From 179992bbde9b16a1a1bd0c0ea6f61027cd7789f3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dag=20Henning=20Liodden=20S=C3=B8rb=C3=B8?=
 <daghenning@lioddensorbo.com>
Date: Fri, 10 Nov 2017 00:22:42 +0100
Subject: [PATCH] Add search to template chooser (see #183336)

---
 mscore/newwizard.cpp    | 14 +++++++++++-
 mscore/scoreBrowser.cpp | 49 +++++++++++++++++++++++++++++++++++++++--
 mscore/scoreBrowser.h   |  2 ++
 3 files changed, 62 insertions(+), 3 deletions(-)

diff --git a/mscore/newwizard.cpp b/mscore/newwizard.cpp
index e38084b650..f116972095 100644
--- a/mscore/newwizard.cpp
+++ b/mscore/newwizard.cpp
@@ -287,12 +287,24 @@ NewWizardPage4::NewWizardPage4(QWidget* parent)
       templateFileBrowser->setScores(fil);
       templateFileBrowser->setSizePolicy(QSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored));
 
-      QLayout* layout = new QVBoxLayout;
+      QVBoxLayout* layout = new QVBoxLayout;
+      QHBoxLayout* searchLayout = new QHBoxLayout;
+      QLineEdit* search = new QLineEdit;
+      search->setPlaceholderText(tr("Search"));
+      search->setClearButtonEnabled(true);
+      search->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
+      searchLayout->addSpacerItem(new QSpacerItem(0, 0, QSizePolicy::MinimumExpanding, QSizePolicy::Maximum));
+      searchLayout->addWidget(search);
+
+      layout->addLayout(searchLayout);
       layout->addWidget(templateFileBrowser);
       setLayout(layout);
 
       connect(templateFileBrowser, SIGNAL(scoreSelected(const QString&)), SLOT(templateChanged(const QString&)));
       connect(templateFileBrowser, SIGNAL(scoreActivated(const QString&)), SLOT(fileAccepted(const QString&)));
+      connect(search, &QLineEdit::textChanged, [this] (const QString& searchString) {
+            this->templateFileBrowser->filter(searchString);
+            });
       }
 
 //---------------------------------------------------------
diff --git a/mscore/scoreBrowser.cpp b/mscore/scoreBrowser.cpp
index 9c00ae3780..b7d1415f23 100644
--- a/mscore/scoreBrowser.cpp
+++ b/mscore/scoreBrowser.cpp
@@ -24,7 +24,12 @@ namespace Ms {
 QSize ScoreListWidget::sizeHint() const
       {
       int cols = (width()-SPACE) / (CELLW + SPACE);
-      int n    = count();
+      int n = 0;
+      for (int i = 0; i < count(); ++i) {
+            if (!item(i)->isHidden())
+                  n++;
+            }
+
       int rows = 1;
       if (cols > 0)
             rows = (n+cols-1) / cols;
@@ -57,6 +62,9 @@ ScoreBrowser::ScoreBrowser(QWidget* parent)
       scoreList->setLayout(new QVBoxLayout);
       scoreList->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
       scoreList->layout()->setMargin(0);
+      _noMatchedScoresLabel = new QLabel(tr("There are no templates matching the current search."));
+      _noMatchedScoresLabel->setHidden(true);
+      scoreList->layout()->addWidget(_noMatchedScoresLabel);
       connect(preview, SIGNAL(doubleClicked(QString)), SIGNAL(scoreActivated(QString)));
       if (!_showPreview)
             preview->setVisible(false);
@@ -263,7 +271,44 @@ void ScoreBrowser::selectLast()
       ScoreItem* item = static_cast<ScoreItem*>(w->item(w->count()-1));
       w->setCurrentItem(item);
       preview->setScore(item->info());
-      }
+}
+
+//---------------------------------------------------------
+//   filter
+//      filter which scores are visible based on searchString
+//---------------------------------------------------------
+void ScoreBrowser::filter(const QString &searchString)
+{
+      int numCategoriesWithMathingScores = 0;
+
+      for (ScoreListWidget* list : scoreLists) {
+            int numMatchedScores = 0;
+
+            for (int i = 0; i < list->count(); ++i) {
+                  ScoreItem* score = static_cast<ScoreItem*>(list->item(i));
+                  QString title = score->text();
+                  bool isMatch = title.contains(searchString, Qt::CaseInsensitive);
+
+                  score->setHidden(!isMatch);
+
+                  if (isMatch)
+                        numMatchedScores++;
+                  }
+
+            int listindex = scoreList->layout()->indexOf(list);
+            QLayoutItem *label = scoreList->layout()->itemAt(listindex - 1);
+            if (label && label->widget()) {
+                  label->widget()->setHidden(numMatchedScores == 0);
+                  }
+
+            list->setHidden(numMatchedScores == 0);
+            if (numMatchedScores > 0) {
+                  numCategoriesWithMathingScores++;
+                  }
+            }
+
+      _noMatchedScoresLabel->setHidden(numCategoriesWithMathingScores > 0);
+}
 
 //---------------------------------------------------------
 //   scoreChanged
diff --git a/mscore/scoreBrowser.h b/mscore/scoreBrowser.h
index f836c241c3..eef100edcb 100644
--- a/mscore/scoreBrowser.h
+++ b/mscore/scoreBrowser.h
@@ -55,6 +55,7 @@ class ScoreBrowser : public QWidget, public Ui::ScoreBrowser
                                           //             - single click action
       bool _boldTitle     { false };      // score title are displayed in bold
       bool _showCustomCategory  { false };// show a custom category for files
+      QLabel* _noMatchedScoresLabel;      // displayed when no scores are matching the search
 
       ScoreListWidget* createScoreList();
       ScoreItem* genScoreItem(const QFileInfo&, ScoreListWidget*);
@@ -76,6 +77,7 @@ class ScoreBrowser : public QWidget, public Ui::ScoreBrowser
       void selectLast();
       void setBoldTitle(bool bold) { _boldTitle = bold; }
       void setShowCustomCategory(bool showCustomCategory) { _showCustomCategory = showCustomCategory; }
+      void filter(const QString&);
       };
 }