From 29ffdb1136d0c5926cf920b874db93421ac7c75d Mon Sep 17 00:00:00 2001
From: Johannes Hofmann <Johannes.Hofmann@gmx.de>
Date: Thu, 26 Mar 2009 23:14:04 +0100
Subject: add ScreenDump

---
 src/GipfelWidget.H |  3 +++
 src/Makefile.am    |  4 +++-
 src/ScreenDump.H   | 25 +++++++++++++++++++++++++
 src/ScreenDump.cxx | 42 ++++++++++++++++++++++++++++++++++++++++++
 src/gipfel.cxx     | 16 ++++++++++++----
 5 files changed, 85 insertions(+), 5 deletions(-)
 create mode 100644 src/ScreenDump.H
 create mode 100644 src/ScreenDump.cxx

(limited to 'src')

diff --git a/src/GipfelWidget.H b/src/GipfelWidget.H
index 85de338..57ce337 100644
--- a/src/GipfelWidget.H
+++ b/src/GipfelWidget.H
@@ -7,8 +7,11 @@
 #ifndef GipfelWidget_H
 #define GipfelWidget_H
 
+#include <stdio.h>
+
 #include <FL/Fl_Group.H>
 #include <FL/Fl_Menu_Button.H>
+
 #include "Panorama.H"
 #include "ImageMetaData.H"
 
diff --git a/src/Makefile.am b/src/Makefile.am
index df932a8..acf66f5 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -17,7 +17,8 @@ gipfel_SOURCES = \
 	JPEGOutputImage.cxx \
 	TIFFOutputImage.cxx \
 	PreviewOutputImage.cxx \
-	ImageMetaData.cxx
+	ImageMetaData.cxx \
+	ScreenDump.cxx
 
 noinst_HEADERS = \
 	GipfelWidget.H \
@@ -38,4 +39,5 @@ noinst_HEADERS = \
 	TIFFOutputImage.H \
 	PreviewOutputImage.H \
 	ImageMetaData.H \
+	ScreenDump.H \
 	util.h
diff --git a/src/ScreenDump.H b/src/ScreenDump.H
new file mode 100644
index 0000000..f527404
--- /dev/null
+++ b/src/ScreenDump.H
@@ -0,0 +1,25 @@
+//
+// Copyright 2009 Johannes Hofmann <Johannes.Hofmann@gmx.de>
+//
+// This software may be used and distributed according to the terms
+// of the GNU General Public License, incorporated herein by reference.
+
+#ifndef SCREENDUMP_H
+#define SCREENDUMP_H
+
+#include "GipfelWidget.H"
+#include "OutputImage.H"
+
+class ScreenDump {
+	private:
+		GipfelWidget *gipf;
+		unsigned char * rgb;
+
+	public:
+		ScreenDump(GipfelWidget *g);
+		~ScreenDump();
+
+		int save(const char *file);
+};
+
+#endif
diff --git a/src/ScreenDump.cxx b/src/ScreenDump.cxx
new file mode 100644
index 0000000..20a038f
--- /dev/null
+++ b/src/ScreenDump.cxx
@@ -0,0 +1,42 @@
+#include <stdlib.h>
+
+#include <FL/Fl.H>
+#include <FL/x.H>
+#include <FL/fl_draw.H>
+
+#include "JPEGOutputImage.H"
+#include "ScreenDump.H"
+
+ScreenDump::ScreenDump(GipfelWidget *g) {
+	Fl_Offscreen offscreen;
+
+	gipf = g;
+	Fl::flush();
+	offscreen = fl_create_offscreen(gipf->w(), gipf->h());
+	fl_begin_offscreen(offscreen);
+	gipf->draw();
+	rgb = fl_read_image(NULL, 0, 0, gipf->w(), gipf->h());
+	fl_end_offscreen();
+	fl_delete_offscreen(offscreen);
+}
+
+ScreenDump::~ScreenDump() {
+	free(rgb);
+}
+
+int
+ScreenDump::save(const char *file) {
+	JPEGOutputImage out(file, 95);
+
+	out.init(gipf->w(), gipf->h());
+
+	for (int y = 0; y < gipf->h(); y++) {
+		for (int x = 0; x < gipf->w(); x++) {
+			unsigned char *px = &rgb[(y * gipf->w() + x) * 3];
+			out.set_pixel(x, px[0] * 255, px[1] * 255, px[2] * 255);
+		}
+		out.next_line();
+	}
+
+	out.done();
+}
diff --git a/src/gipfel.cxx b/src/gipfel.cxx
index e6d9f49..2b665b5 100644
--- a/src/gipfel.cxx
+++ b/src/gipfel.cxx
@@ -35,6 +35,7 @@
 #include "TIFFOutputImage.H"
 #include "PreviewOutputImage.H"
 #include "Stitch.H"
+#include "ScreenDump.H"
 #include "choose_hill.H"
 #include "../config.h"
 
@@ -91,11 +92,11 @@ void set_values() {
 	i_view_height->value(gipf->get_view_height());
 	b_viewpoint->label(gipf->get_viewpoint());
 	if (gipf->projection() == ProjectionLSQ::RECTILINEAR) {
-		mb->mode(8, FL_MENU_RADIO|FL_MENU_VALUE);
-		mb->mode(9, FL_MENU_RADIO);
-	} else {
 		mb->mode(9, FL_MENU_RADIO|FL_MENU_VALUE);
-		mb->mode(8, FL_MENU_RADIO);
+		mb->mode(10, FL_MENU_RADIO);
+	} else {
+		mb->mode(10, FL_MENU_RADIO|FL_MENU_VALUE);
+		mb->mode(9, FL_MENU_RADIO);
 	}
 
 	gipf->get_distortion_params(&k0, &k1, &x0);
@@ -136,6 +137,12 @@ void save_cb() {
 			fl_message("ERROR: Saving image %s failed.", file);	
 }
 
+void dump_cb(Fl_Widget * o, void*) {
+	ScreenDump dmp(gipf);
+
+	dmp.save("/tmp/dmp.jpg");
+}
+
 void focal_length_cb(Fl_Slider* o, void*) {
 	gipf->set_focal_length_35mm(o->value());
 }
@@ -273,6 +280,7 @@ void fill_menubar(Fl_Menu_Bar* mb) {
 	mb->add("&File/&Save Image", FL_CTRL+'s', (Fl_Callback*)save_cb);
 	mb->add("&File/Choose &Viewpoint", FL_CTRL+'v', (Fl_Callback*)viewpoint_cb);
 	mb->add("&File/Load &Track", FL_CTRL+'t', (Fl_Callback*)track_cb);
+	mb->add("&File/Screen &Dump", FL_CTRL+'d', (Fl_Callback*)dump_cb);
 	mb->add("&File/&Quit", FL_CTRL+'q', (Fl_Callback*)quit_cb);
 
 	mb->add("&Projection/Normal Projection", 0, (Fl_Callback *)proj_cb, 
-- 
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