From 72de2dce79c76da9931e6bc80e59743526cc18fe Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 21 Aug 2023 17:35:13 +0300
Subject: [PATCH] Add an example of dialogs in the widget demo program

---
 basic.skin                         | 10 +++++
 examples/widgetdemo/dialogdemo.cpp | 71 ++++++++++++++++++++++++++++++
 examples/widgetdemo/dialogdemo.h   | 20 +++++++++
 examples/widgetdemo/widgetdemo.cpp |  2 +
 4 files changed, 103 insertions(+)
 create mode 100644 examples/widgetdemo/dialogdemo.cpp
 create mode 100644 examples/widgetdemo/dialogdemo.h

diff --git a/basic.skin b/basic.skin
index 73f60c4..5f9f0b1 100644
--- a/basic.skin
+++ b/basic.skin
@@ -404,6 +404,16 @@ style "panel"
 	part "children";
 };
 
+style "dialog"
+{
+	part
+	{
+		graphic NORMAL "grey_beveled";
+	};
+
+	part "children";
+};
+
 style "root"
 {
 	part "children";
diff --git a/examples/widgetdemo/dialogdemo.cpp b/examples/widgetdemo/dialogdemo.cpp
new file mode 100644
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());
+}
diff --git a/examples/widgetdemo/dialogdemo.h b/examples/widgetdemo/dialogdemo.h
new file mode 100644
index 0000000..4e5f770
--- /dev/null
+++ b/examples/widgetdemo/dialogdemo.h
@@ -0,0 +1,20 @@
+#ifndef DIALOGDEMO_H_
+#define DIALOGDEMO_H_
+
+#include <msp/gltk/label.h>
+#include <msp/gltk/panel.h>
+
+class DialogDemo: public Msp::GLtk::Panel
+{
+private:
+	Msp::GLtk::Label lbl_text;
+
+public:
+	DialogDemo();
+
+private:
+	void button_clicked();
+	void got_response(const std::string &);
+};
+
+#endif
diff --git a/examples/widgetdemo/widgetdemo.cpp b/examples/widgetdemo/widgetdemo.cpp
index 52545a2..b1482e7 100644
--- a/examples/widgetdemo/widgetdemo.cpp
+++ b/examples/widgetdemo/widgetdemo.cpp
@@ -1,6 +1,7 @@
 #include <msp/gl/framebuffer.h>
 #include <msp/gltk/layout.h>
 #include "buttondemo.h"
+#include "dialogdemo.h"
 #include "dropdowndemo.h"
 #include "entrydemo.h"
 #include "toggledemo.h"
@@ -25,6 +26,7 @@ WidgetDemo::WidgetDemo(int, char **):
 	root_layout.set_expand(selector, false, true);
 
 	add_demo("Button", new ButtonDemo);
+	add_demo("Dialog", new DialogDemo);
 	add_demo("Dropdown", new DropdownDemo);
 	add_demo("Entry", new EntryDemo);
 	add_demo("Toggle", new ToggleDemo);
-- 
2.43.0