Enlightenment CVS committal
Author : dj2
Project : e17
Module : docs
Dir : e17/docs/cookbook/xml
Modified Files:
imlib_recipes.xml
Log Message:
- change the < to the xml tag (I also made it > as it didn't make sense)
- random spelling/grammer changes
===================================================================
RCS file: /cvsroot/enlightenment/e17/docs/cookbook/xml/imlib_recipes.xml,v
retrieving revision 1.6
retrieving revision 1.7
diff -u -3 -r1.6 -r1.7
--- imlib_recipes.xml 6 Jul 2004 09:27:02 -0000 1.6
+++ imlib_recipes.xml 6 Jul 2004 23:48:32 -0000 1.7
@@ -70,12 +70,12 @@
<para>
With so many individuals putting so many images online its easy to forget where they
-came from and hard ensure that copyrighted material isn't inadvertantly misused.
Simply
-adding a watermark image such as your sites logo to each of your images can solve
both
-these problems. But adding watermarks manual is a long and repetative task. Imlib2
can
+came from and hard to ensure that copyrighted material isn't inadvertently misused.
Simply
+adding a watermark image, such as your sites logo, to each of your images can solve
both
+these problems. But adding watermarks manual is a long and repetitive task. Imlib2
can
easily be used to solve this problem. What we need to do is take an input image,
and then specify a watermark image (your logo), position the watermark on the input
image
-and then save it out to a new image which we'll use on the site. The apps would look
+and then save it out to a new image which we'll use on the site. The app would look
something like this:
</para>
@@ -93,7 +93,7 @@
int w_watermark, h_watermark;
char watermark[] = "watermark.png";
- if(argc < 1) {
+ if(argc > 1) {
printf("Input image is: %s\n", argv[1]);
printf("Watermark is: %s\n", watermark);
}
@@ -142,12 +142,12 @@
</example>
<para>
-Looking at the example, we first do some really basic argument checking, accepting an
input impage as the first argument
+Looking at the example, we first do some really basic argument checking, accepting an
input image as the first argument
and an output image name for our watermarked copy.
-Using <command>imlib_load_image()</command> we load the input image and then grab its
dimentions using the get functions.
-The <command>imlib_clone_image()</command> function we can create a copy of the input
image, which will be the base of out
-watermarked output. Next se load the watermark image, and notice that then use
<command>imlib_context_set_image()</command>
-to change the context from the input image (image_input) to the watermark image
(image_watermark). Now we grab it's
+Using <command>imlib_load_image()</command> we load the input image and then grab its
dimensions using the get functions.
+With the <command>imlib_clone_image()</command> function we can create a copy of the
input image, which will be the base of our
+watermarked output. Next we load the watermark image, and notice that we then use
<command>imlib_context_set_image()</command>
+to change the context from the input image (image_input) to the watermark image
(image_watermark). Now we grab the images
dimensions as well. In the final block we do two simple calculations to determine
the positioning of the watermark on the
output image, in this case I want the watermark on the bottom right-hand corner. The
magic function that really does the
work in this program is <command>imlib_blend_image_onto_image()</command>. Notice
that we change context to the output
@@ -155,17 +155,17 @@
as the source and destination image.
The blend function blends a source image onto the current image context which we
designate as the destination.
The arguments supplied to
-<command>imlib_blend_image_onto_image</command> can look tricky, we need to tell it
which source to use (the watermark),
+<command>imlib_blend_image_onto_image()</command> can look tricky, we need to tell it
which source to use (the watermark),
whether to merge the alpha channel (0 for no), the dimensions of the source image (x,
y, w, h) and the dimensions of the
-destination image (x, y, w, h). You'll notice that in the example the we set the x
and y positions of the source (watermark)
+destination image (x, y, w, h). You'll notice that in the example we set the x and
y positions of the source (watermark)
image to 0 and then use the full width. The destination (input image) is set to the
bottom right hand corner minus
the dimensions of the watermark, and then we specify the width and height of the
watermark.
-Finally, we use the <command>imlib_save_image()</command> argument to save the output
image.
+Finally, we use the <command>imlib_save_image()</command> function to save the output
image.
</para>
<para>
While this example should be significantly improved for real use, it outlines the
basics of Imlib2 blending
-to solves a very common problem effeciently.
+to solves a very common problem efficiently.
</para>
</section>
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