From c6702c7d3f53b0eb07e452c732df1b8f5765b287 Mon Sep 17 00:00:00 2001
From: Yang Tse <yangsita@gmail.com>
Date: Sat, 24 Sep 2011 17:38:16 +0200
Subject: curl tool: reviewed code moved to tool_*.[ch] files

---
 src/tool_cb_prg.c | 146 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 146 insertions(+)
 create mode 100644 src/tool_cb_prg.c

(limited to 'src/tool_cb_prg.c')

diff --git a/src/tool_cb_prg.c b/src/tool_cb_prg.c
new file mode 100644
index 000000000..e141f1e65
--- /dev/null
+++ b/src/tool_cb_prg.c
@@ -0,0 +1,146 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at http://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include "setup.h"
+
+#include <curl/curl.h>
+
+#define ENABLE_CURLX_PRINTF
+/* use our own printf() functions */
+#include "curlx.h"
+
+#include "tool_cfgable.h"
+#include "tool_cb_prg.h"
+
+#include "memdebug.h" /* keep this as LAST include */
+
+/*
+** callback for CURLOPT_PROGRESSFUNCTION
+*/
+
+int tool_progress_cb(void *clientp,
+                     double dltotal, double dlnow,
+                     double ultotal, double ulnow)
+{
+  /* The original progress-bar source code was written for curl by Lars Aas,
+     and this new edition inherits some of his concepts. */
+
+  char line[256];
+  char outline[256];
+  char format[40];
+  double frac;
+  double percent;
+  int barwidth;
+  int num;
+  int i;
+
+  struct ProgressData *bar = (struct ProgressData *)clientp;
+
+  /* expected transfer size */
+  curl_off_t total = (curl_off_t)dltotal + (curl_off_t)ultotal +
+    bar->initial_size;
+
+  /* we've come this far */
+  curl_off_t point = (curl_off_t)dlnow + (curl_off_t)ulnow +
+    bar->initial_size;
+
+  if(point > total)
+    /* we have got more than the expected total! */
+    total = point;
+
+  /* simply count invokes */
+  bar->calls++;
+
+  if(total < 1) {
+    curl_off_t prevblock = bar->prev / 1024;
+    curl_off_t thisblock = point / 1024;
+    while(thisblock > prevblock) {
+      fprintf(bar->out, "#");
+      prevblock++;
+    }
+  }
+  else {
+    frac = (double)point / (double)total;
+    percent = frac * 100.0f;
+    barwidth = bar->width - 7;
+    num = (int) (((double)barwidth) * frac);
+    for(i = 0; i < num; i++)
+      line[i] = '#';
+    line[i] = '\0';
+    snprintf(format, sizeof(format), "%%-%ds %%5.1f%%%%", barwidth);
+    snprintf(outline, sizeof(outline), format, line, percent);
+    fprintf(bar->out, "\r%s", outline);
+  }
+  fflush(bar->out);
+  bar->prev = point;
+
+  return 0;
+}
+
+void progressbarinit(struct ProgressData *bar,
+                     struct Configurable *config)
+{
+#ifdef __EMX__
+  /* 20000318 mgs */
+  int scr_size[2];
+#endif
+  char *colp;
+
+  memset(bar, 0, sizeof(struct ProgressData));
+
+  /* pass this through to progress function so
+   * it can display progress towards total file
+   * not just the part that's left. (21-may-03, dbyron) */
+  if(config->use_resume)
+    bar->initial_size = config->resume_from;
+
+/* TODO: get terminal width through ansi escapes or something similar.
+   try to update width when xterm is resized... - 19990617 larsa */
+#ifndef __EMX__
+  /* 20000318 mgs
+   * OS/2 users most likely won't have this env var set, and besides that
+   * we're using our own way to determine screen width */
+  colp = curlx_getenv("COLUMNS");
+  if(colp) {
+    char *endptr;
+    long num = strtol(colp, &endptr, 10);
+    if((endptr != colp) && (endptr == colp + strlen(colp)) && (num > 0))
+      bar->width = (int)num;
+    else
+      bar->width = 79;
+    curl_free(colp);
+  }
+  else
+    bar->width = 79;
+#else
+  /* 20000318 mgs
+   * We use this emx library call to get the screen width, and subtract
+   * one from what we got in order to avoid a problem with the cursor
+   * advancing to the next line if we print a string that is as long as
+   * the screen is wide. */
+
+  _scrsize(scr_size);
+  bar->width = scr_size[0] - 1;
+#endif
+
+  bar->out = config->errors;
+}
+
-- 
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