实例介绍
【实例简介】
一个用于学习五线谱的小软件。
五线谱学习软件，用于钢琴初学者对五线谱的记忆。
shengtao.guo@qq.com
【实例截图】
【核心代码】
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
/*
本源代码版权归郭胜涛所有，仅限于学习交流，切勿用于商业用途，
该程序中所涉及的媒体资源文件均来源于互联网，本软件作者不承担相应的法律责任！
任何疑问请联系 shengtao.guo@qq.com
*/
namespace Study
{
public partial class FormMain : Form
{
public FormMain()
{
InitializeComponent();
double delt = 6;
lowNotes.Clear();
lowNotes.Add(new Note( NoteName.C, AddLineType.adddown2));
lowNotes.Add(new Note( NoteName.D, AddLineType.adddown2));
lowNotes.Add(new Note( NoteName.E, AddLineType.adddown1));
lowNotes.Add(new Note( NoteName.F));
lowNotes.Add(new Note( NoteName.G));
lowNotes.Add(new Note(NoteName.A));
lowNotes.Add(new Note( NoteName.B));
lowNotes.Add(new Note( NoteName.C));
lowNotes.Add(new Note( NoteName.D));
lowNotes.Add(new Note( NoteName.E));
lowNotes.Add(new Note( NoteName.F));
lowNotes.Add(new Note( NoteName.G));
lowNotes.Add(new Note( NoteName.A));
lowNotes.Add(new Note( NoteName.B));
lowNotes.Add(new Note( NoteName.C, AddLineType.addup1));
lowNotes.Add(new Note( NoteName.D, AddLineType.addup2));
lowNotes.Add(new Note(NoteName.E, AddLineType.addup2));
for (int i = 0; i < lowNotes.Count; i )
lowNotes[i].YPosition = 270 - (i * delt);
upNotes.Clear();
upNotes.Add(new Note( NoteName.A, AddLineType.adddown2));
upNotes.Add(new Note(NoteName.B, AddLineType.adddown2));
upNotes.Add(new Note(NoteName.C, AddLineType.adddown1));
upNotes.Add(new Note( NoteName.D));
upNotes.Add(new Note( NoteName.E));
upNotes.Add(new Note( NoteName.F));
upNotes.Add(new Note( NoteName.G));
upNotes.Add(new Note( NoteName.A));
upNotes.Add(new Note( NoteName.B));
upNotes.Add(new Note(NoteName.C));
upNotes.Add(new Note(NoteName.D));
upNotes.Add(new Note(NoteName.E));
upNotes.Add(new Note(NoteName.F));
upNotes.Add(new Note(NoteName.G));
upNotes.Add(new Note(NoteName.A, AddLineType.addup1));
upNotes.Add(new Note(NoteName.B, AddLineType.addup2));
upNotes.Add(new Note(NoteName.C, AddLineType.addup2));
for (int i = 0; i < upNotes.Count; i )
upNotes[i].YPosition = 140 - (i * delt);
randon = new Random(lowNotes.Count);
}
private IList<Note> lowNotes = new List<Note>();
private IList<Note> upNotes = new List<Note>();
private Pen defaultLinePen = new Pen(Color.Black, 1);
private Random randon = null;
private Note currentNode;
private void drawLowNode(Graphics g)
{
int ind = randon.Next(lowNotes.Count);
currentNode = lowNotes[ind];
float y = (float)currentNode.YPosition - 1;
float x = 120;
g.DrawImage(Properties.Resources.note,
new PointF(x, y
- (Properties.Resources.note.Height / 2)));
if (currentNode.addLineType == AddLineType.addup2)
{
g.DrawLine(defaultLinePen, new PointF(x - 10, 186),
new PointF(x 30, 186));
g.DrawLine(defaultLinePen, new PointF(x - 10, 174),
new PointF(x 30, 174));
}
if (currentNode.addLineType == AddLineType.addup1)
{
g.DrawLine(defaultLinePen, new PointF(x - 10, 186),
new PointF(x 30, 186));
}
if (currentNode.addLineType == AddLineType.adddown1)
{
g.DrawLine(defaultLinePen, new PointF(x - 10, 258),
new PointF(x 30, 258));
}
if (currentNode.addLineType == AddLineType.adddown2)
{
g.DrawLine(defaultLinePen, new PointF(x - 10, 258),
new PointF(x 30, 258));
g.DrawLine(defaultLinePen, new PointF(x - 10, 270),
new PointF(x 30, 270));
}
}
private void drawoUpNode(Graphics g)
{
int ind = randon.Next(lowNotes.Count);
float x = 120;
currentNode = upNotes[ind];
float y = (float)currentNode.YPosition - 1;
g.DrawImage(Properties.Resources.note,
new PointF(x, y
- (Properties.Resources.note.Height / 2)));
if (currentNode.addLineType == AddLineType.addup2)
{
g.DrawLine(defaultLinePen, new PointF(x - 10, 44),
new PointF(x 30, 44));
g.DrawLine(defaultLinePen, new PointF(x - 10, 56),
new PointF(x 30, 56));
}
if (currentNode.addLineType == AddLineType.addup1)
g.DrawLine(defaultLinePen, new PointF(x - 10, 56),
new PointF(x 30, 56));
if (currentNode.addLineType == AddLineType.adddown1)
g.DrawLine(defaultLinePen, new PointF(x - 10, 128),
new PointF(x 30, 128));
if (currentNode.addLineType == AddLineType.adddown2)
{
g.DrawLine(defaultLinePen, new PointF(x - 10, 128),
new PointF(x 30, 128));
g.DrawLine(defaultLinePen, new PointF(x - 10, 140),
new PointF(x 30, 140));
}
}
private void pictureBox1_Paint(object sender, PaintEventArgs e)
{
//draw lownote
if (radioButtonH.Checked)
drawoUpNode(e.Graphics);
if (radioButtonL.Checked)
drawLowNode(e.Graphics);
if (radioButtonHL.Checked)
{
int r = randon.Next(10);
if(r % 2 == 0)
drawLowNode(e.Graphics);
else
drawoUpNode(e.Graphics);
}
}
private int count = 0;
private int right = 0;
private int wrong = 0;
private void newNote()
{
this.pictureBox1.Refresh();
count ;
this.labelRight.Text = "正确:" right.ToString();
this.labelWrong.Text = "错误:" wrong.ToString();
this.labelCount.Text = "总数:" count.ToString();
}
private void button8_Click(object sender, EventArgs e)
{
count = 0;
right = 0;
wrong = 0;
this.pictureBox2.Image = null;
newNote();
}
private void input(NoteName baseName)
{
if (currentNode != null)
{
if (currentNode.baseName == baseName)
{
right ;
this.labelErro.Text = "";
this.pictureBox2.Image = Properties.Resources.right;
newNote();
}
else
{
wrong ;
this.pictureBox2.Image = Properties.Resources.error;
this.labelErro.Text = "应为 " currentNode.baseName.ToString();
}
}
}
private void button1_Click(object sender, EventArgs e)
{
input(NoteName.C);
}
private void button2_Click(object sender, EventArgs e)
{
input(NoteName.D);
}
private void button3_Click(object sender, EventArgs e)
{
input(NoteName.E);
}
private void button4_Click(object sender, EventArgs e)
{
input(NoteName.F);
}
private void button5_Click(object sender, EventArgs e)
{
input(NoteName.G);
}
private void button6_Click(object sender, EventArgs e)
{
input(NoteName.A);
}
private void button7_Click(object sender, EventArgs e)
{
input(NoteName.B);
}
}
}
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