start tint2conf work

[chaz/tint2] / src / util / common.c

diff --git a/src/util/common.c b/src/util/common.c
index c0ca6c3ece563cad5261559ff630433163d10d79..f6fa36e32c2c0f8cbbfaeda9f339809c4db1f880 100644 (file)
--- a/src/util/common.c
+++ b/src/util/common.c
@@ -3,7 +3,7 @@
 * Tint2 : common windows function
 *
 * Copyright (C) 2007 Pål Staurland (staura@gmail.com)
-* Modified (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr)
+* Modified (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr) from Omega distribution
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2
@@ -21,12 +21,14 @@
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <X11/Xatom.h>
+#include <X11/extensions/Xrender.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-
+#include <unistd.h>
 
 #include "common.h"
+#include "../server.h"
 
 
 
@@ -42,7 +44,9 @@ void copy_file(const char *pathSrc, const char *pathDest)
        fileDest = fopen(pathDest, "wb");
        if (fileDest == NULL) return;
 
-       while ((nb = fread(line, 1, 100, fileSrc)) > 0) fwrite(line, 1, nb, fileDest);
+       while ((nb = fread(line, 1, 100, fileSrc)) > 0)
+               if ( nb != fwrite(line, 1, nb, fileDest))
+                       printf("Error while copying file %s to %s\n", pathSrc, pathDest);
 
        fclose (fileDest);
        fclose (fileSrc);
@@ -73,6 +77,23 @@ int parse_line (const char *line, char **key, char **value)
 }
 
 
+void tint_exec(const char *command)
+{
+       if (command) {
+               pid_t pid;
+               pid = fork();
+               if (pid == 0) {
+                       // change for the fork the signal mask
+//                     sigset_t sigset;
+//                     sigprocmask(SIG_SETMASK, &sigset, 0);
+//                     sigprocmask(SIG_UNBLOCK, &sigset, 0);
+                       execl("/bin/sh", "/bin/sh", "-c", command, NULL);
+                       _exit(0);
+               }
+       }
+}
+
+
 int hex_char_to_int (char c)
 {
        int r;
@@ -125,6 +146,45 @@ void get_color (char *hex, double *rgb)
 }
 
 
+void extract_values (const char *value, char **value1, char **value2, char **value3)
+{
+       char *b=0, *c=0;
+
+       if (*value1) free (*value1);
+       if (*value2) free (*value2);
+       if (*value3) free (*value3);
+
+       if ((b = strchr (value, ' '))) {
+               b[0] = '\0';
+               b++;
+       }
+       else {
+               *value2 = 0;
+               *value3 = 0;
+       }
+       *value1 = strdup (value);
+       g_strstrip(*value1);
+
+       if (b) {
+               if ((c = strchr (b, ' '))) {
+                       c[0] = '\0';
+                       c++;
+               }
+               else {
+                       c = 0;
+                       *value3 = 0;
+               }
+               *value2 = strdup (b);
+               g_strstrip(*value2);
+       }
+
+       if (c) {
+               *value3 = strdup (c);
+               g_strstrip(*value3);
+       }
+}
+
+
 void adjust_asb(DATA32 *data, int w, int h, int alpha, float satur, float bright)
 {
        unsigned int x, y;
@@ -234,3 +294,51 @@ void adjust_asb(DATA32 *data, int w, int h, int alpha, float satur, float bright
        }
 }
 
+
+void createHeuristicMask(DATA32* data, int w, int h)
+{
+       // first we need to find the mask color, therefore we check all 4 edge pixel and take the color which
+       // appears most often (we only need to check three edges, the 4th is implicitly clear)
+       unsigned int topLeft = data[0], topRight = data[w-1], bottomLeft = data[w*h-w], bottomRight = data[w*h-1];
+       int max = (topLeft == topRight) + (topLeft == bottomLeft) + (topLeft == bottomRight);
+       int maskPos = 0;
+       if ( max < (topRight == topLeft) + (topRight == bottomLeft) + (topRight == bottomRight) ) {
+               max = (topRight == topLeft) + (topRight == bottomLeft) + (topRight == bottomRight);
+               maskPos = w-1;
+       }
+       if ( max < (bottomLeft == topRight) + (bottomLeft == topLeft) + (bottomLeft == bottomRight) )
+               maskPos = w*h-w;
+
+       // now mask out every pixel which has the same color as the edge pixels
+       unsigned char* udata = (unsigned char*)data;
+       unsigned char b = udata[4*maskPos];
+       unsigned char g = udata[4*maskPos+1];
+       unsigned char r = udata[4*maskPos+1];
+       int i;
+       for (i=0; i<h*w; ++i) {
+               if ( b-udata[0] == 0 && g-udata[1] == 0 && r-udata[2] == 0 )
+                       udata[3] = 0;
+               udata += 4;
+       }
+}
+
+
+void render_image(Drawable d, int x, int y, int w, int h)
+{
+       // in real_transparency mode imlib_render_image_on_drawable does not the right thing, because
+       // the operation is IMLIB_OP_COPY, but we would need IMLIB_OP_OVER (which does not exist)
+       // Therefore we have to do it with the XRender extension (i.e. copy what imlib is doing internally)
+       // But first we need to render the image onto itself with PictOpIn to adjust the colors to the alpha channel
+       Pixmap pmap_tmp = XCreatePixmap(server.dsp, server.root_win, w, h, 32);
+       imlib_context_set_drawable(pmap_tmp);
+       imlib_context_set_blend(0);
+       imlib_render_image_on_drawable(0, 0);
+       Picture pict_image = XRenderCreatePicture(server.dsp, pmap_tmp, XRenderFindStandardFormat(server.dsp, PictStandardARGB32), 0, 0);
+       Picture pict_drawable = XRenderCreatePicture(server.dsp, d, XRenderFindVisualFormat(server.dsp, server.visual), 0, 0);
+       XRenderComposite(server.dsp, PictOpIn, pict_image, None, pict_image, 0, 0, 0, 0, 0, 0, w, h);
+       XRenderComposite(server.dsp, PictOpOver, pict_image, None, pict_drawable, 0, 0, 0, 0, x, y, w, h);
+       imlib_context_set_blend(1);
+       XFreePixmap(server.dsp, pmap_tmp);
+       XRenderFreePicture(server.dsp, pict_image);
+       XRenderFreePicture(server.dsp, pict_drawable);
+}