From ab5d58c3d9ea908667b1d1715660911e878f20d6 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Wed, 8 Oct 2014 13:20:35 +0200
Subject: DOCS/client_api_examples: qtexample: add a log window

For the purpose of demonstration.

Also make the windows larger. I'm not exactly sure how Qt determines
the default window sizes, but here they are a bit tiny, so force them
larger.
---
 DOCS/client_api_examples/qtexample.cpp | 26 ++++++++++++++++++++++++++
 DOCS/client_api_examples/qtexample.h   |  3 +++
 2 files changed, 29 insertions(+)

(limited to 'DOCS/client_api_examples')

diff --git a/DOCS/client_api_examples/qtexample.cpp b/DOCS/client_api_examples/qtexample.cpp
index 5ebc788c64..fa657cf7b9 100644
--- a/DOCS/client_api_examples/qtexample.cpp
+++ b/DOCS/client_api_examples/qtexample.cpp
@@ -11,6 +11,7 @@
 #include <QMenu>
 #include <QGridLayout>
 #include <QApplication>
+#include <QTextEdit>
 
 #include "qtexample.h"
 
@@ -27,6 +28,9 @@ static void wakeup(void *ctx)
 MainWindow::MainWindow(QWidget *parent) :
     QMainWindow(parent)
 {
+    setWindowTitle("Qt embedding demo");
+    setMinimumSize(640, 480);
+
     QMenu *menu = menuBar()->addMenu(tr("&File"));
     QAction *on_open = new QAction(tr("&Open"), this);
     on_open->setShortcuts(QKeySequence::Open);
@@ -36,6 +40,14 @@ MainWindow::MainWindow(QWidget *parent) :
 
     statusBar();
 
+    QMainWindow *log_window = new QMainWindow(this);
+    log = new QTextEdit(log_window);
+    log->setReadOnly(true);
+    log_window->setCentralWidget(log);
+    log_window->setWindowTitle("mpv log window");
+    log_window->setMinimumSize(500, 50);
+    log_window->show();
+
     mpv = mpv_create();
     if (!mpv)
         throw "can't create mpv instance";
@@ -62,6 +74,10 @@ MainWindow::MainWindow(QWidget *parent) :
     // this property changes.
     mpv_observe_property(mpv, 0, "time-pos", MPV_FORMAT_DOUBLE);
 
+    // Request log messages with level verbose ("v") or higher.
+    // They are received as MPV_EVENT_LOG_MESSAGE.
+    mpv_request_log_messages(mpv, "v");
+
     // From this point on, the wakeup function will be called. The callback
     // can come from any thread, so we use the Qt QEvent mechanism to relay
     // the wakeup in a thread-safe way.
@@ -108,6 +124,16 @@ void MainWindow::handle_mpv_event(mpv_event *event)
         }
         break;
     }
+    case MPV_EVENT_LOG_MESSAGE: {
+        struct mpv_event_log_message *msg = (struct mpv_event_log_message *)event->data;
+        std::stringstream ss;
+        ss << "[" << msg->prefix << "] " << msg->level << ": " << msg->text;
+        QTextCursor cursor = log->textCursor();
+        cursor.movePosition(QTextCursor::End);
+        cursor.insertText(QString::fromStdString(ss.str()));
+        log->setTextCursor(cursor);
+        break;
+    }
     case MPV_EVENT_SHUTDOWN: {
         mpv_terminate_destroy(mpv);
         mpv = NULL;
diff --git a/DOCS/client_api_examples/qtexample.h b/DOCS/client_api_examples/qtexample.h
index b5b6fe7fb2..8d5ef41143 100644
--- a/DOCS/client_api_examples/qtexample.h
+++ b/DOCS/client_api_examples/qtexample.h
@@ -5,6 +5,8 @@
 
 #include <mpv/client.h>
 
+class QTextEdit;
+
 class MainWindow : public QMainWindow
 {
     Q_OBJECT
@@ -22,6 +24,7 @@ private slots:
 private:
     QWidget *mpv_container;
     mpv_handle *mpv;
+    QTextEdit *log;
 
     void create_player();
     void handle_mpv_event(mpv_event *event);
-- 
cgit v1.2.3