framelesshelper/utilities_linux.cpp

313 lines
9.5 KiB
C++

/*
* MIT License
*
* Copyright (C) 2021 by wangwenx190 (Yuhang Zhao)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "utilities.h"
#include <QtCore/qvariant.h>
#include <QtCore/qdebug.h>
#include <QtGui/qscreen.h>
#include <QtX11Extras/qx11info_x11.h>
#include <X11/Xlib.h>
FRAMELESSHELPER_BEGIN_NAMESPACE
#define _NET_WM_MOVERESIZE_SIZE_TOPLEFT 0
#define _NET_WM_MOVERESIZE_SIZE_TOP 1
#define _NET_WM_MOVERESIZE_SIZE_TOPRIGHT 2
#define _NET_WM_MOVERESIZE_SIZE_RIGHT 3
#define _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT 4
#define _NET_WM_MOVERESIZE_SIZE_BOTTOM 5
#define _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT 6
#define _NET_WM_MOVERESIZE_SIZE_LEFT 7
#define _NET_WM_MOVERESIZE_MOVE 8 /* movement only */
#define _NET_WM_MOVERESIZE_SIZE_KEYBOARD 9 /* size via keyboard */
#define _NET_WM_MOVERESIZE_MOVE_KEYBOARD 10 /* move via keyboard */
#define _NET_WM_MOVERESIZE_CANCEL 11 /* cancel operation */
static constexpr int kDefaultResizeBorderThickness = 8;
static constexpr int kDefaultCaptionHeight = 23;
int Utilities::getSystemMetric(const QWindow *window, const SystemMetric metric, const bool dpiScale, const bool forceSystemValue)
{
Q_ASSERT(window);
if (!window) {
return 0;
}
const qreal devicePixelRatio = window->devicePixelRatio();
const qreal scaleFactor = (dpiScale ? devicePixelRatio : 1.0);
switch (metric) {
case SystemMetric::ResizeBorderThickness: {
// ### TO BE IMPLEMENTED: Retrieve system value through official API
if (dpiScale) {
return qRound(static_cast<qreal>(kDefaultResizeBorderThickness) * devicePixelRatio);
} else {
return kDefaultResizeBorderThickness;
}
}
case SystemMetric::CaptionHeight: {
// ### TO BE IMPLEMENTED: Retrieve system value through official API
if (dpiScale) {
return qRound(static_cast<qreal>(kDefaultCaptionHeight) * devicePixelRatio);
} else {
return kDefaultCaptionHeight;
}
}
case SystemMetric::TitleBarHeight: {
const int captionHeight = getSystemMetric(window, SystemMetric::CaptionHeight,
dpiScale, forceSystemValue);
const int resizeBorderThickness = getSystemMetric(window, SystemMetric::ResizeBorderThickness,
dpiScale, forceSystemValue);
return (((window->windowState() == Qt::WindowMaximized)
|| (window->windowState() == Qt::WindowFullScreen))
? captionHeight : (captionHeight + resizeBorderThickness));
}
}
return 0;
}
QColor Utilities::getColorizationColor()
{
// ### TO BE IMPLEMENTED
return Qt::darkGray;
}
int Utilities::getWindowVisibleFrameBorderThickness(const WId winId)
{
// ### TO BE IMPLEMENTED
Q_UNUSED(winId);
return 1;
}
bool Utilities::shouldAppsUseDarkMode()
{
// ### TO BE IMPLEMENTED
return false;
}
ColorizationArea Utilities::getColorizationArea()
{
// ### TO BE IMPLEMENTED
return ColorizationArea::NoArea;
}
bool Utilities::isThemeChanged(const void *data)
{
// ### TO BE IMPLEMENTED
Q_UNUSED(data);
return false;
}
bool Utilities::isSystemMenuRequested(const void *data, QPointF *pos)
{
// ### TO BE IMPLEMENTED
Q_UNUSED(data);
Q_UNUSED(pos);
return false;
}
bool Utilities::showSystemMenu(const WId winId, const QPointF &pos)
{
// ### TO BE IMPLEMENTED
Q_UNUSED(winId);
Q_UNUSED(pos);
return false;
}
void Utilities::sendX11ButtonReleaseEvent(QWindow *w, const QPoint &globalPos)
{
const QPoint pos = w->mapFromGlobal(globalPos);
const auto display = QX11Info::display();
const auto screen = QX11Info::appScreen();
XEvent xevent;
memset(&xevent, 0, sizeof(XEvent));
xevent.type = ButtonRelease;
xevent.xbutton.time = CurrentTime;
xevent.xbutton.button = 0;
xevent.xbutton.same_screen = True;
xevent.xbutton.send_event = True;
xevent.xbutton.window = w->winId();
xevent.xbutton.root = QX11Info::appRootWindow(screen);
xevent.xbutton.x = pos.x() * w->screen()->devicePixelRatio();
xevent.xbutton.y = pos.y() * w->screen()->devicePixelRatio();
