The Amazing ProgressBar Control(转)
好久没写博客了,今天就先转一篇,随后可以再写些~~~
直接把原文粘过来,就不再进行翻译和个人说明了,因为效果很COOL~
The Amazing ProgressBar Control
A progress bar which displays progress as passage through a simple maze.
- Download AmazingProgressBar_111_Demo.zip
- Download AmazingProgressBar_111_Library.zip
- Download AmazingProgressBar_111_Source.zip
Introduction
This is release 1.1.1 of the library. The .csproj files were converted for use in Visual Studio 2013, and the help files were updated to work with the latest release of Sandcastle Help File Builder (2014.5.31.0).
The AmazingProgressBar
class is a drop-in replacement for the .NET 2.0 ProgressBar
control, which displays progress as passage through a simple maze.
All public
and protected
classes, methods, and properties are fully documented using standard C# XML documentation comments. The project includes an HTML help file. Refer to the Overview section in the help file for more details on using the class.
The library download includes:
AmazingProgressBar.dll | Class library |
AmazingProgressBar.chm | Help file |
The demo download includes the above files, as well as:
AmazingExplorer.exe | Sample program for experimenting with the various properties of the control. |
AmazingExamples.exe | Sample program displaying a variety of AmazingProgressBar examples. |
The source download includes the source for all of the above programs, as well as the necessary files for building the help file.
Compatibility with Other .NET Framework Versions
The AmazingProgressBar library is compiled using .NET Framework version 2.0. To confirm that there were no issues with other framework versions, the compiled library was used by an application which was compiled, in turn, under .NET Framework versions 3.0, 3.5, 4.0, and 4.5. The AmazingProgressBar functioned properly with all of them.
Background
One day, while waiting for a long computational task to complete, I realized just how uninteresting the standard progress bar is. There had to be something more entertaining than a colored bar creeping slowly across the screen. After thinking about the problem for a while, I hit upon the idea of a progress bar which winds through a maze. And hence was born, the AmazingProgressBar
control.
The AmazingProgressBar
is pure eye candy. It won't make the task run any faster, but it might make the wait a bit less boring!
Using the Code
To use the AmazingProgressBar
class, simply add it on an existing form:
AmazingProgressBar amaze = new AmazingProgressBar(); amaze.Location = new System.Drawing.Point(0, 0); amaze.Size = new System.Drawing.Size(200, 50); form.Controls.Add(amaze);
You can also replace any existing ProgressBar
with AmazingProgressBar
.
The progress direction and general style of the maze is determined by the MazeStyle
property:
SingleRight |
Maze with a single path progressing left to right. |
SingleLeft |
Maze with a single path progressing right to left. |
SingleUp |
Maze with a single path progressing up. |
SingleDown |
Maze with a single path progressing down. |
SplitConvergeHorizontal |
Maze with two paths starting at the left and right ends, converging in the middle. |
SplitConvergeVertical |
Maze with two paths starting at the top and bottom, converging in the middle. |
SplitDivergeHorizontal |
Maze with two paths starting in the middle, ending at the left and right ends. |
SplitDivergeVertical |
Maze with two paths starting in the middle, ending at the top and bottom. |
The mazes generally have one route over which they can be traversed, but a small amount of branching may occur if RowCount
is greater than 3. The maze direction(s) is/are the general direction(s), though there will always be twists and turns and some doubling back.
The size and complexity of the maze generally depends on the RowCount
parameter. Set this parameter to fix the number of rows in the maze. A value of 1 results in a maze which looks just like a standard progress bar. A value of 2 results in a distinctly uninteresting maze. A value of 3 or more is strongly recommended.
The number of columns in the maze is the largest value given the size of the control, the current values of RowCount
, WallSize
, and BorderSize
, and the rule that all cells in the maze must be square.
The ProgressBar.Style
property can still be set. The Marquee
style works as expected, but if the maze length is excessive, it may not work as fast as expected. The Blocks
style is generally not as visually appealing as Continuous
, though an interesting effect is to be had combining Blocks
with a zero WallSize
.
