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| #pragma endregion
bool press=false;
int x1;
int y1;
int w1;
int h1;
Point one1;
Point one2;
Color Current=Color->Black;
int tol=1;
private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e)
{
DialogResult=colorDialog1->ShowDialog();
if(DialogResult==System::Windows::Forms::DialogResult::OK)
{
Current=colorDialog1->Color;
}
}
private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e)
{
Bitmap bmp = gcnew Bitmap(493,340);
pictureBox1->Image=bmp;
DoubleBuffered=true;
}
private: System::Void pictureBox1_MouseMove(System::Object^ sender, System::Windows::Forms::MouseEventArgs^ e)
{
Graphics^ g=Graphics::FromImage(pictureBox1->Image);
g->SmoothingMode=System::Drawing::Drawing2D::SmoothingMode::AntiAlias;
if(press)
{
one2=e->Location;
if(radioButton4->Checked)
{
g->DrawLine(gcnew Pen(Current,tol),one1,one2);
one1=one2;
}
pictureBox1->Refresh();
}
g->Save();
}
private: System::Void pictureBox1_Paint(System::Object^ sender, System::Windows::Forms::PaintEventArgs^ e)
{
Pen MyPen=gcnew Pen(Current,tol);
if(press)
{
x1=Math::Min(one1.X,one2.X);
y1=Math::Min(one1.Y,one2.Y);
w1=Math::Abs(one1.X - one2.X);
h1=Math::Abs(one1.X - one2.X);
if(radioButton2->Checked)
{
e->Graphics->DrawEllipse(MyPen,x1,y1,w1,h1);
}
if(radioButton1->Checked)
{
e->Graphics->DrawRectangle(MyPen,x1,y1,w1,h1);
}
if(radioButton3->Checked)
{
e->Graphics->DrawLine(MyPen,one1,one2);
}
}
}
private: System::Void pictureBox1_MouseUp(System::Object^ sender, System::Windows::Forms::MouseEventArgs^ e)
{
Pen MyPen=gcnew Pen(Current,tol);
press=false;
Graphics^ g=Graphics::FromImage(pictureBox1->Image);
if(radioButton1->Checked)
{
g->DrawEllipse(MyPen,x1,y1,w1,h1);
}
if(radioButton2->Checked)
{
g->DrawRectangle(MyPen,x1,y1,w1,h1);
}
if(radioButton3->Checked)
{
g->DrawLine(MyPen,one1,one2);
}
g->Save();
}
private: System::Void pictureBox1_MouseDown(System::Object^ sender, System::Windows::Forms::MouseEventArgs^ e)
{
press=true;
one1=e->Location;
}
private: System::Void button2_Click(System::Object^ sender, System::EventArgs^ e)
{
Bitmap bit2=gcnew Bitmap(493,340);
pictureBox1->Image=bit2;
}
private: System::Void button3_Click(System::Object^ sender, System::EventArgs^ e)
{
this->Close();
}
private: System::Void comboBox1_TextUpdate(System::Object^ sender, System::EventArgs^ e)
{
tol=Convert::ToInt32(comboBox1->Text);
}
};
} |
(
