mirror of
https://github.com/ShareX/ShareX.git
synced 2024-10-06 05:05:42 +13:00
403 lines
No EOL
13 KiB
C#
403 lines
No EOL
13 KiB
C#
#region License Information (GPL v3)
|
||
|
||
/*
|
||
ShareX - A program that allows you to take screenshots and share any file type
|
||
Copyright (c) 2007-2023 ShareX Team
|
||
|
||
This program is free software; you can redistribute it and/or
|
||
modify it under the terms of the GNU General Public License
|
||
as published by the Free Software Foundation; either version 2
|
||
of the License, or (at your option) any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||
|
||
Optionally you can also view the license at <http://www.gnu.org/licenses/>.
|
||
*/
|
||
|
||
#endregion License Information (GPL v3)
|
||
|
||
using ShareX.HelpersLib.Properties;
|
||
using System;
|
||
using System.Collections.Generic;
|
||
using System.Drawing;
|
||
using System.Windows.Forms;
|
||
|
||
namespace ShareX.HelpersLib
|
||
{
|
||
public class ImageViewer : Form
|
||
{
|
||
public Image CurrentImage { get; private set; }
|
||
public string CurrentImageFilePath { get; private set; }
|
||
public bool SupportWrap { get; set; }
|
||
public bool CanNavigate => Images != null && Images.Length > 1;
|
||
public bool CanNavigateLeft => CanNavigate && (SupportWrap || CurrentImageIndex > 0);
|
||
public bool CanNavigateRight => CanNavigate && (SupportWrap || CurrentImageIndex < Images.Length - 1);
|
||
public string[] Images { get; private set; }
|
||
public int CurrentImageIndex { get; private set; }
|
||
public int NavigationButtonWidth { get; set; } = 100;
|
||
public string Status { get; private set; }
|
||
|
||
private ImageViewer(Image img)
|
||
{
|
||
InitializeComponent();
|
||
ShareXResources.ApplyTheme(this);
|
||
|
||
LoadImage(img);
|
||
}
|
||
|
||
private ImageViewer(string[] images, int currentImageIndex = 0)
|
||
{
|
||
InitializeComponent();
|
||
ShareXResources.ApplyTheme(this);
|
||
|
||
Images = images;
|
||
CurrentImageIndex = currentImageIndex;
|
||
FilterImageFiles();
|
||
LoadCurrentImage();
|
||
}
|
||
|
||
private void LoadImage(Image img)
|
||
{
|
||
CurrentImage?.Dispose();
|
||
CurrentImage = img;
|
||
pbPreview.LoadImage(CurrentImage);
|
||
}
|
||
|
||
private void LoadCurrentImage()
|
||
{
|
||
if (Images != null && Images.Length > 0)
|
||
{
|
||
CurrentImageIndex = CurrentImageIndex.Clamp(0, Images.Length - 1);
|
||
CurrentImageFilePath = Images[CurrentImageIndex];
|
||
Image img = ImageHelpers.LoadImage(CurrentImageFilePath);
|
||
LoadImage(img);
|
||
}
|
||
|
||
UpdateStatus();
|
||
}
|
||
|
||
private void NavigateImage(int position)
|
||
{
|
||
if (CanNavigate)
|
||
{
|
||
int nextImageIndex = CurrentImageIndex + position;
|
||
|
||
if (SupportWrap)
|
||
{
|
||
if (nextImageIndex > Images.Length - 1)
|
||
{
|
||
nextImageIndex = 0;
|
||
}
|
||
else if (nextImageIndex < 0)
|
||
{
|
||
nextImageIndex = Images.Length - 1;
|
||
}
|
||
}
|
||
|
||
nextImageIndex = nextImageIndex.Clamp(0, Images.Length - 1);
|
||
|
||
if (CurrentImageIndex != nextImageIndex)
|
||
{
|
||
CurrentImageIndex = nextImageIndex;
|
||
LoadCurrentImage();
|
||
}
|
||
}
|
||
}
|
||
|
||
private void FilterImageFiles()
|
||
{
|
||
List<string> filteredImages = new List<string>();
|
||
|
||
for (int i = 0; i < Images.Length; i++)
|
||
{
|
||
string imageFilePath = Images[i];
|
||
|
||
bool isImageFile = !string.IsNullOrEmpty(imageFilePath) && FileHelpers.IsImageFile(imageFilePath);
|
||
|
||
if (i == CurrentImageIndex)
|
||
{
|
||
