Hallo, kali ini saya akan membuat tutorial aplikasi Paint sederhana menggunakan software visual studio 2012 - C# windows form application
Berikut ini adalah tutorialnya ;
1. Create new project
Next
2.
Mendesign
tampilan form yang kita ingin buat
3. Programnya / Isi kodingnya
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
namespace pain6
{
public partial class Pain : Form
{
public Pain()
{
InitializeComponent();
}
/// <summary>
/// variable global
/// </summary>
int tebal = 1, initialX, initialY;
Pen p;
Color wrn, wrn1;
private Graphics objGraphic;
private bool shouldPaint = false, warna = false;
Boolean line, rectang, circle, triangle;
double px, py, vector, angle ;
/// <summary>
/// vatiable line
/// </summary>
private Point preCoor, newCoor;
/// <summary>
/// variable rectang
/// </summary>
int width, height;
/// <summary>
/// variable circle
/// </summary>
int cirW, cirL;
/// <summary>
/// variable triangle
/// </summary>
private List<Point> points = new List<Point>();
Point a, b, c;
Point[] list = new Point[3];
/// <summary>
///
/// </summary>
/// <param name=”sender”></param>
/// <param name=”e”></param>
private void panel1_Paint(object sender, PaintEventArgs e)
{
objGraphic = panel1.CreateGraphics();
}
private void numericUpDown1_ValueChanged(object sender, EventArgs e)
{
tebal = (int)numericUpDown1.Value;
}
private void clear_Click(object sender, EventArgs e)
{
cleartext(); buttoncolor(); numericUpDown1.Value = 1;
}
/// <summary>
/// reset boolean of button
/// </summary>
void reset()
{
line = false; rectang = false;
circle = false; triangle = false;
}
/// <summary>
/// fungsi
/// </summary>
///
void colour()
{
warna = true;
p = new Pen(wrn);
if (tebal == 0)
{
DialogResult box;
box = MessageBox.Show("Width input cannot 0 pixel", "Error", MessageBoxButtons.RetryCancel);
if (box == DialogResult.Cancel)
{ this.Dispose(); }
}
}
/// <summary>
/// fungsi rumus-rumus
/// </summary>
void rumusline()
{
px = newCoor.X; py = newCoor.Y;
vector = Math.Sqrt((Math.Pow(px, 2)) + (Math.Pow(py, 2)));
angle = Math.Atan(py / px) * 180 / Math.PI; display();
}
void rumusrectang()
{
px = width; py = height;
vector = px * py;
if (rectang == true)
{ angle = 0; } display();
}
void rumuscircle()
{
px = cirW; py = cirL;
vector = Math.PI * 0.5 * (cirW + cirL);
if (circle == true)
{ angle = 360; } display();
}
void rumustriangle ()
{
px = b.X-a.X; py = c.Y;
vector = 0.5 * px * py;
if (triangle == true)
{ angle = 180; } display();
}
/// <summary>
/// tampilkan information
/// </summary>
void display()
{
textBoxX.Text = Convert.ToString(px);
textBoxY.Text = Convert.ToString(py);
textBoxL.Text = vector.ToString("#.##");
textBoxAng.Text = angle.ToString("#,0.00");
}
/// <summary>
/// clear text
/// </summary>
void cleartext()
{
panel1.Invalidate();
this.textBoxX.Clear(); this.textBoxY.Clear();
this.textBoxL.Clear(); this.textBoxAng.Clear();
}
/// <summary>
/// buttoncolor
/// </summary>
void buttoncolor()
{
Line.BackColor = Color.Snow; Rectang.BackColor = Color.Snow;
Circle.BackColor = Color.Snow; Triagle.BackColor = Color.Snow;
}
/// <summary>
/// event mouse
/// </summary>
/// <param name=”sender”></param>
/// <param name=”e”></param>
private void panel1_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left && warna == true)
{
if (line == true)
{
shouldPaint = true;
preCoor = e.Location; newCoor = preCoor;
panel1.Invalidate();
}
else if (rectang == true)
{
shouldPaint = true;
initialX = e.X; initialY = e.Y;
panel1.Invalidate();
}
else if (circle == true)
{
shouldPaint = true;
initialX = e.X; initialY = e.Y;
panel1.Invalidate();
}
else if (triangle == true)
{
shouldPaint = true;
Point a = e.Location; points.Add(a);
panel1.Invalidate();
}
}
}
private void panel1_MouseMove(object sender, MouseEventArgs e)
{
if (shouldPaint == true && warna == true)
{
if (line == true)
{
ControlPaint.DrawReversibleLine(panel1.PointToScreen(preCoor), panel1.PointToScreen(newCoor), wrn1);
newCoor = new Point(e.X, e.Y);
ControlPaint.DrawReversibleLine(panel1.PointToScreen(preCoor), panel1.PointToScreen(newCoor), wrn1);
}
else if (rectang == true)
{
this.Refresh();
p.Width = tebal;
width = e.X - initialX;
height = e.Y - initialY;
Rectangle rect = new Rectangle(Math.Min(e.X, initialX),
Math.Min(e.Y, initialY),
Math.Abs(e.X - initialX),
Math.Abs(e.Y - initialY));
objGraphic.DrawRectangle(p, rect);
}
else if (circle == true)
{
this.Refresh();
p.Width = tebal;
cirW = Math.Abs(e.X - initialX);
cirL = Math.Abs(e.Y - initialY);
Rectangle rec = new Rectangle(Math.Min(e.X, initialX),
Math.Min(e.Y, initialY),
Math.Abs(e.X - initialX),
Math.Abs(e.Y - initialY));
