本文整理汇总了C#中Gdk.Pixbuf.RotateSimple方法的典型用法代码示例。如果您正苦于以下问题：C# Gdk.Pixbuf.RotateSimple方法的具体用法？C# Gdk.Pixbuf.RotateSimple怎么用？C# Gdk.Pixbuf.RotateSimple使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Gdk.Pixbuf的用法示例。
在下文中一共展示了Gdk.Pixbuf.RotateSimple方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: OnDrawPage
protected override void OnDrawPage (Gtk.PrintContext context, int page_nr)
{
base.OnDrawPage (context, page_nr);
Context cr = context.CairoContext;
int ppx, ppy;
switch (photos_per_page) {
default:
case 1: ppx = ppy =1; break;
case 2: ppx = 1; ppy = 2; break;
case 4: ppx = ppy = 2; break;
case 9: ppx = ppy = 3; break;
}
//FIXME: if paper is landscape, swap ppx with ppy
double w = context.Width / ppx;
double h = context.Height / ppy;
for (int x = 0; x <= ppx; x++) {
for (int y = 0; y <= ppy; y++) {
int p_index = repeat ? page_nr : page_nr * photos_per_page + y * ppx + x;
if (crop_marks)
DrawCropMarks (cr, x*w, y*h, w*.1);
if (x == ppx || y == ppy || p_index >= selected_photos.Length)
continue;
using (ImageFile img = new ImageFile (selected_photos[p_index].DefaultVersionUri))
{
Gdk.Pixbuf pixbuf;
try {
pixbuf = img.Load ();
FSpot.ColorManagement.ApplyPrinterProfile (pixbuf, img.GetProfile ());
} catch (Exception e) {
Log.Exception ("Unable to load image " + selected_photos[p_index].DefaultVersionUri + "\n", e);
// If the image is not found load error pixbuf
pixbuf = new Gdk.Pixbuf (PixbufUtils.ErrorPixbuf, 0, 0,
PixbufUtils.ErrorPixbuf.Width,
PixbufUtils.ErrorPixbuf.Height);
}
//Gdk.Pixbuf pixbuf = img.Load (100, 100);
bool rotated = false;
if (Math.Sign ((double)pixbuf.Width/pixbuf.Height - 1.0) != Math.Sign (w/h - 1.0)) {
Gdk.Pixbuf d_pixbuf = pixbuf.RotateSimple (Gdk.PixbufRotation.Counterclockwise);
pixbuf.Dispose ();
pixbuf = d_pixbuf;
rotated = true;
}
DrawImage (cr, pixbuf, x * w, y * h, w, h);
DrawComment (context, (x + 1) * w, (rotated ? y : y + 1) * h, (rotated ? w : h) * .025, comment, rotated);
pixbuf.Dispose ();
}
}
}
}示例2: OnDrawPage
protected override void OnDrawPage(Gtk.PrintContext context, int page_nr)
{
base.OnDrawPage (context, page_nr);
Context cr = context.CairoContext;
int ppx, ppy;
switch (photos_per_page) {
default:
case 1: ppx = ppy =1; break;
case 2: ppx = 1; ppy = 2; break;
case 4: ppx = ppy = 2; break;
case 9: ppx = ppy = 3; break;
case 12: ppx = 3; ppy = 4; break;
case 20: ppx = 4; ppy = 5; break;
case 30: ppx = 5; ppy = 6; break;
}
//FIXME: if paper is landscape, swap ppx with ppy
double w = context.Width / ppx;
double h = context.Height / ppy;
// compute picture size using 4800DPI
double mx=(w / 25.4) * 4800, my=(h / 25.4) * 4800;
for (int x = 0; x <= ppx; x++) {
for (int y = 0; y <= ppy; y++) {
int p_index = repeat ? page_nr : page_nr * photos_per_page + y * ppx + x;
if (crop_marks)
DrawCropMarks (cr, x*w, y*h, w*.1);
if (x == ppx || y == ppy || p_index >= selected_photos.Length)
continue;
using (var img = ImageFile.Create (selected_photos[p_index].DefaultVersion.Uri))
{
Gdk.Pixbuf pixbuf;
try {
pixbuf = img.Load ((int) mx, (int) my);
Cms.Profile printer_profile;
if (FSpot.ColorManagement.Profiles.TryGetValue (Preferences.Get<string> (Preferences.COLOR_MANAGEMENT_OUTPUT_PROFILE), out printer_profile))
FSpot.ColorManagement.ApplyProfile (pixbuf, img.GetProfile (), printer_profile);
} catch (Exception e) {
Log.Exception ("Unable to load image " + selected_photos[p_index].DefaultVersion.Uri + "\n", e);
// If the image is not found load error pixbuf
pixbuf = new Gdk.Pixbuf (PixbufUtils.ErrorPixbuf, 0, 0,
PixbufUtils.ErrorPixbuf.Width,
PixbufUtils.ErrorPixbuf.Height);
}
//Gdk.Pixbuf pixbuf = img.Load (100, 100);
bool rotated = false;
