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1. #QT SYNC TIMER TO SECOND CLOCK HOW TO#
2. #QT SYNC TIMER TO SECOND CLOCK MOVIE#
3. #QT SYNC TIMER TO SECOND CLOCK UPDATE#
4. #QT SYNC TIMER TO SECOND CLOCK FULL#
5. #QT SYNC TIMER TO SECOND CLOCK MAC#

In the file browser, you may choose multiple files. There are two options for loading images, sequences, and movies via the file browser: you can add to the existing session by choosing File → Open (or File → Open into Layer) or you can open images in a new window by choosing File → Open In New Session. 4.3 Loading Images, Sequences, Movies and Audio 4.3.1 Using the File Browser You can toggle the visibility for each of the tool bars under the Tools menu.

#QT SYNC TIMER TO SECOND CLOCK FULL#

The full screen toggle is also under the Window menu. See Chapter 7 for more information on what these settings do. The frame content, display device settings, channel view, and stereo mode on the top tool bar are also available under the View menu. The loop mode determines what happens at the end of the timeline and the audio controls modify the volume and mute. These are similar to the heads-up play controls available from the timeline configuration. The play controls control play back in the current view. The tool launch buttons toggle rv's main user interface components like the session manager or the heads-up timeline. The lower toolbar is in three sections from left to right: tool launch buttons, play controls, and audio/loop mode. The lower toolbar control play back, has tool buttons to show more functions, and audio controls. The upper toolbar controls which view is displayed, viewing options, and current display device settings. The main RV window has two toolbars which are visible by default. RV provides feedback about its current state near the top left corner of the window.įeedback widget indicating full-color display 4.2 Main Window Tool Bars Aside from uniformity across platforms, the reason we have opted for this style of interface was primarily to make RV function well when in full screen mode. The widgets live in the image display are or are connected to the image itself. Many of the tools that RV provides are heads up widgets. On Linux it is common to have multiple separate RV processes running.

#QT SYNC TIMER TO SECOND CLOCK MAC#

On the Mac and Windows, it is common that there be only a single instance of RV running. (See Figure cap:RV-on-Linux )Ī single RV process can control multiple independent sessions on all platforms. On Linux and Windows, each RV window has its own attached menu bar. On OS X, the menu bar will appear at the top of the screen (like most native OS X applications). Each window has two main components: the viewing area-where images and movies are shown- and the menu bar. The main menu and pop-up menus allow access to most functions and provide hot keys where available. RV can have prefix-keys that when pressed remap the entire keyboard or mouse bindings or both. While its appearance is minimal, its interaction is not: almost every key on the keyboard does something and it's possible to use key-chords and prefix-keys to extend this further.Įmacs users will find this feature familiar. By default, RV starts with no visible interface other than a menu bar and the timeline, and even these can be turned off from the command line or preferences. The goal of RV's user interface is to be minimal in appearance, but complete in function.

#QT SYNC TIMER TO SECOND CLOCK MOVIE#

#QT SYNC TIMER TO SECOND CLOCK UPDATE#

This makes the colon appear and vanish every other second.įinally, we call QLCDNumber::display() to update the widget.Chapter 4 - User Interface Table of Contents When QTime::second() is a even number, the colon in the string is replaced with a space. The current time is converted into a string with the format "hh:mm". The showTime() slot is called whenever the clock display needs to be updated.

Then, we call the showTime() slot without this call, there would be a one-second delay at startup before the time is shown. We also set up a one-second timer to keep track of the current time, and we connect its timeout() signal to the private showTime() slot so that the display is updated every second. The QLCDNumber::Filled style produces raised segments filled with the foreground color (typically black).

In the constructor, we first change the look of the LCD numbers. } DigitalClock Class Implementation DigitalClock ::DigitalClock( QWidget *parent)Ĭonnect(timer, SIGNAL(timeout()), this, SLOT(showTime())) We subclass QLCDNumber and implement a private slot called showTime() to update the clock display: class DigitalClock : public QLCDNumber The DigitalClock class provides a clock widget showing the time with hours and minutes separated by a blinking colon. This example also demonstrates how QTimer can be used to update a widget at regular intervals.

#QT SYNC TIMER TO SECOND CLOCK HOW TO#

The Digital Clock example shows how to use QLCDNumber to display a number with LCD-like digits.