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Monster Media 1993 #2
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lview20.zip
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WHATS.NEW
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1993-08-04
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LView version 2.0 Copyright Leonardo Haddad Loureiro
Version 2.0 news:
NEW FEATURES:
New commands "File/Print", "File/Printer setup...", "Options/Printer Options",
and new option "Options/Drop to: Printer", allow for printing images
interactively or in batch.
New command Edit/Interactive RGB, allows the user to define mappings for
Red, Green and Blue pixel components. These mappings can be defined
either by "drawing" their curves, or by specifying a calculation
Function. Red, Green and Blue can be edited separatly.
New command "Edit/GrayScale" to transform, after confirmation, any loaded
image from color to grayscale representation.
New command "Edit/Negative" to transform, after confirmation, any loaded
image from to negative representation, like on a film negative.
New command "Edit/YCbCr Adjustment" to edit an image in terms of it's Y, Cb
and Cr attributes.
Y - edits image Intensity,
Cb - balances Blue and Yellow
Cr - balances Red and Green
New command "Options/Use system colors:", allows LView to use all palette
entries, including the "system colors" (used by windows for menus, etc).
Works when viewing images in 8-bit mode.
"Use system colors:" can be set to:
"Never" - To avoid remaping Window's system colors (default),
"While focused" - To remap system colors only while LView is focused.
New command "Options/Place window at:", to provide automatic window repositioning
after loading an image from the disk, pasting from the clipboard or cropping.
"Place window at:" can be set to:
"Same" - Window will not move (default),
"Left&Top" - Window moves to desktop's upper left corner of desktop,
"Left&Bottom" - Window moves to desktop's lower left corner of desktop,
"Right&Top" - Window moves to desktop's upper right corner,
"Right&Bottom" - Window moves to desktop's lower right corner, and,
"Center" - Window is centered on desktop.
New command "Options/Fit on load:", to provide automatic "Fitting" for
images loaded from the disk and pasted from the clipboard. This command
produces the same effect as loading the image and then choosing
"Edit/Resize/Fit to desktop", with "Preserve aspect ratio. It automates this
operation and works during slideshow viewing.
"Fit on load:" can be set to:
"Never" - Image size is not changed (default),
"to Shrink" - Image size is only changed if smaller than desktop fit,
"to Enlarge" - Image size is only changed if larger than desktop fit, and,
"Always" - Image size is always changed to fit the desktop.
-> This option will also work during batch compression. Unless you want a
resizing performed prior to compression, turn it off before beginning a
batch compression operation.
Added accelerator key support for the following functions:
Window client area scrolling (also work when defining a region):
HOME - scrolls one page to the left
END - scrolls one page to the right
PGUP - scrolls one page up
PGDN - scrolls one page down
UP ARROW - scrolls one line up
DOWN ARROW - scrolls one line down
LEFT ARROW - scrolls one row to the left
RIGHT ARROW - scrolls one row to the right
Common functions, also available in menu items:
SHIFT+DEL - same as Edit/Cut
CTR+INS - same as Edit/Copy
SHIFT+INS - same as Edit/Paste
CTR+DEL - same as Edit/Delete
CTR+S - same as Options/Place window at:/Same
CTR+HOME - same as Options/Place window at:/Left&Top
CTR+END - same as Options/Place window at:/Left&Bottom
CTR+PGUP - same as Options/Place window at:/Right&Top
CTR+PGDN - same as Options/Place window at:/Right&Bottom
CTR+C - same as Options/Place window at:/Center
CTR+R - same as Edit/Resize
CHANGES:
Menu items and shortcut keys were redefined for organizational purposes.
In the event of a read error or image inconsistensy, LView will preserve
any part of the image already read. Even if the user interrupts
the loading of an image, what was read so far will be available and
exhibited. This works for all supported image formats.
Algorithm for "Edit/Contrast Enhance" was improved.
When loading a file, LView will try to recognize it's format, regardless
of what the file extension is.