if (isImageFile)
|
||
{
|
||
CurrentImageIndex = filteredImages.Count;
|
||
}
|
||
else
|
||
{
|
||
CurrentImageIndex = Math.Max(filteredImages.Count - 1, 0);
|
||
}
|
||
}
|
||
|
||
if (isImageFile)
|
||
{
|
||
filteredImages.Add(imageFilePath);
|
||
}
|
||
}
|
||
|
||
Images = filteredImages.ToArray();
|
||
}
|
||
|
||
private void UpdateStatus()
|
||
{
|
||
Status = "";
|
||
|
||
if (CanNavigate)
|
||
{
|
||
AppendStatus($"{CurrentImageIndex + 1} / {Images.Length}");
|
||
}
|
||
|
||
string fileName = FileHelpers.GetFileNameSafe(CurrentImageFilePath);
|
||
|
||
if (!string.IsNullOrEmpty(fileName))
|
||
{
|
||
fileName = fileName.Truncate(128, "...");
|
||
AppendStatus(fileName);
|
||
}
|
||
|
||
if (CurrentImage != null)
|
||
{
|
||
AppendStatus($"{CurrentImage.Width} x {CurrentImage.Height}");
|
||
}
|
||
|
||
lblStatus.Visible = !string.IsNullOrEmpty(Status);
|
||
lblStatus.Text = Status;
|
||
lblStatus.Location = new Point((ClientSize.Width - lblStatus.Width) / 2, 0);
|
||
}
|
||
|
||
private void AppendStatus(string text)
|
||
{
|
||
if (!string.IsNullOrEmpty(Status))
|
||
{
|
||
Status += " │ ";
|
||
}
|
||
|
||
Status += text;
|
||
}
|
||
|
||
public static void ShowImage(Image img)
|
||
{
|
||
if (img != null)
|
||
{
|
||
using (Image tempImage = img.CloneSafe())
|
||
{
|
||
if (tempImage != null)
|
||
{
|
||
using (ImageViewer viewer = new ImageViewer(tempImage))
|
||
{
|
||
viewer.ShowDialog();
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
public static void ShowImage(string filePath)
|
||
{
|
||
using (Bitmap bmp = ImageHelpers.LoadImage(filePath))
|
||
{
|
||
if (bmp != null)
|
||
{
|
||
using (ImageViewer viewer = new ImageViewer(bmp))
|
||
{
|
||
viewer.ShowDialog();
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
public static void ShowImage(string[] files, int imageIndex = 0)
|
||
{
|
||
if (files != null && files.Length > 0)
|
||
{
|
||
using (ImageViewer viewer = new ImageViewer(files, imageIndex))
|
||
{
|
||
viewer.ShowDialog();
|
||
}
|
||
}
|
||
}
|
||
|
||
private void ImageViewer_Shown(object sender, EventArgs e)
|
||
{
|
||
UpdateStatus();
|
||
|
||
this.ForceActivate();
|
||
}
|
||
|
||
private void ImageViewer_Deactivate(object sender, EventArgs e)
|
||
{
|
||
Close();
|
||
}
|
||
|
||
private void lblLeft_MouseDown(object sender, MouseEventArgs e)
|
||
{
|
||
if (e.Button == MouseButtons.Left)
|
||
{
|
||
NavigateImage(-1);
|
||
lblLeft.Visible = CanNavigateLeft;
|
||
}
|
||
}
|
||
|
||
private void lblRight_MouseDown(object sender, MouseEventArgs e)
|
||
{
|
||
if (e.Button == MouseButtons.Left)
|
||
{
|
||
NavigateImage(1);
|
||
lblRight.Visible = CanNavigateRight;
|
||
}
|
||
}
|
||
|
||
private void pbPreview_MouseClick(object sender, MouseEventArgs e)
|
||
{
|
||
Close();
|
||
}
|
||
|
||
private void pbPreview_MouseMove(object sender, MouseEventArgs e)
|
||
{
|
||
lblStatus.Visible = !string.IsNullOrEmpty(Status) && !new Rectangle(lblStatus.Location, lblStatus.Size).Contains(e.Location);
|
||
lblLeft.Visible = CanNavigateLeft && new Rectangle(lblLeft.Location, lblLeft.Size).Contains(e.Location);
|
||
lblRight.Visible = CanNavigateRight && new Rectangle(lblRight.Location, lblRight.Size).Contains(e.Location);
|
||
}
|
||
|
||
private void pbPreview_MouseWheel(object sender, MouseEventArgs e)
|
||
{
|
||
if (CanNavigateLeft && e.Delta > 0)
|
||
{
|
||
NavigateImage(-1);
|
||
}
|
||
else if (CanNavigateRight && e.Delta < 0)
|
||
{
|
||
NavigateImage(1);
|
||
}
|
||
}
|
||
|
||
