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Add movement and resize capabilities to the Thumbnail windows in borderless mode

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This commit is contained in:
Anton Kasyanov
2016-08-12 22:06:38 +03:00
parent 35e4a9db01
commit ae071a9a1c
6 changed files with 124 additions and 49 deletions
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2
Eve-O-Preview/DwmAPI/DwmApiNativeMethods.cs → Eve-O-Preview/DwmAPI/WindowManagerNativeMethods.cs
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@@ -5,7 +5,7 @@ using System.Drawing;
namespace EveOPreview namespace EveOPreview
{ {
// Desktop Windows Manager APIs // Desktop Windows Manager APIs
static class DwmApiNativeMethods static class WindowManagerNativeMethods
{ {
[DllImport("user32.dll")] [DllImport("user32.dll")]
public static extern IntPtr GetForegroundWindow(); public static extern IntPtr GetForegroundWindow();

2
Eve-O-Preview/Eve-O-Preview.csproj
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@@ -167,7 +167,7 @@
<Compile Include="UI\Implementation\ThumbnailView.Designer.cs"> <Compile Include="UI\Implementation\ThumbnailView.Designer.cs">
<DependentUpon>ThumbnailView.cs</DependentUpon> <DependentUpon>ThumbnailView.cs</DependentUpon>
</Compile> </Compile>
<Compile Include="DwmAPI\DwmApiNativeMethods.cs" /> <Compile Include="DwmAPI\WindowManagerNativeMethods.cs" />
</ItemGroup> </ItemGroup>
<ItemGroup> <ItemGroup>
<None Include="Resources\icon.png" /> <None Include="Resources\icon.png" />

18
Eve-O-Preview/Presentation/ThumbnailManager.cs
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@@ -95,8 +95,8 @@ namespace EveOPreview.UI
public void RefreshThumbnails() public void RefreshThumbnails()
{ {
IntPtr foregroundWindowHandle = DwmApiNativeMethods.GetForegroundWindow(); IntPtr foregroundWindowHandle = WindowManagerNativeMethods.GetForegroundWindow();
Boolean hideAllThumbnails = (this._configuration.HideThumbnailsOnLostFocus && this.IsNonClientWindowActive(foregroundWindowHandle)) || !DwmApiNativeMethods.DwmIsCompositionEnabled(); Boolean hideAllThumbnails = (this._configuration.HideThumbnailsOnLostFocus && this.IsNonClientWindowActive(foregroundWindowHandle)) || !WindowManagerNativeMethods.DwmIsCompositionEnabled();
this.DisableViewEvents(); this.DisableViewEvents();
@@ -184,7 +184,7 @@ namespace EveOPreview.UI
Process[] clientProcesses = ThumbnailManager.GetClientProcesses(); Process[] clientProcesses = ThumbnailManager.GetClientProcesses();
List<IntPtr> processHandles = new List<IntPtr>(clientProcesses.Length); List<IntPtr> processHandles = new List<IntPtr>(clientProcesses.Length);
IntPtr foregroundWindowHandle = DwmApiNativeMethods.GetForegroundWindow(); IntPtr foregroundWindowHandle = WindowManagerNativeMethods.GetForegroundWindow();
List<IThumbnailView> viewsAdded = new List<IThumbnailView>(); List<IThumbnailView> viewsAdded = new List<IThumbnailView>();
List<IThumbnailView> viewsUpdated = new List<IThumbnailView>(); List<IThumbnailView> viewsUpdated = new List<IThumbnailView>();
@@ -316,13 +316,13 @@ namespace EveOPreview.UI
private void ThumbnailActivated(IntPtr id) private void ThumbnailActivated(IntPtr id)
{ {
DwmApiNativeMethods.SetForegroundWindow(id); WindowManagerNativeMethods.SetForegroundWindow(id);
int style = DwmApiNativeMethods.GetWindowLong(id, DwmApiNativeMethods.GWL_STYLE); int style = WindowManagerNativeMethods.GetWindowLong(id, WindowManagerNativeMethods.GWL_STYLE);
// If the window was minimized then its thumbnail should be reset // If the window was minimized then its thumbnail should be reset
