minor refactor

src/frontend/gui/controls.cpp

@@ -514,10 +514,7 @@ void TextBox::keyPressed(int key) {
         // Select/deselect all
         if (key == keycode::A) {
             if (selectionStart == selectionEnd) {
-                selectionStart = 0;
+                select(0, input.length());
-                selectionEnd = input.length();
-                selectionOrigin = 0;
-                setCaret(selectionEnd);
             } else {
                 resetSelection();
             }
@@ -525,6 +522,19 @@ void TextBox::keyPressed(int key) {
     }
 }
 
+void TextBox::select(int start, int end) {
+    if (end < start) {
+        std::swap(start, end);
+    }
+    start = normalizeIndex(start);
+    end = normalizeIndex(end);
+
+    selectionStart = start;
+    selectionEnd = end;
+    selectionOrigin = start;
+    setCaret(selectionEnd);
+}
+
 std::shared_ptr<UINode> TextBox::getAt(glm::vec2 pos, std::shared_ptr<UINode> self) {
     return UINode::getAt(pos, self);
 }

src/frontend/gui/controls.h

@@ -157,6 +157,7 @@ namespace gui {
         virtual std::wstring getSelection() const;
         virtual uint getCaret() const;
         virtual void setCaret(uint position);
+        virtual void select(int start, int end);
         virtual bool validate();
         virtual void setValid(bool valid);
         virtual bool isValid() const;