Some basic implementation

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@7831 72102866-910b-0410-8b05-ffd578937521

Source/NSPageLayout.m

@@ -1,12 +1,14 @@
 /* 
    NSPageLayout.m
 
-   Description...
+   Page setup panel
 
    Copyright (C) 1996 Free Software Foundation, Inc.
 
    Author:  Scott Christley <scottc@net-community.com>
    Date: 1996
+   Author:  Fred Kiefer <fredkiefer@gmx.de>
+   Date: 2000
    
    This file is part of the GNUstep GUI Library.
 
@@ -26,9 +28,19 @@
    59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */ 
 
-#include <gnustep/gui/config.h>
+#include <AppKit/NSApplication.h>
+#include <AppKit/NSTextField.h>
+#include <AppKit/NSButton.h>
+#include <AppKit/NSPrintInfo.h>
 #include <AppKit/NSPageLayout.h>
 
+NSPageLayout *shared_instance;
+
+@interface NSPageLayout (Private)
+- (id) _initWithoutGModel;
+
+@end
+
 @implementation NSPageLayout
 
 //
@@ -48,24 +60,60 @@
 //
 + (NSPageLayout *)pageLayout
 {
-  return nil;
+  if (shared_instance == nil)
+    {
+      shared_instance = [[NSPageLayout alloc] init];
+    }
+  else
+    {
+      [shared_instance _initDefaults];
+    }
+  return shared_instance;
 }
 
 //
 // Instance methods
 //
+- (id) init
+{
+    self = [self _initWithoutGModel];
+    [self _initDefaults];
+
+    return self;
+}
+
+- (void) _initDefaults
+{
+  // use points as the default
+  _old = 1.0;
+  _new = 1.0;  
+  [super _initDefaults];
+}
 
 //
 // Running the Panel 
 //
 - (int)runModal
 {
-  return 0;
+  return [self runModalWithPrintInfo: [NSPrintInfo sharedPrintInfo]];
 }
 
 - (int)runModalWithPrintInfo:(NSPrintInfo *)pInfo
 {
-  return 0;
+/*
+  NSRunAlertPanel (NULL, @"Page Layout Panel not implemented yet",
+		   @"OK", NULL, NULL);
+*/
+  // store the print Info
+  _printInfo = pInfo;
+
+  // read the values of the print info
+  [self readPrintInfo];
+
+  [NSApp runModalForWindow: self];
+  [self orderOut: self];
+
+  return _result;
 }
 
 //
@@ -84,33 +132,94 @@
 //
 - (void)convertOldFactor:(float *)old
 	       newFactor:(float *)new
-{}
+{
+  if (old)
+    *old = _old;
+  if (new)
+    *new = _new;
+}
 
 - (void)pickedButton:(id)sender
-{}
+{
+  if ([sender tag] == NSPLOKButton)
+    {
+      // check the items if the values are positive,
+      // if not select that item and keep on running.
+      NSTextField *field;
+
+      field = [[self contentView] viewWithTag: NSPLWidthForm];
+      if ((field != nil) && ([field floatValue] <= 0.0))
+        {
+	  [field selectText: sender];  
+	  return;
+	}
+      field = [[self contentView] viewWithTag: NSPLHeightForm];
+      if ((field != nil) && ([field floatValue] <= 0.0))
+        {
+	  [field selectText: sender];  
+	  return;
+	}
+
+      _result = NSOKButton;
+    }
+  if ([sender tag] == NSPLCancelButton)
+    {
+      _result = NSOKButton;
+    }
+
+  [NSApp stopModal];
+}
 
 - (void)pickedOrientation:(id)sender
-{}
+{
+}
 
 - (void)pickedPaperSize:(id)sender
-{}
+{
+}
 
 - (void)pickedUnits:(id)sender
-{}
+{
+  NSTextField *field;
+  float new, old;
+  
+  // At this point the units have been selected but not set.
+  [self convertOldFactor:&old newFactor:&new];
+   
+  field = [[self contentView] viewWithTag: NSPLWidthForm];
+  if (field != nil)
+    {
+      // Update field based on the conversion factors.
+      [field setFloatValue:([field floatValue]*new/old)];
+    }
+
+  field = [[self contentView] viewWithTag: NSPLHeightForm];
+  if (field != nil)
+    {
+      // Update field based on the conversion factors.
+      [field setFloatValue:([field floatValue]*new/old)];
+    }
+
+  // Set the selected units.
+  _old = _new;
+}
 
 //
 // Communicating with the NSPrintInfo Object 
 //
 - (NSPrintInfo *)printInfo
 {
-  return nil;
+  return _printInfo;
 }
 
 - (void)readPrintInfo
-{}
+{
+    
+}
 
 - (void)writePrintInfo
-{}
+{
+}
 
 //
 // NSCoding protocol
@@ -128,3 +237,52 @@
 }
 
 @end
+
+@implementation NSPageLayout (Private)
+
+- (id) _initWithoutGModel
+{
+  NSRect rect = {{100,100}, {300,300}};    
+  unsigned int style = NSTitledWindowMask | NSClosableWindowMask;
+
+  self = [super initWithContentRect: rect
+			  styleMask: style
+			    backing: NSBackingStoreRetained
+			      defer: NO
+			     screen: nil];
+  if (self != nil)
+    {
+      NSButton *okButton;
+      NSButton *cancelButton;
+      NSRect rb = {{56,8}, {72,24}};
+      NSRect db = {{217,8}, {72,24}};
+      NSView *content = [self contentView];
+
+      [self setTitle: @"Page Layout"];
+
+      // cancle button
+      cancelButton = [[NSButton alloc] initWithFrame: rb];
+      [cancelButton setStringValue: @"Cancel"];
+      [cancelButton setAction: @selector(pickedButton:)];
+      [cancelButton setTarget: self];
+      [cancelButton setTag: NSPLCancelButton];
+      [content addSubview: cancelButton];
+      RELEASE(cancelButton);
+
+      // OK button
+      okButton = [[NSButton alloc] initWithFrame: db];
+      [okButton setStringValue: @"OK"];
+      [okButton setAction: @selector(pickedButton:)];
+      [okButton setTarget: self];
+      [okButton setTag: NSPLOKButton];
+      [content addSubview: okButton];
+      // make it the default button
+      [self setDefaultButtonCell: [okButton cell]];
+      RELEASE(okButton);
+    }
+
+  return self;
+}
+
+@end
+