Device GUIs: Constain window size via minimumSize/maximumSize, rather than handling resizeEvent. Add maximum button. Hide size buttons when window size is fixed

plugins/samplesource/limesdrinput/limesdrinputgui.cpp

@@ -20,7 +20,6 @@
 #include <QDebug>
 #include <QMessageBox>
 #include <QFileDialog>
-#include <QResizeEvent>
 
 #include <algorithm>
 
@@ -50,7 +49,7 @@ LimeSDRInputGUI::LimeSDRInputGUI(DeviceUISet *deviceUISet, QWidget* parent) :
     m_limeSDRInput = (LimeSDRInput*) m_deviceUISet->m_deviceAPI->getSampleSource();
 
     ui->setupUi(getContents());
-    setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    sizeToContents();
     getContents()->setStyleSheet("#LimeSDRInputGUI { background-color: rgb(64, 64, 64); }");
     m_helpURL = "plugins/samplesource/limesdrinput/readme.md";
 
@@ -146,12 +145,6 @@ bool LimeSDRInputGUI::deserialize(const QByteArray& data)
     }
 }
 
-void LimeSDRInputGUI::resizeEvent(QResizeEvent* size)
-{
-    adjustSize();
-    size->accept();
-}
-
 bool LimeSDRInputGUI::handleMessage(const Message& message)
 {
     if (LimeSDRInput::MsgConfigureLimeSDR::match(message))

plugins/samplesource/limesdrinput/limesdrinputgui.h

@@ -45,9 +45,6 @@ public:
     bool deserialize(const QByteArray& data);
     virtual MessageQueue *getInputMessageQueue() { return &m_inputMessageQueue; }
 
-protected:
-    void resizeEvent(QResizeEvent* size);
-
 private:
     Ui::LimeSDRInputGUI* ui;