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LibGUI: Start adding an automatic widget layout system.

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My needs are really quite simple, so I'm just going to add what I need
as I go along. The first thing I needed was a simple box layout with
widgets being able to say whether they prefer fixed or fill for both
their vertical and horizontal sizes.

I also made a simple GStatusBar so FileManager can show how many bytes
worth of files are in the current directory.
This commit is contained in:
Andreas Kling 2019-02-10 11:07:13 +01:00
parent 2cf1dd5b6f
commit 2def3d8d3f
22 changed files with 411 additions and 29 deletions
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10
SharedGraphics/Painter.cpp
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@ -4,7 +4,7 @@
#include <AK/Assertions.h>
#include <AK/StdLibExtras.h>
#ifdef LIBGUI
#ifdef USERLAND
#include <LibGUI/GWidget.h>
#include <LibGUI/GWindow.h>
#include <LibC/gui.h>
@ -20,7 +20,7 @@ Painter::Painter(GraphicsBitmap& bitmap)
m_clip_rect = { { 0, 0 }, bitmap.size() };
}
#ifdef LIBGUI
#ifdef USERLAND
Painter::Painter(GWidget& widget)
: m_font(&widget.font())
{
@ -34,9 +34,9 @@ Painter::Painter(GWidget& widget)
m_target = GraphicsBitmap::create_wrapper(backing.size, backing.pixels);
ASSERT(m_target);
m_window = widget.window();
m_translation.move_by(widget.relative_position());
m_translation.move_by(widget.window_relative_rect().location());
// NOTE: m_clip_rect is in Window coordinates since we are painting into its backing store.
m_clip_rect = widget.relative_rect();
m_clip_rect = widget.window_relative_rect();
m_clip_rect.intersect(m_target->rect());
#ifdef DEBUG_WIDGET_UNDERDRAW
@ -49,7 +49,7 @@ Painter::Painter(GWidget& widget)
Painter::~Painter()
{
#ifdef LIBGUI
#ifdef USERLAND
m_target = nullptr;
int rc = gui_release_window_backing_store(m_backing_store_id);
ASSERT(rc == 0);