1 files changed, 149 insertions, 0 deletions
diff --git a/debian/fireflies/fireflies-2.08/libgfx/tests/t-glimg.cxx b/debian/fireflies/fireflies-2.08/libgfx/tests/t-glimg.cxx
new file mode 100644
index 00000000..706441c2
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+++ b/debian/fireflies/fireflies-2.08/libgfx/tests/t-glimg.cxx
@@ -0,0 +1,149 @@
+/************************************************************************
+
+  This is a very simplistic image viewer.  It uses libgfx routines to
+  read a set of image files specified on the command line.  These images
+  are then displayed in a window using OpenGL image operations.
+
+  by Michael Garland, 2000.
+  
+  $Id: t-glimg.cxx 426 2004-09-27 04:34:55Z garland $
+
+ ************************************************************************/
+
+#include <gfx/gfx.h>
+#include <gfx/gui.h>
+#include <gfx/raster.h>
+
+#include <string>
+#include <vector>
+#include <FL/filename.H>
+
+class GUI : public MxGUI
+{
+public:
+    std::vector<ByteRaster *> images;
+    std::vector<std::string> image_names;
+    int current_image;
+
+    virtual ~GUI();
+
+    virtual void update_animation();
+    virtual void cmdline_file(const char *file);
+    virtual void setup_for_drawing();
+    virtual void draw_contents();
+
+    void set_image(int i);
+};
+
+GUI gui;
+
+GUI::~GUI()
+{
+    for(int i=0; i<images.size(); i++)
+	if( images[i] )
+	    delete images[i];
+}
+
+static void cb_image(Fl_Widget *, long i)
+	{ gui.set_image(i); gui.canvas->redraw(); }
+
+void GUI::set_image(int i)
+{
+    current_image = i;
+
+    if(current_image<0 || current_image>=images.size()) return;
+    ByteRaster *img = images[current_image];
+
+    int width = img->width();
+    int height = img->height();
+
+    gui.status(image_names[current_image].c_str());
+
+    if( width!=canvas->w() || height!=canvas->h() )
+    {
+	unlock_size();
+	resize_canvas(width, height);
+	lock_size();
+    }
+}
+
+void GUI::cmdline_file(const char *namestring)
+{
+    if(!namestring) return;	// Don't support reading from stdin
+
+    static std::string img_menu("&Images/");
+    std::string filename(fl_filename_name(namestring)); // Strip directories
+
+    ByteRaster *img = read_image(namestring);
+    if( img )
+    {
+	int id = images.size();
+	images.push_back(img);
+	image_names.push_back(namestring);
+
+	int key = id<9 ? FL_CTRL+'1'+id : 0;
+
+
+	gui.menu_bar->add((img_menu+filename).c_str(), key,
+			  (Fl_Callback *)cb_image, (void *)id, FL_MENU_RADIO);
+    }
+}
+
+void GUI::update_animation()
+{
+    set_image((current_image+1) % images.size());
+}
+
+void GUI::setup_for_drawing()
+{
+    glClearColor(0.9f, 0.0f, 0.0f, 0.0f);
+    glDisable(GL_DEPTH_TEST);
+    glDisable(GL_LIGHTING);
+    glPixelZoom(1.0f, -1.0f);
+
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+}
+
+static void draw_image(const ByteRaster *img)
+{
+    GLenum format;
+    if(img->channels()==1)       format = GL_LUMINANCE;
+    else if(img->channels()==3)  format = GL_RGB;
+    else if(img->channels()==4)  format = GL_RGBA;
+    else                         return; // Don't draw unsupported formats
+
+    glPushAttrib(GL_PIXEL_MODE_BIT);
+      glRasterPos2f(0, img->height());
+      glDrawPixels(img->width(), img->height(),
+		   format, GL_UNSIGNED_BYTE, img->head());
+    glPopAttrib();
+
+}
+
+void GUI::draw_contents()
+{
+    glClear(GL_COLOR_BUFFER_BIT);
+
+    if(current_image<0 || current_image>=images.size()) return;
+    ByteRaster *img = images[current_image];
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    gluOrtho2D(0, img->width(), 0, img->height());
+
+    draw_image(img);
+}
+
+int main(int argc, char **argv)
+{
+    gui.initialize(argc, argv);
+    if(gui.images.size() == 0)  return 0; // Exit if no images read
+
+    gui.title("OpenGL Image Viewer");
+
+    gui.default_fps = 1.0f;
+    gui.set_image(0);
+
+    return gui.run();
+}