form3.cs

来自「这一个关于c#GDI+的源代码程序」· CS 代码 · 共 618 行 · 第 1/2 页

		this.groupBox4.TabIndex = 29;
		this.groupBox4.TabStop = false;
		this.groupBox4.Text = "选择大小单位";
		// 
		// groupBox5
		// 
		this.groupBox5.Controls.Add(this.label1);
		this.groupBox5.Controls.Add(this.groupBox6);
		this.groupBox5.Controls.Add(this.FontSize);
		this.groupBox5.Location = new System.Drawing.Point(160, 208);
		this.groupBox5.Name = "groupBox5";
		this.groupBox5.Size = new System.Drawing.Size(328, 56);
		this.groupBox5.TabIndex = 30;
		this.groupBox5.TabStop = false;
		this.groupBox5.Text = "设置字体大小";
		// 
		// label1
		// 
		this.label1.Location = new System.Drawing.Point(24, 24);
		this.label1.Name = "label1";
		this.label1.Size = new System.Drawing.Size(80, 16);
		this.label1.TabIndex = 32;
		this.label1.Text = "字体大小";
		// 
		// groupBox6
		// 
		this.groupBox6.Location = new System.Drawing.Point(8, 160);
		this.groupBox6.Name = "groupBox6";
		this.groupBox6.Size = new System.Drawing.Size(328, 72);
		this.groupBox6.TabIndex = 29;
		this.groupBox6.TabStop = false;
		this.groupBox6.Text = "选择大小单位";
		// 
		// FontSize
		// 
		this.FontSize.Location = new System.Drawing.Point(120, 24);
		this.FontSize.Name = "FontSize";
		this.FontSize.Size = new System.Drawing.Size(56, 21);
		this.FontSize.TabIndex = 31;
		this.FontSize.Value = new System.Decimal(new int[] {
																1,
																0,
																0,
																0});
		this.FontSize.ValueChanged += new System.EventHandler(this.FontSize_ValueChanged);
		// 
		// FontPreview
		// 
		this.FontPreview.Location = new System.Drawing.Point(8, 272);
		this.FontPreview.Name = "FontPreview";
		this.FontPreview.Size = new System.Drawing.Size(480, 104);
		this.FontPreview.TabIndex = 31;
		this.FontPreview.Text = "字体示例";
		// 
		// Form3
		// 
		this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
		this.ClientSize = new System.Drawing.Size(496, 382);
		this.Controls.Add(this.FontPreview);
		this.Controls.Add(this.FontUnit_Document);
		this.Controls.Add(this.FontUnit_World);
		this.Controls.Add(this.FontUnit_Display);
		this.Controls.Add(this.FontUnit_Millimeter);
		this.Controls.Add(this.FontUnit_Inch);
		this.Controls.Add(this.FontUnit_Pixel);
		this.Controls.Add(this.FontColor_B);
		this.Controls.Add(this.groupBox1);
		this.Controls.Add(this.FontColor_R);
		this.Controls.Add(this.FontUnit_Dot);
		this.Controls.Add(this.FontColor_A);
		this.Controls.Add(this.FontlistBox);
		this.Controls.Add(this.FontColor_G);
		this.Controls.Add(this.groupBox2);
		this.Controls.Add(this.groupBox3);
		this.Controls.Add(this.groupBox5);
		this.Name = "Form3";
		this.Text = "增强型字体选择对话框";
		this.Load += new System.EventHandler(this.Form3_Load);
		this.groupBox1.ResumeLayout(false);
		((System.ComponentModel.ISupportInitialize)(this.FontColor_R)).EndInit();
		((System.ComponentModel.ISupportInitialize)(this.FontColor_A)).EndInit();
		((System.ComponentModel.ISupportInitialize)(this.FontColor_G)).EndInit();
		((System.ComponentModel.ISupportInitialize)(this.FontColor_B)).EndInit();
		this.groupBox3.ResumeLayout(false);
		this.groupBox5.ResumeLayout(false);
		((System.ComponentModel.ISupportInitialize)(this.FontSize)).EndInit();
		this.ResumeLayout(false);

	}
	#endregion
//字体对话框加载时的初始化处理
private void Form3_Load(object sender, System.EventArgs e)
{
	string tmp=string.Empty;
	//获取所有已经安装的字体系列
	InstalledFontCollection installedFontCollection=new InstalledFontCollection();
	FontFamily[] fontfamily=installedFontCollection.Families;
	int index=0;
	//访问fontfamily数组的每一个成员
	foreach (FontFamily i in fontfamily)
	{
		//在字体列表框中添加字体系列名
		this.FontlistBox.Items.Add(i.Name);
		index++;
	}

