]> git.lyx.org Git - lyx.git/blobdiff - src/frontends/qt4/PanelStack.cpp
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[lyx.git] / src / frontends / qt4 / PanelStack.cpp
index 69158e1a8e98e9c2caffff3b0aa8fe30f4de9999..c61c8e02442f531fb3eae7ac2c0abde51a46f900 100644 (file)
 
 #include "PanelStack.h"
 
+#include "GuiApplication.h"
 #include "qt_helpers.h"
 
 #include "support/debug.h"
+#include "support/lassert.h"
 
+#include <QAbstractButton>
+#include <QApplication>
+#include <QComboBox>
 #include <QFontMetrics>
-#include <QStackedWidget>
-#include <QTreeWidget>
+#include <QGroupBox>
+#include <QHideEvent>
+#include <QHash>
 #include <QHBoxLayout>
 #include <QHeaderView>
-
-#include "support/lassert.h"
-
-#include <iostream>
+#include <QLabel>
+#include <QLineEdit>
+#include <QListWidget>
+#include <QPalette>
+#include <QPushButton>
+#include <QStackedWidget>
+#include <QTimer>
+#include <QTreeWidget>
+#include <QVBoxLayout>
 
 using namespace std;
 
@@ -35,25 +46,52 @@ namespace frontend {
 PanelStack::PanelStack(QWidget * parent)
        : QWidget(parent)
 {
+       delay_search_ = new QTimer(this);
+       search_ = new FancyLineEdit(this);
        list_ = new QTreeWidget(this);
        stack_ = new QStackedWidget(this);
 
+       // Configure the timer
+       delay_search_->setSingleShot(true);
+       connect(delay_search_, SIGNAL(timeout()), this, SLOT(search()));
+
+       // Configure tree
        list_->setRootIsDecorated(false);
        list_->setColumnCount(1);
-       // Hide the pointless list header
        list_->header()->hide();
-//     QStringList HeaderLabels;
-//     HeaderLabels << QString("Category");
-//     list_->setHeaderLabels(HeaderLabels);
+       setSectionResizeMode(list_->header(), QHeaderView::ResizeToContents);
+       list_->header()->setStretchLastSection(false);
+       list_->setMinimumSize(list_->viewport()->size());
 
-       connect(list_, SIGNAL(currentItemChanged (QTreeWidgetItem*, QTreeWidgetItem*)),
-               this, SLOT(switchPanel(QTreeWidgetItem *, QTreeWidgetItem*)));
+       connect(list_, SIGNAL(currentItemChanged(QTreeWidgetItem *,
+                                                QTreeWidgetItem *)),
+               this, SLOT(switchPanel(QTreeWidgetItem *, QTreeWidgetItem *)));
        connect(list_, SIGNAL(itemClicked (QTreeWidgetItem*, int)),
                this, SLOT(itemSelected(QTreeWidgetItem *, int)));
 
-       QHBoxLayout * layout = new QHBoxLayout(this);
-       layout->addWidget(list_, 0);
-       layout->addWidget(stack_, 1);
+       // Configure the search box
+       search_->setPlaceholderText(qt_("Search"));
+       search_->setButtonPixmap(FancyLineEdit::Right,
+                                getPixmap("images/", "editclear", "svgz,png"));
+       search_->setButtonVisible(FancyLineEdit::Right, true);
+       search_->setButtonToolTip(FancyLineEdit::Right, qt_("Clear text"));
+       search_->setAutoHideButton(FancyLineEdit::Right, true);
+       connect(search_, SIGNAL(rightButtonClicked()),
+               this, SLOT(resetSearch()));
+       connect(search_, SIGNAL(textEdited(QString)),
+               this, SLOT(filterChanged(QString)));
+       connect(search_, SIGNAL(downPressed()),
+               list_, SLOT(setFocus()));
+
+       // Create the output layout, horizontal plus a VBox on the left with the
+       // search box and the tree
+       QVBoxLayout * left_layout = new QVBoxLayout;
+       left_layout->addWidget(search_, 0);
+       left_layout->addWidget(list_, 1);
+
+       QHBoxLayout * main_layout = new QHBoxLayout(this);
+       main_layout->addLayout(left_layout, 0);
+       main_layout->addWidget(stack_, 1);
 }
 