The following code segment shows how to set the Style
, MazeStyle
, and the number of rows.
// Assumes "AmazingProgressBar amaze" already declared and initialized amaze.Style = ProgressBarStyle.Continous; amaze.MazeStyle = MazeStyleType.SingleLeft; amaze.RowCount = 4;
If the control cannot generate a maze, then the control is filled with a pink - on - black ripple pattern. This is usually the result of RowCount
being too high or too low.
The filled cells inside the maze can either all be the same fixed color, or follow a color gradient. This is determined by the Gradient
property:
None |
No gradient coloring. All filled cells are ForeColor . |
Rows |
Each row in the maze is a different color, spanning a gradient with the first row being GradientStartColor , and the last row being GradientEndColor . |
Columns |
Each column in the maze is a different color, spanning a gradient with the first column being GradientStartColor , and the last column being GradientEndColor . |
Flow |
Each cell in the maze is a different color, spanning a gradient with the first cell being GradientStartColor , and the last cell being GradientEndColor . |
All unfilled cells are always BackColor
.
The maze walls are visible if WallSize
is greater than zero. The walls can only be one fixed color, as indicated by the WallColor
property.
The maze border can either be one fixed color, or a gradient from that fixed color to the default control color. The maze border can also have round corners.
The following code segment shows how to set the various color properties.
// Assumes "AmazingProgressBar amaze" already declared and initialized amaze.Gradient = GradientType.Rows; amaze.GradientStartColor = Color.LightBlue; amaze.GradientEndColor = Color.DarkBlue; amaze.BorderSize = 2; amaze.BorderColor = Color.LightGreen; amaze.BorderGradient = false; amaze.BorderRoundCorners = true; amaze.BackColor = Color.White;
How the Maze is Generated
There are many ways to generate a maze. This control required an algorithm to generate a maze which flowed in a particular direction with minimal branching, and to do so quickly and with limited memory overhead.
The SimpleMap
class does the job. It is a static class for generating mazes with but one route in a specified direction. It works well most of the time, but for values of RowCount
greater than 3, it occasionally does miss some cells, resulting in branches in the maze.
Following are the instructions for generating a single path maze. The directions used - forward, backward, and sideways - depend on the direction
parameter. For example, if direction
is Dir.E
, then forward is East, backward is West, and sideways is North or South.
Start at one of the most backward corner cells. Repeatedly follow these rules (in order) to determine the next cell. Stop when all directions are blocked.
- If only one direction is possible, go in that direction.
- If you can go backwards, go that direction.
- If there is only one empty cell in a sideways direction, go in that direction.
- If there is more than one empty cell in both of the sideways directions, randomly pick one of those directions.
- Pick a random direction from the ones available; but you are only allowed to go forward if:
- at a sideways edge, and
- more than two steps from the forward most end, and
- back most filled column is not more than three steps backward.
Rules #2 and #5 are there to ensure that the maze does not get too far ahead before winding back.
Once a cell is reached where all the directions are blocked, the above rules no longer work. At this point, for each unused cell: randomly pick one direction and make the direction passable. This will result in branches within the maze, but it ensures that there are no skipped or unused cells.
History
- September 7, 2014 - Release 1.1.1
- Converted .csproj files to Visual Studio 2013 format.
- Converted help files to work with SandCastle Help File Builder 2014.5.31.0.
- May 3, 2011 - Release 1.1
- Added
Split...
maze styles. - Added
AmazingProgressBar.BorderRoundCorners
member.
- Added
- April 17, 2011 - First release
License
This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)
About the Author
Canada
![Canada](http://www.codeproject.com/script/Geo/Images/CA.gif)
感谢原作者的无私分享~~~
作者:Cosmic_Spy
出处:http://www.cnblogs.com/Interkey/
有兴趣可以加群【.NET破解|反编译】请注明:博客园,谢谢~
本文版权归作者和博客园共有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,否则肯定是你抄我的。
posted on 2014-09-10 20:03 Cosmic_Spy 阅读(780) 评论(0) 编辑 收藏 举报