public BlendFillEditorUI(IWindowsFormsEditorService in_svc, BlendFill in_blendFill, bool in_reverse) : base()
{
//This call is required by the Windows Form Designer.
InitializeComponent();
//Add any initialization after the InitializeComponent() call
this.m_svc = in_svc;
//
// Save out the values we were given.
//
this.m_direction = in_blendFill.Style;
this.m_startColor = in_blendFill.StartColor;
this.m_finishColor = in_blendFill.FinishColor;
this.m_reverse = in_reverse;
//
// Populate and select values in the appropriate list boxes.
//
System.Resources.ResourceManager rm;
rm = new System.Resources.ResourceManager(typeof(BlendFillEditorUI));
populateDirectionListBox(rm);
populateAndSelectColorList(this.startColorList, this.m_startColor, rm);
populateAndSelectColorList(this.finishColorList, this.m_finishColor, rm);
}
public static Color Blend(Color a, Color b, BlendStyle style)
{
Color output = Colors.White;
switch (style)
{
case BlendStyle.Multiply:
output = Multiply(a, b);
break;
case BlendStyle.Screen:
output = Screen(a, b);
break;
case BlendStyle.Overlay:
output = Overlay(a, b);
break;
case BlendStyle.Difference:
output = Difference(a, b);
break;
case BlendStyle.Average:
output = Average(a, b);
break;
case BlendStyle.Negation:
output = Negation(a, b);
break;
}
return(output);
}
//=------------------------------------------------------------------=
// directionComboBox_SelectedIndexChanged
//=------------------------------------------------------------------=
/// <summary>
/// Update the sample panel with the new selection.
/// </summary>
///
private void directionComboBox_SelectedIndexChanged
(
object sender,
System.EventArgs e
)
{
this.m_direction = (BlendStyle)this.directionComboBox.SelectedIndex;
this.blendSamplePanel.Refresh();
}
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
// Public Methods/Properties/etc
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
// Constructor
//=------------------------------------------------------------------=
//
/// <summary>
/// Initializes a new instance of this class. Requires the blend
/// style, as well as the start and finish color.
/// </summary>
///
/// <param name="in_blendStyle">
/// Style of blending we'll use.
/// </param>
///
/// <param name="in_startColor">
/// Color with which to begin blend.
/// </param>
///
/// <param name="in_finishColor">
/// Color with which to finish blend.
/// </param>
///
public BlendFill
(
BlendStyle in_blendStyle,
Color in_startColor,
Color in_finishColor
)
{
this.m_startColor = in_startColor;
this.m_finishColor = in_finishColor;
this.m_style = in_blendStyle;
}
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
// Private Methods/Properties/Subs
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
//=------------------------------------------------------------------=
// getAngle
//=------------------------------------------------------------------=
/// <summary>
/// Returns an angle for a LinearGradientBrush given a
/// direction/style.
/// </summary>
///
/// <param name="in_direction">
/// The BlendStyle or Direction of painting.
/// </param>
///
/// <param name="in_reverseForRTL">
/// Indicates wheter we should reverse for RightToLeftReading.
/// </param>
///
/// <returns>
/// Returns the Angle that should be used in drawing.
/// </returns>
///
private static float getAngle
(
BlendStyle in_direction,
bool in_reverseForRTL
)
{
switch (in_direction)
{
case BlendStyle.Horizontal:
if (in_reverseForRTL)
{
return(180);
}
else
{
return(0);
}
case BlendStyle.Vertical:
return(90);
case BlendStyle.ForwardDiagonal:
if (in_reverseForRTL)
{
return(135);
}
else
{
return(45);
}
case BlendStyle.BackwardDiagonal:
if (in_reverseForRTL)
{
return(45);
}
else
{
return(135);
}
default:
System.Diagnostics.Debug.Fail("Bogus Direction");
return(0);
}
}
//=------------------------------------------------------------------=
// blendSamplePanel_MouseUp
//=------------------------------------------------------------------=
/// <summary>
/// They've clicked on the sample panel. Update the selection if
/// necessary.
