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Add file dialog

master
Macoy Madson 5 months ago
parent
commit
9e35433f71
  1. 27
      src/FileDialog.cake
  2. 265
      src/noc_file_dialog.h

27
src/FileDialog.cake

@ -0,0 +1,27 @@
;; Open system file open/save dialogs
;; On Linux, you must also define 'Enable-GTK-File-Dialog because it's a big dynamic link dependency
(comptime-cond
('Unix
(comptime-cond
('Enable-GTK-File-Dialog
(export-and-evaluate
;; Gnome GTK
(add-c-search-directory-module "/usr/include/gtk-3.0")
(add-c-search-directory-module "/usr/include/pango-1.0")
(add-c-search-directory-module "/usr/include/harfbuzz")
(add-c-search-directory-module "/usr/include/cairo")
(add-c-search-directory-module "/usr/include/gdk-pixbuf-2.0")
(add-c-search-directory-module "/usr/include/atk-1.0")
(add-c-search-directory-module "/usr/include/glib-2.0")
;; For glibconfig.h, which is auto-generated for each platform
(add-c-search-directory-module "/usr/lib/x86_64-linux-gnu/glib-2.0/include")
(add-c-search-directory-module "/usr/lib/aarch64-linux-gnu/glib-2.0/include"))
(add-library-dependency "glib-2.0" "gio-2.0" "gobject-2.0" "gtk-3")
(c-preprocessor-define NOC_FILE_DIALOG_GTK))))
('Windows
(c-preprocessor-define NOC_FILE_DIALOG_WIN32)))
(c-import &with-decls "noc_file_dialog.h")
(c-preprocessor-define NOC_FILE_DIALOG_IMPLEMENTATION)
(c-import "noc_file_dialog.h")

