Add overlay visibility toggle

include/mainwindow.h

@@ -68,6 +68,9 @@ public:
     Q_INVOKABLE void setWidth(int width);
     Q_INVOKABLE void setHeight(int height);
     Q_INVOKABLE void clearOverlay(int layer = INT_MAX);
+    Q_INVOKABLE void hideOverlay(int layer = INT_MAX);
+    Q_INVOKABLE void showOverlay(int layer = INT_MAX);
+    Q_INVOKABLE void setOverlayVisibility(bool visible, int layer = INT_MAX);
     Q_INVOKABLE void addText(QString text, int x, int y, QString color = "#000000", int fontSize = 12, int layer = 0);
     Q_INVOKABLE void addRect(int x, int y, int width, int height, QString color = "#000000", int layer = 0);
     Q_INVOKABLE void addFilledRect(int x, int y, int width, int height, QString color = "#000000", int layer = 0);

include/ui/graphicsview.h

@@ -14,6 +14,7 @@ public:
     GraphicsView(QWidget *parent) : QGraphicsView(parent) {}
     Overlay * getOverlay(int layer);
     void clearOverlays();
+    void setOverlaysHidden(bool hidden);
 
 public:
 //    GraphicsView_Object object;

include/ui/overlay.h

@@ -75,6 +75,7 @@ public:
     ~Overlay() {
         this->clearItems();
     }
+    void setHidden(bool hidden);
     void renderItems(QPainter *painter);
     QList<OverlayItem*> getItems();
     void clearItems();
@@ -83,6 +84,7 @@ public:
     bool addImage(int x, int y, QString filepath, int width = -1, int height = -1, unsigned offset = 0, bool hflip = false, bool vflip = false, bool setTransparency = false);
 private:
     QList<OverlayItem*> items;
+    bool hidden;
 };
 
 #endif // OVERLAY_H

src/mainwindow_scriptapi.cpp

@@ -238,6 +238,24 @@ void MainWindow::clearOverlay(int layer) {
     this->ui->graphicsView_Map->scene()->update();
 }
 
+void MainWindow::hideOverlay(int layer) {
+    this->setOverlayVisibility(false, layer);
+}
+
+void MainWindow::showOverlay(int layer) {
+    this->setOverlayVisibility(true, layer);
+}
+
+void MainWindow::setOverlayVisibility(bool visible, int layer) {
+    if (!this->ui || !this->ui->graphicsView_Map)
+        return;
+    if (layer == INT_MAX)
+        this->ui->graphicsView_Map->setOverlaysHidden(!visible);
+    else
+        this->ui->graphicsView_Map->getOverlay(layer)->setHidden(!visible);
+    this->ui->graphicsView_Map->scene()->update();
+}
+
 void MainWindow::addText(QString text, int x, int y, QString color, int fontSize, int layer) {
     if (!this->ui || !this->ui->graphicsView_Map || layer == INT_MAX)
         return;

src/ui/graphicsview.cpp

@@ -26,6 +26,11 @@ void GraphicsView::clearOverlays() {
         overlay->clearItems();
 }
 
+void GraphicsView::setOverlaysHidden(bool hidden) {
+    foreach (Overlay * overlay, this->overlayMap)
+        overlay->setHidden(hidden);
+}
+
 Overlay * GraphicsView::getOverlay(int layer) {
     Overlay * overlay = this->overlayMap.value(layer, nullptr);
     if (!overlay) {

src/ui/overlay.cpp

@@ -23,9 +23,10 @@ void OverlayImage::render(QPainter *painter) {
 }
 
 void Overlay::renderItems(QPainter *painter) {
-    for (auto item : this->items) {
+    if (this->hidden) return;
+
+    for (auto item : this->items)
         item->render(painter);
-    }
 }
 
 void Overlay::clearItems() {
@@ -39,6 +40,10 @@ QList<OverlayItem*> Overlay::getItems() {
     return this->items;
 }
 
+void Overlay::setHidden(bool hidden) {
+    this->hidden = hidden;
+}
+
 void Overlay::addText(QString text, int x, int y, QString color, int fontSize) {
     this->items.append(new OverlayText(text, x, y, QColor(color), fontSize));
 }