Various GUI logic fixes and improvements

hecl-gui/ErrorLabel.hpp

@@ -0,0 +1,22 @@
+#ifndef GUI_ERRORLABEL_HPP
+#define GUI_ERRORLABEL_HPP
+
+#include <QLabel>
+
+class ErrorLabel : public QLabel
+{
+public:
+    ErrorLabel(QWidget* parent = Q_NULLPTR) : QLabel(parent) {}
+    void setText(const QString& str, bool success = false)
+    {
+        QPalette pal = QLabel::palette();
+        if (success)
+            pal.setColor(QPalette::WindowText, QColor(0,255,0));
+        else
+            pal.setColor(QPalette::WindowText, QColor(255,47,0));
+        QLabel::setPalette(pal);
+        QLabel::setText(str);
+    }
+};
+
+#endif // GUI_ERRORLABEL_HPP