if ((style & DwmApiNativeMethods.WS_MINIMIZE) == DwmApiNativeMethods.WS_MINIMIZE) if ((style & WindowManagerNativeMethods.WS_MINIMIZE) == WindowManagerNativeMethods.WS_MINIMIZE)
{ {
DwmApiNativeMethods.ShowWindowAsync(id, DwmApiNativeMethods.SW_SHOWNORMAL); WindowManagerNativeMethods.ShowWindowAsync(id, WindowManagerNativeMethods.SW_SHOWNORMAL);
IThumbnailView view; IThumbnailView view;
if (this._thumbnailViews.TryGetValue(id, out view)) if (this._thumbnailViews.TryGetValue(id, out view))
{ {
@@ -418,7 +418,7 @@ namespace EveOPreview.UI
return; return;
} }
DwmApiNativeMethods.MoveWindow(clientHandle, clientLayout.X, clientLayout.Y, clientLayout.Width, clientLayout.Height, true); WindowManagerNativeMethods.MoveWindow(clientHandle, clientLayout.X, clientLayout.Y, clientLayout.Width, clientLayout.Height, true);
} }
private void UpdateClientLayouts() private void UpdateClientLayouts()
@@ -428,7 +428,7 @@ namespace EveOPreview.UI
foreach (Process process in clientProcesses) foreach (Process process in clientProcesses)
{ {
RECT rect; RECT rect;
DwmApiNativeMethods.GetWindowRect(process.MainWindowHandle, out rect); WindowManagerNativeMethods.GetWindowRect(process.MainWindowHandle, out rect);
int left = Math.Abs(rect.Left); int left = Math.Abs(rect.Left);
int right = Math.Abs(rect.Right); int right = Math.Abs(rect.Right);

2
Eve-O-Preview/UI/Implementation/ThumbnailOverlay.cs
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@@ -32,7 +32,7 @@ namespace EveOPreview.UI
get get
{ {
var Params = base.CreateParams; var Params = base.CreateParams;
Params.ExStyle |= (int)DwmApiNativeMethods.WS_EX_TOOLWINDOW; Params.ExStyle |= (int)WindowManagerNativeMethods.WS_EX_TOOLWINDOW;
return Params; return Params;
} }
} }

8
Eve-O-Preview/UI/Implementation/ThumbnailView.Designer.cs generated
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@@ -33,9 +33,11 @@ namespace EveOPreview.UI
this.ShowInTaskbar = false; this.ShowInTaskbar = false;
this.Text = "Preview"; this.Text = "Preview";
this.TopMost = true; this.TopMost = true;
this.MouseLeave += new System.EventHandler(this.LostFocus_Handler); this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.MouseDown_Handler);
this.MouseHover += new System.EventHandler(this.Focused_Handler); this.MouseLeave += new System.EventHandler(this.MouseLeave_Handler);
this.MouseUp += new System.Windows.Forms.MouseEventHandler(this.ThumbnailActivated_Handler); this.MouseEnter += new System.EventHandler(this.MouseEnter_Handler);
this.MouseMove += new System.Windows.Forms.MouseEventHandler(this.MouseMove_Handler);
this.MouseUp += new System.Windows.Forms.MouseEventHandler(this.MouseUp_Handler);
this.Move += new System.EventHandler(this.Move_Handler); this.Move += new System.EventHandler(this.Move_Handler);
this.Resize += new System.EventHandler(this.Resize_Handler); this.Resize += new System.EventHandler(this.Resize_Handler);
this.ResumeLayout(false); this.ResumeLayout(false);

141
Eve-O-Preview/UI/Implementation/ThumbnailView.cs
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@@ -8,22 +8,24 @@ namespace EveOPreview.UI
public partial class ThumbnailView : Form, IThumbnailView public partial class ThumbnailView : Form, IThumbnailView
{ {
#region Private fields #region Private fields
//private readonly IThumbnailManager _manager;
private readonly ThumbnailOverlay _overlay; private readonly ThumbnailOverlay _overlay;
// This is pure brainless View // Part of the logic (namely current size / position management)
// Just somewhat more complex than usual // was moved to the view due to the performance reasons
