104 lines
2.8 KiB
C++
104 lines
2.8 KiB
C++
#include <QApplication>
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#include <QTimer>
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#include <QX11Info>
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#include "qt_dialog.h"
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#include <xcb/xcb.h>
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// Qt 头文件必须在 Motif/X11 之前
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#include <X11/Intrinsic.h>
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#include <Xm/Xm.h>
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#include <Xm/PushB.h>
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#include <unistd.h> // for usleep
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#include <iostream>
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// 全局 Qt 应用和对话框指针
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QApplication *g_app = nullptr;
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// 打开 Qt 对话框
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void openQtDialog(Widget w, XtPointer client_data, XtPointer call_data)
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{
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auto dialog = new QtDialog();
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dialog->setAttribute(Qt::WA_DeleteOnClose); // 关闭时自动删除
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dialog->show(); // 非阻塞显示
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}
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// Motif 主循环中处理 Qt 事件
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void processQtEvents()
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{
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if (g_app)
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{
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g_app->processEvents();
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}
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}
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int main(int argc, char **argv)
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{
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XtAppContext app_context;
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Widget toplevel, button;
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// 创建 QApplication（必须在 Qt 头文件之后）
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g_app = new QApplication(argc, nullptr);
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// int screen_num;
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// xcb_connection_t *connection = xcb_connect(NULL, &screen_num);
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xcb_connection_t *connection = QX11Info::connection();
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// Qt 内部管理的 screen_num
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int screen_num = QX11Info::appScreen();
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if (xcb_connection_has_error(connection))
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{
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fprintf(stderr, "无法连接到 X 服务器\n");
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return -1;
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}
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const xcb_setup_t *setup = xcb_get_setup(connection);
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xcb_screen_iterator_t iter = xcb_setup_roots_iterator(setup);
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for (int i = 0; i <= screen_num; i++)
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{
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xcb_screen_t *screen = iter.data;
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xcb_screen_next(&iter);
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printf("屏幕根窗口: %u, 尺寸: %dx%d\n",
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screen->root, screen->width_in_pixels, screen->height_in_pixels);
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std::cout << "screen_num: " << screen_num << std::endl;
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std::cout << "screen root window: " << screen->root << std::endl;
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std::cout << "screen size: " << screen->width_in_pixels
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<< "x" << screen->height_in_pixels << std::endl;
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}
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// 创建 Motif 主窗口
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toplevel = XtVaAppInitialize(&app_context, "MotifQtApp", NULL, 0,
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&argc, argv, NULL, NULL);
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button = XtVaCreateManagedWidget("Open Qt Dialog",
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xmPushButtonWidgetClass,
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toplevel, NULL);
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XtAddCallback(button, XmNactivateCallback, openQtDialog, NULL);
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XtRealizeWidget(toplevel);
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XEvent event;
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while (1)
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{
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while (XtAppPending(app_context))
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{
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XtAppNextEvent(app_context, &event);
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XtDispatchEvent(&event);
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}
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// 每次空闲处理 Qt 事件
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processQtEvents();
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// 避免 CPU 空转
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usleep(1000);
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}
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// 清理（一般不会执行到这里）
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delete g_app;
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// xcb_disconnect(connection);
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return 0;
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}
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