+                if (showDebug()) {
+                        if (menu->prompt->visible.expr) {
+                                debug += "&nbsp;&nbsp;dep: ";
+                                expr_print(menu->prompt->visible.expr, expr_print_help, &debug, E_NONE);
+                                debug += "<br><br>";
+                        }
+                }
+        }
+        if (showDebug())
+                debug += QString().sprintf("defined at %s:%d<br><br>", menu->file->name, menu->lineno);
+
+        setText(head + debug + help);
+}
+
+QString ConfigInfoView::debug_info(struct symbol *sym)
+{
+        QString debug;
+
+        debug += "type: ";
+        debug += print_filter(sym_type_name(sym->type));
+        if (sym_is_choice(sym))
+                debug += " (choice)";
+        debug += "<br>";
+        if (sym->rev_dep.expr) {
+                debug += "reverse dep: ";
+                expr_print(sym->rev_dep.expr, expr_print_help, &debug, E_NONE);
+                debug += "<br>";
+        }
+        for (struct property *prop = sym->prop; prop; prop = prop->next) {
+                switch (prop->type) {
+                case P_PROMPT:
+                case P_MENU:
+                        debug += "prompt: ";
+                        debug += print_filter(_(prop->text));
+                        debug += "<br>";
+                        break;
+                case P_DEFAULT:
+                        debug += "default: ";
+                        expr_print(prop->expr, expr_print_help, &debug, E_NONE);
+                        debug += "<br>";
+                        break;
+                case P_CHOICE:
+                        if (sym_is_choice(sym)) {
+                                debug += "choice: ";
+                                expr_print(prop->expr, expr_print_help, &debug, E_NONE);
+                                debug += "<br>";
+                        }
+                        break;
+                case P_SELECT:
+                        debug += "select: ";
+                        expr_print(prop->expr, expr_print_help, &debug, E_NONE);
+                        debug += "<br>";
+                        break;
+                case P_RANGE:
+                        debug += "range: ";
+                        expr_print(prop->expr, expr_print_help, &debug, E_NONE);
+                        debug += "<br>";
+                        break;
+                default:
+                        debug += "unknown property: ";
+                        debug += prop_get_type_name(prop->type);
+                        debug += "<br>";
+                }
+                if (prop->visible.expr) {
+                        debug += "&nbsp;&nbsp;&nbsp;&nbsp;dep: ";
+                        expr_print(prop->visible.expr, expr_print_help, &debug, E_NONE);
+                        debug += "<br>";
+                }
+        }
+        debug += "<br>";
+
+        return debug;
+}
+
+QString ConfigInfoView::print_filter(const QString &str)
+{
+        QRegExp re("[<>&\"\\n]");
+        QString res = str;
+        for (int i = 0; (i = res.find(re, i)) >= 0;) {
+                switch (res[i].latin1()) {
+                case '<':
+                        res.replace(i, 1, "&lt;");
+                        i += 4;
+                        break;
+                case '>':
+                        res.replace(i, 1, "&gt;");
+                        i += 4;
+                        break;
+                case '&':
+                        res.replace(i, 1, "&amp;");
+                        i += 5;
+                        break;
+                case '"':
+                        res.replace(i, 1, "&quot;");
+                        i += 6;
+                        break;
+                case '\n':
+                        res.replace(i, 1, "<br>");
+                        i += 4;
+                        break;
+                }
+        }
+        return res;
+}
+
+void ConfigInfoView::expr_print_help(void *data, const char *str)
+{
+        reinterpret_cast<QString*>(data)->append(print_filter(str));
+}
+
+ConfigSearchWindow::ConfigSearchWindow(QWidget* parent)
+        : Parent(parent), result(NULL)
+{
+        setCaption("Search Config");
+
+        QVBoxLayout* layout1 = new QVBoxLayout(this, 11, 6);
+        QHBoxLayout* layout2 = new QHBoxLayout(0, 0, 6);
+        layout2->addWidget(new QLabel("Find:", this));
+        editField = new QLineEdit(this);
+        connect(editField, SIGNAL(returnPressed()), SLOT(search()));
+        layout2->addWidget(editField);
+        searchButton = new QPushButton("Search", this);
+        searchButton->setAutoDefault(FALSE);
+        connect(searchButton, SIGNAL(clicked()), SLOT(search()));
+        layout2->addWidget(searchButton);
+        layout1->addLayout(layout2);
+
+        QSplitter* split = new QSplitter(this);
+        split->setOrientation(QSplitter::Vertical);
+        list = new ConfigView(split, NULL);
+        list->list->mode = listMode;
+        info = new ConfigInfoView(split);
+        connect(list->list, SIGNAL(menuChanged(struct menu *)),
+                info, SLOT(setInfo(struct menu *)));
+        layout1->addWidget(split);
+}
+
+void ConfigSearchWindow::search(void)
+{
+        struct symbol **p;
+        struct property *prop;
+        ConfigItem *lastItem = NULL;
+
+        free(result);
+        list->list->clear();
+
+        result = sym_re_search(editField->text().latin1());
+        if (!result)
+                return;
+        for (p = result; *p; p++) {
+                for_all_prompts((*p), prop)
+                        lastItem = new ConfigItem(list->list, lastItem, prop->menu,
+                                                  menu_is_visible(prop->menu));
+        }
+}
+
 /*
  * Construct the complete config widget
  */
 ConfigMainWindow::ConfigMainWindow(void)
 {
         QMenuBar* menu;
-        bool ok;
+        bool ok, showDebug;
         int x, y, width, height;
 
