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#
#
# Nimrod's Runtime Library
# (c) Copyright 2008 Andreas Rumpf
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
## This module implements portable dialogs for Nimrod; the implementation
## builds on the GTK interface. On Windows, native dialogs are shown if
## appropriate.
import
glib2, gtk2
when defined(Windows):
import windows, ShellAPI, os
type
PWindow* = PGtkWindow ## A shortcut for a GTK window.
proc info*(window: PWindow, msg: string) =
## Shows an information message to the user. The process waits until the
## user presses the OK button.
when defined(Windows):
discard MessageBoxA(0, msg, "Information", MB_OK or MB_ICONINFORMATION)
else:
var dialog = GTK_DIALOG(gtk_message_dialog_new(window,
GTK_DIALOG_MODAL or GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_INFO, GTK_BUTTONS_OK, "%s", cstring(msg)))
gtk_window_set_title(dialog, "Information")
discard gtk_dialog_run(dialog)
gtk_widget_destroy(dialog)
proc warning*(window: PWindow, msg: string) =
## Shows a warning message to the user. The process waits until the user
## presses the OK button.
when defined(Windows):
discard MessageBoxA(0, msg, "Warning", MB_OK or MB_ICONWARNING)
else:
var dialog = GTK_DIALOG(gtk_message_dialog_new(window,
GTK_DIALOG_MODAL or GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_WARNING, GTK_BUTTONS_OK, "%s", cstring(msg)))
gtk_window_set_title(dialog, "Warning")
discard gtk_dialog_run(dialog)
gtk_widget_destroy(dialog)
proc error*(window: PWindow, msg: string) =
## Shows an error message to the user. The process waits until the user
## presses the OK button.
when defined(Windows):
discard MessageBoxA(0, msg, "Error", MB_OK or MB_ICONERROR)
else:
var dialog = GTK_DIALOG(gtk_message_dialog_new(window,
GTK_DIALOG_MODAL or GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", cstring(msg)))
gtk_window_set_title(dialog, "Error")
discard gtk_dialog_run(dialog)
gtk_widget_destroy(dialog)
proc ChooseFileToOpen*(window: PWindow, root: string = ""): string =
## Opens a dialog that requests a filename from the user. Returns ""
## if the user closed the dialog without selecting a file. On Windows,
## the native dialog is used, else the GTK dialog is used.
when defined(Windows):
var
opf: TOPENFILENAME
buf: array [0..2047, char]
opf.lStructSize = sizeof(opf)
if root.len > 0:
opf.lpstrInitialDir = root
opf.lpstrFilter = "All Files\0*.*\0\0"
opf.flags = OFN_FILEMUSTEXIST
opf.lpstrFile = buf
opf.nMaxFile = sizeof(buf)
var res = GetOpenFileName(addr(opf))
if res != 0:
result = $buf
else:
result = ""
else:
var
chooser: PGtkDialog
chooser = GTK_DIALOG(gtk_file_chooser_dialog_new("Open File", window,
GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_OK, nil))
if root.len > 0:
discard gtk_file_chooser_set_current_folder(chooser, root)
if gtk_dialog_run(chooser) == cint(GTK_RESPONSE_OK):
var x = gtk_file_chooser_get_filename(chooser)
result = $x
g_free(x)
else:
result = ""
gtk_widget_destroy(chooser)
