[英]Mouse clicks on the created regions in Venn diagram
I have created a venn diagram which looks like this, 我创建了一个维恩图,看起来像这样,
I have also created regions for handling clicks on each part of venn. 我还创建了用于处理维恩各个部分的点击的区域。 Left / Right and common two parts.
左/右和普通两部分。 Here is the code I have,
这是我的代码,
private void panelControlVennDiagram_Paint(object sender, PaintEventArgs e)
{
Rectangle leftVenn = new Rectangle(20, 50, 130, 130);
Rectangle rightVenn = new Rectangle(60, 50, 130, 130);
commonRegion = new Region();
Pen pen = new Pen(Color.Black,3);
using (Brush brushLeft = new SolidBrush(leftVennColor))
{
ellipseLeftOnlyPath.AddEllipse(leftVenn);
leftOnlyRegion = new Region(ellipseLeftOnlyPath);
e.Graphics.FillEllipse(brushLeft, leftVenn);
e.Graphics.DrawEllipse(pen, leftVenn);
brushLeft.Dispose();
}
using (Brush brushRight = new SolidBrush(rightVennColor))
{
ellipseRightOnlyPath.AddEllipse(rightVenn);
rightOnlyRegion = new Region(rightVenn);
e.Graphics.FillEllipse(brushRight, rightVenn);
e.Graphics.DrawEllipse(pen, rightVenn);
brushRight.Dispose();
}
using (GraphicsPath circle_path = new GraphicsPath())
{
circle_path.AddEllipse(leftVenn);
commonRegion.Intersect(circle_path);
}
using (GraphicsPath circle_path = new GraphicsPath())
{
circle_path.AddEllipse(rightVenn);
commonRegion.Intersect(circle_path);
}
leftOnlyRegion.Exclude(commonRegion);
rightOnlyRegion.Exclude(commonRegion);
using (Brush brushCommon = new SolidBrush(commonColor))
{
e.Graphics.FillRegion(brushCommon, commonRegion);
brushCommon.Dispose();
}
using (Brush brushLeftOnly = new SolidBrush(leftRightCommonColor))
{
ellipseLeftRightCommonPath.AddEllipse(65, 80, 35, 40);
e.Graphics.FillEllipse(brushLeftOnly, 65, 80, 35, 40);
e.Graphics.DrawEllipse(pen, 65, 80, 35, 40);
brushLeftOnly.Dispose();
}
using (Brush brushRightOnly = new SolidBrush(rightLeftCommonColor))
{
ellipseRightLeftCommonPath.AddEllipse(105, 110, 35, 40);
e.Graphics.FillEllipse(brushRightOnly, 105, 110, 35, 40);
e.Graphics.DrawEllipse(pen, 105, 110, 35, 40);
brushRightOnly.Dispose();
}
Brush brush = new SolidBrush(Color.Black);
Font stringFont = new Font("Calibri", 9, FontStyle.Bold);
Font stringFontCommon = new Font("Calibri", 8, FontStyle.Bold);
e.Graphics.DrawString(leftValue.ToString(), stringFont, brush, 40, 90);
e.Graphics.DrawString(rightValue.ToString(), stringFont, brush, 160, 90);
e.Graphics.DrawString(leftRightValue.ToString(), stringFontCommon, brush, 70, 115);
e.Graphics.DrawString(rightLeftValue.ToString(), stringFontCommon, brush, 110, 115);
brush.Dispose();
stringFont.Dispose(); stringFontCommon.Dispose();
pen.Dispose();
}
This is to handle the mouse clicks. 这是为了处理鼠标单击。 Basically I want to have a click handled only on left / right parts and not their intersection.
基本上,我只想对左/右部分而不是它们的交点进行单击处理。 But even with this I dont get the message box.
但是即使这样我也没有得到消息框。 Sometimes if I put a break point it does hit messagebox code but sometimes not.
有时,如果我设置了断点,它确实会击中消息框代码,但有时不会。
private void panelControlVennDiagram_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button == System.Windows.Forms.MouseButtons.Left)
{
if (ellipseLeftRightCommonPath.IsVisible(e.Location))
MessageBox.Show("Left - Right Common");
else if (ellipseRightLeftCommonPath.IsVisible(e.Location))
MessageBox.Show("Right - Left Common");
else if (leftOnlyRegion.IsVisible(e.Location))
MessageBox.Show("Left Only");
else if (rightOnlyRegion.IsVisible(e.Location))
MessageBox.Show("Right Only");
}
}
Whats wrong here? 怎么了 Please help.
请帮忙。
我直接使用区域而不是使用GraphicsPath。
leftOnlyRegion = new Region(leftVenn);
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