         QWidget *d = configApp->desktop();
@@ -843,18 +1088,19 @@ ConfigMainWindow::ConfigMainWindow(void)
         split1->setOrientation(QSplitter::Horizontal);
         setCentralWidget(split1);
 
-        menuView = new ConfigView(split1, this, configSettings);
+        menuView = new ConfigView(split1, configSettings);
         menuList = menuView->list;
 
         split2 = new QSplitter(split1);
         split2->setOrientation(QSplitter::Vertical);
 
         // create config tree
-        configView = new ConfigView(split2, this, configSettings);
+        configView = new ConfigView(split2, configSettings);
         configList = configView->list;
 
-        helpText = new QTextView(split2);
+        helpText = new ConfigInfoView(split2);
         helpText->setTextFormat(Qt::RichText);
+        helpText->setShowDebug(showDebug);
 
         setTabOrder(configList, helpText);
         configList->setFocus();
@@ -873,6 +1119,8 @@ ConfigMainWindow::ConfigMainWindow(void)
           connect(saveAction, SIGNAL(activated()), SLOT(saveConfig()));
         QAction *saveAsAction = new QAction("Save As...", "Save &As...", 0, this);
           connect(saveAsAction, SIGNAL(activated()), SLOT(saveConfigAs()));
+        QAction *searchAction = new QAction("Search", "&Search", CTRL+Key_F, this);
+          connect(searchAction, SIGNAL(activated()), SLOT(searchConfig()));
         QAction *singleViewAction = new QAction("Single View", QPixmap(xpm_single_view), "Split View", 0, this);
           connect(singleViewAction, SIGNAL(activated()), SLOT(showSingleView()));
         QAction *splitViewAction = new QAction("Split View", QPixmap(xpm_split_view), "Split View", 0, this);
@@ -899,7 +1147,8 @@ ConfigMainWindow::ConfigMainWindow(void)
         QAction *showDebugAction = new QAction(NULL, "Show Debug Info", 0, this);
           showDebugAction->setToggleAction(TRUE);
           showDebugAction->setOn(showDebug);
-          connect(showDebugAction, SIGNAL(toggled(bool)), SLOT(setShowDebug(bool)));
+          connect(showDebugAction, SIGNAL(toggled(bool)), helpText, SLOT(setShowDebug(bool)));
+          connect(helpText, SIGNAL(showDebugChanged(bool)), showDebugAction, SLOT(setOn(bool)));
 