proc ChooseFilesToOpen*(window: PWindow, root: string = ""): seq[string] =
## Opens a dialog that requests filenames from the user. Returns ``@[]``
## if the user closed the dialog without selecting a file. On Windows,
## the native dialog is used, else the GTK dialog is used.
when defined(Windows):
var
opf: TOPENFILENAME
buf: array [0..2047*4, char]
opf.lStructSize = sizeof(opf)
if root.len > 0:
opf.lpstrInitialDir = root
opf.lpstrFilter = "All Files\0*.*\0\0"
opf.flags = OFN_FILEMUSTEXIST or OFN_ALLOWMULTISELECT or OFN_EXPLORER
opf.lpstrFile = buf
opf.nMaxFile = sizeof(buf)
var res = GetOpenFileName(addr(opf))
result = @[]
if res != 0:
# parsing the result is horrible:
var
i = 0
s: string
path = ""
while buf[i] != '\0':
add(path, buf[i])
inc(i)
inc(i)
if buf[i] != '\0':
while true:
s = ""
while buf[i] != '\0':
add(s, buf[i])
inc(i)
add(result, s)
inc(i)
if buf[i] == '\0': break
for i in 0..result.len-1: result[i] = os.joinPath(path, result[i])
else:
var
chooser: PGtkDialog
chooser = GTK_DIALOG(gtk_file_chooser_dialog_new("Open Files", window,
GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_OK, nil))
if root.len > 0:
discard gtk_file_chooser_set_current_folder(chooser, root)
gtk_file_chooser_set_select_multiple(chooser, true)
result = @[]
if gtk_dialog_run(chooser) == cint(GTK_RESPONSE_OK):
var L = gtk_file_chooser_get_filenames(chooser)
var it = L
while it != nil:
add(result, $cast[cstring](it.data))
g_free(it.data)
it = it.next
g_slist_free(L)
gtk_widget_destroy(chooser)
proc ChooseFileToSave*(window: PWindow, root: string = ""): string =
## Opens a dialog that requests a filename to save to from the user.
## Returns "" if the user closed the dialog without selecting a file.
## On Windows, the native dialog is used, else the GTK dialog is used.
when defined(Windows):
var
opf: TOPENFILENAME
buf: array [0..2047, char]
opf.lStructSize = sizeof(opf)
if root.len > 0:
opf.lpstrInitialDir = root
opf.lpstrFilter = "All Files\0*.*\0\0"
opf.flags = OFN_OVERWRITEPROMPT
opf.lpstrFile = buf
opf.nMaxFile = sizeof(buf)
var res = GetSaveFileName(addr(opf))
if res != 0:
result = $buf
else:
result = ""
else:
var
chooser: PGtkDialog
chooser = GTK_DIALOG(gtk_file_chooser_dialog_new("Save File", window,
GTK_FILE_CHOOSER_ACTION_SAVE,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_OK, nil))
if root.len > 0:
discard gtk_file_chooser_set_current_folder(chooser, root)
gtk_file_chooser_set_do_overwrite_confirmation(chooser, true)
if gtk_dialog_run(chooser) == cint(GTK_RESPONSE_OK):
var x = gtk_file_chooser_get_filename(chooser)
result = $x
g_free(x)
else:
result = ""
gtk_widget_destroy(chooser)
proc ChooseDir*(window: PWindow, root: string = ""): string =
## Opens a dialog that requests a directory from the user.
## Returns "" if the user closed the dialog without selecting a directory.
## On Windows, the native dialog is used, else the GTK dialog is used.
when defined(Windows):
var
lpItemID: PItemIDList
BrowseInfo: TBrowseInfo
DisplayName: array [0..MAX_PATH, char]
TempPath: array [0..MAX_PATH, char]
Result = ""
#BrowseInfo.hwndOwner = Application.Handle
BrowseInfo.pszDisplayName = DisplayName
BrowseInfo.ulFlags = 1 #BIF_RETURNONLYFSDIRS
lpItemID = SHBrowseForFolder(cast[LPBrowseInfo](addr(BrowseInfo)))
if lpItemId != nil:
discard SHGetPathFromIDList(lpItemID, TempPath)
Result = $TempPath
discard GlobalFreePtr(lpItemID)
else:
var
chooser: PGtkDialog
chooser = GTK_DIALOG(gtk_file_chooser_dialog_new("Select Directory", window,
GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_OK, nil))
if root.len > 0:
discard gtk_file_chooser_set_current_folder(chooser, root)
if gtk_dialog_run(chooser) == cint(GTK_RESPONSE_OK):
var x = gtk_file_chooser_get_filename(chooser)
result = $x
g_free(x)
else:
result = ""
gtk_widget_destroy(chooser)
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