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Display thumbnails even when Aero is disabled

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This commit is contained in:
Anton Kasyanov
2019-04-29 19:51:47 +03:00
parent cfcc5d085c
commit 687520d2eb
18 changed files with 519 additions and 105 deletions
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153
Eve-O-Preview/View/Implementation/ThumbnailView.cs
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@@ -7,26 +7,25 @@ using EveOPreview.UI.Hotkeys;
namespace EveOPreview.View
{
public partial class ThumbnailView : Form, IThumbnailView
public abstract partial class ThumbnailView : Form, IThumbnailView
{
#region Private constants
private const int RESIZE_EVENT_TIMEOUT = 500;
#endregion
#region Private fields
private readonly IWindowManager _windowManager;
private readonly ThumbnailOverlay _overlay;
private IDwmThumbnail _thumbnail;
// Part of the logic (namely current size / position management)
// was moved to the view due to the performance reasons
private bool _isOverlayVisible;
private bool _isTopMost;
private bool _isHighlightEnabled;
private bool _isHighlightRequested;
private int _highlightWidth;
private bool _isLocationChanged;
private bool _isSizeChanged;
private bool _isCustomMouseModeActive;
private bool _isHighlightEnabled;
private int _highlightWidth;
private DateTime _suppressResizeEventsTimestamp;
private Size _baseZoomSize;
private Point _baseZoomLocation;
@@ -36,29 +35,32 @@ namespace EveOPreview.View
private HotkeyHandler _hotkeyHandler;
#endregion
public ThumbnailView(IWindowManager windowManager)
protected ThumbnailView(IWindowManager windowManager)
{
this.SuppressResizeEvent();
this._windowManager = windowManager;
this.WindowManager = windowManager;
this.IsActive = false;
this.IsOverlayEnabled = false;
this._isOverlayVisible = false;
this._isTopMost = false;
this._isHighlightEnabled = false;
this._isLocationChanged = true;
this._isSizeChanged = true;
this._isCustomMouseModeActive = false;
this._isHighlightEnabled = false;
this._isHighlightRequested = false;
InitializeComponent();
this._overlay = new ThumbnailOverlay(this, this.MouseDown_Handler);
}
protected IWindowManager WindowManager { get; }
public IntPtr Id { get; set; }
public string Title
@@ -131,12 +133,11 @@ namespace EveOPreview.View
base.Hide();
}
public new void Close()
public new virtual void Close()
{
this.SuppressResizeEvent();
this.IsActive = false;
this._thumbnail?.Unregister();
this._overlay.Close();
base.Close();
}
@@ -177,9 +178,6 @@ namespace EveOPreview.View
this.SuppressResizeEvent();
this.FormBorderStyle = style;
// Notify about possible contents position change
this._isSizeChanged = true;
}
public void SetTopMost(bool enableTopmost)
@@ -198,20 +196,20 @@ namespace EveOPreview.View
public void SetHighlight(bool enabled, Color color, int width)
{
if (this._isHighlightEnabled == enabled)
if (this._isHighlightRequested == enabled)
{
return;
}
if (enabled)
{
this._isHighlightEnabled = true;
this._isHighlightRequested = true;
this._highlightWidth = width;
this.BackColor = color;
}
else
{
this._isHighlightEnabled = false;
this._isHighlightRequested = false;
this.BackColor = SystemColors.Control;
}
@@ -305,69 +303,31 @@ namespace EveOPreview.View
public void Refresh(bool forceRefresh)
{
// To prevent flickering the old broken thumbnail is removed AFTER the new shiny one is created
IDwmThumbnail obsoleteThumbnail = forceRefresh ? this._thumbnail : null;
this.RefreshThumbnail(forceRefresh);
this.HighlightThumbnail(forceRefresh || this._isSizeChanged);
this.RefreshOverlay(forceRefresh || this._isSizeChanged || this._isLocationChanged);
if ((this._thumbnail == null) || forceRefresh)
{
this.RegisterThumbnail();
}
bool sizeChanged = this._isSizeChanged || forceRefresh;
bool locationChanged = this._isLocationChanged || forceRefresh;