	//色彩色彩微调控件的取值范围：最大值
	FontColor_A.Maximum=255;
	FontColor_R.Maximum=255;
	FontColor_G.Maximum=255;
	FontColor_B.Maximum=255;
	//最小值
	FontColor_A.Minimum=0;
	FontColor_R.Minimum=0;
	FontColor_G.Minimum=0;
	FontColor_B.Minimum=0;
	//设置色彩默认值　
	this.FontColor_A.Value=255;
	this.FontColor_R.Value=0;
	this.FontColor_G.Value=0;
	this.FontColor_B.Value=0;
	//字体大小微调控件取值范围
	this.FontSize.Minimum=1;
	this.FontSize.Maximum=100;

	//默认的字体风格为常规
	this.FontStyle_Regular.Checked=true;
	//默认的字体单位为点
	this.FontUnit_Dot.Checked=true;
	//默认的字体大小为12
	this.FontSize.Value=12;
	//默认的字体系列为列表框中的第一个列表项
	this.FontlistBox.SelectedIndex=0;
	this.RedrawFontPreviewWindow();
}

	private void FontlistBox_SelectedIndexChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}
//根据用户对字体设置的信息，在预览框中进行字体显示
public void RedrawFontPreviewWindow()
{
	//如果未选择字体系列名称
	if(this.FontlistBox.SelectedIndex==-1)
		return;
	//示例字体输出效果的显示区域　
	Rectangle textOut=new Rectangle(0,0,
		this.FontPreview.Width,this.FontPreview.Height);

	Graphics graphics=this.FontPreview.CreateGraphics();
	graphics.Clear(this.FontPreview.BackColor);
	//获取当前已经选择的字体系列名称及字体大小
	string font_name=this.FontlistBox.Text;
	decimal font_size=this.FontSize.Value;

	//使用灰色线条绘制基准线，以10*10像素为单位
	Pen pen=new Pen(Color.Gray);
	//水平线
	for(int i=0;i<textOut.Height;i+=10)
		graphics.DrawLine(pen,0,i,textOut.Width,i);
	//垂直线
	for(int i=0;i<textOut.Width;i+=10)
		graphics.DrawLine(pen,i,0,i,textOut.Height);

	//获取当前已经选择的字体大小单位
	GraphicsUnit font_uint=GraphicsUnit.Point;
	if(this.FontUnit_Document.Checked)
		font_uint=GraphicsUnit.Document;

	if(this.FontUnit_Inch.Checked)
		font_uint=GraphicsUnit.Inch;

	if(this.FontUnit_Millimeter.Checked)
		font_uint=GraphicsUnit.Millimeter;

	if(this.FontUnit_Pixel.Checked)
		font_uint=GraphicsUnit.Pixel;

	if(this.FontUnit_Dot.Checked)
		font_uint=GraphicsUnit.Point;

	if(this.FontUnit_World.Checked)
		font_uint=GraphicsUnit.World;

	//获取当前已经选择的字体风格
	FontStyle font_style=FontStyle.Regular;
	if(this.FontStyle_Regular.Checked)
		font_style|=FontStyle.Regular;

	if(this.FontStyle_Bold.Checked)
		font_style|=FontStyle.Bold;

	if(this.FontStyle_Italic.Checked)
		font_style|=FontStyle.Italic;

	if(this.FontStyle_Strikeout.Checked)
		font_style|=FontStyle.Strikeout;

	if(this.FontStyle_Underline.Checked)
		font_style|=FontStyle.Underline;

	//获取选择的字体色彩
	Color basecolor=Color.FromArgb((int)this.FontColor_R.Value,
		(int)this.FontColor_G.Value,(int)this.FontColor_B.Value);
	//根据选择的色彩构造输出文本时使用的画刷
	SolidBrush   solidBrush=new SolidBrush(Color.FromArgb((int)this.FontColor_A.Value,basecolor));

	//根据选择的字体信息构造字体
	FontFamily   fontFamily=new FontFamily(font_name);
	Font         font=new Font(fontFamily,
		(int)font_size, (FontStyle)font_style, font_uint);

	//设置文本输出格式：居中
	StringFormat fmt=new StringFormat();
	fmt.Alignment=StringAlignment.Center;
	fmt.LineAlignment=StringAlignment.Center;

	//在字体示意区域输出文本
	graphics.DrawString("GDI+程序设计",font,solidBrush,textOut,fmt);
}

private void FontSize_ValueChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontColor_A_ValueChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontColor_R_ValueChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontColor_G_ValueChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontColor_B_ValueChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontStyle_Regular_CheckedChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontStyle_Bold_CheckedChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontStyle_Italic_CheckedChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontStyle_Underline_CheckedChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontStyle_Strikeout_CheckedChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontUnit_Dot_CheckedChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontUnit_Inch_CheckedChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontUnit_Pixel_CheckedChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontUnit_Millimeter_CheckedChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontUnit_Display_CheckedChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontUnit_Document_CheckedChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}

	private void FontUnit_World_CheckedChanged(object sender, System.EventArgs e)
	{
		this.RedrawFontPreviewWindow();
	}
}
}