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NAMEASFlip¶

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#include "../afterbase.h" #include "../afterimage.h" #include "common.h"

void usage() { printf( "Usage: asflip [-h]|[[-f flip]|[-m vertical] " "[-g geom] image]"); printf( "\nWhere: image - is image filename\n"); printf( " flip - rotation angle in degrees. " "90, 180 and 270 degrees supported\n"); printf( " geom - source image is tiled using this geometry, " "prior to rotation\n"); printf( " vertical - 1 - mirror image in vertical direction, " "0 - horizontal\n"); }

int main(int argc, char* argv[]) { Display *dpy = NULL; ASVisual *asv ; int screen = 0 , depth = 0 ; char *image_file = "rose512.jpg" ; int flip = FLIP_VERTICAL; Bool vertical = False, mirror = False ; int tile_x, tile_y, geom_flags = 0; unsigned int tile_width, tile_height ; ASImage *im = NULL; ASImage *flipped_im = NULL ;

/* see ASView.1 : */ set_application_name( argv[0] );

if( argc > 1 ) { int i = 1 ; if( strcmp( argv[1], "-h" ) == 0 ) { usage(); return 0; } for( i = 1 ; i < argc ; i++ ) { if( argv[i][0] == '-' && i < argc-1 ) { switch(argv[i][1]) { case 'm' : mirror = True; vertical = atoi(argv[i+1]) ; break ; case 'f' : /* see ASFlip.1 */ mirror = False; flip = atoi(argv[i+1])/90 ; break ; case 'g' : /* see ASTile.2 : */ geom_flags = XParseGeometry( argv[i+1], &tile_x, &tile_y, &tile_width, &tile_height ); break ; } ++i ; }else image_file = argv[i] ; } }else usage();

#ifndef X_DISPLAY_MISSING dpy = XOpenDisplay(NULL); _XA_WM_DELETE_WINDOW = XInternAtom( dpy, "WM_DELETE_WINDOW", False); screen = DefaultScreen(dpy); depth = DefaultDepth( dpy, screen ); #endif /* see ASView.2 : */ im = file2ASImage( image_file, 0xFFFFFFFF, SCREEN_GAMMA, 0, getenv("IMAGE_PATH"), NULL ); if( im == NULL ) return 1;

/* Making sure tiling geometry is sane : */ if( !get_flags(geom_flags, XValue ) ) tile_x = 0 ; if( !get_flags(geom_flags, YValue ) ) tile_y = 0 ; if( !get_flags(geom_flags, WidthValue ) ) { if( !mirror ) tile_width = (get_flags(flip,FLIP_VERTICAL))? im->height:im->width ; else tile_width = im->width ; } if( !get_flags(geom_flags, HeightValue ) ) { if( !mirror ) tile_height = (get_flags(flip,FLIP_VERTICAL))? im->width:im->height; else tile_height = im->height ; } printf( "%s: tiling image \"%s\" to %dx%d%+d%+d and then " "flipping it by %d degrees\n", get_application_name(), image_file, tile_width, tile_height,tile_x, tile_y, flip*90 );

/* see ASView.3 : */ asv = create_asvisual( dpy, screen, depth, NULL );

/* see ASFlip.2 : */ if( !mirror ) flipped_im = flip_asimage( asv, im, tile_x, tile_y, tile_width, tile_height, flip, ASA_ASImage, 0, ASIMAGE_QUALITY_DEFAULT ); else flipped_im = mirror_asimage(asv, im, tile_x, tile_y, tile_width, tile_height, vertical, ASA_ASImage, 0, ASIMAGE_QUALITY_DEFAULT ); destroy_asimage( &im );

if( flipped_im ) { #ifndef X_DISPLAY_MISSING /* see ASView.4 : */ Window w = create_top_level_window( asv, DefaultRootWindow(dpy), 32, 32, tile_width, tile_height, 1, 0, NULL, "ASFlip", image_file ); if( w != None ) { Pixmap p ;

XMapRaised (dpy, w); /* see ASView.5 : */ p = asimage2pixmap( asv, DefaultRootWindow(dpy), flipped_im, NULL, True ); destroy_asimage( &flipped_im ); /* see common.c: set_window_background_and_free() : */ p = set_window_background_and_free( w, p ); /* see common.c: wait_closedown() : */ } wait_closedown(w); dpy = NULL; #else /* writing result into the file */ ASImage2file( flipped_im, NULL, "asflip.jpg", ASIT_Jpeg, NULL ); destroy_asimage( &flipped_im ); #endif } return 0 ; }

libAfterImage/tutorials/ASFlip.1 [6.1]

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