private bool _isThumbnailSetUp; private bool _isThumbnailSetUp;
private bool _isOverlayVisible; private bool _isOverlayVisible;
private bool _isTopMost; private bool _isTopMost;
private bool _isPositionChanged; private bool _isPositionChanged;
private bool _isSizeChanged; private bool _isSizeChanged;
private bool _isCustomMouseModeActive;
private DateTime _suppressResizeEventsTimestamp; private DateTime _suppressResizeEventsTimestamp;
private DWM_THUMBNAIL_PROPERTIES _thumbnail; private DWM_THUMBNAIL_PROPERTIES _thumbnail;
private IntPtr _thumbnailHandle; private IntPtr _thumbnailHandle;
private Size _baseSize; private Size _baseZoomSize;
private Point _baseLocation; private Point _baseZoomLocation;
private Point _baseMousePosition;
private Size _baseZoomMaximumSize;
private HotkeyHandler _hotkeyHandler; private HotkeyHandler _hotkeyHandler;
#endregion #endregion
@@ -39,12 +41,13 @@ namespace EveOPreview.UI
this._isPositionChanged = true; this._isPositionChanged = true;
this._isSizeChanged = true; this._isSizeChanged = true;
this._isCustomMouseModeActive = false;
this._suppressResizeEventsTimestamp = DateTime.UtcNow; this._suppressResizeEventsTimestamp = DateTime.UtcNow;
InitializeComponent(); InitializeComponent();
this._overlay = new ThumbnailOverlay(this, this.ThumbnailActivated_Handler); this._overlay = new ThumbnailOverlay(this, this.MouseDown_Handler);
} }
public IntPtr Id { get; set; } public IntPtr Id { get; set; }
@@ -153,10 +156,18 @@ namespace EveOPreview.UI
public void SetFrames(bool enable) public void SetFrames(bool enable)
{ {
FormBorderStyle style = enable ? FormBorderStyle.SizableToolWindow : FormBorderStyle.None;
// No need to change the borders style if it is ALREADY correct
if (this.FormBorderStyle == style)
{
return;
}
// Fix for WinForms issue with the Resize event being fired with inconsistent ClientSize value // Fix for WinForms issue with the Resize event being fired with inconsistent ClientSize value
// Any Resize events fired before this timestamp will be ignored // Any Resize events fired before this timestamp will be ignored
this._suppressResizeEventsTimestamp = DateTime.UtcNow.AddMilliseconds(450); this._suppressResizeEventsTimestamp = DateTime.UtcNow.AddMilliseconds(450);
this.FormBorderStyle = enable ? FormBorderStyle.SizableToolWindow : FormBorderStyle.None; this.FormBorderStyle = style;
// Notify about possible contents position change // Notify about possible contents position change
this._isSizeChanged = true; this._isSizeChanged = true;
@@ -178,11 +189,8 @@ namespace EveOPreview.UI
public void ZoomIn(ViewZoomAnchor anchor, int zoomFactor) public void ZoomIn(ViewZoomAnchor anchor, int zoomFactor)
{ {
this._baseSize = this.Size; int oldWidth = this._baseZoomSize.Width;
this._baseLocation = this.Location; int oldHeight = this._baseZoomSize.Height;
int oldWidth = this._baseSize.Width;
int oldHeight = this._baseSize.Height;
int locationX = this.Location.X; int locationX = this.Location.X;
int locationY = this.Location.Y; int locationY = this.Location.Y;
@@ -193,6 +201,7 @@ namespace EveOPreview.UI
// First change size, THEN move the window // First change size, THEN move the window
// Otherwise there is a chance to fail in a loop // Otherwise there is a chance to fail in a loop
// Zoom requied -> Moved the windows 1st -> Focus is lost -> Window is moved back -> Focus is back on -> Zoom required -> ... // Zoom requied -> Moved the windows 1st -> Focus is lost -> Window is moved back -> Focus is back on -> Zoom required -> ...