/// </summary>
///
private void blendSamplePanel_MouseUp
(
object sender,
System.Windows.Forms.MouseEventArgs e
)
{
Rectangle[] rects;
rects = getPanelRects();
for (int x = 0; x < rects.Length; x++)
{
if (rects[x].Contains(e.X, e.Y))
{
this.m_direction = (BlendStyle)x;
this.blendSamplePanel.Refresh();
this.directionComboBox.SelectedIndex = x;
}
}
}
/// <summary>
/// 创建画刷,渲染背景和边框使用
/// </summary>
/// <param name="rect">画刷区域</param>
/// <param name="baseColor">基色</param>
/// <param name="pos1">基色位置1</param>
/// <param name="pos2">基色位置2</param>
/// <param name="reverse">是否反转</param>
/// <param name="mode">渐变模式</param>
/// <param name="style">样式</param>
/// <returns>画刷</returns>
public static Brush CreateBrush(Rectangle rect, Color baseColor, float pos1, float pos2, bool reverse, LinearGradientMode mode, BlendStyle style)
{
Brush brush = null;
RectangleEx.MakeNotEmpty(ref rect);
switch (style)
{
case BlendStyle.Solid:
{
SolidBrush brushTmp = new SolidBrush(baseColor);
brush = brushTmp;
brushTmp = null;
}
break;
case BlendStyle.Gradient:
{
LinearGradientBrush brushTmp = new LinearGradientBrush(rect, Color.Empty, Color.Empty, mode);
//画刷设置
ColorBlend blendTmp = new ColorBlend();
Color[] colors;
float[] positions;
RenderEngine.GetColorPosGradient(baseColor, pos1, pos2, reverse, false, out colors, out positions);
blendTmp.Colors = colors;
blendTmp.Positions = positions;
//
brushTmp.InterpolationColors = blendTmp;
brush = brushTmp;
brushTmp = null;
}
break;
case BlendStyle.FadeIn:
{
LinearGradientBrush brushTmp = new LinearGradientBrush(rect, Color.Empty, Color.Empty, mode);
//画刷设置
ColorBlend blendTmp = new ColorBlend();
Color[] colors;
float[] positions;
RenderEngine.GetColorPosFadeIn(baseColor, pos1, pos2, reverse, false, out colors, out positions);
blendTmp.Colors = colors;
blendTmp.Positions = positions;
//
brushTmp.InterpolationColors = blendTmp;
brush = brushTmp;
brushTmp = null;
}
break;
case BlendStyle.FadeOut:
{
LinearGradientBrush brushTmp = new LinearGradientBrush(rect, Color.Empty, Color.Empty, mode);
//画刷设置
ColorBlend blendTmp = new ColorBlend();
Color[] colors;
float[] positions;
RenderEngine.GetColorPosFadeOut(baseColor, pos1, pos2, reverse, false, out colors, out positions);
blendTmp.Colors = colors;
blendTmp.Positions = positions;
//
brushTmp.InterpolationColors = blendTmp;
brush = brushTmp;
brushTmp = null;
}
break;
case BlendStyle.FadeInFadeOut:
{
LinearGradientBrush brushTmp = new LinearGradientBrush(rect, Color.Empty, Color.Empty, mode);
//画刷设置
ColorBlend blendTmp = new ColorBlend();
Color[] colors;
float[] positions;
RenderEngine.GetColorPosFadeInFadeOut(baseColor, pos1, pos2, reverse, false, out colors, out positions);
blendTmp.Colors = colors;
blendTmp.Positions = positions;
//
brushTmp.InterpolationColors = blendTmp;
brush = brushTmp;
brushTmp = null;
}
break;
default:
break;
}
return(brush);
}
/// <summary>
/// 创建画刷,渲染线段使用
/// </summary>
/// <param name="pt1">起点</param>
/// <param name="pt2">终点</param>
/// <param name="baseColor">基色</param>
/// <param name="style">样式</param>
/// <returns>画刷</returns>
public static Brush CreateBrush(Point pt1, Point pt2, Color baseColor, BlendStyle style)
{
Brush brush = null;
switch (style)
{
case BlendStyle.Solid:
{
SolidBrush brushTmp = new SolidBrush(baseColor);
brush = brushTmp;
brushTmp = null;
}
break;
case BlendStyle.Gradient:
{
LinearGradientBrush brushTmp = new LinearGradientBrush(GetLineRect(pt1, pt2), Color.Empty, Color.Empty, GetLineDegrees(pt1, pt2));
//画刷设置
ColorBlend blendTmp = new ColorBlend();
Color[] colors;
float[] positions;
RenderEngine.GetColorPosGradient(baseColor, float.NaN, float.NaN, false, true, out colors, out positions);
blendTmp.Colors = colors;
blendTmp.Positions = positions;
//
brushTmp.InterpolationColors = blendTmp;
brush = brushTmp;
brushTmp = null;
}
break;
case BlendStyle.FadeIn:
{
LinearGradientBrush brushTmp = new LinearGradientBrush(GetLineRect(pt1, pt2), Color.Empty, Color.Empty, GetLineDegrees(pt1, pt2));
//画刷设置
ColorBlend blendTmp = new ColorBlend();
Color[] colors;
float[] positions;
RenderEngine.GetColorPosFadeIn(baseColor, float.NaN, float.NaN, false, true, out colors, out positions);
blendTmp.Colors = colors;
blendTmp.Positions = positions;
//
brushTmp.InterpolationColors = blendTmp;
brush = brushTmp;
brushTmp = null;
}
break;
case BlendStyle.FadeOut:
{
LinearGradientBrush brushTmp = new LinearGradientBrush(GetLineRect(pt1, pt2), Color.Empty, Color.Empty, GetLineDegrees(pt1, pt2));
//画刷设置
ColorBlend blendTmp = new ColorBlend();
Color[] colors;
float[] positions;
RenderEngine.GetColorPosFadeOut(baseColor, float.NaN, float.NaN, false, true, out colors, out positions);
blendTmp.Colors = colors;
blendTmp.Positions = positions;
//
brushTmp.InterpolationColors = blendTmp;
brush = brushTmp;
brushTmp = null;
}
break;
case BlendStyle.FadeInFadeOut:
{
LinearGradientBrush brushTmp = new LinearGradientBrush(GetLineRect(pt1, pt2), Color.Empty, Color.Empty, GetLineDegrees(pt1, pt2));
//画刷设置
ColorBlend blendTmp = new ColorBlend();
Color[] colors;
float[] positions;
RenderEngine.GetColorPosFadeInFadeOut(baseColor, float.NaN, float.NaN, false, true, out colors, out positions);
blendTmp.Colors = colors;
blendTmp.Positions = positions;
//
brushTmp.InterpolationColors = blendTmp;
brush = brushTmp;
brushTmp = null;
}
break;
default:
break;
}
return(brush);
}
