Image::Base::Wx::Bitmap -- draw into a Wx::Bitmap
use Image::Base::Wx::Bitmap; my $image = Image::Base::Wx::Bitmap->new (-wxbitmap => $wxbitmap); $image->line (0,0, 99,99, '#FF00FF'); $image->rectangle (10,10, 20,15, 'white');
Image::Base::Wx::Bitmap is a subclass of Image::Base::Wx::DC,
Image::Base::Wx::Bitmap
Image::Base::Wx::DC
Image::Base Image::Base::Wx::DC Image::Base::Wx::Bitmap
Image::Base::Wx::Bitmap extends Image::Base to draw into a Wx::Bitmap.
Image::Base
Wx::Bitmap
Wx::Bitmap is a platform-dependent colour image with a specified bits-per-pixel depth. The supported depths depend on the platform but include at least the screen depth and 1-bit monochrome.
Drawing is done with a wxMemoryDC as per the Image::Base::Wx::DC. This subclass adds file load and save for the Wx::Bitmap.
The file formats supported in Wx 2.8 include the following, perhaps depending which supporting libraries it was built with.
BMP always available PNG JPEG GIF load-only PCX PNM TIFF TGA load-only IFF load-only XPM ICO CUR ANI load-only
load() detects the format, but a handler for the format must have been registered globally. All formats can be registered with
load()
Wx::InitAllImageHandlers();
This is suggested since otherwise load XPM seems to behave as an "ANY" which might trick the detection attempts. The Wx::Image handlers are used by Wx::Bitmap so registering desired formats there might be enough.
Wx::Image
Colour names are anything recognised by Wx::Colour->new(), as described in "Colour Names" in Image::Base::Wx::DC.
Wx::Colour->new()
See "FUNCTIONS" in Image::Base for behaviour common to all Image-Base classes.
$image = Image::Base::Wx::Bitmap->new (key=>value,...)
Create and return a new image object. It can read a file,
$image = Image::Base::Wx::Bitmap->new (-file => '/my/file/name.bmp');
Or create a new bitmap with width and height. The default -depth is the bits-per-pixel of the screen, or something else can be given.
-depth
$image = Image::Base::Wx::Bitmap->new (-width => 200, -height => 100, -depth => 1); # monochrome
Or a new image can be pointed at an existing Wx::Bitmap,
my $wxbitmap = Wx::Bitmap->new (200, 100); my $image = Image::Base::Wx::Bitmap->new (-wxbitmap => $wxbitmap);
Further parameters are applied per set (see "ATTRIBUTES" below).
set
-wxbitmap
The target bitmap object.
-dc
Wx::MemoryDC
The Wx::DC used to draw into the bitmap. A suitable DC is created for the bitmap automatically, but it can be set explicitly if desired.
Wx::DC
-file_format
The file format from the last load() and the format to use in save(). This is one of the wxBITMAP_TYPE_XXX names such as "PNG" or "JPEG".
save()
wxBITMAP_TYPE_XXX
-width
-height
The size of the bitmap, per $wxbitmap->GetWidth() and $wxbitmap->GetHeight(). Currently these are read-only. Can a bitmap be resized dynamically?
$wxbitmap->GetWidth()
$wxbitmap->GetHeight()
The number of bits per pixel in the bitmap, per $wxbitmap->GetDepth(). Currently this is read-only. Can a bitmap be reformatted dynamically?
$wxbitmap->GetDepth()
Wx circa 2.8.12 on Gtk prints g_log() warnings on attempting to load an unknown file format, including an empty file or garbage. This is apparently from attempting it as an XPM. Is that a Wx bug?
g_log()
Wx, Image::Base, Image::Base::Wx::DC, Image::Base::Wx::Image
http://user42.tuxfamily.org/image-base-wx/index.html
Copyright 2012 Kevin Ryde
Image-Base-Wx is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.
Image-Base-Wx is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with Image-Base-Wx. If not, see <http://www.gnu.org/licenses/>.
To install Image::Base::Wx::DC, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Image::Base::Wx::DC
CPAN shell
perl -MCPAN -e shell install Image::Base::Wx::DC
For more information on module installation, please visit the detailed CPAN module installation guide.