public ColorPickForm()
{
InitializeComponent();
mColorPicked = new Color();
mColorHSL = new ColorSpaceConverter.HSL();
mColorCMYK = new ColorSpaceConverter.CMYK();
radioButtonHSL_H.Checked = true; ///< 默认模式
// 注册事件响应
colorPaletteUserControl.Scroll += new System.EventHandler(this.colorPaletteUserControl_Scroll);
colorVerticalSliderUserControl.Scroll += new System.EventHandler(this.colorVerticalSliderUserControl_Scroll);
// 设置黑色为默认颜色
ColorPicked = Color.FromArgb(0, 0, 0);
}
private void textBoxRGB_R_Leave(object sender, EventArgs e)
{
string colorText = textBoxRGB_R.Text;
// 非法字符检测
bool hasIllegalChar = false;
if (colorText.Length <= 0)
{
hasIllegalChar = true;
}
else
{
foreach (char letter in colorText)
{
if (!char.IsNumber(letter))
{
hasIllegalChar = true;
break;
}
}
}
// 计算新的颜色值
if (hasIllegalChar)
{
MessageBox.Show("Red must be a number value between 0 and 255!");
UpdateTextBoxes(); ///< 更新文本框
}
else
{
int colorValue = int.Parse(colorText);
if (colorValue < 0)
{
MessageBox.Show("Red must be a number value between 0 and 255, Closese value inserted!");
textBoxRGB_R.Text = "0";
mColorPicked = Color.FromArgb(0, mColorPicked.G, mColorPicked.B);
}
else if (colorValue > 255)
{
MessageBox.Show("Red must be a number value between 0 and 255, Closese value inserted!");
textBoxRGB_R.Text = "255";
mColorPicked = Color.FromArgb(255, mColorPicked.G, mColorPicked.B);
}
else
{
mColorPicked = Color.FromArgb(colorValue, mColorPicked.G, mColorPicked.B);
}
mColorHSL = Common.ColorSpaceConverter.RGB2HSL(mColorPicked);
mColorCMYK = Common.ColorSpaceConverter.RGB2CMYK(mColorPicked);
colorPaletteUserControl.RGB = mColorPicked; ///< 用RGB值更新主控件
colorVerticalSliderUserControl.RGB = mColorPicked; ///< 用RGB值更新辅助控件
UpdateTextBoxes(); ///< 更新文本框
}
}
private void colorVerticalSliderUserControl_Scroll(object sender, System.EventArgs e)
{
// 从辅助颜色控件获取当前颜色
mColorPicked = colorVerticalSliderUserControl.RGB;
mColorHSL =colorVerticalSliderUserControl.HSL;
mColorCMYK = Common.ColorSpaceConverter.RGB2CMYK(colorVerticalSliderUserControl.RGB);
// 更新界面
UpdateTextBoxes();
// 用HSL值更新主控件(数值精度比较高)
colorPaletteUserControl.HSL = mColorHSL;
// 发送改变消息
if (OnColorChanged != null)
OnColorChanged(this, e);
}