private void pbPreview_KeyDown(object sender, KeyEventArgs e)
|
||
{
|
||
switch (e.KeyCode)
|
||
{
|
||
case Keys.Left:
|
||
NavigateImage(-1);
|
||
break;
|
||
case Keys.Right:
|
||
NavigateImage(1);
|
||
break;
|
||
}
|
||
}
|
||
|
||
private void pbPreview_KeyUp(object sender, KeyEventArgs e)
|
||
{
|
||
switch (e.KeyCode)
|
||
{
|
||
case Keys.Escape:
|
||
case Keys.Enter:
|
||
case Keys.Space:
|
||
Close();
|
||
break;
|
||
}
|
||
}
|
||
|
||
private void pbPreview_PreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
|
||
{
|
||
switch (e.KeyCode)
|
||
{
|
||
case Keys.Left:
|
||
case Keys.Right:
|
||
e.IsInputKey = true;
|
||
break;
|
||
}
|
||
}
|
||
|
||
private void lblStatus_MouseEnter(object sender, EventArgs e)
|
||
{
|
||
lblStatus.Visible = false;
|
||
}
|
||
|
||
#region Windows Form Designer generated code
|
||
|
||
private System.ComponentModel.IContainer components = null;
|
||
|
||
protected override void Dispose(bool disposing)
|
||
{
|
||
if (disposing && (components != null))
|
||
{
|
||
components.Dispose();
|
||
}
|
||
|
||
CurrentImage?.Dispose();
|
||
|
||
base.Dispose(disposing);
|
||
}
|
||
|
||
private void InitializeComponent()
|
||
{
|
||
pbPreview = new MyPictureBox();
|
||
lblStatus = new Label();
|
||
lblLeft = new Label();
|
||
lblRight = new Label();
|
||
SuspendLayout();
|
||
|
||
BackColor = SystemColors.Window;
|
||
Bounds = CaptureHelpers.GetActiveScreenBounds();
|
||
DoubleBuffered = true;
|
||
FormBorderStyle = FormBorderStyle.None;
|
||
Text = Resources.ShareXImageViewer;
|
||
TopMost = true;
|
||
WindowState = FormWindowState.Normal;
|
||
StartPosition = FormStartPosition.Manual;
|
||
|
||
lblStatus.AutoSize = true;
|
||
lblStatus.Font = new Font("Arial", 13f);
|
||
lblStatus.Padding = new Padding(5);
|
||
lblStatus.TextAlign = ContentAlignment.MiddleCenter;
|
||
Controls.Add(lblStatus);
|
||
|
||
lblLeft.Cursor = Cursors.Hand;
|
||
lblLeft.Font = new Font("Arial", 50f, FontStyle.Bold);
|
||
lblLeft.Location = new Point(0, 0);
|
||
lblLeft.Text = "‹";
|
||
lblLeft.TextAlign = ContentAlignment.MiddleCenter;
|
||
lblLeft.Size = new Size(NavigationButtonWidth, Bounds.Height);
|
||
lblLeft.MouseDown += lblLeft_MouseDown;
|
||
Controls.Add(lblLeft);
|
||
|
||
lblRight.Cursor = Cursors.Hand;
|
||
lblRight.Font = new Font("Arial", 50f, FontStyle.Bold);
|
||
lblRight.Location = new Point(Bounds.Width - NavigationButtonWidth, 0);
|
||
lblRight.Text = "›";
|
||
lblRight.TextAlign = ContentAlignment.MiddleCenter;
|
||
lblRight.Size = new Size(NavigationButtonWidth, Bounds.Height);
|
||
lblRight.MouseDown += lblRight_MouseDown;
|
||
Controls.Add(lblRight);
|
||
|
||
pbPreview.Dock = DockStyle.Fill;
|
||
pbPreview.DrawCheckeredBackground = true;
|
||
pbPreview.Location = new Point(0, 0);
|
||
pbPreview.Size = new Size(100, 100);
|
||
pbPreview.TabIndex = 0;
|
||
Controls.Add(pbPreview);
|
||
|
||
Shown += ImageViewer_Shown;
|
||
Deactivate += ImageViewer_Deactivate;
|
||
pbPreview.MouseClick += pbPreview_MouseClick;
|
||
pbPreview.MouseMove += pbPreview_MouseMove;
|
||
pbPreview.MouseWheel += pbPreview_MouseWheel;
|
||
pbPreview.KeyDown += pbPreview_KeyDown;
|
||
pbPreview.KeyUp += pbPreview_KeyUp;
|
||
pbPreview.PreviewKeyDown += pbPreview_PreviewKeyDown;
|
||
lblStatus.MouseEnter += lblStatus_MouseEnter;
|
||
|
||
ResumeLayout(false);
|
||
}
|
||
|
||
private MyPictureBox pbPreview;
|
||
private Label lblStatus;
|
||
private Label lblLeft;
|
||
private Label lblRight;
|
||
|
||
#endregion Windows Form Designer generated code
|
||
}
|
||
} |