When saving a file with the "File/Save as" command, LView will
save the file in a format compatible with it's extension, regardless
of the selected file type selected on the "Save File as" Dialog:
.jpg for JPEG format
.bmp/.dib for Windows and OS/2 formats
.gif for GIF format
.tga for TARGA format
If the file extension is none of the above, LView will use the
format chosen on the "file type" field on the "Save File as" Dialog.
LView will exhibit only the initial letter for it's Main menu items (e.g.
"File" will be become "F"), when viewing small images. This is to reduce
ocurrences of menu wrapping.
'...' were added to menu items that open dialogs, '!' was added to menu items
that execute automatically (except for the well known clipboard commands)
BUG FIXES:
Fixed a bug on saving 1 bit Windows/OS2 BMP files.
LView now closes it's help window before exiting.
Version 1.6 news:
NEW FEATURES:
New command added: Options/Show Scroll Bars, allows the user to
enable/disable window scrollbars exhibition.
BUG FIXES:
When viewing images with Options/8-bit Bitmap unchecked (i.e. in
24-bit mode), trying to save an image to BMP (Windows or OS/2)
format would make LView 1.5 cause a GPF.
When loading a grayscale JPEG file with Options/8-bit Bitmap
checked, LView 1.5 would cause a GPF. That would not occour
if Options/Jpeg Options/Load GrayScale was set.
If a slideshow was interrupted while loading an image file,
after successfully loading one or more image files, the
File/Save item would not be disabled, and choosing it
would make LView 1.5 cause a GPF.
If the user tried to exit LView 1.5, after an unsuccessfull file
load, due to a file format error, a GPF would occour. This would
not happen if other files were subsequently loaded without errors,
prior to exiting LView 1.5.
When saving certain images to TGA format, a few incorrect horizontal
lines would be generated.
Loading of interlaced GIF files would cause a GPF.
Loading TGA files was sometimes failing to close the file handle,
causing LView 1.5 to run out of file handles.
Exiting LView 1.5 during a slideshow pause (either in manual or
automatic advancement) would cause a GPF.
Version 1.5 news:
NEW FEATURES:
Targa image files are now supported, both for loading and saving.
If Options/8-bit Options is set, LView will do a 1 pass quantize with
Floyd-Steinberg dithering, when loading 24-bit targa or BMP
(Windows or OS/2) image files
LView's window can now be maximized. Auto resizing will be disabled while
LView's window remains maximized.
New command 'Delete' in the File menu. If confirmed it will delete
the last loaded or saved filename.
New command 'Gamma Correction' in the Edit menu. Gamma correction can be
applied to Red, Green and Blue pixel attributes.
FEATURES ENHANCED:
The Load Grayscale option in the Options/Jpeg Options dialog
performs a faster load for Jpeg files suited for previewing.
'Fit to desktop' option added to the Edit/Resize dialog. Also in this
dialog, when altering one dimension the other will be recalculated
and exhibited, if 'Keep aspect rate' is checked.
When copying to the clipboard, LView will copy only the selected area,
if existant, instead of the whole image.
Auto scroll function (when selecting an area)
The image now scrolls at a constant pace of 1/8 of the client area size
The image now continues to scroll as long as the mouse pointer stays
outside the window, even if it doesn't move.
File loading/saving operations and drag-and-drop operations (like
slideshow and batch compression), can now be canceled by clicking
the on the status indicator shown at the menu bar area. You will be
prompted for a confirmation.
BEWARE that canceling a save operation will cause the LOSS of
the file being saved.
LView can now be terminated anytime during it's execution. If a
operation such as file load/save or drag-drop is taking place,
you will be prompted to confirm it's cancelation.
LView's dialogs for image attributes editing (HSV, Color Balance, Contrast
and the new Gamma Correction) were redesigned to a more compact format.
An 'Exec' Button was added to the Color Balance dialog, to allow for
individual settings for Red, Green and Blue offsets before execution,
when the display is in 24-bit color mode.
In the Jpeg Options dialog, the sampling factor options were replaced by
h2v2 and h2v1, according to Jpeg terminology. These are 'advanced'
options, and changing the default h2v2 to h2v1 will produce larger
compressed files, with some gain in image quality.
BUG FIXES:
The auto-resize algorithm was rewritten and minor bugs were corrected
including the scrollbar ranges.