mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 02:37:42 +00:00
LibGUI: Start adding an automatic widget layout system.
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:
parent
2cf1dd5b6f
commit
2def3d8d3f
22 changed files with 411 additions and 29 deletions
89
LibGUI/GBoxLayout.cpp
Normal file
89
LibGUI/GBoxLayout.cpp
Normal file
|
@ -0,0 +1,89 @@
|
|||
#include <LibGUI/GBoxLayout.h>
|
||||
#include <LibGUI/GWidget.h>
|
||||
|
||||
GBoxLayout::GBoxLayout(Orientation orientation)
|
||||
: m_orientation(orientation)
|
||||
{
|
||||
}
|
||||
|
||||
GBoxLayout::~GBoxLayout()
|
||||
{
|
||||
}
|
||||
|
||||
#if 0
|
||||
Size GLayout::compute_preferred_size() const
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
|
||||
static Size compute_preferred_size(GLayout::Entry& entry)
|
||||
{
|
||||
if (entry.layout)
|
||||
return entry.layout->compute_preferred_size();
|
||||
else {
|
||||
return entry.widget->preferred_size();
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
void GBoxLayout::run(GWidget& widget)
|
||||
{
|
||||
if (m_entries.is_empty())
|
||||
return;
|
||||
|
||||
Size available_size = widget.size();
|
||||
int number_of_entries_with_fixed_size = 0;
|
||||
|
||||
for (auto& entry : m_entries) {
|
||||
if (entry.widget && entry.widget->size_policy(orientation()) == SizePolicy::Fixed) {
|
||||
available_size -= entry.widget->preferred_size();
|
||||
++number_of_entries_with_fixed_size;
|
||||
}
|
||||
}
|
||||
|
||||
int number_of_entries_with_automatic_size = m_entries.size() - number_of_entries_with_fixed_size;
|
||||
|
||||
dbgprintf("GBoxLayout: available_size=%d, fixed=%d, fill=%d\n", available_size.height(), number_of_entries_with_fixed_size, number_of_entries_with_automatic_size);
|
||||
|
||||
Size automatic_size;
|
||||
|
||||
if (m_orientation == Orientation::Horizontal) {
|
||||
automatic_size.set_width(available_size.width() / number_of_entries_with_automatic_size);
|
||||
automatic_size.set_height(widget.height());
|
||||
} else {
|
||||
automatic_size.set_width(widget.width());
|
||||
automatic_size.set_height(available_size.height() / number_of_entries_with_automatic_size);
|
||||
}
|
||||
|
||||
dbgprintf("GBoxLayout: automatic_size=%s\n", automatic_size.to_string().characters());
|
||||
|
||||
int current_x = 0;
|
||||
int current_y = 0;
|
||||
for (auto& entry : m_entries) {
|
||||
Rect rect(current_x, current_y, 0, 0);
|
||||
if (entry.layout) {
|
||||
// FIXME: Implement recursive layout.
|
||||
ASSERT_NOT_REACHED();
|
||||
}
|
||||
ASSERT(entry.widget);
|
||||
if (entry.widget->size_policy(orientation()) == SizePolicy::Fixed) {
|
||||
rect.set_size(automatic_size);
|
||||
if (orientation() == Orientation::Vertical) {
|
||||
rect.set_height(entry.widget->preferred_size().height());
|
||||
} else {
|
||||
rect.set_width(entry.widget->preferred_size().height());
|
||||
}
|
||||
} else {
|
||||
rect.set_size(automatic_size);
|
||||
}
|
||||
|
||||
dbgprintf("GBoxLayout: apply, %s{%p} <- %s\n", entry.widget->class_name(), entry.widget.ptr(), rect.to_string().characters());
|
||||
entry.widget->set_relative_rect(rect);
|
||||
|
||||
if (orientation() == Orientation::Horizontal)
|
||||
current_x += rect.width();
|
||||
else
|
||||
current_y += rect.height();
|
||||
}
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue