/// <summary>
/// Reload the image icons to adapt DPI changes
/// </summary>
/// <param name="iconHeight">The height of toolbar icons</param>
public void ReloadIcons(int iconHeight)
{
ToolbarIcons.ViewPreviousImage.Refresh(iconHeight);
ToolbarIcons.ViewNextImage.Refresh(iconHeight);
ToolbarIcons.RotateLeft.Refresh(iconHeight);
ToolbarIcons.RotateRight.Refresh(iconHeight);
ToolbarIcons.FlipHorz.Refresh(iconHeight);
ToolbarIcons.FlipVert.Refresh(iconHeight);
ToolbarIcons.Delete.Refresh(iconHeight);
ToolbarIcons.Edit.Refresh(iconHeight);
ToolbarIcons.Crop.Refresh(iconHeight);
ToolbarIcons.ColorPicker.Refresh(iconHeight);
ToolbarIcons.ZoomIn.Refresh(iconHeight);
ToolbarIcons.ZoomOut.Refresh(iconHeight);
ToolbarIcons.ScaleToFit.Refresh(iconHeight);
ToolbarIcons.ActualSize.Refresh(iconHeight);
ToolbarIcons.LockRatio.Refresh(iconHeight);
ToolbarIcons.AutoZoom.Refresh(iconHeight);
ToolbarIcons.ScaleToWidth.Refresh(iconHeight);
ToolbarIcons.ScaleToHeight.Refresh(iconHeight);
ToolbarIcons.ScaleToFill.Refresh(iconHeight);
ToolbarIcons.AdjustWindowSize.Refresh(iconHeight);
ToolbarIcons.OpenFile.Refresh(iconHeight);
ToolbarIcons.Refresh.Refresh(iconHeight);
ToolbarIcons.GoToImage.Refresh(iconHeight);
ToolbarIcons.ThumbnailBar.Refresh(iconHeight);
ToolbarIcons.Checkerboard.Refresh(iconHeight);
ToolbarIcons.FullScreen.Refresh(iconHeight);
ToolbarIcons.Slideshow.Refresh(iconHeight);
ToolbarIcons.Convert.Refresh(iconHeight);
ToolbarIcons.Print.Refresh(iconHeight);
ToolbarIcons.Settings.Refresh(iconHeight);
ToolbarIcons.About.Refresh(iconHeight);
ToolbarIcons.Menu.Refresh(iconHeight);
ToolbarIcons.ViewFirstImage.Refresh(iconHeight);
ToolbarIcons.ViewLastImage.Refresh(iconHeight);
#region Navigation arrows (derived from toolbar)
var arrowHeight = (int)(DPIScaling.Transform(Constants.DEFAULT_TOOLBAR_ICON_HEIGHT) * NavArrowMultiplier);
var navArrowTemp = new ThemeImage(ToolbarIcons.ViewPreviousImage.Filename, arrowHeight);
navArrowTemp.Refresh(arrowHeight);
NavArrowLeft = navArrowTemp.Image;
navArrowTemp = new ThemeImage(ToolbarIcons.ViewNextImage.Filename, arrowHeight);
navArrowTemp.Refresh(arrowHeight);
NavArrowRight = navArrowTemp.Image;
#endregion
}
/// <summary>
/// Read theme data from theme configuration file (Version 1.5+).