this.MaximumSize = new Size(0, 0);
this.Size = new Size(newWidth, newHeight); this.Size = new Size(newWidth, newHeight);
switch (anchor) switch (anchor)
@@ -217,7 +226,7 @@ namespace EveOPreview.UI
break; break;
case ViewZoomAnchor.SW: case ViewZoomAnchor.SW:
this.Location = new Point(locationX, locationY - newHeight + this._baseSize.Height); this.Location = new Point(locationX, locationY - newHeight + this._baseZoomSize.Height);
break; break;
case ViewZoomAnchor.S: case ViewZoomAnchor.S:
this.Location = new Point(locationX - newWidth / 2 + oldWidth / 2, locationY - newHeight + oldHeight); this.Location = new Point(locationX - newWidth / 2 + oldWidth / 2, locationY - newHeight + oldHeight);
@@ -230,8 +239,7 @@ namespace EveOPreview.UI
public void ZoomOut() public void ZoomOut()
{ {
this.Size = this._baseSize; this.RestoreWindowSizeAndLocation();
this.Location = this._baseLocation;
} }
public void RegisterHotkey(Keys hotkey) public void RegisterHotkey(Keys hotkey)
@@ -257,7 +265,6 @@ namespace EveOPreview.UI
// There can be a lot of possible exception reasons here // There can be a lot of possible exception reasons here
// In case of any of them the hotkey setting is silently ignored // In case of any of them the hotkey setting is silently ignored
} }
} }
public void UnregisterHotkey() public void UnregisterHotkey()
@@ -291,7 +298,7 @@ namespace EveOPreview.UI
this._thumbnail.rcDestination = new RECT(0, 0, this.ClientSize.Width, this.ClientSize.Height); this._thumbnail.rcDestination = new RECT(0, 0, this.ClientSize.Width, this.ClientSize.Height);
try try
{ {
DwmApiNativeMethods.DwmUpdateThumbnailProperties(this._thumbnailHandle, this._thumbnail); WindowManagerNativeMethods.DwmUpdateThumbnailProperties(this._thumbnailHandle, this._thumbnail);
} }
catch (ArgumentException) catch (ArgumentException)
{ {
@@ -347,7 +354,7 @@ namespace EveOPreview.UI
get get
{ {
var Params = base.CreateParams; var Params = base.CreateParams;
Params.ExStyle |= (int)DwmApiNativeMethods.WS_EX_TOOLWINDOW; Params.ExStyle |= (int)WindowManagerNativeMethods.WS_EX_TOOLWINDOW;
return Params; return Params;
} }
} }
@@ -370,34 +377,46 @@ namespace EveOPreview.UI
this.ThumbnailResized?.Invoke(this.Id); this.ThumbnailResized?.Invoke(this.Id);
} }
private void Focused_Handler(object sender, EventArgs e) private void MouseEnter_Handler(object sender, EventArgs e)
{ {
this.ExitCustomMouseMode();
this.SaveWindowSizeAndLocation();
this.ThumbnailFocused?.Invoke(this.Id); this.ThumbnailFocused?.Invoke(this.Id);
} }
private void LostFocus_Handler(object sender, EventArgs e) private void MouseLeave_Handler(object sender, EventArgs e)
{ {
this.ThumbnailLostFocus?.Invoke(this.Id); this.ThumbnailLostFocus?.Invoke(this.Id);
} }
private void ThumbnailActivated_Handler(object sender, MouseEventArgs e) private void MouseDown_Handler(object sender, MouseEventArgs e)
{ {
if (e.Button == MouseButtons.Left) if (e.Button == MouseButtons.Left)
{ {
this.ThumbnailActivated?.Invoke(this.Id); this.ThumbnailActivated?.Invoke(this.Id);
} }
