Rework how widget ownership works in Container

[libs/gltk.git] / examples / helloworld.cpp

diff --git a/examples/helloworld.cpp b/examples/helloworld.cpp
index 4f85964d9d2c45e28aa90bae843237d92d657d47..8c530df5dc560ea54ce85158a541d5a7a9f9ccdd 100644 (file)
--- a/examples/helloworld.cpp
+++ b/examples/helloworld.cpp
@@ -6,7 +6,9 @@ Demonstrates some of the most common widget types.
 #include <msp/core/application.h>
 #include <msp/graphics/simplewindow.h>
 #include <msp/gl/blend.h>
+#include <msp/gl/device.h>
 #include <msp/gl/matrix.h>
+#include <msp/gl/windowview.h>
 #include <msp/gltk/button.h>
 #include <msp/gltk/entry.h>
 #include <msp/gltk/label.h>
@@ -20,8 +22,10 @@ using namespace Msp;
 class HelloWorld: public Msp::RegisteredApplication<HelloWorld>
 {
 private:
-       // An OpenGL window to display our widgets in
-       Graphics::SimpleGLWindow wnd;
+       // A window and graphics device to display our widgets in
+       Graphics::SimpleWindow wnd;
+       GL::Device gl_dev;
+       GL::WindowView view;
 
        // GLtk resources and widgets
        GLtk::Resources res;
@@ -39,6 +43,8 @@ private:
 
 HelloWorld::HelloWorld(int, char **):
        wnd(200, 200),
+       gl_dev(wnd),
+       view(wnd),
        // Load resources.  This must be done before the root widget is created.
        res("basic.skin"),
        // A Root receives input from a Graphics::Window and passes it on
@@ -57,28 +63,30 @@ HelloWorld::HelloWorld(int, char **):
 
        GLtk::Label *lbl;
        // Prompts can be displayed with Labels
-       panel->add(*(lbl = new GLtk::Label("Type your name below:")));
+       panel->add(*(lbl = new GLtk::Label("Type your name:")));
        lbl->set_geometry(GLtk::Geometry(10, 130, 140, 20));
 
        // The user can type text into an Entry
        panel->add(*(ent_name = new GLtk::Entry));
-       ent_name->set_geometry(GLtk::Geometry(10, 110, 140, 20));
+       ent_name->set_geometry(GLtk::Geometry(10, 100, 140, 27));
 
        GLtk::Button *btn;
        // Buttons can be wired to cause things to happen
        panel->add(*(btn = new GLtk::Button("Hello")));
-       btn->set_geometry(GLtk::Geometry(10, 85, 140, 20));
+       btn->set_geometry(GLtk::Geometry(10, 68, 140, 27));
        btn->signal_clicked.connect(sigc::mem_fun(this, &HelloWorld::show_hello));
 
        // Another label for displaying some information
        panel->add(*(lbl_hello = new GLtk::Label));
-       lbl_hello->set_geometry(GLtk::Geometry(10, 65, 140, 20));
+       lbl_hello->set_geometry(GLtk::Geometry(10, 42, 140, 20));
 
        // The user might want to exit the program (*gasp*)
        panel->add(*(btn = new GLtk::Button("Exit")));
-       btn->set_geometry(GLtk::Geometry(50, 10, 100, 20));
+       btn->set_geometry(GLtk::Geometry(50, 10, 100, 27));
        btn->signal_clicked.connect(sigc::bind(sigc::mem_fun(this, &HelloWorld::exit), 0));
 
+       view.set_content(&root);
+
        // Done with setting things up, show the window!
        wnd.show();
 }
@@ -87,17 +95,7 @@ HelloWorld::HelloWorld(int, char **):
 void HelloWorld::tick()
 {
        wnd.tick();
-
-       // Set up an orthogonal projection matching the root widget
-       GL::MatrixStack::projection() = GL::Matrix::ortho_bottomleft(200, 200);
-       GL::MatrixStack::modelview() = GL::Matrix();
-
-       // Font rendering requires blending
-       GL::Bind bind_blend(GL::Blend::alpha());
-
-       root.render();
-
-       wnd.swap_buffers();
+       view.render();
 }
 
 // Displays a greeting to the user