309 lines
10 KiB
C#
309 lines
10 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Text;
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using System.Windows.Forms;
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using System.Runtime.InteropServices;
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using System.Diagnostics;
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namespace PreviewToy
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{
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public partial class Preview : Form
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{
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public bool show_overlay = true;
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public bool hover_zoom = true;
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public bool is_zoomed = false;
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public bool is_hovered_over = false;
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private bool mouse_over_lock = false;
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private Size old_size;
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private Point old_position;
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private IntPtr m_hThumbnail;
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public IntPtr sourceWindow;
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private DwmApi.DWM_THUMBNAIL_PROPERTIES m_ThumbnailProperties;
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private bool has_been_set_up = false;
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private bool thumbnail_has_been_set_up = false;
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private PreviewToyHandler spawner;
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private bool hide = false;
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public PreviewOverlay overlay;
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public void MakeHidden(bool wha)
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{
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hide = wha;
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}
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public override string ToString()
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{
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return this.Text;
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}
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public void MakeTopMost(bool topmost)
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{
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this.TopMost = topmost && !(this.hide);
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}
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public Preview(IntPtr sourceWindow, String title, PreviewToyHandler spawner, Size size)
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{
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has_been_set_up = false;
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this.sourceWindow = sourceWindow;
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this.spawner = spawner;
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InitializeComponent();
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this.Text = title;
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this.overlay = new PreviewOverlay(this);
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this.render_area.MouseHover += new System.EventHandler(this.preview_MouseHover);
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this.render_area.MouseLeave += new System.EventHandler(this.preview_MouseLeave);
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this.old_size = this.Size;
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this.old_position = this.Location;
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has_been_set_up = true;
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}
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public void preview_MouseHover(object sender, System.EventArgs e)
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{
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if (!mouse_over_lock)
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{
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mouse_over_lock = true;
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if (hover_zoom)
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doZoom();
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TopMost = true;
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overlay.TopMost = true;
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}
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this.Opacity = 1.0f;
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this.is_hovered_over = true;
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RefreshPreview();
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}
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public void doZoom()
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{
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if (is_zoomed)
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return;
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is_zoomed = true;
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float hover_zoom_factor = Properties.Settings.Default.zoom_amount;
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old_size = Size;
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old_position = Location;
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Size = new Size((int)(hover_zoom_factor * (float)Size.Width), (int)(hover_zoom_factor * (float)Size.Height));
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switch ((PreviewToyHandler.zoom_anchor_t)Properties.Settings.Default.zoom_anchor)
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{
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case (PreviewToyHandler.zoom_anchor_t.NW):
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break;
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case (PreviewToyHandler.zoom_anchor_t.N):
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Location = new Point(Location.X - Size.Width / 2 + old_size.Width / 2, Location.Y);
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break;
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case (PreviewToyHandler.zoom_anchor_t.NE):
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Location = new Point(Location.X - Size.Width + old_size.Width, Location.Y);
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break;
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case (PreviewToyHandler.zoom_anchor_t.W):
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Location = new Point(Location.X, Location.Y - Size.Height / 2 + old_size.Height / 2);
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break;
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case (PreviewToyHandler.zoom_anchor_t.C):
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Location = new Point(Location.X - Size.Width / 2 + old_size.Width / 2, Location.Y - Size.Height / 2 + old_size.Height / 2);
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break;
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case (PreviewToyHandler.zoom_anchor_t.E):
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Location = new Point(Location.X - Size.Width + old_size.Width, Location.Y - Size.Height / 2 + old_size.Height / 2);
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break;
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case (PreviewToyHandler.zoom_anchor_t.SW):
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Location = new Point(Location.X, Location.Y - Size.Height + old_size.Height);
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break;
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case (PreviewToyHandler.zoom_anchor_t.S):
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Location = new Point(Location.X - Size.Width / 2 + old_size.Width / 2, Location.Y - Size.Height + old_size.Height);
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break;
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case (PreviewToyHandler.zoom_anchor_t.SE):
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Location = new Point(Location.X - Size.Width + old_size.Width, Location.Y - Size.Height + old_size.Height);
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break;
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}
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}
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public void restoreZoom()
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{
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if (!is_zoomed)
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return;
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Size = old_size;
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Location = old_position;
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is_zoomed = false;
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}
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public void preview_MouseLeave(object sender, System.EventArgs e)
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{
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if (mouse_over_lock)
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{
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if (hover_zoom)
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{
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restoreZoom();
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}
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mouse_over_lock = false;
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}
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this.is_hovered_over = false;
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this.Opacity = Properties.Settings.Default.opacity;
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RefreshPreview();