         QAction *showIntroAction = new QAction(NULL, "Introduction", 0, this);
           connect(showIntroAction, SIGNAL(activated()), SLOT(showIntro()));
@@ -923,6 +1172,8 @@ ConfigMainWindow::ConfigMainWindow(void)
         saveAction->addTo(config);
         saveAsAction->addTo(config);
         config->insertSeparator();
+        searchAction->addTo(config);
+        config->insertSeparator();
         quitAction->addTo(config);
 
         // create options menu
@@ -942,10 +1193,14 @@ ConfigMainWindow::ConfigMainWindow(void)
         showIntroAction->addTo(helpMenu);
         showAboutAction->addTo(helpMenu);
 
+        connect(configList, SIGNAL(menuChanged(struct menu *)),
+                helpText, SLOT(setInfo(struct menu *)));
         connect(configList, SIGNAL(menuSelected(struct menu *)),
                 SLOT(changeMenu(struct menu *)));
         connect(configList, SIGNAL(parentSelected()),
                 SLOT(goBack()));
+        connect(menuList, SIGNAL(menuChanged(struct menu *)),
+                helpText, SLOT(setInfo(struct menu *)));
         connect(menuList, SIGNAL(menuSelected(struct menu *)),
                 SLOT(changeMenu(struct menu *)));
 
@@ -977,42 +1232,6 @@ ConfigMainWindow::ConfigMainWindow(void)
         delete configSettings;
 }
 
-static QString print_filter(const QString &str)
-{
-        QRegExp re("[<>&\"\\n]");
-        QString res = str;
-        for (int i = 0; (i = res.find(re, i)) >= 0;) {
-                switch (res[i].latin1()) {
-                case '<':
-                        res.replace(i, 1, "&lt;");
-                        i += 4;
-                        break;
-                case '>':
-                        res.replace(i, 1, "&gt;");
-                        i += 4;
-                        break;
-                case '&':
-                        res.replace(i, 1, "&amp;");
-                        i += 5;
-                        break;
-                case '"':
-                        res.replace(i, 1, "&quot;");
-                        i += 6;
-                        break;
-                case '\n':
-                        res.replace(i, 1, "<br>");
-                        i += 4;
-                        break;
-                }
-        }
-        return res;
-}
-
-static void expr_print_help(void *data, const char *str)
-{
-        reinterpret_cast<QString*>(data)->append(print_filter(str));
-}
-
 /*
  * display a new help entry as soon as a new menu entry is selected
  */
@@ -1021,105 +1240,9 @@ void ConfigMainWindow::setHelp(QListViewItem* item)
         struct symbol* sym;
         struct menu* menu = 0;
 
