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serenity/Servers/WindowServer/WindowFrame.cpp
Andreas Kling 7dadb75e28 WindowServer: Pop up the window menu at bottom left of window icon
When clicking the window icon, we now pop up the window menu at the
bottom left of the icon, no matter where you clicked it.

Right-clicking the title bar still pops up at the event position.
2020-04-29 12:07:40 +02:00

412 lines
15 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/Badge.h>
#include <LibGfx/CharacterBitmap.h>
#include <LibGfx/Font.h>
#include <LibGfx/Painter.h>
#include <LibGfx/StylePainter.h>
#include <WindowServer/Button.h>
#include <WindowServer/Compositor.h>
#include <WindowServer/Event.h>
#include <WindowServer/Window.h>
#include <WindowServer/WindowFrame.h>
#include <WindowServer/WindowManager.h>
namespace WindowServer {
static const int window_titlebar_height = 19;
static const char* s_close_button_bitmap_data = {
"## ##"
"### ###"
" ###### "
" #### "
" #### "
" ###### "
"### ###"
"## ##"
" "
};
static Gfx::CharacterBitmap* s_close_button_bitmap;
static const int s_close_button_bitmap_width = 8;
static const int s_close_button_bitmap_height = 9;
static const char* s_minimize_button_bitmap_data = {
" "
" "
" "
" ###### "
" #### "
" ## "
" "
" "
" "
};
static Gfx::CharacterBitmap* s_minimize_button_bitmap;
static const int s_minimize_button_bitmap_width = 8;
static const int s_minimize_button_bitmap_height = 9;
static const char* s_maximize_button_bitmap_data = {
" "
" "
" "
" ## "
" #### "
" ###### "
" "
" "
" "
};
static Gfx::CharacterBitmap* s_maximize_button_bitmap;
static const int s_maximize_button_bitmap_width = 8;
static const int s_maximize_button_bitmap_height = 9;
static const char* s_unmaximize_button_bitmap_data = {
" "
" ## "
" #### "
" ###### "
" "
" ###### "
" #### "
" ## "
" "
};
static Gfx::CharacterBitmap* s_unmaximize_button_bitmap;
static const int s_unmaximize_button_bitmap_width = 8;
static const int s_unmaximize_button_bitmap_height = 9;
WindowFrame::WindowFrame(Window& window)
: m_window(window)
{
if (!s_close_button_bitmap)
s_close_button_bitmap = &Gfx::CharacterBitmap::create_from_ascii(s_close_button_bitmap_data, s_close_button_bitmap_width, s_close_button_bitmap_height).leak_ref();
if (!s_minimize_button_bitmap)
s_minimize_button_bitmap = &Gfx::CharacterBitmap::create_from_ascii(s_minimize_button_bitmap_data, s_minimize_button_bitmap_width, s_minimize_button_bitmap_height).leak_ref();
if (!s_maximize_button_bitmap)
s_maximize_button_bitmap = &Gfx::CharacterBitmap::create_from_ascii(s_maximize_button_bitmap_data, s_maximize_button_bitmap_width, s_maximize_button_bitmap_height).leak_ref();
if (!s_unmaximize_button_bitmap)
s_unmaximize_button_bitmap = &Gfx::CharacterBitmap::create_from_ascii(s_unmaximize_button_bitmap_data, s_unmaximize_button_bitmap_width, s_unmaximize_button_bitmap_height).leak_ref();
m_buttons.append(make<Button>(*this, *s_close_button_bitmap, [this](auto&) {
m_window.request_close();
}));
if (window.is_resizable()) {
auto button = make<Button>(*this, *s_maximize_button_bitmap, [this](auto&) {
m_window.set_maximized(!m_window.is_maximized());
});
m_maximize_button = button.ptr();
m_buttons.append(move(button));
}
if (window.is_minimizable()) {
auto button = make<Button>(*this, *s_minimize_button_bitmap, [this](auto&) {
m_window.set_minimized(true);
});
m_minimize_button = button.ptr();
m_buttons.append(move(button));
}
}
WindowFrame::~WindowFrame()
{
}
void WindowFrame::did_set_maximized(Badge<Window>, bool maximized)
{
ASSERT(m_maximize_button);
m_maximize_button->set_bitmap(maximized ? *s_unmaximize_button_bitmap : *s_maximize_button_bitmap);
}
Gfx::Rect WindowFrame::title_bar_rect() const
{
if (m_window.type() == WindowType::Notification)
return { m_window.width() + 3, 3, window_titlebar_height, m_window.height() };
return { 4, 4, m_window.width(), window_titlebar_height };
