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-
- /*
- GraphApp.m
-
- GraphApp is the delegate of the Application object. It deals with opening
- new documents as initiated by the menu commands or messages from the
- Workspace Manager.
-
- You may freely copy, distribute, and reuse the code in this example.
- NeXT disclaims any warranty of any kind, expressed or implied, as to its
- fitness for any particular use.
- */
-
- #import "Graph.h"
-
- static Window *findDocWindow(const char *name);
-
- @implementation GraphApp
-
- - appDidInit:sender {
- /*
- * If we weren't asked to open any documents at launch time, then we were
- * launched by double clicking on the application instead of a document.
- * In this case, we open up a new document for the user.
- */
- if (!NXGetDefaultValue([NXApp appName], "NXOpen") &&
- !NXGetDefaultValue([NXApp appName], "NXOpenTemp") &&
- !NXGetDefaultValue([NXApp appName], "NXServiceLaunch"))
- [self new3D:self];
- return self;
- }
-
- /*
- * Called as we are quitting. Gives the user a change to save unsaved work.
- * The Draw example has a more complete implementation of this, since it does
- * not give the user the "Cancel" option when logging out or powering off.
- */
- - appWillTerminate:sender {
- int response;
- List *windowList = [NXApp windowList];
- int count;
- Window *window;
- BOOL dirtyDocs = NO;
- id document;
- NXStringTable *stringTab;
-
- count = [windowList count];
- while (count--) {
- if ([[windowList objectAt:count] isDocEdited]) {
- dirtyDocs = YES;
- break;
- }
- }
- if (dirtyDocs) {
- stringTab = [self stringTable];
- response = NXRunAlertPanel([stringTab valueForStringKey:"quit alert title"],
- [stringTab valueForStringKey:"quit alert message"],
- [stringTab valueForStringKey:"review button"],
- [stringTab valueForStringKey:"quit button"],
- [stringTab valueForStringKey:"cancel button"]);
- if (response == NX_ALERTALTERNATE) {
- return self;
- } else if (response == NX_ALERTOTHER) {
- return nil;
- } else {
- count = [windowList count];
- while (count--) {
- window = [windowList objectAt:count];
- document = [window delegate];
- if ([document isKindOfClassNamed:"GraphDoc"] || [document isKindOfClassNamed:"Graph3DDoc"]) {
- if (![document windowWillClose:sender]) {
- return nil;
- }
- }
- }
- return self;
- }
- } else {
- return self;
- }
- }
-
- /*
- * This method is performed whenever a user double-clicks on an icon in
- * the Workspace Manager representing a Draw program document. If the file
- * is already open, it just orders its window to the front; else, it opens
- * a new graph document from the file.
- */
- - (int)app:sender openFile:(const char *)path type:(const char *)type {
- BOOL success = NO;
- Window *win;
- NXStringTable *stringTab;
-
- if (type) {
- if (win = findDocWindow(path)) {
- [win makeKeyAndOrderFront:self];
- success = YES;
- } else if (!strcmp(type, "xygraph")) {
- if ([[GraphDoc allocFromZone:[self zone]] initFromFile:path])
- success = YES;
- } else if (!strcmp(type, "xyzgraph")) {
- if ([[Graph3DDoc allocFromZone:[self zone]] initFromFile:path])
- success = YES;
- }
- }
- if (!success) {
- stringTab = [self stringTable];
- NXRunAlertPanel(
- [stringTab valueForStringKey:"open alert title"],
- [stringTab valueForStringKey:"open alert message"],
- [stringTab valueForStringKey:"ok button"],
- NULL, NULL, path);
- }
- return success;
- }
-
- /* This says we can accept any number of app:openFile:type: messages. */
- - (BOOL)appAcceptsAnotherFile:sender {
- return YES;
- }
-
- /* action method, called when the user chooses open in the menu */
- - open:sender {
- const char *const *files;
- static const char *const fileType[3] = {"xygraph", "xyzgraph", NULL};
- OpenPanel *openPanel;
- char fullName[MAXPATHLEN];
- const char *suffix;
-
- /*
- * Declare that the user can select multiple files to be opened in the
- * Open Panel. All apps should do this, since its so easy.
