ui/win32/window.c

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2024 Olaf Wintermann. 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 "window.h"
#include <Windows.h>

#include "toolkit.h"
#include "container.h"

#include "../common/object.h"


#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>

#include "win32.h"
#include "menu.h"

static W32WidgetClass w32_toplevel_widget_class = {
	.eventproc = ui_window_widget_event,
	.show = ui_window_widget_show,
	.enable = NULL,
	.get_preferred_size =  NULL,
	.destroy =  w32_widget_default_destroy
};

static HINSTANCE hInstance;

static const char *mainWindowClass = "UiMainWindow";


void ui_window_init(void) {
    hInstance = GetModuleHandle(NULL);

    WNDCLASSEX wc = { sizeof(WNDCLASSEX) };
    wc.lpfnWndProc = ui_default_eventproc;
    wc.hInstance = hInstance;
    wc.lpszClassName = mainWindowClass;
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = GetSysColorBrush(COLOR_BTNFACE);

    if(!RegisterClassExA(&wc)) {
        MessageBox(NULL, "RegisterClassEx failed", "Error", MB_ICONERROR);
        exit(-1);
    }
}

UiWindow* ui_widget2window(W32Widget *widget) {
    if (widget->wclass != &w32_toplevel_widget_class) {
        return NULL;
    }
    return (UiWindow*)widget;
}

static UiObject* create_window(const char *title, bool simple) {
    UiObject *obj = uic_object_new_toplevel();
    obj->ctx->command_map = cxHashMapCreate(obj->ctx->allocator, sizeof(UiCommand), 64);

    HWND hwnd = CreateWindowExA(
            0,
            "UiMainWindow",
            title,
            WS_OVERLAPPEDWINDOW,
            CW_USEDEFAULT,
            CW_USEDEFAULT,
            800,
            600,
            NULL,
            NULL,
            hInstance,
            NULL);

    if (!simple) {
        HMENU menubar = ui_create_main_menu(obj);
        if (menubar) {
            SetMenu(hwnd, menubar);
        }
    }

    UpdateWindow(hwnd);

    UiContainerX *container = ui_box_container_create(obj, hwnd, UI_BOX_VERTICAL, 0, INSETS_ZERO);
    uic_object_push_container(obj, container);
    UiBoxContainer *box = (UiBoxContainer*)container;

    UiWindow *widget = w32_widget_create(&w32_toplevel_widget_class, hwnd, sizeof(UiWindow));
    widget->obj = obj;
    widget->widget.layout = (W32LayoutFunc)ui_grid_layout;
    widget->widget.layoutmanager = box->layout;
    obj->widget = (W32Widget*)widget;
    obj->ref = 1;

    return obj;
}

UiObject *ui_window(const char *title) {
    return create_window(title, FALSE);
}

UiObject *ui_simple_window(const char *title) {
    return create_window(title, TRUE);
}

int ui_window_widget_event(W32Widget *widget, HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
    //UiWindow *window = (UiWindow*)widget;
    return 0;
}

void ui_window_widget_show(W32Widget *w, BOOLEAN show) {
    ShowWindow(w->hwnd, show ? SW_SHOWNORMAL : SW_HIDE);
}