private void pictureBox_OnMouseUp(object sender, MouseEventArgs e)
{
if (img == null)
{
return;
}
if (e.Button == MouseButtons.Left)
{
if (!SelectedImage)
{
SelectImageRect = GetSelectImageRect(e.Location);
if (!SelectImageRect.IsEmpty)
{
SelectedImage = true;
endPoint_ = e.Location;
bottomRight = e.Location;
}
}
else
{
endPoint_ = e.Location;
Pb_frame_.Invalidate();
if (SizeGrip != SizeGrip.None)
{
selectImageBounds_ = SelectImageRect;
}
}
mouseDown_ = false;
}
}
private void pictureBox_OnMouseDown(object sender, MouseEventArgs e)
{
if (img == null)
{
return;
}
if (e.Button == MouseButtons.Left)
{
if (SelectedImage) //已经圈定
{
if (SizeGrip != SizeGrip.None)
{
mouseDown_ = true;
mouseDownPoint_ = e.Location;
Pb_frame_.Invalidate();
}
}
else
{
mouseDown_ = true;
mouseDownPoint_ = e.Location;
topLeft = e.Location;
}
}
}
public void ToPrePicture()
{
if (img == null)
{
return;
}
if (curPtr == 0)
{
return;
}
--curPtr;
ResetBoxVar();
image_width_ = Pb_frame_.Width / 2;
image_height_ = Pb_frame_.Height / 2;
Pb_frame_.Invalidate();
}
public void ToNextPicture()
{
if (img == null)
{
return;
}
if (curPtr >= img.Count - 1)
{
return;
}
++curPtr;
ResetBoxVar();
image_width_ = Pb_frame_.Width / 2;
image_height_ = Pb_frame_.Height / 2;
Pb_frame_.Invalidate();
}
private void Btn_pre_frame_Click(object sender, EventArgs e)
{
if (img == null)
{
return;
}
if (curPtr == 0)
{
MessageBox.Show("已经是第一张图片");
return;
}
--curPtr;
ResetBoxVar();
image_width_ = Pb_frame_.Width / 2;
image_height_ = Pb_frame_.Height / 2;
Pb_frame_.Invalidate();
}
private void Btn_next_frame_Click(object sender, EventArgs e)
{
if (img == null)
{
return;
}
if (curPtr >= img.Count - 1)
{
MessageBox.Show("已经是最后一张图片");
return;
}
++curPtr;
ResetBoxVar();
image_width_ = Pb_frame_.Width / 2;
image_height_ = Pb_frame_.Height / 2;
Pb_frame_.Invalidate();
Btn_next_frame_.Enabled = false;
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
Pb_frame_.Invalidate();
}
private void SetPictureBoxPicture()
{
image_width_ = Pb_frame_.Width / 2;
image_height_ = Pb_frame_.Height / 2;
Pb_frame_.Invalidate();
}