#region License Information /* HeuristicLab * Copyright (C) 2002-2015 Heuristic and Evolutionary Algorithms Laboratory (HEAL) * * This file is part of HeuristicLab. * * HeuristicLab 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 3 of the License, or * (at your option) any later version. * * HeuristicLab 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 HeuristicLab. If not, see . */ #endregion using System; using System.ComponentModel; using System.Drawing; using System.Drawing.Imaging; using System.IO; using System.Linq; using System.Windows.Forms; using System.Windows.Forms.DataVisualization.Charting; namespace HeuristicLab.Visualization.ChartControlsExtensions { public sealed partial class ImageExportDialog : Form { private const float CMPERINCH = 2.54f; private static readonly string DPI = "dpi", DPCM = "dpcm", INCH = "inch", CM = "cm"; private Chart originalChart, workingChart; private bool SuppressEvents { get; set; } /// /// Initializes a new ImageExportDialog. /// /// /// Throws an ArgumentNullException if is null. /// /// The chart for which the export should be generated. public ImageExportDialog(Chart chart) { if (chart == null) throw new ArgumentNullException("chart"); this.originalChart = chart; InitializeComponent(); #region Custom Initialization SuppressEvents = true; try { resolutionUnitComboBox.Items.Add(DPI); resolutionUnitComboBox.Items.Add(DPCM); lengthUnitComboBox.Items.Add(INCH); lengthUnitComboBox.Items.Add(CM); resolutionUnitComboBox.SelectedIndex = 0; if (System.Globalization.RegionInfo.CurrentRegion.IsMetric) lengthUnitComboBox.SelectedIndex = 1; else lengthUnitComboBox.SelectedIndex = 0; titleFontSizeComboBox.Text = "10"; axisFontSizeComboBox.Text = "8"; scalesFontSizeComboBox.Text = "6"; legendFontSizeComboBox.Text = "6"; resolutionComboBox.Text = "150"; SuppressEvents = false; splitContainer.Panel2Collapsed = true; Width = 305; Height = 625; } finally { SuppressEvents = false; } #endregion } private void UpdateFields() { var area = GetCurrentChartArea(); try { SuppressEvents = true; if (workingChart.Titles.Count == 0) titleFontSizeComboBox.Text = "10"; else { titleTextBox.Text = workingChart.Titles[0].Text; titleFontSizeComboBox.Text = workingChart.Titles[0].Font.SizeInPoints.ToString(); } primaryXTextBox.Text = area.AxisX.Title; primaryYTextBox.Text = area.AxisY.Title; secondaryXTextBox.Text = area.AxisX2.Title; secondaryYTextBox.Text = area.AxisY2.Title; axisFontSizeComboBox.Text = area.AxisX.TitleFont.SizeInPoints.ToString(); scalesFontSizeComboBox.Text = area.AxisX.LabelStyle.Font.SizeInPoints.ToString(); if (workingChart.Legends.Count == 0) legendFontSizeComboBox.Text = "6"; else legendFontSizeComboBox.Text = workingChart.Legends[0].Font.SizeInPoints.ToString(); } finally { SuppressEvents = false; } } private ChartArea GetCurrentChartArea() { return workingChart.ChartAreas[chartAreaComboBox.Text]; } private void UpdatePreview() { float dpi; float width; float height; GetImageParameters(out dpi, out width, out height); if (previewPictureBox.Image != null) { previewPictureBox.Image.Dispose(); previewPictureBox.Image = null; } int previewWidth, previewHeight; if (width / height >= 1.0) { previewWidth = previewPictureBox.Width; previewHeight = (int)Math.Round(height / width * previewWidth); } else { previewHeight = previewPictureBox.Height; previewWidth = (int)Math.Round(width / height * previewHeight); } var scaleFactor = (float)Math.Min(previewWidth / width, previewHeight / height); if (scaleFactor >= 1) { previewZoomLabel.Text = "100%"; previewWidth = (int)Math.Round(width); previewHeight = (int)Math.Round(height); } else previewZoomLabel.Text = (scaleFactor * 100).ToString("0") + "%"; rawImageSizeLabel.Text = GetRawImageSizeInMegabytes(width, height).ToString("0.00") + "M " + "(" + Math.Round(width).ToString("0") + " x " + Math.Round(height).ToString("0") + ") pixels"; var