From 9343fc6c77da8678df98ceb6330c61f43aa48737 Mon Sep 17 00:00:00 2001
From: Arno <arno@disconnect.de>
Date: Sun, 5 Mar 2017 05:51:22 +0100
Subject: Implement expand and collapse for DB view

Sounds easy, right? It is, if you don't try to create a QIcon from a
QChar. That took me a while...

First, it's not a good idea to fill the QPixmap for the QIcon with
transparency. That gives you a random background. Fill it with palette
color instead.

Then there's QFont's pixelSize(). I have absolutely no idea how it
corresponds to the pixmap's size, but roughly double the width of the
pixmap is a good guess...
---
 playerwidget.cpp | 32 +++++++++++++++++++++++++++++---
 1 file changed, 29 insertions(+), 3 deletions(-)

(limited to 'playerwidget.cpp')

diff --git a/playerwidget.cpp b/playerwidget.cpp
index 1bd8ac6..deddfe6 100644
--- a/playerwidget.cpp
+++ b/playerwidget.cpp
@@ -15,6 +15,7 @@
 #include <QAction>
 #include <QToolBar>
 #include <QHash>
+#include <QPainter>
 #include <QApplication>
 
 #include <algorithm>
@@ -25,6 +26,7 @@
 #include "beetview.h"
 #include "indexerdialog.h"
 #include "globals.h"
+#include "helper.h"
 
 PlayerWidget::PlayerWidget(QWidget *parent) : QWidget(parent){
     setupGui();
@@ -203,6 +205,10 @@ void PlayerWidget::createActions(){
     connect(addToPlayListA, SIGNAL(triggered()), this, SLOT(addToPlayList()));
     QAction *addToPlayListAndClearA = new QAction(QIcon(":/belly_right_and_clear.png"), tr("Clear and add"), this);
     connect(addToPlayListAndClearA, SIGNAL(triggered()), this, SLOT(addToPlayListAndClear()));
+    QAction *expandA = new QAction(Helper::iconFromQChar(QChar(0x2640), 90), tr("Expand"), this);
+    connect(expandA, SIGNAL(triggered()), this, SLOT(expand()));
+    QAction *collapseAllA = new QAction(Helper::iconFromQChar(QChar(0x2642), 120), tr("Collapse all"), this);
+    connect(collapseAllA, SIGNAL(triggered()), mView, SLOT(collapseAll()));
     QAction *removeFromPlayListA = new QAction(QIcon(":/belly_left.png"), tr("Remove from playlist"), this);
     connect(removeFromPlayListA, SIGNAL(triggered()), this, SLOT(removeFromPlayList()));
     QAction *clearPlayListA = new QAction(QIcon(":/delete.png"), tr("Clear Playlist"), this);
@@ -219,9 +225,10 @@ void PlayerWidget::createActions(){
     QAction *configA = Globals::instance()->action(Globals::ConfigAction);
     mView->addAction(addToPlayListA);
     mView->addAction(addToPlayListAndClearA);
-    QAction *mViewAS1 = new QAction(this);
-    mViewAS1->setSeparator(true);
-    mView->addAction(mViewAS1);
+    mView->addAction(Helper::createSeparator(this));
+    mView->addAction(expandA);
+    mView->addAction(collapseAllA);
+    mView->addAction(Helper::createSeparator(this));
     mView->addAction(randomPlayA);
     mPlayListView->addAction(removeFromPlayListA);
     mPlayListView->addAction(shufflePlayistA);
@@ -720,3 +727,22 @@ void PlayerWidget::continuePlaying(QMediaPlayer::State state){
         next();
     }
 }
+
+void PlayerWidget::expand(){
+    QModelIndexList sel = mView->selectionModel()->selectedRows();
+    foreach(QModelIndex i, sel){
+        mView->expand(i);
+        expandRecursive(i);
+    }
+}
+
+void PlayerWidget::expandRecursive(const QModelIndex &idx){
+    const QStandardItemModel *model = static_cast<const QStandardItemModel*>(idx.model());
+    QStandardItem *item = model->itemFromIndex(idx);
+    for(int i = 0; i < item->rowCount(); ++i){
+        QModelIndex cur = model->indexFromItem(item->child(i, 0));
+        if(cur.isValid()){
+            mView->expand(cur);
+        }
+    }
+}
-- 
cgit v1.2.3-70-g09d2