}
Gfx::Rect WindowFrame::title_bar_icon_rect() const
{
auto titlebar_rect = title_bar_rect();
return {
titlebar_rect.x() + 1,
titlebar_rect.y() + 2,
16,
titlebar_rect.height(),
};
}
Gfx::Rect WindowFrame::title_bar_text_rect() const
{
auto titlebar_rect = title_bar_rect();
auto titlebar_icon_rect = title_bar_icon_rect();
return {
titlebar_rect.x() + 2 + titlebar_icon_rect.width() + 2,
titlebar_rect.y(),
titlebar_rect.width() - 4 - titlebar_icon_rect.width() - 2,
titlebar_rect.height()
};
}
WindowFrame::FrameColors WindowFrame::compute_frame_colors() const
{
auto& wm = WindowManager::the();
auto palette = wm.palette();
if (&m_window == wm.m_highlight_window)
return { palette.highlight_window_title(), palette.highlight_window_border1(), palette.highlight_window_border2() };
if (&m_window == wm.m_move_window)
return { palette.moving_window_title(), palette.moving_window_border1(), palette.moving_window_border2() };
if (&m_window == wm.m_active_window)
return { palette.active_window_title(), palette.active_window_border1(), palette.active_window_border2() };
return { palette.inactive_window_title(), palette.inactive_window_border1(), palette.inactive_window_border2() };
}
void WindowFrame::paint_notification_frame(Gfx::Painter& painter)
{
auto palette = WindowManager::the().palette();
Gfx::Rect outer_rect = { {}, rect().size() };
Gfx::StylePainter::paint_window_frame(painter, outer_rect, palette);
auto titlebar_rect = title_bar_rect();
painter.fill_rect_with_gradient(Gfx::Orientation::Vertical, titlebar_rect, palette.active_window_border1(), palette.active_window_border2());
int stripe_top = m_buttons.last().relative_rect().bottom() + 4;
int stripe_bottom = m_window.height() - 3;
if (stripe_top && stripe_bottom && stripe_top < stripe_bottom) {
for (int i = 2; i <= window_titlebar_height - 2; i += 2) {
painter.draw_line({ titlebar_rect.x() + i, stripe_top }, { titlebar_rect.x() + i, stripe_bottom }, palette.active_window_border1());
}
}
}
void WindowFrame::paint_normal_frame(Gfx::Painter& painter)
{
auto palette = WindowManager::the().palette();
auto& window = m_window;
Gfx::Rect outer_rect = { {}, rect().size() };
Gfx::StylePainter::paint_window_frame(painter, outer_rect, palette);
if (!window.show_titlebar())
return;
auto titlebar_rect = title_bar_rect();
auto titlebar_icon_rect = title_bar_icon_rect();
auto titlebar_inner_rect = title_bar_text_rect();
auto titlebar_title_rect = titlebar_inner_rect;
titlebar_title_rect.set_width(Gfx::Font::default_bold_font().width(window.title()));
auto [title_color, border_color, border_color2] = compute_frame_colors();
auto& wm = WindowManager::the();
painter.draw_line(titlebar_rect.bottom_left().translated(0, 1), titlebar_rect.bottom_right().translated(0, 1), palette.button());
painter.draw_line(titlebar_rect.bottom_left().translated(0, 2), titlebar_rect.bottom_right().translated(0, 2), palette.button());
auto leftmost_button_rect = m_buttons.is_empty() ? Gfx::Rect() : m_buttons.last().relative_rect();
painter.fill_rect_with_gradient(titlebar_rect, border_color, border_color2);
int stripe_left = titlebar_title_rect.right() + 4;
int stripe_right = leftmost_button_rect.left() - 3;
if (stripe_left && stripe_right && stripe_left < stripe_right) {
for (int i = 2; i <= titlebar_inner_rect.height() - 2; i += 2) {
painter.draw_line({ stripe_left, titlebar_inner_rect.y() + i }, { stripe_right, titlebar_inner_rect.y() + i }, border_color);
}
}
auto clipped_title_rect = titlebar_title_rect;
clipped_title_rect.set_width(stripe_right - clipped_title_rect.x());
if (!clipped_title_rect.is_empty()) {
painter.draw_text(clipped_title_rect.translated(1, 2), window.title(), wm.window_title_font(), Gfx::TextAlignment::CenterLeft, border_color.darkened(0.4), Gfx::TextElision::Right);
// FIXME: The translated(0, 1) wouldn't be necessary if we could center text based on its baseline.