/// Return TRUE if successful, FALSE if the theme format is invalid
/// </summary>
/// <param name="iconHeight">The height of toolbar icons</param>
/// <param name="themeFolderPath">The absolute path of theme folder.</param>
/// <returns></returns>
public bool LoadTheme(int iconHeight, string themeFolderPath)
{
// check and process legacy config filename
this.ConfigFilePath = ProcessLegacyTheme(themeFolderPath);
this.FolderName = Path.GetFileName(themeFolderPath); // get folder name
var dir = Path.GetDirectoryName(this.ConfigFilePath);
var doc = new XmlDocument();
doc.Load(this.ConfigFilePath);
var root = doc.DocumentElement;
XmlElement nType = null;
XmlElement n = null;
try {
//Load theme version 1.5+ as default
nType = (XmlElement)root.SelectNodes("Theme")[0]; //<Theme>
n = (XmlElement)nType.SelectNodes("Info")[0]; //<Info>
}
catch {
this.IsValid = false;
}
#region Theme <Info>
try { Name = n.GetAttribute("name"); }
catch { }
try { Version = n.GetAttribute("version"); }
catch { }
try { Author = n.GetAttribute("author"); }
catch { }
try { Email = n.GetAttribute("email"); }
catch { }
try { Website = n.GetAttribute("website"); }
catch { }
try { Description = n.GetAttribute("description"); }
catch { }
try { Type = n.GetAttribute("type"); }
catch { }
try {
ConfigVersion = n.GetAttribute("configversion");
ConfigVersion = string.IsNullOrWhiteSpace(ConfigVersion) ? CONFIG_VERSION : ConfigVersion;
}
catch { }
#endregion
#region Theme <main>
PreviewImage = LoadThemeImage(dir, n, "preview", iconHeight);
n = (XmlElement)nType.SelectNodes("main")[0]; //<main>
ToolbarBackgroundImage = LoadThemeImage(dir, n, "topbar", iconHeight);
var color = FetchColorAttribute(n, "topbarcolor");
if (color != Color.Transparent)
{
ToolbarBackgroundColor = color;
}
ThumbnailBackgroundImage = LoadThemeImage(dir, n, "bottombar", iconHeight);
color = FetchColorAttribute(n, "bottombarcolor");
if (color != Color.Transparent)
{
ThumbnailBackgroundColor = color;
}
color = FetchColorAttribute(n, "backcolor");
if (color != Color.Transparent)
{
BackgroundColor = color;
}
color = FetchColorAttribute(n, "statuscolor");
if (color != Color.Transparent)
{
TextInfoColor = color;
}
color = FetchColorAttribute(n, "menubackgroundcolor");
if (color != Color.Transparent)
{
MenuBackgroundColor = color;
}
color = FetchColorAttribute(n, "menubackgroundhovercolor");
if (color != Color.Transparent)
{
MenuBackgroundHoverColor = color;
}
color = FetchColorAttribute(n, "menutextcolor");
if (color != Color.Transparent)
{
MenuTextColor = color;
}
color = FetchColorAttribute(n, "menutexthovercolor");
if (color != Color.Transparent)
{
MenuTextHoverColor = color;
}
// For 7.6: add ability to control the size of the navigation arrows
// Minimum value is 1.0, default is 2.0.
try {
var colorString = n.GetAttribute("navarrowsize");
if (!string.IsNullOrWhiteSpace(colorString))
{
if (!double.TryParse(colorString, out var val))
{
val = 2.0;
}
val = Math.Max(val, 1.0);
NavArrowMultiplier = val;
}
}
catch { }
// v8.0: Accent colors
color = FetchColorAttribute(n, "accentcolor");
if (color != Color.Transparent)
{
AccentColor = color;
}
color = FetchColorAttribute(n, "accentlightcolor");
if (color != Color.Transparent)
{
AccentLightColor = color;
}
color = FetchColorAttribute(n, "accentdarkcolor");
if (color != Color.Transparent)
{
AccentDarkColor = color;
