textbox: 'editable' property

src/frontend/gui/controls.cpp

@@ -388,7 +388,7 @@ void TextBox::draw(const GfxContext* pctx, Assets* assets) {
     lcoord.y -= 2;
     auto batch = pctx->getBatch2D();
     batch->texture(nullptr);
-    if (int((Window::time() - caretLastMove) * 2) % 2 == 0) {
+    if (editable && int((Window::time() - caretLastMove) * 2) % 2 == 0) {
         uint line = label->getLineByTextIndex(caret);
         uint lcaret = caret - label->getTextLineOffset(line);
         batch->setColor(glm::vec4(1.0f));
@@ -426,7 +426,7 @@ void TextBox::drawBackground(const GfxContext* pctx, Assets* assets) {
     batch->texture(nullptr);
 
     if (valid) {
-        if (isFocused()) {
+        if (isFocused() && !multiline) {
             batch->setColor(focusedColor);
         } else if (hover && !multiline) {
             batch->setColor(hoverColor);
@@ -442,6 +442,17 @@ void TextBox::drawBackground(const GfxContext* pctx, Assets* assets) {
         input = supplier();
     }
 
+    if (isFocused() && multiline) {
+        batch->setColor(glm::vec4(1, 1, 1, 0.1f));
+        glm::vec2 lcoord = label->calcCoord();
+        lcoord.y -= 4;
+        uint line = label->getLineByTextIndex(caret);
+        int lineY = label->getLineYOffset(line);
+        int lineHeight = font->getLineHeight() * label->getLineInterval();
+        batch->rect(lcoord.x, lcoord.y+lineY, label->getSize().x, 1);
+        batch->rect(lcoord.x, lcoord.y+lineY+lineHeight, label->getSize().x, 1);
+    }
+
     label->setColor(glm::vec4(input.empty() ? 0.5f : 1.0f));
     label->setText(getText());
     if (multiline && font) {
@@ -465,8 +476,8 @@ void TextBox::paste(const std::wstring& text) {
         auto left = input.substr(0, caret);
         auto right = input.substr(caret);
         input = left + text + right;
-        input.erase(std::remove(input.begin(), input.end(), '\r'), input.end());
     }
+    input.erase(std::remove(input.begin(), input.end(), '\r'), input.end());
     // refresh label lines configuration for correct setCaret work
     label->setText(input);
     
@@ -560,6 +571,14 @@ bool TextBox::isMultiline() const {
     return multiline;
 }
 
+void TextBox::setEditable(bool editable) {
+    this->editable = editable;
+}
+
+bool TextBox::isEditable() const {
+    return editable;
+}
+
 void TextBox::setOnEditStart(runnable oneditstart) {
     onEditStart = oneditstart;
 }
@@ -621,9 +640,7 @@ void TextBox::resetMaxLocalCaret() {
     maxLocalCaret = caret - label->getTextLineOffset(label->getLineByTextIndex(caret));
 }
 
-
-// TODO: refactor
-void TextBox::keyPressed(keycode key) {
+void TextBox::performEditingKeyboardEvents(keycode key) {
     bool shiftPressed = Events::pressed(keycode::LEFT_SHIFT);
     bool breakSelection = getSelectionLength() != 0 && !shiftPressed;
     uint previousCaret = caret;
@@ -726,6 +743,12 @@ void TextBox::keyPressed(keycode key) {
             resetSelection();
         }
     }
+}
+
+void TextBox::keyPressed(keycode key) {
+    if (editable) {
+        performEditingKeyboardEvents(key);
+    }
     if (Events::pressed(keycode::LEFT_CONTROL)) {
         // Copy selected text to clipboard
         if (key == keycode::C || key == keycode::X) {
@@ -733,12 +756,12 @@ void TextBox::keyPressed(keycode key) {
             if (!text.empty()) {
                 Window::setClipboardText(text.c_str());
             }
-            if (key == keycode::X) {
+            if (editable && key == keycode::X) {
                 eraseSelected();
             }
         }
         // Paste text from clipboard
-        if (key == keycode::V) {
+        if (key == keycode::V && editable) {
             const char* text = Window::getClipboardText();
             if (text) {
                 paste(util::str2wstr_utf8(text));