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authorBent Bisballe Nyeng <deva@aasimon.org>2020-12-29 16:09:43 +0100
committerBent Bisballe Nyeng <deva@aasimon.org>2020-12-29 16:39:54 +0100
commit645250e1cd8ce9bc1faea599df7a1b05836bfeb8 (patch)
treec6311afab3900d2dd2aecbfbe1ac348d0e48c428 /dggui/resource.cc
parentdce64999d3325c5b55499d6ba657066efa48fbff (diff)
Split UI code into application/plugin UI and UI library.
Diffstat (limited to 'dggui/resource.cc')
-rw-r--r--dggui/resource.cc194
1 files changed, 194 insertions, 0 deletions
diff --git a/dggui/resource.cc b/dggui/resource.cc
new file mode 100644
index 0000000..52aca0a
--- /dev/null
+++ b/dggui/resource.cc
@@ -0,0 +1,194 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * resource.cc
+ *
+ * Sun Mar 17 19:38:04 CET 2013
+ * Copyright 2013 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of DrumGizmo.
+ *
+ * DrumGizmo is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * DrumGizmo is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with DrumGizmo; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "resource.h"
+
+#include <hugin.hpp>
+#include <cstdio>
+#include <climits>
+
+#include <platform.h>
+
+#if DG_PLATFORM != DG_PLATFORM_WINDOWS
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#endif
+
+// rcgen generated file containing rc_data declaration.
+#include "resource_data.h"
+
+extern const rc_data_t* rc_data;
+
+namespace GUI
+{
+
+// TODO: Replace with std::filesystem::is_regular_file once we update the
+// compiler to require C++17
+static bool pathIsFile(const std::string& path)
+{
+#if DG_PLATFORM == DG_PLATFORM_WINDOWS
+ return (GetFileAttributesA(path.data()) & FILE_ATTRIBUTE_DIRECTORY) == 0;
+#else
+ struct stat s;
+ if(stat(path.data(), &s) != 0)
+ {
+ return false; // error
+ }
+
+ return (s.st_mode & S_IFREG) != 0; // s.st_mode & S_IFDIR => dir
+#endif
+}
+
+// Internal resources start with a colon.
+static bool nameIsInternal(const std::string& name)
+{
+ return name.size() && (name[0] == ':');
+}
+
+Resource::Resource(const std::string& name)
+{
+ isValid = false;
+
+ if(nameIsInternal(name))
+ {
+ // Use internal resource:
+
+ // Find internal resource in rc_data.
+ const rc_data_t* p = rc_data;
+ while(p && *p->name) // last entry in rc_data has the name := ""
+ {
+ if(name == p->name)
+ {
+ internalData = p->data;
+ internalSize = p->size;
+ break;
+ }
+ ++p;
+ }
+
+ // We did not find the named resource.
+ if(internalData == nullptr)
+ {
+ ERR(rc, "Could not find '%s'\n", name.c_str());
+ return;
+ }
+
+ isInternal = true;
+ }
+ else
+ {
+ if(!pathIsFile(name))
+ {
+ return;
+ }
+
+ // Read from file:
+ std::FILE *fp = std::fopen(name.data(), "rb");
+ if(!fp)
+ {
+ return;
+ }
+
+ // Get the file size
+ if(std::fseek(fp, 0, SEEK_END) == -1)
+ {
+ std::fclose(fp);
+ return;
+ }
+
+ long filesize = std::ftell(fp);
+
+ // Apparently fseek doesn't fail if fp points to a directory that has been
+ // opened (which doesn't fail either!!) and ftell will then fail by either
+ // returning -1 or LONG_MAX
+ if(filesize == -1L || filesize == LONG_MAX)
+ {
+ std::fclose(fp);
+ return;
+ }
+
+ // Reserve space in the string for the data.
+ externalData.reserve(filesize);
+
+ // Rewind and read...
+ std::rewind(fp);
+
+ char buffer[32];
+ while(!std::feof(fp))
+ {
+ size_t size = std::fread(buffer, 1, sizeof(buffer), fp);
+ externalData.append(buffer, size);
+ }
+
+ std::fclose(fp);
+
+ isInternal = false;
+ }
+
+ isValid = true;
+}
+
+const char *Resource::data()
+{
+ if(isValid == false)
+ {
+ return nullptr;
+ }
+
+ if(isInternal)
+ {
+ return internalData;
+ }
+ else
+ {
+ return externalData.data();
+ }
+}
+
+size_t Resource::size()
+{
+ if(isValid == false)
+ {
+ return 0;
+ }
+
+ if(isInternal)
+ {
+ return internalSize;
+ }
+ else
+ {
+ return externalData.length();
+ }
+}
+
+bool Resource::valid()
+{
+ return isValid;
+}
+
+} // GUI::