ui/win32/toolkit.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 "toolkit.h"
#include "Windows.h"

#include "window.h"

#include "../common/menu.h"
#include "../common/toolbar.h"
#include "../common/document.h"
#include "../common/properties.h"

#include "../ui/widget.h"

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

#include <commctrl.h>

static const char *application_name;

static ui_callback   startup_func;
static void          *startup_data;
static ui_callback   open_func;
void                 *open_data;
static ui_callback   exit_func;
void                 *exit_data;

static HFONT ui_font = NULL;

void ui_init(const char *appname, int argc, char **argv) {
    application_name = appname;

    uic_init_global_context();
    uic_menu_init();
    uic_toolbar_init();
    uic_load_app_properties();

    INITCOMMONCONTROLSEX icex = {
        sizeof(icex),
        ICC_WIN95_CLASSES | ICC_LISTVIEW_CLASSES | ICC_TREEVIEW_CLASSES | ICC_BAR_CLASSES | ICC_TAB_CLASSES
    };
    InitCommonControlsEx(&icex);

    SetProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);

    NONCLIENTMETRICS ncm = { sizeof(ncm) };
    SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(ncm), &ncm, FALSE);
    ui_font = CreateFontIndirect(&ncm.lfMessageFont);

    ui_window_init();
}

HFONT ui_win32_get_font(void) {
    return ui_font;
}

void ui_win32_set_ui_font(HWND control) {
    if (ui_font) {
        SendMessage(control, WM_SETFONT, (WPARAM)ui_font, TRUE);
    }
}

const char* ui_appname() {
    return application_name;
}

void ui_onstartup(ui_callback f, void *userdata) {
    startup_func = f;
    startup_data = userdata;
}

void ui_onopen(ui_callback f, void *userdata) {
    open_func = f;
    open_data = userdata;
}

void ui_onexit(ui_callback f, void *userdata) {
    exit_func = f;
    exit_data = userdata;
}

void ui_main() {
    if(startup_func) {
        startup_func(NULL, startup_data);
    }

    // event loop
    MSG msg;
    while (GetMessage(&msg, NULL, 0, 0)) {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    if(exit_func) {
        exit_func(NULL, exit_data);
    }
    uic_store_app_properties();
}

void ui_show(UiObject *obj) {
    ui_set_visible(obj->widget, TRUE);
}

LRESULT CALLBACK ui_default_eventproc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
    fflush(stdout);
    W32Widget *widget = (W32Widget*)GetWindowLongPtr(hwnd, GWLP_USERDATA);
    if (widget && widget->wclass->eventproc) {
        widget->wclass->eventproc(widget, hwnd, uMsg, wParam, lParam);
    }
    switch(uMsg) {
        case WM_DESTROY: {
            PostQuitMessage(0);
            break;
        }
        case WM_COMMAND: {
            HWND hwndCtrl = (HWND)lParam;
            W32Widget *cmdWidget = (W32Widget*)GetWindowLongPtr(hwndCtrl, GWLP_USERDATA);
            if (cmdWidget && cmdWidget->wclass->eventproc) {
                cmdWidget->wclass->eventproc(cmdWidget, hwnd, uMsg, wParam, lParam);
            }
            break;
        }
        case WM_NOTIFY: {
            LPNMHDR hdr = (LPNMHDR)lParam;
            HWND hwndCtrl = hdr->hwndFrom;
            W32Widget *cmdWidget = (W32Widget*)GetWindowLongPtr(hwndCtrl, GWLP_USERDATA);
            if (cmdWidget && cmdWidget->wclass->eventproc) {
                cmdWidget->wclass->eventproc(cmdWidget, hwnd, uMsg, wParam, lParam);
            }
            break;
        }
        case WM_SIZE: {
            int width  = LOWORD(lParam);
            int height = HIWORD(lParam);
            if (widget->layout) {
                widget->layout(widget->layoutmanager, width, height);
            }
            break;
        }
        default: return DefWindowProc(hwnd, uMsg, wParam, lParam);
    }
    return 0;
}