Initial release of Maemo 5 port of gnuplot

[gnuplot] / src / OpenStep / GnuView.m

diff --git a/src/OpenStep/GnuView.m b/src/OpenStep/GnuView.m
new file mode 100644 (file)
index 0000000..8e45254
--- /dev/null
+++ b/src/OpenStep/GnuView.m
@@ -0,0 +1,101 @@
+#import "GnuView.h"
+
+@implementation GnuView
+
+static float xsize= NEXT_XMAX/10+50;
+static float ysize= NEXT_YMAX/10+50;
+
+static int printing;
+static void setprintsize();
+
+- initWithFrame:(NSRect)rects
+{
+    [super initWithFrame:rects];
+
+    PSstring = @"";
+    [self display];
+
+    return self;
+}
+
+
+/* This is here to fix NeXT bug # 21973:  failure to free D.O. memory */
+/* Note:  personally I don't think this fixes it. */
+- (void)dealloc
+{
+    [super dealloc];
+    [PSstring release];
+}
+
+- executePS:(NSString *) PStext
+{
+    if (PSstring)
+       [PSstring release];
+    PSstring = PStext;
+    [PSstring retain];
+
+    [[self window] makeKeyAndOrderFront:self];
+    [self display];
+
+    return self;
+}
+
+- (void) drawRect:(NSRect) rect
+{
+    DPSContext d;
+
+    d = DPSGetCurrentContext();
+
+    if (!printing) { /* Clear Screen */
+       PSsetgray(NSWhite);
+       NSRectFill([self bounds]);
+       [self setBoundsSize:NSMakeSize(xsize, ysize)];    /* scale to gnuplot coords */
+    }
+    else {
+       setprintsize();
+    }
+    DPSWritePostScript(d, [PSstring cString], [PSstring length]);
+    DPSFlushContext(d);
+}
+
+
+- (void)print:(id)sender
+{
+       printing = 1;
+       [super print:sender];
+       printing = 0;
+}
+
+static void setprintsize()
+{
+    DPSContext d;
+    NSSize paperSize;
+    id prInfo;
+
+    d = DPSGetCurrentContext();
+#warning PrintingConversion:  The current PrintInfo object now depends on context. '[NSPrintInfo sharedPrintInfo]' used to be '[NSApp printInfo]'. This might want to be [[NSPrintOperation currentOperation] printInfo] or possibly [[PageLayout new] printInfo].
+
+    prInfo = [NSPrintInfo sharedPrintInfo];
+    paperSize = [prInfo paperSize];
+
+    DPSPrintf(d, "grestore\ngrestore\ngrestore\n");
+
+    if ([prInfo orientation] == NSLandscapeOrientation) {
+        DPSPrintf(d, "-90 rotate\n");
+        DPSPrintf(d, "%g 0 translate\n", -1.0 * paperSize.width);
+        DPSPrintf(d, "0 %g translate\n", paperSize.height/20);
+    }
+    else {
+        DPSPrintf(d, "%g %g scale\n", paperSize.width/paperSize.height, paperSize.height/paperSize.width);
+    }
+
+    DPSPrintf(d, "gsave\ngsave\n");
+
+    DPSFlushContext(d);
+
+    return;
+}
+
+@end
+
+