 
@@ -67,13 +105,13 @@ void PanelStack::addCategory(QString const & name, QString const & parent)
 
        if (parent.isEmpty()) {
                item = new QTreeWidgetItem(list_);
-               item->setText(0, name);
+               item->setText(0, qt_(name));
        }
        else {
                if (!panel_map_.contains(parent))
                        addCategory(parent);
                item = new QTreeWidgetItem(panel_map_.value(parent));
-               item->setText(0, name);
+               item->setText(0, qt_(name));
                depth = 2;
                list_->setRootIsDecorated(true);
        }
@@ -81,17 +119,17 @@ void PanelStack::addCategory(QString const & name, QString const & parent)
        panel_map_[name] = item;
 
        QFontMetrics fm(list_->font());
-               
+
        // calculate the real size the current item needs in the listview
-       int itemsize = fm.width(name) + 10
-               + list_->indentation() * depth;
+       int itemsize = fm.width(qt_(name)) + 10 + list_->indentation() * depth;
        // adjust the listview width to the max. itemsize
        if (itemsize > list_->minimumWidth())
                list_->setMinimumWidth(itemsize);
 }
 
 
-void PanelStack::addPanel(QWidget * panel, QString const & name, QString const & parent)
+void PanelStack::addPanel(QWidget * panel, QString const & name,
+                          QString const & parent)
 {
        addCategory(name, parent);
        QTreeWidgetItem * item = panel_map_.value(name);
@@ -101,10 +139,19 @@ void PanelStack::addPanel(QWidget * panel, QString const & name, QString const &
 }
 
 
+void PanelStack::showPanel(QString const & name, bool show)
+{
+       QTreeWidgetItem * item = panel_map_.value(name, 0);
+       LASSERT(item, return);
+
+       item->setHidden(!show);
+}
+
+
 void PanelStack::setCurrentPanel(QString const & name)
 {
        QTreeWidgetItem * item = panel_map_.value(name, 0);
-       LASSERT(item, /**/);
+       LASSERT(item, return);
 
        // force on first set
        if (list_->currentItem() == item)
@@ -114,20 +161,186 @@ void PanelStack::setCurrentPanel(QString const & name)
 }
 
 
+bool PanelStack::isCurrentPanel(QString const & name) const
+{
+       QTreeWidgetItem * item = panel_map_.value(name, 0);
+       LASSERT(item, return false);
+
+       return (list_->currentItem() == item);
+}
+
+
 void PanelStack::switchPanel(QTreeWidgetItem * item,
                             QTreeWidgetItem * previous)
 {
+       // do nothing when clicked on whitespace (item=NULL)
+       if (!item)
+               return;
+
        // if we have a category, expand the tree and go to the
-       // first item
+       // first enabled item
        if (item->childCount() > 0) {
                item->setExpanded(true);
-               if (previous != item->child(0))
-                       list_->setCurrentItem(item->child(0));
+               if (previous && previous->parent() != item) {
+                       // Looks for a child not disabled
+                       for (int i = 0; i < item->childCount(); ++i) {
+                               if (item->child(i)->flags() & Qt::ItemIsEnabled) {
+                                       switchPanel(item->child(i), previous);
+                                       break;
+                               }
+                       }
+               }
        }
-       if (QWidget * w = widget_map_.value(item, 0))
+       else if (QWidget * w = widget_map_.value(item, 0)) {
                stack_->setCurrentWidget(w);
+       }
 }
 
