Commit: a3ae2d3a64d93622e9d3c3ff5643f4e14084e954 - magickd (git)

D bindings to the GraphicsMagick library.

Commit MetaInfo

• Revisión: a3ae2d3a64d93622e9d3c3ff5643f4e14084e954 (tree)
• Tiempo: 2023-07-22 15:00:52
• Autor: Mio <stigma@disr...>
• Commiter: Mio

Log Message

[magickd] Add MagickWand getPrevious/Next Image

Cambiar Resumen

• modified: source/magickd/magick_wand.d

Diferencia incremental

--- a/source/magickd/magick_wand.d
+++ b/source/magickd/magick_wand.d
@@ -28,6 +28,7 @@ import core.stdc.stdlib : free;
 
 import std.string : fromStringz, toStringz;
 
+import graphicsmagick_c.magick.api : MagickTrue;
 import graphicsmagick_c.magick.error : ExceptionType;
 import graphicsmagick_c.wand.magick_wand;
 import graphicsmagick_c.wand.magick_wand : cMagickWand = MagickWand;
@@ -283,6 +284,41 @@ package(magickd):
    }
 
    ///
+   /// Returns `true` if the wand has more images when traversing the list
+   /// in a forward direction.
+   ///
+   public bool hasNextImage() nothrow
+   in {
+      assert(null !is this.ptr, "Attempting to use a MagickWand that hasn't been created.");
+   }
+   do {
+      return MagickHasNextImage(this.ptr) == MagickTrue ? true : false;
+   }
+
+   ///
+   /// Returns `true` if the wand has more images when traversing the list
+   /// in the reverse direction.
+   ///
+   public bool hasPreviousImage() nothrow
+   in {
+      assert(null !is this.ptr, "Attempting to use a MagickWand that hasn't been created.");
+   }
+   do {
+      return MagickHasPreviousImage(this.ptr) == MagickTrue ? true : false;
+   }
+
+   ///
+   /// Associate the next image in the image list with a MagickWand.
+   ///
+   public void nextImage()
+   in {
+      assert(null !is this.ptr, "Attempting to use a MagickWand that hasn't been created.");
+   }
+   do {
+      MagickNextImage(this.ptr);
+   }
+
+   ///
    /// Similar to readImage, except the only valid information returned is
    /// the image width, height, size, and format.
    ///
@@ -299,6 +335,17 @@ package(magickd):
    }
 
    ///
+   /// Selects the previous image associated with a magick wand.
+   ///
+   public void previousImage()
+   in {
+      assert(null !is this.ptr, "Attempting to use a MagickWand that hasn't been created.");
+   }
+   do {
+      MagickPreviousImage(this.ptr);
+   }
+
+   ///
    /// Read an image or an image sequence
    ///
    public void readImage(string filename)