CODEWITHSUNDEEP
c#panel
Frank gagui
Frank gagui

Reputation: 73

Zoom in a panel c#

Im creating a small map for a cemetery and I want to zoom in and zoom out to the map. So my idea is to resize all the content of the panel which is buttons. My code is here:

  foreach (Control btn in this.panel3.Controls)
        {
            if ((btn) is Button)
            {
                btn.Width += 10;
                btn.Height += 10;
            }
        }

is there any other way to do it? I am not satisfied because it doesn't look like zoom in or a way to may it more like zoom in. Thanks in advance.

Upvotes: 1

Views: 2870

Answers (2)

NineBerry
NineBerry

Reputation: 28499

You can use the Scale method of the Panel to zoom in and out the contents of the panel. 

private void buttonZoomIn_Click(object sender, EventArgs e)
{
    cemetaryPanel.Scale(new SizeF(1.1f, 1.1f));
}

private void buttonZoomOut_Click(object sender, EventArgs e)
{
    cemetaryPanel.Scale(new SizeF(0.9f, 0.9f));
}

Upvotes: 0

florien
florien

Reputation: 506

Your code only zooms in the buttons separately. What you may need is to stretch the whole area of buttons. Something like this (I haven't tested):

foreach (Button btn in panel3.Controls.Where(c => c is Button).Cast<Button>())
{
    const double zoom = 1.1;

    //increase position
    btn.Left = Convert.ToInt32(btn.Left * zoom);
    btn.Top = Convert.ToInt32(btn.Top * zoom);

    //increase size
    btn.Width = Convert.ToInt32(btn.Width * zoom);
    btn.Height = Convert.ToInt32(btn.Height * zoom);
}

Upvotes: 1

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