-        configList->parent()->lineEdit->hide();
         if (item)
                 menu = ((ConfigItem*)item)->menu;
-        if (!menu) {
-                helpText->setText(QString::null);
-                return;
-        }
-
-        QString head, debug, help;
-        menu = ((ConfigItem*)item)->menu;
-        sym = menu->sym;
-        if (sym) {
-                if (menu->prompt) {
-                        head += "<big><b>";
-                        head += print_filter(_(menu->prompt->text));
-                        head += "</b></big>";
-                        if (sym->name) {
-                                head += " (";
-                                head += print_filter(_(sym->name));
-                                head += ")";
-                        }
-                } else if (sym->name) {
-                        head += "<big><b>";
-                        head += print_filter(_(sym->name));
-                        head += "</b></big>";
-                }
-                head += "<br><br>";
-
-                if (showDebug) {
-                        debug += "type: ";
-                        debug += print_filter(sym_type_name(sym->type));
-                        if (sym_is_choice(sym))
-                                debug += " (choice)";
-                        debug += "<br>";
-                        if (sym->rev_dep.expr) {
-                                debug += "reverse dep: ";
-                                expr_print(sym->rev_dep.expr, expr_print_help, &debug, E_NONE);
-                                debug += "<br>";
-                        }
-                        for (struct property *prop = sym->prop; prop; prop = prop->next) {
-                                switch (prop->type) {
-                                case P_PROMPT:
-                                case P_MENU:
-                                        debug += "prompt: ";
-                                        debug += print_filter(_(prop->text));
-                                        debug += "<br>";
-                                        break;
-                                case P_DEFAULT:
-                                        debug += "default: ";
-                                        expr_print(prop->expr, expr_print_help, &debug, E_NONE);
-                                        debug += "<br>";
-                                        break;
-                                case P_CHOICE:
-                                        if (sym_is_choice(sym)) {
-                                                debug += "choice: ";
-                                                expr_print(prop->expr, expr_print_help, &debug, E_NONE);
-                                                debug += "<br>";
-                                        }
-                                        break;
-                                case P_SELECT:
-                                        debug += "select: ";
-                                        expr_print(prop->expr, expr_print_help, &debug, E_NONE);
-                                        debug += "<br>";
-                                        break;
-                                case P_RANGE:
-                                        debug += "range: ";
-                                        expr_print(prop->expr, expr_print_help, &debug, E_NONE);
-                                        debug += "<br>";
-                                        break;
-                                default:
-                                        debug += "unknown property: ";
-                                        debug += prop_get_type_name(prop->type);
-                                        debug += "<br>";
-                                }
-                                if (prop->visible.expr) {
-                                        debug += "&nbsp;&nbsp;&nbsp;&nbsp;dep: ";
-                                        expr_print(prop->visible.expr, expr_print_help, &debug, E_NONE);
-                                        debug += "<br>";
-                                }
-                        }
-                        debug += "<br>";
-                }
-
-                help = print_filter(_(sym->help));
-        } else if (menu->prompt) {
-                head += "<big><b>";
-                head += print_filter(_(menu->prompt->text));
-                head += "</b></big><br><br>";
-                if (showDebug) {
-                        if (menu->prompt->visible.expr) {
-                                debug += "&nbsp;&nbsp;dep: ";
-                                expr_print(menu->prompt->visible.expr, expr_print_help, &debug, E_NONE);
-                                debug += "<br><br>";
-                        }
-                }
-        }
-        if (showDebug)
-                debug += QString().sprintf("defined at %s:%d<br><br>", menu->file->name, menu->lineno);
-        helpText->setText(head + debug + help);
+        helpText->setInfo(menu);
 }
 
 void ConfigMainWindow::loadConfig(void)
@@ -1147,6 +1270,13 @@ void ConfigMainWindow::saveConfigAs(void)
                 QMessageBox::information(this, "qconf", "Unable to save configuration!");
 }
 
+void ConfigMainWindow::searchConfig(void)
+{
+        if (!searchWindow)
+                searchWindow = new ConfigSearchWindow(this);
+        searchWindow->show();
+}
+
 void ConfigMainWindow::changeMenu(struct menu *menu)
 {
         configList->setRootMenu(menu);
@@ -1233,13 +1363,6 @@ void ConfigMainWindow::setShowAll(bool b)
         menuList->updateListAll();
 }
 
-void ConfigMainWindow::setShowDebug(bool b)
-{
-        if (showDebug == b)
-                return;
-        showDebug = b;
-}
-
 void ConfigMainWindow::setShowName(bool b)
 {
         if (configList->showName == b)
@@ -1334,7 +1457,7 @@ void ConfigMainWindow::saveSettings(void)
         configSettings->writeEntry("/kconfig/qconf/showRange", configList->showRange);
         configSettings->writeEntry("/kconfig/qconf/showData", configList->showData);
         configSettings->writeEntry("/kconfig/qconf/showAll", configList->showAll);
-        configSettings->writeEntry("/kconfig/qconf/showDebug", showDebug);
+        configSettings->writeEntry("/kconfig/qconf/showDebug", helpText->showDebug());
 
         QString entry;
         switch(configList->mode) {
@@ -1417,9 +1540,10 @@ int main(int ac, char** av)
         v = new ConfigMainWindow();
 
         //zconfdump(stdout);
-        v->show();
+        configApp->setMainWidget(v);
         configApp->connect(configApp, SIGNAL(lastWindowClosed()), SLOT(quit()));
         configApp->connect(configApp, SIGNAL(aboutToQuit()), v, SLOT(saveSettings()));
+        v->show();
         configApp->exec();
 
         return 0;