Add an example of dialogs in the widget demo program

[libs/gltk.git] / examples / widgetdemo / dialogdemo.cpp

diff --git a/examples/widgetdemo/dialogdemo.cpp b/examples/widgetdemo/dialogdemo.cpp
new file mode 100644 (file)
index 0000000..63fb68e
--- /dev/null
+++ b/examples/widgetdemo/dialogdemo.cpp
@@ -0,0 +1,71 @@
+#include <msp/gltk/button.h>
+#include <msp/gltk/dialog.h>
+#include <msp/gltk/entry.h>
+#include <msp/gltk/root.h>
+#include "dialogdemo.h"
+
+using namespace std;
+using namespace Msp;
+
+class PromptDialog: public GLtk::Dialog
+{
+public:
+       sigc::signal<void, string> signal_text_response;
+
+private:
+       GLtk::Entry ent_text;
+
+public:
+       PromptDialog();
+
+protected:
+       void on_response(int) override;
+};
+
+
+DialogDemo::DialogDemo()
+{
+       get_or_create_layout();
+
+       GLtk::Button *btn_prompt = new GLtk::Button("Enter some text");
+       add(*btn_prompt);
+       btn_prompt->signal_clicked.connect(sigc::mem_fun(this, &DialogDemo::button_clicked));
+
+       add(lbl_text);
+       layout->add_constraint(lbl_text, GLtk::Layout::BELOW, *btn_prompt);
+       layout->set_expand(lbl_text, true, false);
+}
+
+void DialogDemo::button_clicked()
+{
+       GLtk::Root *root = find_ancestor<GLtk::Root>();
+       PromptDialog *dialog = GLtk::AutoDialog<PromptDialog>::create();
+       root->add(*dialog);
+       root->get_or_create_layout().set_gravity(*dialog, 0, 0);
+       dialog->signal_text_response.connect(sigc::mem_fun(this, &DialogDemo::got_response));
+}
+
+void DialogDemo::got_response(const string &text)
+{
+       lbl_text.set_text(text);
+}
+
+
+PromptDialog::PromptDialog()
+{
+       get_or_create_layout();
+
+       ent_text.set_edit_size(50, 1);
+       add(ent_text);
+       layout->set_expand(ent_text, true, false);
+
+       GLtk::Button *btn_ok = new GLtk::Button("OK");
+       add_button(*btn_ok, 1);
+       layout->add_constraint(*btn_ok, GLtk::Layout::FAR_BELOW, ent_text);
+       layout->set_gravity(*btn_ok, 1, -1);
+}
+
+void PromptDialog::on_response(int)
+{
+       signal_text_response.emit(ent_text.get_text());
+}