if (Math.Sign ((double)pixbuf.Width/pixbuf.Height - 1.0) != Math.Sign (w/h - 1.0)) {
Gdk.Pixbuf d_pixbuf = pixbuf.RotateSimple (Gdk.PixbufRotation.Counterclockwise);
pixbuf.Dispose ();
pixbuf = d_pixbuf;
rotated = true;
}
DrawImage (cr, pixbuf, x * w, y * h, w, h);
string tag_string = "";
foreach (Tag t in selected_photos[p_index].Tags)
tag_string = String.Concat (tag_string, t.Name);
string label = String.Format (print_label_format,
comment,
selected_photos[p_index].Name,
selected_photos[p_index].Time.ToLocalTime ().ToShortDateString (),
selected_photos[p_index].Time.ToLocalTime ().ToShortTimeString (),
tag_string,
selected_photos[p_index].Description);
DrawComment (context, (x + 1) * w, (rotated ? y : y + 1) * h, (rotated ? w : h) * .025, label, rotated);
pixbuf.Dispose ();
}
}
}
}示例3: UpdatePreview
protected void UpdatePreview()
{
thumb_image.Clear();
FileIsGood = false;
int size = 200, margins = 30;
if (System.IO.File.Exists(mFilename)) // Selected item is a file
{
origsize_label.Markup = "";
GLib.Timeout.Add(100, new GLib.TimeoutHandler(delegate {
Gdk.Pixmap pm = null;
Gdk.GC gc = null;
Gdk.Pixbuf pb = null;
try
{
pm = new Gdk.Pixmap(thumb_image.GdkWindow, size + margins, size + margins, -1);
gc = new Gdk.GC(thumb_image.GdkWindow);
pm.DrawRectangle(gc, true, new Gdk.Rectangle(0, 0, size + margins, size + margins));
RawDescriptionLoader rdl = RawDescriptionLoader.FromFile(mFilename);
string idtext = "";
try
{
idtext += "Shot has been taken\n" +
" on <b>" + rdl.TimeStamp.ToString("MMMM, d, yyyy") + "</b> at <b>" + rdl.TimeStamp.ToString("h:mm:ss tt") + "</b>,\n";
idtext += " with <b>" + rdl.CameraMaker + " " + rdl.CameraModel + "</b>\n\n";
idtext += "ISO speed: <b>" + rdl.ISOSpeed.ToString("0") + "</b>\n";
if (rdl.Shutter > 1)
idtext += "Shutter: <b>" + rdl.Shutter.ToString("0.0") + "</b> sec\n";
else
idtext += "Shutter: <b>1/" + (1.0 / (rdl.Shutter + 0.000001)).ToString("0") + "</b> sec\n";
idtext += "Aperture: <b>" + rdl.Aperture.ToString("0.0") + "</b>\n" +
"Focal length: <b>" + rdl.FocalLength.ToString("0") + "</b> mm\n";
if (rdl.Artist != "") idtext += "Artist: <b>" + rdl.Artist + "</b>\n";
if (rdl.Description != "") idtext += "Description: <b>" + rdl.Description + "</b>\n";
Console.WriteLine(rdl.Flip);
// Creating the thumbnail pixbuf
pb = new Gdk.Pixbuf(rdl.ThumbnailData);
}
catch (Exception ex)
{
Console.WriteLine("Can't load the thumbnail: " + ex.Message);
idtext += "\n<i>Can't load the thumbnail.</i>";
}
identification_label.Markup = idtext;
if (pb != null)
{
// Scaling the thumbnail
Gdk.Pixbuf pbold = pb;
int imgw = pb.Width, imgh = pb.Height;
if (pb.Width > pb.Height)
pb = pb.ScaleSimple(size, (int)((double)pb.Height / pb.Width * size), Gdk.InterpType.Bilinear);
else
pb = pb.ScaleSimple((int)((double)pb.Width / pb.Height * size), size, Gdk.InterpType.Bilinear);
pbold.Dispose();
// Rotating the thumbnail
if (rdl.Flip != RawDescriptionLoader.FlipValues.None)
{
pbold = pb;
if (rdl.Flip == RawDescriptionLoader.FlipValues.UpsideDown)
pb = pb.RotateSimple(Gdk.PixbufRotation.Upsidedown);
else if (rdl.Flip == RawDescriptionLoader.FlipValues.Clockwise)
{
int t = imgw;
imgw = imgh;
imgh = t;
pb = pb.RotateSimple(Gdk.PixbufRotation.Clockwise);
}
else if (rdl.Flip == RawDescriptionLoader.FlipValues.Counterclockwise)
{
int t = imgw;
imgw = imgh;
imgh = t;
pb = pb.RotateSimple(Gdk.PixbufRotation.Counterclockwise);
}
pbold.Dispose();
}
origsize_label.Markup = "Image size: <b>" + imgw + "</b> x <b>" + imgh + "</b>";
pm.DrawPixbuf(gc, pb, 0, 0,
(size + margins) / 2 - pb.Width / 2,
(size + margins) / 2 - pb.Height / 2,
pb.Width, pb.Height, Gdk.RgbDither.Max, 0, 0);
thumb_image.SetFromPixmap(pm, null);
pb.Dispose();
//.........这里部分代码省略.........