mirror of
https://github.com/greenshot/greenshot.git
synced 2025-01-09 23:33:02 -08:00
244 lines
9.3 KiB
C#
244 lines
9.3 KiB
C#
/*
|
|
* Greenshot - a free and open source screenshot tool
|
|
* Copyright (C) 2007-2020 Thomas Braun, Jens Klingen, Robin Krom
|
|
*
|
|
* For more information see: http://getgreenshot.org/
|
|
* The Greenshot project is hosted on GitHub https://github.com/greenshot/greenshot
|
|
*
|
|
* 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 1 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
using System;
|
|
using System.Drawing;
|
|
using System.Drawing.Printing;
|
|
using System.Windows.Forms;
|
|
|
|
using Greenshot.Configuration;
|
|
using Greenshot.Forms;
|
|
using GreenshotPlugin.Core;
|
|
using GreenshotPlugin.Effects;
|
|
using GreenshotPlugin.IniFile;
|
|
using GreenshotPlugin.Interfaces;
|
|
using GreenshotPlugin.Interfaces.Plugin;
|
|
using log4net;
|
|
|
|
namespace Greenshot.Helpers {
|
|
/// <summary>
|
|
/// Description of PrintHelper.
|
|
/// </summary>
|
|
public class PrintHelper : IDisposable {
|
|
private static readonly ILog Log = LogManager.GetLogger(typeof(PrintHelper));
|
|
private static readonly CoreConfiguration CoreConfig = IniConfig.GetIniSection<CoreConfiguration>();
|
|
|
|
private ISurface _surface;
|
|
private readonly ICaptureDetails _captureDetails;
|
|
private PrintDocument _printDocument = new PrintDocument();
|
|
private PrintDialog _printDialog = new PrintDialog();
|
|
|
|
public PrintHelper(ISurface surface, ICaptureDetails captureDetails) {
|
|
_surface = surface;
|
|
_captureDetails = captureDetails;
|
|
_printDialog.UseEXDialog = true;
|
|
_printDocument.DocumentName = FilenameHelper.GetFilenameWithoutExtensionFromPattern(CoreConfig.OutputFileFilenamePattern, captureDetails);
|
|
_printDocument.PrintPage += DrawImageForPrint;
|
|
_printDialog.Document = _printDocument;
|
|
}
|
|
|
|
/**
|
|
* Destructor
|
|
*/
|
|
~PrintHelper() {
|
|
Dispose(false);
|
|
}
|
|
|
|
/**
|
|
* The public accessible Dispose
|
|
* Will call the GarbageCollector to SuppressFinalize, preventing being cleaned twice
|
|
*/
|
|
public void Dispose() {
|
|
Dispose(true);
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
|
|
/**
|
|
* This Dispose is called from the Dispose and the Destructor.
|
|
* When disposing==true all non-managed resources should be freed too!
|
|
*/
|
|
protected virtual void Dispose(bool disposing) {
|
|
if (disposing) {
|
|
_printDocument?.Dispose();
|
|
_printDialog?.Dispose();
|
|
}
|
|
_surface = null;
|
|
_printDocument = null;
|
|
_printDialog = null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// displays options dialog (if not disabled via settings) and windows
|
|
/// print dialog.
|
|
/// </summary>
|
|
/// <returns>printer settings if actually printed, or null if print was cancelled or has failed</returns>
|
|
public PrinterSettings PrintTo(string printerName) {
|
|
PrinterSettings returnPrinterSettings = null;
|
|
DialogResult? printOptionsResult = ShowPrintOptionsDialog();
|
|
try {
|
|
if (printOptionsResult == null || printOptionsResult == DialogResult.OK) {
|
|
_printDocument.PrinterSettings.PrinterName = printerName;
|
|
if (!IsColorPrint()) {
|
|
_printDocument.DefaultPageSettings.Color = false;
|
|
}
|
|
_printDocument.Print();
|
|
returnPrinterSettings = _printDocument.PrinterSettings;
|
|
}
|
|
} catch (Exception e) {
|
|
Log.Error("An error ocurred while trying to print", e);
|
|
MessageBox.Show(Language.GetString(LangKey.print_error), Language.GetString(LangKey.error));
|
|
}
|
|
return returnPrinterSettings;
|
|
}
|
|
|
|
/// <summary>
|
|
/// displays options dialog (if not disabled via settings) and windows
|
|
/// print dialog.
