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[layers] Implemented SwapUp and SwapDown (Alt-PgUp, Alt-PgDown) to change layers order; Implemented layer merge (Alt-End); improved GIF loader to read images with optimized layers (smaller) and the ones with a transparent color different than zero.

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git-svn-id: svn://pulkomandy.tk/GrafX2/branches/layers@1077 416bcca6-2ee7-4201-b75f-2eb2f807beb1
This commit is contained in:
Yves Rizoud
2009-10-18 19:06:07 +00:00
parent abb6204757
commit 89f2173d70
6 changed files with 185 additions and 48 deletions
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4
misc.c
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@@ -222,7 +222,7 @@ byte Read_pixel_from_current_screen (word x,word y)
byte depth;
byte color;
color = *(Main_screen+y*Main_image_width+x);
if (color != 0) // transparent
if (color != Main_backups->Pages->Transparent_color) // transparent color
return color;
depth = *(Visible_image_depth_buffer.Image+x+y*Main_image_width);
@@ -236,7 +236,7 @@ void Pixel_in_current_screen (word x,word y,byte color,int with_preview)
*(Main_backups->Pages->Image[Main_current_layer] + x+y*Main_image_width)=color;
if ( depth <= Main_current_layer)
{
if (color == 0) // transparent
if (color == Main_backups->Pages->Transparent_color) // transparent color
// fetch pixel color from the topmost visible layer
color=*(Main_backups->Pages->Image[depth] + x+y*Main_image_width);