Copperspice Overview: Development For Mac

GT A C Graphical User Interface Library and System Author: Anthony Daniels email:. Introduction GT is a compact, efficient, and customizable graphical user interface (GUI) library for the Windows environment (eventually Linux and Mac will be added). The majority of the code is platform independent, only relying directly on the Operating System’s graphics, threading, and clipboard APIs (these features are encapsulated).

1. Web Development For Mac
2. Game Development For Mac

Get expert help for every phase of your product development lifecycle. Tools and IDE. Here's a detailed overview of the main bricks that make Qt the fastest.

With the number of GUI systems growing, one might ask why make another system. GT was made to address shortcomings in some of the major competitors in addition to being really compact (GT currently has approx. 90,000 lines of code, or LOC, including comments). With the LOC count this low, GT is possible to embed directly into your application solution or project files.

Its major competitors are MFC, QT, GIMP Toolkit, wxWidgets, Fox Toolkit. GT most closely tracks with QT in design and function, but here are some of the differences. Comparison to Competitors First and foremost, the entire GT framework is built on top of the HPC Template Library (HTL). The HTL is a supplement to the Standard Template Library (STL) that provides thread safe objects geared towards multi-thread and multi-process programming. While GT makes use of almost the whole HTL, three of the HTL packages are relied on most heavily. These are the containers, signals and slots, and threading packages. GT uses only thread safe containers for all critical functions in the objects of the library.

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2. CopperSpice, a Modern C++ Fork of. Could run and build with the native tools on mac, linux, and windows. A CopperSpice Overview document on line to provide.

GT is also a signal and slot based system like QT. Unlike the macro based event coupling to code used in MFC and Fox Toolkit (which is not debug traceable), signals and slots provide a much cleaner means of connecting events to code. GT has a few improvements over the QT version of signals and slots. First, you can have public, protected, and private signals, whereas QT only allows protected.

Second, connection is not done with a macro like in QT. Third, there is no need for the QOBJECT meta-object and code, providing for a cleaner package (no meta-object compiler step). Fourth, any function in a GtObject can be attached to a signal of same prototype (QT’s most recent version does this as well, but the author wanted to mention it anyways); there is no declaration of “slots:” required.

Every member function is a potential slot. Another major difference is that GT does not draw native controls. If you really drill down into the code of some of the other packages (QT for example), you will find that they are drawing API native controls in most cases. This many levels of indirection to a single monolithic painter that draws all the different controls is different than the approach taken by GT. Every GtWidget has an OnPaint method and the widget is responsible for drawing itself.

Web Development For Mac

The graphics are simpler than most current generation operating systems controls, but that choice was in line with the compactness feature of GT. Users are fully encouraged to change the paint algorithms if they want a more sophisticated look. GT, like QT, has an abstract item model system available for displaying in the GUI collections of objects and their data. QT has the design philosophy that lists, tables, and trees all use the same abstract item model.

Game Development For Mac

However GT employs individual abstract item models for lists, tables, and trees. The choice to have a listmodel, tablemodel, and treemodel was made because the author believes that the code is simpler and easier to use and build on top of. This fundamental shift in abstract item model design was the reason GT was created. The author is a long time user and fan of QT. Gt Library Structure GT currently has four libraries, GtCore, GtGui, GtOpenGL, and GtChart.

GtCore contains all of the core classes for the GT system. It has the following packages; GtBase, GtEvent, GtGeometry, GtGraphic, GtInputOutput, GtItemModel, GtMath, GtProcess, GtSorting, GtStateMachine. Descriptions of these packages and their constituent classes will be in the class overview document. GtGui contains all of the classes for basic GUI development. It has the following packages; GtBasicControls, GtGridView, GtModelView, GtScientific, GtTextView, GtWinForms. GtOpenGL contains the necessary classes to allow for 3D object visualization via the OpenGL library. GtChart contains the classes required for scientific plotting and charting.

Sample GUIs The sample pack has 15 different GUI projects that illustrate the use of every type of control in GT. In order to build the sample pack, have the GT2013 and GTTEST2013 folders at the same level in the file hierarchy. Copy the libraries from the GT2013 Debug or Release folder into the target folder for the sample pack. You should now be able to build and run the sample pack. The sample applications are as follows: Name Description GtTest02Simple This application illustrates most of the basic controls of GT. GtTest03ToolBox This application illustrates the use of the toolbox Control.

GtTest04TabView This application illustrates the use of the tab view control. GtTest05ScrollArea This application illustrates the use of the scrollable area control. GtTest06Modal This application illustrates the use of modal and modeless dialogs. GtTest07ListView This application illustrates the use of the abstract item list view.

GtTest08TableView This application illustrates the use of the abstract item table view. GtTest09TreeView This application illustrates the use of the abstract item tree view. GtTest10OpenGL This application illustrates the use of the 3D viewer. GtTest11SimpleChart This application illustrates the use of the basic plot2D. GtTest12LogChart This application illustrates the use of the logarithm scales. GtTest13BarColumn This application illustrates the use of the bar and column charts.

GtTest14PieChart This application illustrates the use of the pie chart. GtTest15MultiPlot This application illustrates the use of the generic multiplot. Sample GUIs Screenshots Here are some of the sample GUI screenshots. Actually, until you had mentioned it, I had never heard of CopperSpice.

I went to their website and read. They seem to have some of the same goals as my project. However, GT is not a QT derivative. It is completely independent. So you can't take QT code and just compile it in. There are a number of differences between the two as outlined in the article.

The most of which is the abstract item model and the graphics system. In GT there are separate item models for lists, tables, and trees where QT has one item model for all three of them. The graphics system has GT objects rendering their own controls whereas in QT the rendering of the basic controls is handled by a monolithic painter. Both CopperSpice and GT don't have a MOC which is completely unnecessary. They also have similar approaches in the mutex protection of signals and slots. Thanks for making me aware of the project.

Really cool that you are considering my request. MIT requires attribution, AFAIK neither zlib nor bsd requires that. Bullet Physics is licensed under zlib: and it is widely used in commercial projects. I know that MIT is GPL-compatible, and I suspect that the other two licenses are as well. So every camp should be happy. You could of course add a static linking exception to the LGPL, but I think if you want adoption, then it would probably be a good idea to go for a developer friendly and industry-approved permissive license (instead of a copyleft license). Cheers Jacob.

If something has a solution. Why do we have to worry about? If it has no solution. For what reason do we have to worry about?

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