}
// v8.0: Form icon
Logo = LoadThemeImage(dir, n, "logo", 128);
if (Logo.Image is null)
{
Logo.Image = Properties.Resources.DefaultLogo;
}
// v8.0: Show icon on title bar
if (bool.TryParse(n.GetAttribute("isshowtitlebarlogo"), out var showLogo))
{
IsShowTitlebarLogo = showLogo;
}
#endregion
#region Theme <toolbar_icon>
n = (XmlElement)nType.SelectNodes("toolbar_icon")[0]; //<toolbar_icon>
ToolbarIcons.ViewPreviousImage = LoadThemeImage(dir, n, "back", iconHeight);
ToolbarIcons.ViewNextImage = LoadThemeImage(dir, n, "next", iconHeight);
ToolbarIcons.RotateLeft = LoadThemeImage(dir, n, "leftrotate", iconHeight);
ToolbarIcons.RotateRight = LoadThemeImage(dir, n, "rightrotate", iconHeight);
ToolbarIcons.FlipHorz = LoadThemeImage(dir, n, "fliphorz", iconHeight);
ToolbarIcons.FlipVert = LoadThemeImage(dir, n, "flipvert", iconHeight);
ToolbarIcons.Delete = LoadThemeImage(dir, n, "delete", iconHeight);
ToolbarIcons.Edit = LoadThemeImage(dir, n, "edit", iconHeight);
ToolbarIcons.Crop = LoadThemeImage(dir, n, "crop", iconHeight);
ToolbarIcons.ColorPicker = LoadThemeImage(dir, n, "colorpicker", iconHeight);
ToolbarIcons.ZoomIn = LoadThemeImage(dir, n, "zoomin", iconHeight);
ToolbarIcons.ZoomOut = LoadThemeImage(dir, n, "zoomout", iconHeight);
ToolbarIcons.ScaleToFit = LoadThemeImage(dir, n, "zoomtofit", iconHeight);
ToolbarIcons.ActualSize = LoadThemeImage(dir, n, "scaletofit", iconHeight);
ToolbarIcons.LockRatio = LoadThemeImage(dir, n, "zoomlock", iconHeight);
ToolbarIcons.AutoZoom = LoadThemeImage(dir, n, "autozoom", iconHeight);
ToolbarIcons.ScaleToWidth = LoadThemeImage(dir, n, "scaletowidth", iconHeight);
ToolbarIcons.ScaleToHeight = LoadThemeImage(dir, n, "scaletoheight", iconHeight);
ToolbarIcons.ScaleToFill = LoadThemeImage(dir, n, "scaletofill", iconHeight);
ToolbarIcons.AdjustWindowSize = LoadThemeImage(dir, n, "autosizewindow", iconHeight);
ToolbarIcons.OpenFile = LoadThemeImage(dir, n, "open", iconHeight);
ToolbarIcons.Refresh = LoadThemeImage(dir, n, "refresh", iconHeight);
ToolbarIcons.GoToImage = LoadThemeImage(dir, n, "gotoimage", iconHeight);
ToolbarIcons.ThumbnailBar = LoadThemeImage(dir, n, "thumbnail", iconHeight);
ToolbarIcons.Checkerboard = LoadThemeImage(dir, n, "checkerboard", iconHeight);
ToolbarIcons.FullScreen = LoadThemeImage(dir, n, "fullscreen", iconHeight);
ToolbarIcons.Slideshow = LoadThemeImage(dir, n, "slideshow", iconHeight);
ToolbarIcons.Convert = LoadThemeImage(dir, n, "convert", iconHeight);
ToolbarIcons.Print = LoadThemeImage(dir, n, "print", iconHeight);
ToolbarIcons.Settings = LoadThemeImage(dir, n, "settings", iconHeight);
ToolbarIcons.About = LoadThemeImage(dir, n, "about", iconHeight);
ToolbarIcons.Menu = LoadThemeImage(dir, n, "menu", iconHeight);
ToolbarIcons.ViewFirstImage = LoadThemeImage(dir, n, "gofirst", iconHeight);
ToolbarIcons.ViewLastImage = LoadThemeImage(dir, n, "golast", iconHeight);
#endregion
#region Arrow cursors (derived from toolbar)
var arrowHeight = (int)(DPIScaling.Transform(iconHeight) * NavArrowMultiplier);
var navArrowTemp = new ThemeImage(ToolbarIcons.ViewPreviousImage.Filename, arrowHeight);
navArrowTemp.Refresh(arrowHeight);
NavArrowLeft = navArrowTemp.Image;
NavArrowRight = new ThemeImage(ToolbarIcons.ViewNextImage.Filename, arrowHeight).Image;
#endregion
this.IsValid = true;
return(this.IsValid);