image = new Bitmap(previewWidth, previewHeight); image.SetResolution(dpi, dpi); using (Graphics graphics = Graphics.FromImage(image)) { if (scaleFactor < 1) graphics.ScaleTransform(scaleFactor, scaleFactor); workingChart.Printing.PrintPaint(graphics, new Rectangle(0, 0, (int)Math.Round(width), (int)Math.Round(height))); } previewPictureBox.Image = image; } private void GetImageParameters(out float dpi, out float width, out float height) { dpi = float.Parse(resolutionComboBox.Text); if (resolutionUnitComboBox.Text == DPCM) dpi *= CMPERINCH; width = (float)widthNumericUD.Value; height = (float)heightNumericUD.Value; if (lengthUnitComboBox.Text == CM) { width /= CMPERINCH; height /= CMPERINCH; } width *= dpi; height *= dpi; } protected override void OnShown(EventArgs e) { #region Create copy of chart var prevContent = originalChart.Serializer.Content; var prevFormat = originalChart.Serializer.Format; originalChart.Serializer.Content = SerializationContents.Default; originalChart.Serializer.Format = SerializationFormat.Binary; using (var ms = new MemoryStream()) { originalChart.Serializer.Save(ms); ms.Seek(0, SeekOrigin.Begin); workingChart = new EnhancedChart(); workingChart.Serializer.Format = originalChart.Serializer.Format; workingChart.Serializer.Load(ms); } foreach (var s in workingChart.Series.Where(x => !x.Points.Any()).ToArray()) s.IsVisibleInLegend = false; originalChart.Serializer.Content = prevContent; originalChart.Serializer.Format = prevFormat; #endregion chartAreaComboBox.Items.Clear(); foreach (var area in originalChart.ChartAreas.Where(x => x.Visible)) { chartAreaComboBox.Items.Add(area.Name); } chartAreaComboBox.SelectedIndex = 0; SuppressEvents = true; try { showPrimaryXAxisCheckBox.Checked = originalChart.Series.Any(x => x.XAxisType == AxisType.Primary); showPrimaryYAxisCheckBox.Checked = originalChart.Series.Any(x => x.YAxisType == AxisType.Primary); showSecondaryXAxisCheckBox.Checked = originalChart.Series.Any(x => x.XAxisType == AxisType.Secondary); showSecondaryYAxisCheckBox.Checked = originalChart.Series.Any(x => x.YAxisType == AxisType.Secondary); if (!workingChart.Legends.Any()) { legendPositionComboBox.Enabled = false; legendFontSizeComboBox.Enabled = false; } else { legendPositionComboBox.Enabled = true; legendFontSizeComboBox.Enabled = true; if (workingChart.Legends[0].Enabled) { switch (workingChart.Legends[0].Docking) { case Docking.Top: legendPositionComboBox.SelectedItem = "Top"; break; case Docking.Right: legendPositionComboBox.SelectedItem = "Right"; break; case Docking.Bottom: legendPositionComboBox.SelectedItem = "Bottom"; break; case Docking.Left: legendPositionComboBox.SelectedItem = "Left"; break; } } else { legendPositionComboBox.SelectedItem = "Hidden"; } } } finally { SuppressEvents = false; } base.OnShown(e); if (togglePreviewCheckBox.Checked) UpdatePreview(); } private void togglePreviewCheckBox_CheckedChanged(object sender, EventArgs e) { splitContainer.Panel2Collapsed = !togglePreviewCheckBox.Checked; togglePreviewCheckBox.Text = togglePreviewCheckBox.Checked ? "<" : ">"; if (splitContainer.Panel2Collapsed) Width = cancelButton.Right + cancelButton.Margin.Right + Margin.Right + 10; else Width = splitContainer.Right + splitContainer.Margin.Right + Margin.Right; if (togglePreviewCheckBox.Checked) UpdatePreview(); } private void chartAreaComboBox_SelectedIndexChanged(object sender, EventArgs e) { if (chartAreaComboBox.SelectedIndex >= 0) UpdateFields(); } private void legendPositionComboBox_SelectedIndexChanged(object sender, EventArgs e) { if (!SuppressEvents) { if (legendPositionComboBox.SelectedIndex >= 0) { var legend = workingChart.Legends[0]; var legendPosition = legendPositionComboBox.Items[legendPositionComboBox.SelectedIndex].ToString(); if (legendPosition != "Hidden" && !legend.Enabled) legend.Enabled = true; switch (legendPosition) { case "Top": legend.Docking = Docking.Top; break; case "Right": legend.Docking = Docking.Right; break; case "Bottom": legend.Docking = Docking.Bottom; break; case "Left": legend.Docking = Docking.Left; break; case "Hidden": legend.Enabled = false; break; } } UpdatePreview(); } } private void titleTextBox_TextChanged(object sender, EventArgs e) { if (!SuppressEvents) { if (string.IsNullOrEmpty(titleTextBox.Text)) workingChart.Titles.Clear(); else { if (workingChart.Titles.Count > 0) { workingChart.Titles[0].Text = titleTextBox.Text; } else { var t = new Title(titleTextBox.Text); t.Font = ChangeFontSizePt(t.Font, float.Parse(titleFontSizeComboBox.Text)); workingChart.Titles.Add(t); } } if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void primaryXTextBox_TextChanged(object sender, EventArgs e) { if (!SuppressEvents) { var area = GetCurrentChartArea(); area.AxisX.Title = primaryXTextBox.Text; if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void primaryYTextBox_TextChanged(object sender, EventArgs e) { if (!SuppressEvents) { var area = GetCurrentChartArea(); area.AxisY.Title = primaryYTextBox.Text; if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void secondaryXTextBox_TextChanged(object sender, EventArgs e) { if (!SuppressEvents) { var area = GetCurrentChartArea(); area.AxisX2.Title = secondaryXTextBox.Text; if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void secondaryYTextBox_TextChanged(object sender, EventArgs e) { if (!SuppressEvents) { var area = GetCurrentChartArea(); area.AxisY2.Title = secondaryYTextBox.Text; if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void showPrimaryXAxisCheckBox_CheckedChanged(object sender, EventArgs e) { if (!SuppressEvents) { var area = GetCurrentChartArea(); var isChecked = ((CheckBox)sender).Checked; area.AxisX.Enabled = isChecked ? AxisEnabled.True : AxisEnabled.False; if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void showPrimaryYAxisCheckBox_CheckedChanged(object sender, EventArgs e) { if (!SuppressEvents) { var area = GetCurrentChartArea(); var isChecked = ((CheckBox)sender).Checked; area.AxisY.Enabled = isChecked ? AxisEnabled.True : AxisEnabled.False; if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void showSecondaryXAxisCheckBox_CheckedChanged(object sender, EventArgs e) { if (!SuppressEvents) { var area = GetCurrentChartArea(); var isChecked = ((CheckBox)sender).Checked; area.AxisX2.Enabled = isChecked ? AxisEnabled.True : AxisEnabled.False; if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void showSecondaryYAxisCheckBox_CheckedChanged(object sender, EventArgs e) { if (!SuppressEvents) { var area = GetCurrentChartArea(); var isChecked = ((CheckBox)sender).Checked; area.AxisY2.Enabled = isChecked ? AxisEnabled.True : AxisEnabled.False; if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void widthNumericUD_ValueChanged(object sender, EventArgs e) { float dpi, width, height; GetImageParameters(out dpi, out width, out height); if (GetRawImageSizeInMegabytes(width, height) > 25) // bigger than A4 at 300dpi MessageBox.Show("Warning: The image is getting quite big."); if (togglePreviewCheckBox.Checked) UpdatePreview(); } private void heightNumericUD_ValueChanged(object sender, EventArgs e) { float dpi, width, height; GetImageParameters(out dpi, out width, out height); if (GetRawImageSizeInMegabytes(width, height) > 25) // bigger than A4 at 300dpi MessageBox.Show("Warning: The image is getting quite big."); if (togglePreviewCheckBox.Checked) UpdatePreview(); } private void titleFontSizeComboBox_TextChanged(object sender, EventArgs e) { if (!SuppressEvents) { float fontSize; if (float.TryParse(titleFontSizeComboBox.Text, out fontSize)) { if (workingChart.Titles.Count > 0) { workingChart.Titles[0].Font = ChangeFontSizePt(workingChart.Titles[0].Font, fontSize); if (togglePreviewCheckBox.Checked) UpdatePreview(); } } } } private