C# Font.GetHeight方法代码示例

	static private void PrintPageEvent (object sender, PrintPageEventArgs e)
	{		
		float lines_page, y;		
		int count = 0;
		float left = e.MarginBounds.Left;
		float top = e.MarginBounds.Top;
		String line = null;
		Font font = new Font ("Arial", 10);
		float font_height = font.GetHeight (e.Graphics);
		lines_page = e.MarginBounds.Height  / font_height;		

		while (count < lines_page) {			
			line = stream.ReadLine ();
			
			if (line == null)
				break;
				
			y = top + (count * font_height);	
			e.Graphics.DrawString (line, font, Brushes.Black, left, y, new StringFormat());
			
			count++;
		}
		
		if (line != null)
			e.HasMorePages = true;
		else
			e.HasMorePages = false;
	}

        private void resizeFont()
        {
            const int minFontSize = 7;
            //определение подходящего шрифта по ширине control'a
            float neededSizeX = (this.Width - this.Font.Size * 2) / this.Text.Length;
            int tempSizeXInPoint = minFontSize;
            while (true)
            {
                Graphics g = this.CreateGraphics();
                Font tempFont = new Font(this.Font.FontFamily, tempSizeXInPoint);
                int tempSize = (int)g.MeasureString(this.Text, tempFont).Width / this.Text.Length;
                if (neededSizeX - tempSize < 0.5)
                {
                    break;
                }
                tempSizeXInPoint++;
                #region forDebug
                if (tempSizeXInPoint == 300)
                {
                    tempSizeXInPoint = 9;
                    break;
                }
                #endregion
            }
            //определение подходящего шрифта по высоте control'a
            int tempSizeYInPoint = minFontSize;
            while (true)
            {
                Graphics g = this.CreateGraphics();
                Font tempFont = new Font(this.Font.FontFamily, tempSizeYInPoint);
                if (this.Height - g.MeasureString(this.Text, tempFont).Height < 5)
                {
                    break;
                }
                tempSizeYInPoint++;
                #region forDebug
                if (tempSizeYInPoint == 300)
                {
                    tempSizeYInPoint = 9;
                    break;
                }
                #endregion
            }
            //выбор наиболее подходящего из двух найденых шрифтов
            int resSize;
            Font resFont;
            if (tempSizeYInPoint > tempSizeXInPoint) // выбираем минимальный размер шрифта, т.к. главное что бы отобразилось все содержимое
            {
                resSize = tempSizeXInPoint;//размер определенный по ширине подошел
                resFont = new Font(this.Font.FontFamily, resSize);
                int numberOfLines = (int)((this.Height - 10) / resFont.GetHeight());//есть ли возможность разбить содержимое на несколько строк
                if (numberOfLines > 1)
                {
                    int tempResSize = resSize;
                    while (true)
                    {
                        Graphics g = this.CreateGraphics();
                        Font tempFont = new Font(this.Font.FontFamily, tempResSize);
                        numberOfLines = (int)((this.Height - 10) / tempFont.GetHeight());
                        if ((this.Width - tempResSize * 2) * numberOfLines - g.MeasureString(this.Text, tempFont).Width < 100)
                        {
                            break;
                        }
                        tempResSize++;
                        #region forDebug
                        if (tempResSize == 300)
                        {
                            tempResSize = 9;
                            break;
                        }
                        #endregion

                    }
                    //подходящий размер шрифта определен, теперь проверяем не слишком ли он мал
                    if (tempResSize < minFontSize + 2)
                    {
                        resFont = new Font(this.Font.FontFamily, minFontSize);
                    }
                    else if (tempResSize < 25)
                    {
                        resFont = new Font(this.Font.FontFamily, tempResSize - 1);
                    }
                    else // -1,-2 расходуется на погрешности отступов от краев control'a до текста
                    {
                        resFont = new Font(this.Font.FontFamily, tempResSize - 2);
                    }
                }

            }
            else
            {
                resSize = tempSizeYInPoint; //размер определенный по высоте подошел
                resFont = new Font(this.Font.FontFamily, resSize);
            }
            this.Font = resFont;
        }

