Add date onlyBackward limit.

src/DateSelectDialog.cpp

@@ -4,6 +4,8 @@
 
 #include "DateSelectDialog.h"
 #include <QVBoxLayout>
+#include <QLabel>
+#include <QDate>
 #include "components/DateSlidePickerBox.h"
 DateSelectDialog::DateSelectDialog(QWidget *parent, Qt::WindowFlags f) : GUIFormBaseDialog(parent, f) {
     this->setFixedSize(460, 380);
@@ -11,7 +13,12 @@ DateSelectDialog::DateSelectDialog(QWidget *parent, Qt::WindowFlags f) : GUIForm
     box = new DateSlidePickerBox(formWidget);
     box->setObjectName("slider_one");
     box->setSelectedValue("1990-01-01");
+    lbl_error = new QLabel(this);
+    lbl_error->setObjectName("warn");
+    lbl_error->setVisible(false);
+    lbl_error->setText(tr("Date exceeded!"));
     layout->addWidget(box);
+    layout->addWidget(lbl_error);
 }
 
 DateSelectDialog::~DateSelectDialog() {
@@ -19,6 +26,7 @@ DateSelectDialog::~DateSelectDialog() {
 }
 
 QString DateSelectDialog::getSelectedValue() {
+
     return box->getSelectedValue();
 }
 
@@ -28,6 +36,13 @@ void DateSelectDialog::setSelectedValue(const QString &val) {
 }
 
 bool DateSelectDialog::updateReferenceData() {
+    if (onlyBackward){
+        QDate v = QDate::fromString(box->getSelectedValue(),"yyyy-MM-dd");
+        bool flag =  QDate::currentDate()>=v;
+        this->setFixedHeight(flag? 380:410);
+        lbl_error->setVisible(!flag);
+        return flag;
+    }
     return true;
 }
 

src/DateSelectDialog.h

@@ -7,6 +7,7 @@
 
 #include "dialogs/GUIFormBaseDialog.h"
 class DateSlidePickerBox;
+class QLabel;
 class DateSelectDialog:public  GUIFormBaseDialog{
     Q_OBJECT
 public:
@@ -15,9 +16,14 @@ public:
     QString getSelectedValue();
     void setSelectedValue(const QString& val);
     void showEvent(QShowEvent *) override;
+    void setOnlyBackward(bool val){
+        onlyBackward = val;
+    }
 protected:
     bool updateReferenceData() override;
     DateSlidePickerBox* box;
+    QLabel* lbl_error = nullptr;
+    bool onlyBackward = true;
 };