painter.draw_text(clipped_title_rect.translated(0, 1), window.title(), wm.window_title_font(), Gfx::TextAlignment::CenterLeft, title_color, Gfx::TextElision::Right);
}
painter.blit(titlebar_icon_rect.location(), window.icon(), window.icon().rect());
}
void WindowFrame::paint(Gfx::Painter& painter)
{
Gfx::PainterStateSaver saver(painter);
painter.translate(rect().location());
if (m_window.type() == WindowType::Notification)
paint_notification_frame(painter);
else if (m_window.type() == WindowType::Normal)
paint_normal_frame(painter);
else
return;
for (auto& button : m_buttons) {
button.paint(painter);
}
}
static Gfx::Rect frame_rect_for_window(Window& window, const Gfx::Rect& rect)
{
auto type = window.type();
auto offset = !window.show_titlebar() ? (window_titlebar_height + 1) : 0;
switch (type) {
case WindowType::Normal:
return {
rect.x() - 4,
rect.y() - window_titlebar_height - 6 + offset,
rect.width() + 8,
rect.height() + 10 + window_titlebar_height - offset
};
case WindowType::Notification:
return {
rect.x() - 3,
rect.y() - 3,
rect.width() + 6 + window_titlebar_height,
rect.height() + 6
};
default:
return rect;
}
}
static Gfx::Rect frame_rect_for_window(Window& window)
{
return frame_rect_for_window(window, window.rect());
}
Gfx::Rect WindowFrame::rect() const
{
return frame_rect_for_window(m_window);
}
void WindowFrame::invalidate_title_bar()
{
WindowManager::the().invalidate(title_bar_rect().translated(rect().location()));
}
void WindowFrame::notify_window_rect_changed(const Gfx::Rect& old_rect, const Gfx::Rect& new_rect)
{
int window_button_width = 15;
int window_button_height = 15;
int pos;
if (m_window.type() == WindowType::Notification)
pos = title_bar_rect().top() + 2;
else
pos = title_bar_text_rect().right() + 1;
for (auto& button : m_buttons) {
if (m_window.type() == WindowType::Notification) {
Gfx::Rect rect { 0, pos, window_button_width, window_button_height };
rect.center_horizontally_within(title_bar_rect());
button.set_relative_rect(rect);
pos += window_button_width;
} else {
pos -= window_button_width;
Gfx::Rect rect { pos, 0, window_button_width, window_button_height };
rect.center_vertically_within(title_bar_text_rect());
button.set_relative_rect(rect);
}
}
auto& wm = WindowManager::the();
wm.invalidate(frame_rect_for_window(m_window, old_rect));
wm.invalidate(frame_rect_for_window(m_window, new_rect));
wm.notify_rect_changed(m_window, old_rect, new_rect);
}
void WindowFrame::on_mouse_event(const MouseEvent& event)
{
ASSERT(!m_window.is_fullscreen());
if (m_window.is_blocked_by_modal_window())
return;
auto& wm = WindowManager::the();
if (m_window.type() != WindowType::Normal && m_window.type() != WindowType::Notification)
return;
if (m_window.type() == WindowType::Normal && event.type() == Event::MouseDown && (event.button() == MouseButton::Left || event.button() == MouseButton::Right) && title_bar_icon_rect().contains(event.position())) {
wm.move_to_front_and_make_active(m_window);
m_window.popup_window_menu(title_bar_icon_rect().bottom_left().translated(rect().location()));
return;
}
// This is slightly hackish, but expand the title bar rect by two pixels downwards,
// so that mouse events between the title bar and window contents don't act like
// mouse events on the border.
auto adjusted_title_bar_rect = title_bar_rect();
adjusted_title_bar_rect.set_height(adjusted_title_bar_rect.height() + 2);
if (adjusted_title_bar_rect.contains(event.position())) {
wm.clear_resize_candidate();
if (event.type() == Event::MouseDown)
wm.move_to_front_and_make_active(m_window);
for (auto& button : m_buttons) {
if (button.relative_rect().contains(event.position()))
return button.on_mouse_event(event.translated(-button.relative_rect().location()));
}
if (event.type() == Event::MouseDown) {
if (m_window.type() == WindowType::Normal && event.button() == MouseButton::Right) {
m_window.popup_window_menu(event.position().translated(rect().location()));
return;
}
if (m_window.is_movable() && event.button() == MouseButton::Left)
wm.start_window_move(m_window, event.translated(rect().location()));
}
return;
}
if (m_window.is_resizable() && event.type() == Event::MouseMove && event.buttons() == 0) {
constexpr ResizeDirection direction_for_hot_area[3][3] = {
{ ResizeDirection::UpLeft, ResizeDirection::Up, ResizeDirection::UpRight },
{ ResizeDirection::Left, ResizeDirection::None, ResizeDirection::Right },
{ ResizeDirection::DownLeft, ResizeDirection::Down, ResizeDirection::DownRight },
};
Gfx::Rect outer_rect = { {}, rect().size() };
ASSERT(outer_rect.contains(event.position()));
int window_relative_x = event.x() - outer_rect.x();
int window_relative_y = event.y() - outer_rect.y();
int hot_area_row = min(2, window_relative_y / (outer_rect.height() / 3));
int hot_area_column = min(2, window_relative_x / (outer_rect.width() / 3));
wm.set_resize_candidate(m_window, direction_for_hot_area[hot_area_row][hot_area_column]);
Compositor::the().invalidate_cursor();
return;
}
if (m_window.is_resizable() && event.type() == Event::MouseDown && event.button() == MouseButton::Left)
wm.start_window_resize(m_window, event.translated(rect().location()));
}
}