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}
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protected override void OnResize(EventArgs e)
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{
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RefreshPreview();
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base.OnResize(e);
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if (has_been_set_up && !mouse_over_lock)
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this.spawner.syncronize_preview_size(this.Size);
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}
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protected override void OnMove(EventArgs e)
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{
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base.OnMove(e);
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if (has_been_set_up && !mouse_over_lock)
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this.spawner.register_preview_position(this.Text, this.Location);
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RefreshPreview();
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}
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public void doMove(Point position)
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{
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if (has_been_set_up && !mouse_over_lock)
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Location = position;
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RefreshPreview();
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}
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public void SetLabel(String label)
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{
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this.Text = label;
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this.overlay.client_label.Text = label;
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}
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public void RefreshPreview()
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{
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if (has_been_set_up)
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{
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if (DwmApi.DwmIsCompositionEnabled())
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{
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if (thumbnail_has_been_set_up == false)
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{
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this.SetUpThumbnail();
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}
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m_ThumbnailProperties.rcDestination = new DwmApi.RECT(0, 0, ClientRectangle.Right, ClientRectangle.Bottom);
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DwmApi.DwmUpdateThumbnailProperties(m_hThumbnail, m_ThumbnailProperties);
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}
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else
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{
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thumbnail_has_been_set_up = false;
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}
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Size overlay_size = this.render_area.Size;
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overlay_size.Width -= 2 * 5;
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overlay_size.Height -= 2 * 5;
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Point overlay_location = this.Location;
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overlay_location.X += 5 + (this.Size.Width - this.render_area.Size.Width) / 2;
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overlay_location.Y += 5 + (this.Size.Height - this.render_area.Size.Height) - (this.Size.Width - this.render_area.Size.Width) / 2;
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this.overlay.Size = overlay_size;
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this.overlay.Location = overlay_location;
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}
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}
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new public void Show()
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{
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if (!hide)
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{
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base.Show();
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if (show_overlay)
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this.overlay.Show();
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else
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this.overlay.Hide();
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}
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else
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{
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this.Hide();
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this.overlay.Hide();
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}
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}
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new public void Hide()
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{
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base.Hide();
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this.overlay.Hide();
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}
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private void SetUpThumbnail()
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{
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if (DwmApi.DwmIsCompositionEnabled() && !thumbnail_has_been_set_up)
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{
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m_hThumbnail = DwmApi.DwmRegisterThumbnail(this.Handle, sourceWindow);
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m_ThumbnailProperties = new DwmApi.DWM_THUMBNAIL_PROPERTIES();
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m_ThumbnailProperties.dwFlags = DwmApi.DWM_THUMBNAIL_PROPERTIES.DWM_TNP_VISIBLE
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+ DwmApi.DWM_THUMBNAIL_PROPERTIES.DWM_TNP_OPACITY
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+ DwmApi.DWM_THUMBNAIL_PROPERTIES.DWM_TNP_RECTDESTINATION
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+ DwmApi.DWM_THUMBNAIL_PROPERTIES.DWM_TNP_SOURCECLIENTAREAONLY;
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m_ThumbnailProperties.opacity = 255;
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m_ThumbnailProperties.fVisible = true;
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m_ThumbnailProperties.fSourceClientAreaOnly = true;
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m_ThumbnailProperties.rcDestination = new DwmApi.RECT(0, 0, ClientRectangle.Right, ClientRectangle.Bottom);
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DwmApi.DwmUpdateThumbnailProperties(m_hThumbnail, m_ThumbnailProperties);
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thumbnail_has_been_set_up = true;
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}
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}
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private void Preview_Load(object sender, EventArgs e)
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{
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}
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public void bring_client_to_foreground()
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{
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DwmApi.SetForegroundWindow(sourceWindow);
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int style = DwmApi.GetWindowLong(sourceWindow, DwmApi.GWL_STYLE);
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if ((style & DwmApi.WS_MAXIMIZE) == DwmApi.WS_MAXIMIZE)
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{
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//It's maximized
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}
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else if ((style & DwmApi.WS_MINIMIZE) == DwmApi.WS_MINIMIZE)
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{
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DwmApi.ShowWindowAsync(sourceWindow, DwmApi.SW_SHOWNORMAL);
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}
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}
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public void render_area_Click(object sender, MouseEventArgs e)
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{
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if (e.Button == MouseButtons.Left)
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{
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bring_client_to_foreground();
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spawner.preview_did_switch();
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}
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if (e.Button == MouseButtons.Right)
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{
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// do smth cool?
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}
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if (e.Button == MouseButtons.Middle)
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{
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// do smth cool?
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}
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}
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public void set_render_area_size(Size size)
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{
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this.Size = size;
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}
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}
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} |