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FormPreview.cs
130 lines (114 loc) · 3.97 KB
/
FormPreview.cs
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using GS_ActEdit.Format;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
namespace GS_ActEdit
{
partial class FormPreview : Form
{
private Act2DMapLayoutObject layout;
private ActObject file;
private float scale = 0.5f;
public FormPreview(Act2DMapLayoutObject layout, ActObject file)
{
InitializeComponent();
this.layout = layout;
this.file = file;
}
private Point GetCenterOnMap()
{
Size p_ctrl = new Size(pictureBox1.ClientSize.Width / 2, pictureBox1.ClientSize.Height / 2);
p_ctrl -= offset;
return new Point((int)(p_ctrl.Width / scale), (int)(p_ctrl.Height / scale));
}
private void SetScale(float val)
{
Point center = GetCenterOnMap();
center.X = (int)(center.X * val);
center.Y = (int)(center.Y * val);
center.X = pictureBox1.ClientSize.Width / 2 - center.X;
center.Y = pictureBox1.ClientSize.Height / 2 - center.Y;
offset = new Size(center.X, center.Y);
scale = val;
}
private void pictureBox1_Paint(object sender, PaintEventArgs e)
{
var g = e.Graphics;
g.Clear(Color.Black);
g.InterpolationMode = InterpolationMode.NearestNeighbor;
g.PixelOffsetMode = PixelOffsetMode.Half;
Matrix te = new Matrix();
te.Translate(offset.Width, offset.Height);
te.Scale(scale, scale);
//int count = 100;
foreach (var element in layout.elements)
{
g.Transform = te;
DrawElement(g, element);
//if (--count == 0) break;
}
}
private void DrawElement(Graphics g, Act2DMapLayoutObject.Element e)
{
var bitmap = file.CreateBitmapForResource(e.resourceID);
if (bitmap == null) return;
g.TranslateTransform(e.x, e.y);
g.TranslateTransform(bitmap.Width * 0.5f, bitmap.Height * 0.5f);
g.RotateTransform(e.rotate);
g.ScaleTransform(e.scale_x, e.scale_y);
g.TranslateTransform(-bitmap.Width * 0.5f, -bitmap.Height * 0.5f);
g.DrawImage(bitmap, new PointF(0.0f, 0.0f));
}
private void ButtonZoomIn_Click(object sender, EventArgs e)
{
//scale *= 1.2f;
SetScale(scale * 1.2f);
pictureBox1.Refresh();
}
private void ButtonZoomOut_Click(object sender, EventArgs e)
{
//scale /= 1.2f;
SetScale(scale / 1.2f);
pictureBox1.Refresh();
}
private Size offset;
private Size down_offset;
private Size p_down;
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == System.Windows.Forms.MouseButtons.Left)
{
p_down = new Size(e.Location);
down_offset = offset;
pictureBox1.Refresh();
}
}
private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == System.Windows.Forms.MouseButtons.Left)
{
offset = down_offset + new Size(e.Location) - p_down;
pictureBox1.Refresh();
}
}
private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button == System.Windows.Forms.MouseButtons.Left)
{
offset = down_offset + new Size(e.Location) - p_down;
pictureBox1.Refresh();
}
}
private void ButtonRefresh_Click(object sender, EventArgs e)
{
pictureBox1.Refresh();
}
}
}