//if (e.Button == MouseButtons.Right) if ((e.Button == MouseButtons.Right) || (e.Button == (MouseButtons.Left | MouseButtons.Right)))
//{ {
// // do smth cool? this.EnterCustomMouseMode();
//} }
}
//if (e.Button == MouseButtons.Middle) private void MouseMove_Handler(object sender, MouseEventArgs e)
//{ {
//// Trigger full thumbnail refresh if (this._isCustomMouseModeActive)
//this.UnregisterThumbnail(); {
//this.Refresh(); this.ProcessCustomMouseMode(e.Button.HasFlag(MouseButtons.Left), e.Button.HasFlag(MouseButtons.Right));
//} }
}
private void MouseUp_Handler(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
this.ExitCustomMouseMode();
}
} }
private void HotkeyPressed_Handler(object sender, HandledEventArgs e) private void HotkeyPressed_Handler(object sender, HandledEventArgs e)
@@ -408,9 +427,29 @@ namespace EveOPreview.UI
} }
#endregion #endregion
// This pair of methods saves/restores certain window propeties
// Methods are used to remove the 'Zoom' effect (if any) when the
// custom resize/move mode is activated
// Methods are kept on this level because moving to the presenter
// the code that responds to the mouse events like movement
// seems like a huge overkill
private void SaveWindowSizeAndLocation()
{
this._baseZoomSize = this.Size;
this._baseZoomLocation = this.Location;
this._baseZoomMaximumSize = this.MaximumSize;
}
private void RestoreWindowSizeAndLocation()
{
this.Size = this._baseZoomSize;
this.MaximumSize = this._baseZoomMaximumSize;
this.Location = this._baseZoomLocation;
}
private void RegisterThumbnail() private void RegisterThumbnail()
{ {
this._thumbnailHandle = DwmApiNativeMethods.DwmRegisterThumbnail(this.Handle, this.Id); this._thumbnailHandle = WindowManagerNativeMethods.DwmRegisterThumbnail(this.Handle, this.Id);
this._thumbnail = new DWM_THUMBNAIL_PROPERTIES(); this._thumbnail = new DWM_THUMBNAIL_PROPERTIES();
this._thumbnail.dwFlags = DWM_TNP_CONSTANTS.DWM_TNP_VISIBLE this._thumbnail.dwFlags = DWM_TNP_CONSTANTS.DWM_TNP_VISIBLE
@@ -428,11 +467,45 @@ namespace EveOPreview.UI
{ {
try try
{ {
DwmApiNativeMethods.DwmUnregisterThumbnail(thumbnailHandle); WindowManagerNativeMethods.DwmUnregisterThumbnail(thumbnailHandle);
} }
catch (ArgumentException) catch (ArgumentException)
{ {
} }
} }
private void EnterCustomMouseMode()
{
this.RestoreWindowSizeAndLocation();
this._isCustomMouseModeActive = true;
this._baseMousePosition = Control.MousePosition;
}
private void ProcessCustomMouseMode(bool leftButton, bool rightButton)
{
Point mousePosition = Control.MousePosition;
int offsetX = mousePosition.X - this._baseMousePosition.X;
int offsetY = mousePosition.Y - this._baseMousePosition.Y;
this._baseMousePosition = mousePosition;
// Left + Right buttons trigger thumbnail resize
// Right button only trigger thumbnail movement
if (leftButton && rightButton)
{
this.Size = new Size(this.Size.Width + offsetX, this.Size.Height + offsetY);
this._baseZoomSize = this.Size;
}
else
{
this.Location = new Point(this.Location.X + offsetX, this.Location.Y + offsetY);
this._baseZoomLocation = this.Location;
}
}
private void ExitCustomMouseMode()
{
this._isCustomMouseModeActive = false;
}
} }
} }