if (sizeChanged)
{
this.RecalculateThumbnailSize();
this.UpdateThumbnail();
this._isSizeChanged = false;
}
obsoleteThumbnail?.Unregister();
this._overlay.EnableOverlayLabel(this.IsOverlayEnabled);
if (!this._isOverlayVisible)
{
// One-time action to show the Overlay before it is set up
// Otherwise its position won't be set
this._overlay.Show();
this._isOverlayVisible = true;
}
else
{
if (!(sizeChanged || locationChanged))
{
// No need to adjust in the overlay location if it is already visible and properly set
return;
}
}
Size overlaySize = this.ClientSize;
Point overlayLocation = this.Location;
int borderWidth = (this.Size.Width - this.ClientSize.Width) / 2;
overlayLocation.X += borderWidth;
overlayLocation.Y += (this.Size.Height - this.ClientSize.Height) - borderWidth;
this._isLocationChanged = false;
this._overlay.Size = overlaySize;
this._overlay.Location = overlayLocation;
this._overlay.Refresh();
this._isSizeChanged = false;
}
private void RecalculateThumbnailSize()
protected abstract void RefreshThumbnail(bool forceRefresh);
protected abstract void ResizeThumbnail(int baseWidth, int baseHeight, int highlightWidthTop, int highlightWidthRight, int highlightWidthBottom, int highlightWidthLeft);
private void HighlightThumbnail(bool forceRefresh)
{
// This approach would work only for square-shaped thumbnail window
// To get PROPER results we have to do some crazy math
//int delta = this._isHighlightEnabled ? this._highlightWidth : 0;
//this._thumbnail.rcDestination = new RECT(0 + delta, 0 + delta, this.ClientSize.Width - delta, this.ClientSize.Height - delta);
if (!this._isHighlightEnabled)
if (!forceRefresh && (this._isHighlightRequested == this._isHighlightEnabled))
{
//No highlighting enabled, so no odd math required
this._thumbnail.Move(0, 0, this.ClientSize.Width, this.ClientSize.Height);
// Nothing to do here
return;
}
this._isHighlightEnabled = this._isHighlightRequested;
if (!this._isHighlightRequested)
{
//No highlighting enabled, so no math required
this.ResizeThumbnail(this.ClientSize.Width, this.ClientSize.Height, 0, 0, 0, 0);
return;
}
@@ -381,7 +341,38 @@ namespace EveOPreview.View
int highlightWidthLeft = (baseWidth - actualWidth) / 2;
int highlightWidthRight = baseWidth - actualWidth - highlightWidthLeft;
this._thumbnail.Move(0 + highlightWidthLeft, 0 + this._highlightWidth, baseWidth - highlightWidthRight, baseHeight - this._highlightWidth);
this.ResizeThumbnail(this.ClientSize.Width, this.ClientSize.Height, this._highlightWidth, highlightWidthRight, this._highlightWidth, highlightWidthLeft);
}
private void RefreshOverlay(bool forceRefresh)
{
if (this._isOverlayVisible && !forceRefresh)
{
// No need to update anything. Everything is already set up
return;
}
this._overlay.EnableOverlayLabel(this.IsOverlayEnabled);
if (!this._isOverlayVisible)
{
// One-time action to show the Overlay before it is set up
// Otherwise its position won't be set
this._overlay.Show();
this._isOverlayVisible = true;
}
Size overlaySize = this.ClientSize;
Point overlayLocation = this.Location;
int borderWidth = (this.Size.Width - this.ClientSize.Width) / 2;
overlayLocation.X += borderWidth;
overlayLocation.Y += (this.Size.Height - this.ClientSize.Height) - borderWidth;
this._isLocationChanged = false;
this._overlay.Size = overlaySize;
this._overlay.Location = overlayLocation;
this._overlay.Refresh();
}
private void SuppressResizeEvent()
@@ -482,18 +473,6 @@ namespace EveOPreview.View
}
#endregion
#region Thumbnail management
private void RegisterThumbnail()
{
this._thumbnail = this._windowManager.RegisterThumbnail(this.Handle, this.Id);
}
private void UpdateThumbnail()
{
this._thumbnail.Update();
}
#endregion
#region Custom Mouse mode
// This pair of methods saves/restores certain window properties
// Methods are used to remove the 'Zoom' effect (if any) when the