265
src/noc_file_dialog.h

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/* noc_file_dialog library
*
* Copyright (c) 2015 Guillaume Chereau <guillaume@noctua-software.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
/* A portable library to create open and save dialogs on linux, osx and
* windows.
*
* The library define a single function : noc_file_dialog_open.
* With three different implementations.
*
* Usage:
*
* The library does not automatically select the implementation, you need to
* define one of those macros before including this file:
*
* NOC_FILE_DIALOG_GTK
* NOC_FILE_DIALOG_WIN32
* NOC_FILE_DIALOG_OSX
*/
enum {
NOC_FILE_DIALOG_OPEN = 1 << 0, // Create an open file dialog.
NOC_FILE_DIALOG_SAVE = 1 << 1, // Create a save file dialog.
NOC_FILE_DIALOG_DIR = 1 << 2, // Open a directory.
NOC_FILE_DIALOG_OVERWRITE_CONFIRMATION = 1 << 3,
};
// There is a single function defined.
/* flags : union of the NOC_FILE_DIALOG_XXX masks.
* filters : a list of strings separated by '\0' of the form:
* "name1 reg1 name2 reg2 ..."
* The last value is followed by two '\0'. For example,
* to filter png and jpeg files, you can use:
* "png\0*.png\0jpeg\0*.jpeg\0"
* You can also separate patterns with ';':
* "jpeg\0*.jpg;*.jpeg\0"
* Set to NULL for no filter.
* default_path : the default file to use or NULL.
* default_name : the default file name to use or NULL.
*
* The function return a C string. There is no need to free it, as it is
* managed by the library. The string is valid until the next call to
* no_dialog_open. If the user canceled, the return value is NULL.
*/
const char *noc_file_dialog_open(int flags,
const char *filters,
const char *default_path,
const char *default_name);
#ifdef NOC_FILE_DIALOG_IMPLEMENTATION
#include <stdlib.h>
#include <string.h>
static char *g_noc_file_dialog_ret = NULL;
#ifdef NOC_FILE_DIALOG_GTK
#include <gtk/gtk.h>
const char *noc_file_dialog_open(int flags,
const char *filters,
const char *default_path,
const char *default_name)
{
GtkWidget *dialog;
GtkFileFilter *filter;
GtkFileChooser *chooser;
GtkFileChooserAction action;
gint res;
char buf[128], *patterns;
action = flags & NOC_FILE_DIALOG_SAVE ? GTK_FILE_CHOOSER_ACTION_SAVE :
GTK_FILE_CHOOSER_ACTION_OPEN;
if (flags & NOC_FILE_DIALOG_DIR)
action = GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER;
gtk_init_check(NULL, NULL);
dialog = gtk_file_chooser_dialog_new(
flags & NOC_FILE_DIALOG_SAVE ? "Save File" : "Open File",
NULL,
action,
"_Cancel", GTK_RESPONSE_CANCEL,
flags & NOC_FILE_DIALOG_SAVE ? "_Save" : "_Open", GTK_RESPONSE_ACCEPT,
NULL );
chooser = GTK_FILE_CHOOSER(dialog);
if (flags & NOC_FILE_DIALOG_OVERWRITE_CONFIRMATION)
gtk_file_chooser_set_do_overwrite_confirmation(chooser, TRUE);
if (default_path)
gtk_file_chooser_set_filename(chooser, default_path);
if (default_name)
gtk_file_chooser_set_current_name(chooser, default_name);
while (filters && *filters) {
filter = gtk_file_filter_new();
gtk_file_filter_set_name(filter, filters);
filters += strlen(filters) + 1;
// Split the filter pattern with ';'.
strcpy(buf, filters);
buf[strlen(buf)] = '\0';
for (patterns = buf; *patterns; patterns++)
if (*patterns == ';') *patterns = '\0';
patterns = buf;
while (*patterns) {
gtk_file_filter_add_pattern(filter, patterns);
patterns += strlen(patterns) + 1;
}
gtk_file_chooser_add_filter(chooser, filter);
filters += strlen(filters) + 1;
}
res = gtk_dialog_run(GTK_DIALOG(dialog));
free(g_noc_file_dialog_ret);
g_noc_file_dialog_ret = NULL;
if (res == GTK_RESPONSE_ACCEPT)
g_noc_file_dialog_ret = gtk_file_chooser_get_filename(chooser);
gtk_widget_destroy(dialog);
while (gtk_events_pending()) gtk_main_iteration();
return g_noc_file_dialog_ret;
}
#endif
#ifdef NOC_FILE_DIALOG_WIN32
#include <windows.h>
#include <commdlg.h>
const char *noc_file_dialog_open(int flags,
const char *filters,
const char *default_path,
const char *default_name)
{
OPENFILENAME ofn; // common dialog box structure
char szFile[260]; // buffer for file name
int ret;
// init default file name
if (default_name)
strncpy(szFile, default_name, sizeof(szFile) - 1);
else
szFile[0] = '\0';
ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.lpstrFile = szFile;
ofn.nMaxFile = sizeof(szFile);
ofn.lpstrFilter = filters;
ofn.nFilterIndex = 1;
ofn.lpstrFileTitle = NULL;
ofn.nMaxFileTitle = 0;
ofn.lpstrInitialDir = (LPSTR)default_path;
ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | OFN_NOCHANGEDIR;
if (flags & NOC_FILE_DIALOG_OPEN)
ret = GetOpenFileName(&ofn);
else
ret = GetSaveFileName(&ofn);
free(g_noc_file_dialog_ret);
g_noc_file_dialog_ret = ret ? strdup(szFile) : NULL;
return g_noc_file_dialog_ret;
}
#endif
#ifdef NOC_FILE_DIALOG_OSX
#include <AppKit/AppKit.h>
const char *noc_file_dialog_open(int flags,
const char *filters,
const char *default_path,
const char *default_name)
{
NSURL *url;
const char *utf8_path;
NSSavePanel *panel;
NSOpenPanel *open_panel;
NSMutableArray *types_array;
NSURL *default_url;
char buf[128], *patterns;
// XXX: I don't know about memory management with cococa, need to check
// if I leak memory here.
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
if (flags & NOC_FILE_DIALOG_OPEN) {
panel = open_panel = [NSOpenPanel openPanel];
} else {
panel = [NSSavePanel savePanel];
}
if (flags & NOC_FILE_DIALOG_DIR) {
[open_panel setCanChooseDirectories:YES];
[open_panel setCanChooseFiles:NO];
}
if (default_path) {
default_url = [NSURL fileURLWithPath:
[NSString stringWithUTF8String:default_path]];
[panel setDirectoryURL:default_url];
[panel setNameFieldStringValue:default_url.lastPathComponent];
}
if (filters) {
types_array = [NSMutableArray array];
while (*filters) {
filters += strlen(filters) + 1; // skip the name
// Split the filter pattern with ';'.
strcpy(buf, filters);
buf[strlen(buf) + 1] = '\0';
for (patterns = buf; *patterns; patterns++)
if (*patterns == ';') *patterns = '\0';
patterns = buf;
while (*patterns) {
assert(strncmp(patterns, "*.", 2) == 0);
patterns += 2; // Skip the "*."
[types_array addObject:[NSString stringWithUTF8String: patterns]];
patterns += strlen(patterns) + 1;
}
filters += strlen(filters) + 1;
}
[panel setAllowedFileTypes:types_array];
}
free(g_noc_file_dialog_ret);
g_noc_file_dialog_ret = NULL;
if ( [panel runModal] == NSModalResponseOK ) {
url = [panel URL];
utf8_path = [[url path] UTF8String];
g_noc_file_dialog_ret = strdup(utf8_path);
}
[pool release];
return g_noc_file_dialog_ret;
}
#endif
#endif
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