RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 11:27:34 +00:00
Code Issues Activity Actions

WindowServer: Implement cursor highlighting

Browse source 
This allows drawing a nice cursor highlight with an arbitrary color
and radius in the compositor. The highlight circle is, of course,
antialiased :^).
This commit is contained in:
MacDue 2022-06-04 20:35:14 +01:00 • committed by Linus Groh
parent 2a49b58269
commit 29d8ec1b18
3 changed files with 55 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

23
Userland/Services/WindowServer/Compositor.cpp
View file

@ -17,6 +17,7 @@
#include <AK/Memory.h>
#include <AK/ScopeGuard.h>
#include <LibCore/Timer.h>
#include <LibGfx/AntiAliasingPainter.h>
#include <LibGfx/Font/Font.h>
#include <LibGfx/Painter.h>
#include <LibGfx/StylePainter.h>
@ -849,7 +850,14 @@ Gfx::IntRect Compositor::current_cursor_rect() const
{
auto& wm = WindowManager::the();
auto& current_cursor = m_current_cursor ? *m_current_cursor : wm.active_cursor();
return { ScreenInput::the().cursor_location().translated(-current_cursor.params().hotspot()), current_cursor.size() };
Gfx::IntRect cursor_rect { ScreenInput::the().cursor_location().translated(-current_cursor.params().hotspot()), current_cursor.size() };
if (wm.is_cursor_highlight_enabled()) {
auto highlight_diameter = wm.cursor_highlight_radius() * 2;
cursor_rect.inflate(
highlight_diameter - cursor_rect.width(),
highlight_diameter - cursor_rect.height());
}
return cursor_rect;
}
void Compositor::invalidate_cursor(bool compose_immediately)
@ -956,10 +964,17 @@ void CompositorScreenData::draw_cursor(Screen& screen, Gfx::IntRect const& curso
auto& compositor = Compositor::the();
auto& current_cursor = compositor.m_current_cursor ? *compositor.m_current_cursor : wm.active_cursor();
auto screen_rect = screen.rect();
m_cursor_back_painter->blit({ 0, 0 }, *m_back_bitmap, current_cursor.rect().translated(cursor_rect.location()).intersected(screen_rect).translated(-screen_rect.location()));
m_cursor_back_painter->blit({ 0, 0 }, *m_back_bitmap, cursor_rect.intersected(screen_rect).translated(-screen_rect.location()));
auto cursor_src_rect = current_cursor.source_rect(compositor.m_current_cursor_frame);
m_back_painter->blit(cursor_rect.location(), current_cursor.bitmap(screen.scale_factor()), cursor_src_rect);
m_flush_special_rects.add(Gfx::IntRect(cursor_rect.location(), cursor_src_rect.size()).intersected(screen.rect()));
auto cursor_blit_pos = current_cursor.rect().centered_within(cursor_rect).location();
if (wm.is_cursor_highlight_enabled()) {
Gfx::AntiAliasingPainter aa_back_painter { *m_back_painter };
aa_back_painter.fill_ellipse(cursor_rect, wm.cursor_highlight_color());
}
m_back_painter->blit(cursor_blit_pos, current_cursor.bitmap(screen.scale_factor()), cursor_src_rect);
m_flush_special_rects.add(Gfx::IntRect(cursor_rect.location(), cursor_rect.size()).intersected(screen.rect()));
m_have_flush_rects = true;
m_last_cursor_rect = cursor_rect;
VERIFY(compositor.m_current_cursor_screen == &screen);