+static bool matches(QString const & input, QString const & search)
+{
+       QString text = input;
+
+       // Check if the input contains the search string
+       return text.remove('&').contains(search, Qt::CaseInsensitive);
+}
+
+static void setTreeItemStatus(QTreeWidgetItem * tree_item, bool enabled)
+{
+       // Enable/disable the item
+       tree_item->setDisabled(!enabled);
+
+       // Change the color from black to gray or viceversa
+       QPalette::ColorGroup new_color =
+               enabled ? QPalette::Active : QPalette::Disabled;
+       tree_item->setTextColor(0, QApplication::palette().color(new_color,
+                                                                QPalette::Text));
+}
+
+void PanelStack::hideEvent(QHideEvent * event)
+{
+       QWidget::hideEvent(event);
+
+       // Programatically hidden (not simply minimized by the user)
+       if (!event->spontaneous()) {
+               resetSearch();
+       }
+}
+
+void PanelStack::resetSearch()
+{
+       search_->setText(QString());
+       search();
+}
+
+void PanelStack::filterChanged(QString const & /*search*/)
+{
+       // The text in the search box is changed, reset the timer
+       // and then search in the widgets
+       delay_search_->start(300);
+}
+
+void PanelStack::search()
+{
+       QString search = search_->text();
+       bool enable_all = search.isEmpty();
+
+       // If the search string is empty we enable all the items
+       // otherwise we disable everything and then selectively
+       // re-enable matching items
+       for (QTreeWidgetItem * tree_item : panel_map_) {
+               setTreeItemStatus(tree_item, enable_all);
+       }
+
+       for (QTreeWidgetItem * tree_item : panel_map_) {
+               // Current widget
+               QWidget * pane_widget = widget_map_[tree_item];
+
+               // First of all we look in the pane name
+               bool pane_matches = tree_item->text(0).contains(search,
+                                                               Qt::CaseInsensitive);
+
+               // If the tree item has an associated pane
+               if (pane_widget) {
+                       // Loops on the list of children widgets (recursive)
+                       QWidgetList children = pane_widget->findChildren<QWidget *>();
+                       for (QWidget * child_widget : children) {
+                               bool widget_matches = false;
+
+                               // Try to cast to the most common widgets and looks in it's
+                               // content.
+                               // It's bad OOP, it would be nice to have a QWidget::toString()
+                               // overloaded by each widget, but this would require to change
+                               // Qt or subclass each widget.
+                               // Note that we have to ignore the amperstand symbol
+                               if (QAbstractButton * button =
+                                   qobject_cast<QAbstractButton *>(child_widget)) {
+                                       widget_matches = matches(button->text(), search);
+
+                               } else if (QGroupBox * group_box =
+                                          qobject_cast<QGroupBox *>(child_widget)) {
+                                       widget_matches = matches(group_box->title(), search);
+
+                               } else if (QLabel * label =
+                                          qobject_cast<QLabel *>(child_widget)) {
+                                       widget_matches = matches(label->text(), search);
+
+                               } else if (QLineEdit * line_edit =
+                                          qobject_cast<QLineEdit *>(child_widget)) {
+                                       widget_matches = matches(line_edit->text(), search);
+
+                               } else if (QListWidget * list_widget =
+                                          qobject_cast<QListWidget *>(child_widget)) {
+                                       widget_matches =
+                                               list_widget->findItems(search,
+                                                                      Qt::MatchContains).count() > 0;
+
+                               } else if (QTreeWidget * tree_view =
+                                          qobject_cast<QTreeWidget *>(child_widget)) {
+                                       widget_matches =
+                                               tree_view->findItems(search,
+                                                                    Qt::MatchContains).count() > 0;
+
+                               } else if (QComboBox * combo_box =
+                                          qobject_cast<QComboBox *>(child_widget)) {
+                                       widget_matches =
+                                               combo_box->findText(search,
+                                                                   Qt::MatchContains) != -1;
+
+                               } else {
+                                       continue;
+                               }
+
+                               // If this widget meets the search criteria
+                               if (widget_matches && !enable_all) {
+                                       // The pane too meets the search criteria
+                                       pane_matches = true;
+
+                                       // Highlight the widget
+                                       QPalette widget_palette = child_widget->palette();
+                                       widget_palette.setColor(child_widget->foregroundRole(),
+                                                               Qt::red);
+                                       child_widget->setPalette(widget_palette);
+                               } else {
+                                       // Reset the color of the widget
+                                       child_widget->setPalette(QApplication::palette(child_widget));
+                               }
+                       }
+
+                       // If the pane meets the search criteria
+                       if (pane_matches && !enable_all) {
+                               // Expand and enable the pane and his ancestors (typically just
+                               // the parent)
+                               QTreeWidgetItem * item = tree_item;
+                               do {
+                                       item->setExpanded(true);
+                                       setTreeItemStatus(item, true);
+                                       item = item->parent();
+                               } while (item);
+                       }
+               }
+
+       }
+}
 
 void PanelStack::itemSelected(QTreeWidgetItem * item, int)
 {
@@ -146,4 +359,4 @@ QSize PanelStack::sizeHint() const
 } // namespace frontend
 } // namespace lyx
 
-#include "PanelStack_moc.cpp"
+#include "moc_PanelStack.cpp"