1 files changed, 177 insertions, 0 deletions
diff --git a/html/download/im_view.c b/html/download/im_view.c
new file mode 100644
index 0000000..d9e2b72
--- /dev/null
+++ b/html/download/im_view.c
@@ -0,0 +1,177 @@
+/* IM 3 sample that shows an image.
+
+  Needs "im.lib", "iup.lib", "cd.lib" and "cdiup.lib".
+
+  Usage: im_view <file_name>
+
+    Example: im_view test.tif
+
+  Click on image to open another file.
+*/
+
+#include <iup.h>
+#include <cd.h>
+#include <cdiup.h>
+#include <im.h>
+#include <im_image.h>
+
+#include <stdio.h>
+#include <string.h>
+
+static int disable_repaint = 0; /* used to optimize repaint, while opening a new file */
+
+static void PrintError(int error)
+{
+  switch (error)
+  {
+  case IM_ERR_OPEN:
+    printf("Error Opening File.\n");
+    break;
+  case IM_ERR_MEM:
+    printf("Insuficient memory.\n");
+    break;
+  case IM_ERR_ACCESS:
+    printf("Error Accessing File.\n");
+    break;
+  case IM_ERR_DATA:
+    printf("Image type not Suported.\n");
+    break;
+  case IM_ERR_FORMAT:
+    printf("Invalid Format.\n");
+    break;
+  case IM_ERR_COMPRESS:
+    printf("Invalid or unsupported compression.\n");
+    break;
+  default:
+    printf("Unknown Error.\n");
+  }
+}
+
+static int cbRepaint(Ihandle* iup_canvas)
+{
+  cdCanvas* cd_canvas = (cdCanvas*)IupGetAttribute(iup_canvas, "cdCanvas");
+  imImage* image = (imImage*)IupGetAttribute(iup_canvas, "imImage");
+
+  if (!cd_canvas || disable_repaint)
+    return IUP_DEFAULT;
+
+  cdActivate(cd_canvas);
+  cdClear();
+
+  if (!image)
+    return IUP_DEFAULT;
+
+  imcdCanvasPutImage(cd_canvas, image, 0, 0, image->width, image->height, 0, 0, 0, 0);
+  
+  cdFlush();
+  
+  return IUP_DEFAULT;
+}
+                              
+static void ShowImage(char* file_name, Ihandle* iup_dialog)
+{
+  int error;
+  imImage* image = (imImage*)IupGetAttribute(iup_dialog, "imImage");
+  if (image) imImageDestroy(image);
+  IupSetAttribute(iup_dialog, "imImage", NULL);
+
+  image = imFileImageLoadBitmap(file_name, 0, &error);
+  if (!image) 
+  {
+    PrintError(error);
+    return;
+  }
+
+  IupSetAttribute(iup_dialog, "imImage", (char*)image);
+  IupStoreAttribute(iup_dialog, "TITLE", file_name);
+
+  cbRepaint(iup_dialog); /* we can do this because canvas inherit attributes from the dialog */
+}
+
+static int cbButton(Ihandle* iup_canvas, int but, int pressed)
+{
+  char file_name[200] = "*.*";
+
+  if (but != IUP_BUTTON1 || !pressed)
+    return IUP_DEFAULT;
+  
+  disable_repaint = 1;
+  if (IupGetFile(file_name) != 0)
+  {
+    disable_repaint = 0;
+    return IUP_DEFAULT;
+  }
+
+  disable_repaint = 0;
+  ShowImage(file_name, IupGetDialog(iup_canvas));
+  
+  return IUP_DEFAULT;
+}
+
+static int cbClose(Ihandle* iup_dialog)
+{
+  cdCanvas* cd_canvas = (cdCanvas*)IupGetAttribute(iup_dialog, "cdCanvas");
+  imImage* image = (imImage*)IupGetAttribute(iup_dialog, "imImage");
+
+  if (cd_canvas) cdKillCanvas(cd_canvas);
+  if (image) imImageDestroy(image);
+
+  return IUP_CLOSE;
+}
+
+static Ihandle* CreateDialog(void)
+{
+  Ihandle *iup_dialog;
+  Ihandle *iup_canvas;
+  cdCanvas* cd_canvas;
+
+  iup_canvas = IupCanvas("do_nothing");
+  IupSetAttribute(iup_canvas, IUP_BUTTON_CB, "cbButton");
+  IupSetAttribute(iup_canvas, IUP_ACTION, "cbRepaint");
+  
+  iup_dialog = IupDialog(iup_canvas);
+  IupSetAttribute(iup_dialog, IUP_CLOSE_CB, "cbClose");
+  IupSetAttribute(iup_dialog, IUP_SIZE, "HALFxHALF");
+
+  IupSetFunction("cbRepaint", (Icallback)cbRepaint);
+  IupSetFunction("cbButton", (Icallback)cbButton);
+  IupSetFunction("cbClose", (Icallback)cbClose);
+
+  IupMap(iup_dialog);
+
+  cd_canvas = cdCreateCanvas(CD_IUP, iup_canvas);
+  IupSetAttribute(iup_dialog, "cdCanvas", (char*)cd_canvas);
+
+  return iup_dialog;
+}
+
+int main(int argc, char* argv[])
+{
+  Ihandle* dlg;
+
+  IupOpen();
+
+  dlg = CreateDialog();
+
+  IupShow(dlg);
+  
+  /* Try to get a file name from the command line. */
+  if (argc > 1)
+  {
+    ShowImage(argv[1], dlg);
+  }
+  else   
+  {
+    char file_name[1024] = "*.*";
+    if (IupGetFile(file_name) == 0)
+    {
+      ShowImage(file_name, dlg);
+    }
+  }
+                                   
+  IupMainLoop();
+  IupDestroy(dlg);
+  IupClose();
+
+  return 1;
+}