refactored progress

ui/CMakeLists.txt

@@ -36,6 +36,7 @@ set(squawkUI_SRC
   utils/image.cpp
   utils/flowlayout.cpp
   utils/badge.cpp
+  utils/progress.cpp
 )
 
 # Tell CMake to create the helloworld executable

ui/utils/messageline.cpp

@@ -31,35 +31,11 @@ MessageLine::MessageLine(bool p_room, QWidget* parent):
     palNames(),
     views(),
     room(p_room),
-    busyPixmap(new QGraphicsPixmapItem(Shared::icon("view-refresh", true).pixmap(70))),
-    busyScene(),
-    busyLabel(&busyScene),
-    busyLayout(),
     busyShown(false),
-    rotation()
+    progress()
 {
     setBackgroundRole(QPalette::Base);
     layout->addStretch();
-    
-    busyScene.addItem(busyPixmap);
-    busyLayout.addStretch();
-    busyLayout.addWidget(&busyLabel);
-    busyLayout.addStretch();
-    busyLabel.setMaximumSize(70, 70);
-    busyLabel.setMinimumSize(70, 70);
-    busyLabel.setSceneRect(0, 0, 70, 70);
-    busyLabel.setFrameStyle(0);
-    busyLabel.setContentsMargins(0, 0, 0, 0);
-    busyLabel.setInteractive(false);
-    busyPixmap->setTransformOriginPoint(35, 35);
-    busyPixmap->setTransformationMode(Qt::SmoothTransformation);
-    busyPixmap->setOffset(0, 0);;
-    
-    rotation.setDuration(500);
-    rotation.setStartValue(0.0f);
-    rotation.setEndValue(180.0f);
-    rotation.setLoopCount(-1);
-    connect(&rotation, SIGNAL(valueChanged(const QVariant&)), this, SLOT(onAnimationValueChanged(const QVariant&)));
 }
 
 MessageLine::~MessageLine()
@@ -201,28 +177,21 @@ QString MessageLine::firstMessageId() const
 void MessageLine::showBusyIndicator()
 {
     if (!busyShown)  {
-        layout->insertLayout(0, &busyLayout);
+        layout->insertWidget(0, &progress);
+        progress.start();
         busyShown = true;
-        rotation.start();
-        busyLabel.show();
     }
 }
 
 void MessageLine::hideBusyIndicator()
 {
     if (busyShown) {
-        busyLabel.hide();
-        rotation.stop();
-        layout->removeItem(&busyLayout);
+        progress.stop();
+        layout->removeWidget(&progress);
         busyShown = false;
     }
 }
 
-void MessageLine::onAnimationValueChanged(const QVariant& value)
-{
-    busyPixmap->setRotation(value.toReal());
-}
-
 void MessageLine::responseDownloadProgress(const QString& messageId, qreal progress)
 {
     Index::const_iterator itr = messageIndex.find(messageId);

ui/utils/messageline.h

@@ -25,13 +25,10 @@
 #include <QLabel>
 #include <QResizeEvent>
 #include <QIcon>
-#include <QGraphicsScene>
-#include <QGraphicsView>
-#include <QGraphicsPixmapItem>
-#include <QVariantAnimation>
 
 #include "../../global.h"
 #include "message.h"
+#include "progress.h"
 
 class MessageLine : public QWidget
 {
@@ -85,15 +82,8 @@ private:
     std::map<QString, QString> palNames;
     std::deque<QHBoxLayout*> views;
     bool room;
-    QGraphicsPixmapItem* busyPixmap;
-    QGraphicsScene busyScene;
-    QGraphicsView busyLabel;
-    QHBoxLayout busyLayout;
     bool busyShown;
-    QVariantAnimation rotation;
-    
-private slots:
-    void onAnimationValueChanged(const QVariant& value);
+    Progress progress;
 };
 
 #endif // MESSAGELINE_H

ui/utils/progress.cpp

@@ -0,0 +1,84 @@
+/*
+ * Squawk messenger. 
+ * Copyright (C) 2019 Yury Gubich <blue@macaw.me>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "progress.h"
+
+Progress::Progress(quint16 p_size, QWidget* parent):
+    QWidget(parent),
+    pixmap(new QGraphicsPixmapItem(Shared::icon("view-refresh", true).pixmap(p_size))),
+    scene(),
+    label(&scene),
+    progress(false),
+    animation(),
+    size(p_size)
+{
+    scene.addItem(pixmap);
+    label.setMaximumSize(size, size);
+    label.setMinimumSize(size, size);
+    label.setSceneRect(0, 0, size, size);
+    label.setFrameStyle(0);
+    label.setContentsMargins(0, 0, 0, 0);
+    label.setInteractive(false);
+    pixmap->setTransformOriginPoint(size / 2, size / 2);
+    pixmap->setTransformationMode(Qt::SmoothTransformation);
+    pixmap->setOffset(0, 0);;
+    
+    animation.setDuration(500);
+    animation.setStartValue(0.0f);
+    animation.setEndValue(180.0f);
+    animation.setLoopCount(-1);
+    connect(&animation, &QVariantAnimation::valueChanged, this, &Progress::onValueChanged);
+    
+    QGridLayout* layout = new QGridLayout();
+    setLayout(layout);
+    layout->setMargin(0);
+    layout->setVerticalSpacing(0);
+    layout->setHorizontalSpacing(0);
+    
+    setContentsMargins(0, 0, 0, 0);
+    
+    layout->addWidget(&label, 0, 0, 1, 1);
+    label.hide();
+}
+
+Progress::~Progress()
+{
+}
+
+void Progress::onValueChanged(const QVariant& value)
+{
+    pixmap->setRotation(value.toReal());
+}
+
+void Progress::start()
+{
+    if (!progress) {
+        label.show();
+        animation.start();
+        progress = true;
+    }
+}
+
+void Progress::stop()
+{
+    if (progress) {
+        label.hide();
+        animation.stop();
+        progress = false;
+    }
+}

ui/utils/progress.h

@@ -0,0 +1,57 @@
+/*
+ * Squawk messenger. 
+ * Copyright (C) 2019 Yury Gubich <blue@macaw.me>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef PROGRESS_H
+#define PROGRESS_H
+
+#include <QWidget>
+#include <QGraphicsScene>
+#include <QIcon>
+#include <QGraphicsView>
+#include <QGraphicsPixmapItem>
+#include <QVariantAnimation>
+#include <QGridLayout>
+
+#include "../../global.h"
+
+/**
+ * @todo write docs
+ */
+class Progress : public QWidget
+{
+    Q_OBJECT
+public:
+    Progress(quint16 p_size = 70, QWidget* parent = nullptr);
+    ~Progress();
+    
+    void start();
+    void stop();
+    
+private slots:
+    void onValueChanged(const QVariant& value);
+    
+private:
+    QGraphicsPixmapItem* pixmap;
+    QGraphicsScene scene;
+    QGraphicsView label;
+    bool progress;
+    QVariantAnimation animation;
+    quint16 size;
+};
+
+#endif // PROGRESS_H