- */
- openPanel = [[OpenPanel new] allowMultipleFiles:YES];
-
- /* run the open panel, filtering for out types of our documents */
- if ([openPanel runModalForTypes:fileType]) {
-
- /* open all the files returned by the open panel */
- files = [openPanel filenames];
- for (files = [openPanel filenames]; files && *files; files++) {
- strcpy(fullName, [openPanel directory]);
- strcat(fullName, "/");
- strcat(fullName, *files);
- suffix = strrchr(*files, '.');
- if (suffix)
- [self app:NXApp openFile:fullName type:++suffix];
- }
- }
- return self;
- }
-
- /* action method, called when the user chooses "New 2D" in the menu */
- - new2D:sender {
- [[GraphDoc allocFromZone:[self zone]] init];
- return self;
- }
-
- /* action method, called when the user chooses "New 3D" in the menu */
- - new3D:sender {
- [[Graph3DDoc allocFromZone:[self zone]] init];
- return self;
- }
-
- /*
- * Loads the info panel from its separate nib section. We set the version
- * number in the info panel on the fly, which keeps it up to date
- * automatically. The VERS_NUM variable is created in the vers.c file, which
- * is created by the vers_string shell command as part of the build process.
- */
- - showInfoPanel:sender {
- if (!infoPanel) {
- extern char VERS_NUM[];
- [NXApp loadNibSection:"Info.nib" owner:self withNames:NO];
- if (strlen(VERS_NUM) > 0) {
- char versionBuffer[100];
- sprintf (versionBuffer, [[self stringTable] valueForStringKey:"version"], VERS_NUM);
- [versString setStringValue:versionBuffer];
- } else {
- [versString setStringValue:""];
- }
- }
- [infoPanel makeKeyAndOrderFront:self];
- return self;
- }
-
- /* Loads the help panel from its separate nib section. */
- - showHelpPanel:sender {
- if (!helpPanel)
- [NXApp loadNibSection:"Help.nib" owner:self withNames:NO];
- [helpPanel makeKeyAndOrderFront:self];
- return self;
- }
-
- /* Loads the 3D panel from its separate nib section. */
- - showThreeDPanel:sender {
- if (!threeDPanel) {
- [NXApp loadNibSection:"ThreeDPanel.nib" owner:self withNames:NO];
- /*
- * USE THIS METHOD CAREFULLY. It should only be used for panels that
- * never or rarely need to become key. Usually this is because they
- * have no areas for typing (as in this case), or else the user very
- * rarely types in them (e.g., the Font panel).
- */
- [threeDPanel setBecomeKeyOnlyIfNeeded:YES];
- }
- [threeDPanel orderFront:self];
- return self;
- }
-
- /* Returns the 3D Panel */
- - (ThreeDPanel *)threeDPanel {
- return threeDPanel;
- }
-
- /* Returns the string table */
- - (NXStringTable *)stringTable {
- char path[MAXPATHLEN+1];
-
- if (!stringTable && [[NXBundle mainBundle] getPath:path forResource:"Graph" ofType:"strings"]) {
- stringTable = [[NXStringTable allocFromZone:[self zone]] init];
- [stringTable readFromFile:path];
- }
- return stringTable;
- }
-
- /*
- * Returns the window for a given filename, if open. We go through the window
- * list looking for an window with the given file open. Since there are many
- * more windows in the window list than our document windows (panels, NXImage
- * caches, the app icon,...), we check the delegate to know if its a document
- * window. We use realpath() to make sure we aren't fooled by symbolic links
- * that lead to a file already opened via a different path.
- */
- static Window *findDocWindow(const char *name) {
- int count;
- id document;
- Window *window;
- List *windowList;
- const char *realPath;
- const char *otherRealPath;
- char realPathBuf[MAXPATHLEN+1];
-
- windowList = [NXApp windowList];
- count = [windowList count];
- realPath = realpath(name, realPathBuf) ? realPathBuf : name;
- while (count--) {
- window = [windowList objectAt:count];
- document = [window delegate];
- if (document && ([document isKindOf:[GraphDoc class]]
- || [document isKindOf:[Graph3DDoc class]])) {
- otherRealPath = [document realFilename];
- if (otherRealPath && !strcmp(otherRealPath, realPath))
- return window;
- }
- }
- return nil;
- }
-
- @end
-