objGraphic.DrawEllipse(p, rec);
}
else if (triangle == true)
{
Point a = e.Location;
points.Add(a);
p.Width = tebal;
System.Diagnostics.Debug.WriteLine(e.Y);
a = points[0];
a.X = (points[0].X + points[points.Count - 1].X) / 2;
b = points[points.Count - 1];
b.X = points[0].X;
c = points[points.Count - 1];
list[0] = a;
list[1] = b;
list[2] = c;
}
}
}
private void panel1_MouseUp(object sender, MouseEventArgs e)
{
if (shouldPaint == true && warna == true)
{
if (line == true)
{
p.Width = tebal;
ControlPaint.DrawReversibleLine(panel1.PointToScreen(preCoor), panel1.PointToScreen(newCoor), wrn1);
objGraphic.DrawLine(p, preCoor, newCoor);
rumusline(); shouldPaint = false;
}
else if (rectang == true)
{ rumusrectang(); shouldPaint = false; }
else if (circle == true)
{ rumuscircle(); shouldPaint = false; }
else if (triangle == true)
{
this.Refresh();
objGraphic.DrawPolygon(p, list);
foreach (Point el in points)
System.Diagnostics.Debug.WriteLine(el);
rumustriangle(); shouldPaint = false;
}
}
}
private void panel1_MouseClick(object sender, MouseEventArgs e)
{
if (line == false && rectang == false && circle == false && triangle == false)
{
DialogResult box2;
box2 = MessageBox.Show("Please, Select Tools", "Error", MessageBoxButtons.RetryCancel);
if (box2 == DialogResult.Cancel)
{ this.Dispose(); }
}
if (warna == false)
{
DialogResult box1;
box1 = MessageBox.Show("Please, Select Color", "Error", MessageBoxButtons.RetryCancel);
if (box1 == DialogResult.Cancel)
{ this.Dispose(); }
}
if (tebal == 0)
{
DialogResult box;
box = MessageBox.Show("Width input cannot 0 pixel", "Error", MessageBoxButtons.RetryCancel);
if (box == DialogResult.Cancel)
{ this.Dispose(); }
}
}
/// <summary>
/// warna
/// </summary>
/// <param name=”sender”></param>
/// <param name=”e”></param>
private void buttonBlack_Click(object sender, EventArgs e)
{
buttonBlack.FlatAppearance.BorderColor = System.Drawing.Color.White;
wrn = Color.Black; wrn1 = Color.Black; colour();
}
private void buttonRed_Click(object sender, EventArgs e)
{
buttonRed.FlatAppearance.BorderColor = System.Drawing.Color.White;
wrn = Color.Red; wrn1 = Color.Cyan; colour();
}
private void buttonOrange_Click(object sender, EventArgs e)
{
buttonOrange.FlatAppearance.BorderColor = System.Drawing.Color.White;
wrn = Color.Orange; wrn1 = Color.DeepSkyBlue; colour();
}
private void buttonYellow_Click(object sender, EventArgs e)
{
buttonYellow.FlatAppearance.BorderColor = System.Drawing.Color.White;
wrn = Color.Yellow; wrn1 = Color.Blue; colour();
}
private void buttonGreen_Click(object sender, EventArgs e)
{
buttonGreen.FlatAppearance.BorderColor = System.Drawing.Color.White;
wrn = Color.Green; wrn1 = Color.Green; colour();
}
private void buttonBlue_Click(object sender, EventArgs e)
{
buttonBlue.FlatAppearance.BorderColor = System.Drawing.Color.White;
wrn = Color.Blue; wrn1 = Color.Yellow; colour();
}
private void buttonPurple_Click(object sender, EventArgs e)
{
buttonPurple.FlatAppearance.BorderColor = System.Drawing.Color.White;
wrn = Color.Purple; wrn1 = Color.Purple; colour();
}
private void buttonMagenta_Click(object sender, EventArgs e)
{
buttonMagenta.FlatAppearance.BorderColor = System.Drawing.Color.White;
wrn = Color.Magenta; wrn1 = Color.Lime; colour();
}
/// <summary>
/// exit button
/// </summary>
/// <param name=”sender”></param>
/// <param name=”e”></param>
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if (e.CloseReason == CloseReason.UserClosing)
{
DialogResult result = MessageBox.Show("Do you really want to exit?", "Warning", MessageBoxButtons.YesNo);
if (result == DialogResult.Yes)
{ Environment.Exit(0); }
else
{ e.Cancel = true; }
}
else
{ e.Cancel = true; }
}
/// <summary>
/// button shape
/// </summary>
/// <param name=”sender”></param>
/// <param name=”e”></param>
private void Line_Click(object sender, EventArgs e)
{
reset(); cleartext(); line = true;
buttoncolor(); Line.BackColor = Color.LightCyan;
}
private void Rectang_Click(object sender, EventArgs e)
{
reset(); cleartext(); rectang = true;
buttoncolor(); Rectang.BackColor = Color.LightCyan;
}
private void Circle_Click(object sender, EventArgs e)
{
reset(); cleartext(); circle = true;
buttoncolor(); Circle.BackColor = Color.LightCyan;
}
private void Triagle_Click(object sender, EventArgs e)
{
reset(); cleartext(); triangle = true;
buttoncolor(); Triagle.BackColor = Color.LightCyan;
}
private void pictureBox1_Click(object sender, EventArgs e)
{
cleartext(); buttoncolor(); numericUpDown1.Value = 1;
}
private void Pain_Load(object sender, EventArgs e)
{
}
}
4. Jalankan aplikasi paint sederhananya
Berikut ini tutorial youtubenya :