void axisFontSizeComboBox_TextChanged(object sender, EventArgs e) { if (!SuppressEvents) { float fontSize; if (float.TryParse(axisFontSizeComboBox.Text, out fontSize)) { var area = GetCurrentChartArea(); foreach (Axis a in area.Axes) a.TitleFont = ChangeFontSizePt(a.TitleFont, fontSize); } if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void scalesFontSizeComboBox_TextChanged(object sender, EventArgs e) { if (!SuppressEvents) { float fontSize; if (float.TryParse(scalesFontSizeComboBox.Text, out fontSize)) { var area = GetCurrentChartArea(); foreach (var a in area.Axes) a.LabelStyle.Font = ChangeFontSizePt(a.LabelStyle.Font, fontSize); } if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void legendFontSizeComboBox_TextChanged(object sender, EventArgs e) { if (!SuppressEvents) { float fontSize; if (float.TryParse(legendFontSizeComboBox.Text, out fontSize)) { foreach (var l in workingChart.Legends) l.Font = ChangeFontSizePt(l.Font, fontSize); } if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void numericComboBox_Validating(object sender, CancelEventArgs e) { if (!(sender is ComboBox)) return; float number; e.Cancel = !float.TryParse((sender as ComboBox).Text, out number); } private void resolutionComboBox_TextChanged(object sender, EventArgs e) { float resolution; if (float.TryParse(resolutionComboBox.Text, out resolution)) { if (togglePreviewCheckBox.Checked) UpdatePreview(); } } private void resolutionComboBox_Validating(object sender, CancelEventArgs e) { float resolution; e.Cancel = !float.TryParse(resolutionComboBox.Text, out resolution); } private void resolutionUnitComboBox_SelectedIndexChanged(object sender, EventArgs e) { if (togglePreviewCheckBox.Checked) UpdatePreview(); } private void lengthUnitComboBox_SelectedIndexChanged(object sender, EventArgs e) { if (togglePreviewCheckBox.Checked) UpdatePreview(); } private void okButton_Click(object sender, EventArgs e) { float dpi; float width; float height; GetImageParameters(out dpi, out width, out height); var image = new Bitmap((int)Math.Round(width), (int)Math.Round(height)); image.SetResolution(dpi, dpi); if (titleTextBox.Text.Trim() != String.Empty) saveFileDialog.FileName = titleTextBox.Text.Trim(); if (saveFileDialog.ShowDialog() == DialogResult.OK) { var format = ImageFormat.Bmp; var filename = saveFileDialog.FileName.ToLower(); if (filename.EndsWith("emf")) { using (var graphics = Graphics.FromImage(image)) { var rectangle = new Rectangle(0, 0, image.Width, image.Height); using (var metafile = new Metafile(filename, graphics.GetHdc(), rectangle, MetafileFrameUnit.Pixel, EmfType.EmfPlusDual)) { graphics.ReleaseHdc(); using (var g = Graphics.FromImage(metafile)) { workingChart.Printing.PrintPaint(g, rectangle); } } } } else { using (var graphics = Graphics.FromImage(image)) { workingChart.Printing.PrintPaint(graphics, new Rectangle(0, 0, image.Width, image.Height)); } if (filename.EndsWith("jpg")) { format = ImageFormat.Jpeg; } else if (filename.EndsWith("gif")) { format = ImageFormat.Gif; } else if (filename.EndsWith("png")) { format = ImageFormat.Png; } else if (filename.EndsWith("tif")) { format = ImageFormat.Tiff; } image.Save(saveFileDialog.FileName, format); } } image.Dispose(); Cleanup(); } private void cancelButton_Click(object sender, EventArgs e) { Cleanup(); } private void Cleanup() { if (previewPictureBox.Image != null) previewPictureBox.Image.Dispose(); previewPictureBox.Image = null; workingChart = null; } private static Font ChangeFontSizePt(Font font, float fontSize) { if (font != null) { float currentSize = font.Size; if (currentSize != fontSize) { font = new Font(font.Name, fontSize, font.Style, GraphicsUnit.Point, font.GdiCharSet, font.GdiVerticalFont); } } return font; } private static float GetRawImageSizeInMegabytes(float width, float height) { return ((3 * width * height) / (1024 * 1024)); } } }