|
|
/// </summary>
|
|
/// <returns>printer settings if actually printed, or null if print was cancelled or has failed</returns>
|
|
public PrinterSettings PrintWithDialog() {
|
|
PrinterSettings returnPrinterSettings = null;
|
|
if (_printDialog.ShowDialog() == DialogResult.OK) {
|
|
DialogResult? printOptionsResult = ShowPrintOptionsDialog();
|
|
try {
|
|
if (printOptionsResult == null || printOptionsResult == DialogResult.OK) {
|
|
if (!IsColorPrint()) {
|
|
_printDocument.DefaultPageSettings.Color = false;
|
|
}
|
|
_printDocument.Print();
|
|
returnPrinterSettings = _printDialog.PrinterSettings;
|
|
}
|
|
} catch (Exception e) {
|
|
Log.Error("An error ocurred while trying to print", e);
|
|
MessageBox.Show(Language.GetString(LangKey.print_error), Language.GetString(LangKey.error));
|
|
}
|
|
|
|
}
|
|
return returnPrinterSettings;
|
|
}
|
|
|
|
private bool IsColorPrint() {
|
|
return !CoreConfig.OutputPrintGrayscale && !CoreConfig.OutputPrintMonochrome;
|
|
}
|
|
|
|
/// <summary>
|
|
/// display print options dialog (if the user has not configured Greenshot not to)
|
|
/// </summary>
|
|
/// <returns>result of the print dialog, or null if the dialog has not been displayed by config</returns>
|
|
private DialogResult? ShowPrintOptionsDialog() {
|
|
DialogResult? ret = null;
|
|
if (CoreConfig.OutputPrintPromptOptions)
|
|
{
|
|
using PrintOptionsDialog printOptionsDialog = new PrintOptionsDialog();
|
|
ret = printOptionsDialog.ShowDialog();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
private void DrawImageForPrint(object sender, PrintPageEventArgs e) {
|
|
|
|
|
|
// Create the output settins
|
|
SurfaceOutputSettings printOutputSettings = new SurfaceOutputSettings(OutputFormat.png, 100, false);
|
|
|
|
ApplyEffects(printOutputSettings);
|
|
|
|
bool disposeImage = ImageOutput.CreateImageFromSurface(_surface, printOutputSettings, out var image);
|
|
try {
|
|
ContentAlignment alignment = CoreConfig.OutputPrintCenter ? ContentAlignment.MiddleCenter : ContentAlignment.TopLeft;
|
|
|
|
// prepare timestamp
|
|
float footerStringWidth = 0;
|
|
float footerStringHeight = 0;
|
|
string footerString = null; //DateTime.Now.ToLongDateString() + " " + DateTime.Now.ToLongTimeString();
|
|
if (CoreConfig.OutputPrintFooter) {
|
|
footerString = FilenameHelper.FillPattern(CoreConfig.OutputPrintFooterPattern, _captureDetails, false);
|
|
using Font f = new Font(FontFamily.GenericSansSerif, 10, FontStyle.Regular);
|
|
footerStringWidth = e.Graphics.MeasureString(footerString, f).Width;
|
|
footerStringHeight = e.Graphics.MeasureString(footerString, f).Height;
|
|
}
|
|
|
|
// Get a rectangle representing the printable Area
|
|
RectangleF pageRect = e.PageSettings.PrintableArea;
|
|
if(e.PageSettings.Landscape) {
|
|
float origWidth = pageRect.Width;
|
|
pageRect.Width = pageRect.Height;
|
|
pageRect.Height = origWidth;
|
|
}
|
|
|
|
// Subtract the dateString height from the available area, this way the area stays free
|
|
pageRect.Height -= footerStringHeight;
|
|
|
|
GraphicsUnit gu = GraphicsUnit.Pixel;
|
|
RectangleF imageRect = image.GetBounds(ref gu);
|
|
// rotate the image if it fits the page better
|
|
if (CoreConfig.OutputPrintAllowRotate) {
|
|
if ((pageRect.Width > pageRect.Height && imageRect.Width < imageRect.Height) || (pageRect.Width < pageRect.Height && imageRect.Width > imageRect.Height)) {
|
|
image.RotateFlip(RotateFlipType.Rotate270FlipNone);
|
|
imageRect = image.GetBounds(ref gu);
|
|
if (alignment.Equals(ContentAlignment.TopLeft)) {
|
|
alignment = ContentAlignment.TopRight;
|
|
}
|
|
}
|
|
}
|
|
|
|
RectangleF printRect = new RectangleF(0, 0, imageRect.Width, imageRect.Height);
|
|
// scale the image to fit the page better
|
|
if (CoreConfig.OutputPrintAllowEnlarge || CoreConfig.OutputPrintAllowShrink) {
|
|
SizeF resizedRect = ScaleHelper.GetScaledSize(imageRect.Size, pageRect.Size, false);
|
|
if ((CoreConfig.OutputPrintAllowShrink && resizedRect.Width < printRect.Width) || CoreConfig.OutputPrintAllowEnlarge && resizedRect.Width > printRect.Width) {
|
|
printRect.Size = resizedRect;
|
|
}
|
|
}
|
|
|
|
// align the image
|
|
printRect = ScaleHelper.GetAlignedRectangle(printRect, new RectangleF(0, 0, pageRect.Width, pageRect.Height), alignment);
|
|
if (CoreConfig.OutputPrintFooter)
|
|
{
|
|
//printRect = new RectangleF(0, 0, printRect.Width, printRect.Height - (dateStringHeight * 2));
|
|
using Font f = new Font(FontFamily.GenericSansSerif, 10, FontStyle.Regular);
|
|
e.Graphics.DrawString(footerString, f, Brushes.Black, pageRect.Width / 2 - footerStringWidth / 2, pageRect.Height);
|
|
}
|
|
e.Graphics.DrawImage(image, printRect, imageRect, GraphicsUnit.Pixel);
|
|
|
|
} finally {
|
|
if (disposeImage) {
|
|
image?.Dispose();
|
|
}
|
|
}
|
|
}
|
|
|
|
private void ApplyEffects(SurfaceOutputSettings printOutputSettings) {
|
|
// TODO:
|
|
// add effects here
|
|
if (CoreConfig.OutputPrintMonochrome) {
|
|
byte threshold = CoreConfig.OutputPrintMonochromeThreshold;
|
|
printOutputSettings.Effects.Add(new MonochromeEffect(threshold));
|
|
printOutputSettings.ReduceColors = true;
|
|
}
|
|
|
|
// the invert effect should probably be the last
|
|
if (CoreConfig.OutputPrintInverted) {
|
|
printOutputSettings.Effects.Add(new InvertEffect());
|
|
}
|
|
}
|
|
}
|
|
}
|