Welcome: Push in the buttons depending on which page is selected

Applications/Welcome/Makefile

@@ -1,7 +1,8 @@
 OBJS = \
     main.o \
     TextWidget.o \
-	BackgroundWidget.o
+	BackgroundWidget.o \
+	UnuncheckableButton.o
 
 PROGRAM = Welcome
 

Applications/Welcome/UnuncheckableButton.cpp

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "UnuncheckableButton.h"
+#include <LibGUI/Painter.h>
+#include <LibGfx/Color.h>
+#include <LibGfx/Palette.h>
+
+UnuncheckableButton::UnuncheckableButton(GUI::Widget* parent)
+    : GUI::Button(parent)
+{
+}
+
+UnuncheckableButton::~UnuncheckableButton()
+{
+}

Applications/Welcome/UnuncheckableButton.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <LibGUI/Button.h>
+
+class UnuncheckableButton : public GUI::Button {
+    C_OBJECT(UnuncheckableButton)
+public:
+    explicit UnuncheckableButton(GUI::Widget* parent = nullptr);
+    virtual ~UnuncheckableButton() override;
+
+    virtual bool is_uncheckable() const override { return false; }
+};

Applications/Welcome/main.cpp

@@ -37,6 +37,7 @@
 
 #include "BackgroundWidget.h"
 #include "TextWidget.h"
+#include "UnuncheckableButton.h"
 
 struct ContentPage {
     String menu_name;
@@ -132,6 +133,7 @@ int main(int argc, char** argv)
     auto stack = GUI::StackWidget::construct(main_section);
     stack->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fill);
 
+    bool first = true;
     for (auto& page : pages) {
         auto content = GUI::Widget::construct(stack.ptr());
         content->set_layout(make<GUI::VerticalBoxLayout>());
@@ -155,16 +157,24 @@ int main(int argc, char** argv)
             content_text->wrap_and_set_height();
         }
 
-        auto menu_option = GUI::Button::construct(menu);
+        auto menu_option = UnuncheckableButton::construct(menu);
         menu_option->set_font(Gfx::Font::default_font());
         menu_option->set_text(page.menu_name);
         menu_option->set_text_alignment(Gfx::TextAlignment::CenterLeft);
         menu_option->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
         menu_option->set_preferred_size(0, 20);
+        menu_option->set_checkable(true);
+        menu_option->set_exclusive(true);
+
+        if (first)
+            menu_option->set_checked(true);
+
         menu_option->on_click = [content = content.ptr(), &stack](auto&) {
             stack->set_active_widget(content);
             content->invalidate_layout();
         };
+
+        first = false;
     }
 
     window->show();