xevent.xbutton.x_root = globalPos.x() * w->screen()->devicePixelRatio();
xevent.xbutton.y_root = globalPos.y() * w->screen()->devicePixelRatio();
xevent.xbutton.display = display;
if (XSendEvent(display, w->winId(), True, ButtonReleaseMask, &xevent) == 0)
qWarning() << "Failed to send ButtonRelease event.";
XFlush(display);
}
void Utilities::sendX11MoveResizeEvent(QWindow *w, const QPoint &globalPos, int section)
{
const auto display = QX11Info::display();
const auto winId = w->winId();
const auto screen = QX11Info::appScreen();
XUngrabPointer(display, CurrentTime);
XEvent xev;
memset(&xev, 0x00, sizeof(xev));
const Atom netMoveResize = XInternAtom(display, "_NET_WM_MOVERESIZE", False);
xev.xclient.type = ClientMessage;
xev.xclient.message_type = netMoveResize;
xev.xclient.serial = 0;
xev.xclient.display = display;
xev.xclient.send_event = True;
xev.xclient.window = winId;
xev.xclient.format = 32;
xev.xclient.data.l[0] = globalPos.x() * w->screen()->devicePixelRatio();
xev.xclient.data.l[1] = globalPos.y() * w->screen()->devicePixelRatio();
xev.xclient.data.l[2] = section;
xev.xclient.data.l[3] = Button1;
xev.xclient.data.l[4] = 0;
if(XSendEvent(display, QX11Info::appRootWindow(screen),
False, SubstructureRedirectMask | SubstructureNotifyMask, &xev) == 0)
qWarning("Failed to send Move or Resize event.");
XFlush(display);
}
void Utilities::startX11Moving(QWindow *w, const QPoint &pos)
{
sendX11MoveResizeEvent(w, pos, _NET_WM_MOVERESIZE_MOVE);
}
void Utilities::startX11Resizing(QWindow *w, const QPoint &pos, Qt::WindowFrameSection frameSection)
{
int section = -1;
switch (frameSection)
{
case Qt::LeftSection:
section = _NET_WM_MOVERESIZE_SIZE_LEFT;
break;
case Qt::TopLeftSection:
section = _NET_WM_MOVERESIZE_SIZE_TOPLEFT;
break;
case Qt::TopSection:
section = _NET_WM_MOVERESIZE_SIZE_TOP;
break;
case Qt::TopRightSection:
section = _NET_WM_MOVERESIZE_SIZE_TOPRIGHT;
break;
case Qt::RightSection:
section = _NET_WM_MOVERESIZE_SIZE_RIGHT;
break;
case Qt::BottomRightSection:
section = _NET_WM_MOVERESIZE_SIZE_BOTTOMRIGHT;
break;
case Qt::BottomSection:
section = _NET_WM_MOVERESIZE_SIZE_BOTTOM;
break;
case Qt::BottomLeftSection:
section = _NET_WM_MOVERESIZE_SIZE_BOTTOMLEFT;
break;
default:
break;
}
if (section != -1)
sendX11MoveResizeEvent(w, pos, section);
}
enum class X11CursorType
{
kArrow = 2,
kTop = 138,
kTopRight = 136,
kRight = 96,
kBottomRight = 14,
kBottom = 16,
kBottomLeft = 12,
kLeft = 70,
kTopLeft = 134,
};
void Utilities::setX11CursorShape(QWindow *w, int cursorId)
{
const auto display = QX11Info::display();
const WId window_id = w->winId();
const Cursor cursor = XCreateFontCursor(display, cursorId);
if (!cursor) {
qWarning() << "Failed to set cursor.";
}
XDefineCursor(display, window_id, cursor);
XFlush(display);
}
void Utilities::resetX1CursorShape(QWindow *w)
{
const auto display = QX11Info::display();
const WId window_id = w->winId();
XUndefineCursor(display, window_id);
XFlush(display);
}
unsigned int Utilities::getX11CursorForFrameSection(Qt::WindowFrameSection frameSection)
{
X11CursorType cursor = X11CursorType::kArrow;
switch (frameSection)
{
case Qt::LeftSection:
cursor = X11CursorType::kLeft;
break;
case Qt::RightSection:
cursor = X11CursorType::kRight;
break;
case Qt::BottomSection:
cursor = X11CursorType::kBottom;
break;
case Qt::TopSection:
cursor = X11CursorType::kTop;
break;
case Qt::TopLeftSection:
cursor = X11CursorType::kTopLeft;
break;
case Qt::BottomRightSection:
cursor = X11CursorType::kBottomRight;
break;
case Qt::TopRightSection:
cursor = X11CursorType::kTopRight;
break;
case Qt::BottomLeftSection:
cursor = X11CursorType::kBottomLeft;
break;
case Qt::TitleBarArea:
cursor = X11CursorType::kArrow;
break;
default:
break;
}
return (unsigned int)cursor;
}
FRAMELESSHELPER_END_NAMESPACE