 /// <summary>
 /// Gets height for the font.
 /// </summary>
 /// <param name="font">Font whose height is calculated.</param>
 /// <returns>Height of the font in inches.</returns>
 public double GetHeight(Font font)
 {
     var multiplier = Application.Current.Host.Content.ScaleFactor / 100d;
     return multiplier * font.GetHeight() / _display.Ydpi;
 }

    public static string Show()
    {
        //define the image list to contain all the file type icons
        ImageList imageList = new ImageList {
            ColorDepth = ColorDepth.Depth32Bit,
            ImageSize = new Size(32, 32)
        };
        imageList.Images.Add("asm", Icons.GetBitmap("filetype.asm", 32));
        imageList.Images.Add("c", Icons.GetBitmap("filetype.c", 32));
        imageList.Images.Add("cpp", Icons.GetBitmap("filetype.cpp", 32));
        imageList.Images.Add("h", Icons.GetBitmap("filetype.h", 32));
        imageList.Images.Add("cs", Icons.GetBitmap("filetype.cs", 32));
        imageList.Images.Add("vb", Icons.GetBitmap("filetype.vb", 32));
        imageList.Images.Add("unknown", Icons.GetBitmap("filetype.unknown", 32));

        //get the screen size so we can set the form
        //to fill 75% of the screen.
        Size screenSize = Screen.FromPoint(Cursor.Position).WorkingArea.Size;

        //create the form instance
        Form form = new Form() {
            Text = "Add solution item",
            ShowIcon = false,
            ShowInTaskbar = false,
            StartPosition = FormStartPosition.CenterScreen,
            FormBorderStyle = FormBorderStyle.FixedSingle,
            MaximizeBox = false,
            MinimizeBox = false,
            Size = new Size(600, 400)
                    //(int)(screenSize.Width * 0.75),
                    //(int)(screenSize.Height * 0.75)),
        };

        //create a panel that would contain everything so
        //we can easily get the actual working size we have
        //for the window
        Panel workingArea = new Panel() { Dock = DockStyle.Fill };
        form.Controls.Add(workingArea);

        //define the "add"/"cancel" buttons first so we can deturmine how
        //big everything would be to match it
        Button addButton = new Button() { Text = "Add" };
        Button cancelButton = new Button() { Text = "Cancel" };

        //deturmine the height of the input region
        int padding = 5;
        int inputRegionHeight = addButton.Height + (padding * 2);

        #region create the the list
        ListView list = new ListView() {
            Location = Point.Empty,
            Size = new Size(workingArea.Width, workingArea.Height - inputRegionHeight),
            LargeImageList = imageList,
            SmallImageList = imageList,
            View = View.LargeIcon,
        };
        workingArea.Controls.Add(list);
        addType(list, "asm", "c", "cpp", "h", "cs", "vb", "unknown");
        list.Focus();
        #endregion

        #region add the buttons
        Button[] buttons = { addButton, cancelButton };

        //add the buttons and calculate there position to be
        //displayed on the right side
        int currentButtonX = 0;
        for (int c = 0; c < buttons.Length; c++) {
            currentButtonX += buttons[c].Width + padding;

            int x = workingArea.Width - currentButtonX;
            int y =
                    (workingArea.Height - inputRegionHeight) +
                    (inputRegionHeight / 2) - (buttons[c].Height / 2);

            buttons[c].Location = new Point(x, y);
            workingArea.Controls.Add(buttons[c]);
        }

        #endregion

        #region Filename label
        //define the label
        Font filenameFont = new Font("Arial", 10, FontStyle.Bold);
        Label filenameLabel = new Label() {
            Text = "Filename:",
            Font = filenameFont
        };

        //define the location of the label to be at the beginning and centered
        //vertically.
        int filenameX = padding;
        int filenameY = (workingArea.Height - inputRegionHeight) +
                        (inputRegionHeight / 2) - (((int)filenameFont.GetHeight() + 1) / 2);
        filenameLabel.Location = new Point(filenameX, filenameY);
        workingArea.Controls.Add(filenameLabel);

        //calculate the end position x position of the label
        //so we know were to position the text box
        int filenameEndX = 75;//filenameLabel.Width + (padding * 2);
//.........这里部分代码省略.........