Commit graph

17 commits

Author SHA1 Message Date
Andreas Kling
11580babbf LibDraw: Put all classes in the Gfx namespace
I started adding things to a Draw namespace, but it somehow felt really
wrong seeing Draw::Rect and Draw::Bitmap, etc. So instead, let's rename
the library to LibGfx. :^)
2020-02-06 11:56:38 +01:00
Andreas Kling
94ca55cefd Meta: Add license header to source files
As suggested by Joshua, this commit adds the 2-clause BSD license as a
comment block to the top of every source file.

For the first pass, I've just added myself for simplicity. I encourage
everyone to add themselves as copyright holders of any file they've
added or modified in some significant way. If I've added myself in
error somewhere, feel free to replace it with the appropriate copyright
holder instead.

Going forward, all new source files should include a license header.
2020-01-18 09:45:54 +01:00
Andreas Kling
a79bac428b LibGUI+LibDraw: Add "Palette" concept for scoped color theming
GApplication now has a palette. This palette contains all the system
theme colors by default, and is inherited by a new top-level GWidget.
New child widgets inherit their parents palette.

It is possible to override the GApplication palette, and the palette
of any GWidget.

The Palette object contains a bunch of colors, each corresponding to
a ColorRole. Each role has a convenience getter as well.

Each GWidget now has a background_role() and foreground_role(), which
are then looked up in their current palette when painting. This means
that you no longer alter the background color of a widget by setting
it directly, rather you alter either its background role, or the
widget's palette.
2019-12-24 21:27:16 +01:00
Andreas Kling
a12292bd03 LibHTML: LayoutImage should not dereference a null bitmap
This was happening when trying to render a bitmap that we couldn't
decode properly.
2019-11-18 20:26:32 +01:00
Andreas Kling
c628ebda0f LibHTML: Use floating point numbers throughout the layout tree 2019-11-18 16:30:18 +01:00
Andreas Kling
457e49f528 LibHTML: Rename HTMLImageElement::m_image_loader => m_image_decoder
This matches the new class name, ImageDecoder.
2019-10-20 12:55:55 +02:00
Andreas Kling
18fa662eb2 LibHTML: Use ImageLoader for <img> elements to defer bitmap decoding
We now wait until the pixels are actually needed before fully decoding
images in <img> elements.

This needs some more work and is currently a bit memory-wasteful since
we'll hang on to the raw image data forever.
2019-10-15 21:53:08 +02:00
Andreas Kling
fdbad6284c LibHTML: Implement the <blink> element
Just in time for Serenity's 1st birthday, here is the <blink> element!

This patch adds a bunch of different mechanisms to enable partial
repaints of the layout tree (LayoutNode::set_needs_display()))
It also adds LayoutNode::is_visible(), which can be toggled to prevent
a LayoutNode from rendering anything (it still takes up space though.)
2019-10-09 21:25:29 +02:00
Andreas Kling
31ac19543a LibHTML: Use an enum for CSS property ID's
Instead of using string everywhere, have the CSS parser produce enum
values, since they are a lot nicer to work with.

In the future we should generate most of this code based on a list of
supported CSS properties.
2019-10-08 15:35:05 +02:00
Conrad Pankoff
2cf5d69a67 LibHTML: Use current style's text colour for alt text on images 2019-10-06 14:33:00 +02:00
Conrad Pankoff
451730000c LibHTML: Trim image alt text to the right if necessary 2019-10-06 14:33:00 +02:00
Conrad Pankoff
b240500107 LibHTML: Support width/height attributes on images 2019-10-06 14:33:00 +02:00
Conrad Pankoff
088237a25f LibHTML: Draw image alt text as black rather than white 2019-10-06 14:33:00 +02:00
Conrad Pankoff
5f6903a714 LibHTML: Use image URL as alt text if alt is missing 2019-10-06 14:33:00 +02:00
Andreas Kling
958b395418 LibHTML: Support rendering <img src> with file:// URLs
We can now show images loaded from local file:// URLs. Pretty neat :^)
2019-10-05 23:41:14 +02:00
Andreas Kling
ee567cdc3d LibHTML: Implement basic layout for inline <img alt>
LayoutReplaced objects can now participate in inline layout.

It's very hackish, but basically LayoutReplaced will just add itself to
the last line in the containing block.

This patch gets rid of the idea that only LayoutInline subclasses can
be split into lines, by moving the split_into_lines() virtual up to
LayoutNode and overriding it in LayoutReplaced.
2019-10-05 23:29:01 +02:00
Andreas Kling
09dccb3224 LibHTML: Flesh out <img> element with LayoutImage and LayoutReplaced
This patch adds parsing of <img> into HTMLImageElement objects.
It also adds LayoutImage and its parent class LayoutReplaced, which is
going to represent CSS "replaced elements."
2019-10-05 23:29:01 +02:00