application/demo_states.c

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2026 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 "demo_states.h"

#include <inttypes.h>

static void *doc1;
static void *doc2;

static void doc1_attachment(UiEvent *event, void *userdata) {
    if(event->intval) {
        printf("attach document 1\n");
        ui_attach_document(event->obj->ctx, doc1);
    } else {
        printf("detach document 1\n");
        ui_detach_document(event->obj->ctx, doc1);
    }
}

static void doc2_attachment(UiEvent *event, void *userdata) {
    UiContext *ctx = ui_document_context(doc1);
    if(event->intval) {
        printf("attach document 2 to document 1\n");
        ui_attach_document(ctx, doc2);
    } else {
        printf("detach document 2 from document 1\n");
        ui_detach_document(ctx, doc2);
    }
}

static void doc_enable_state1(UiEvent *event, void *doc) {
    UiContext *ctx = ui_document_context(doc);
    if(event->intval) {
        ui_set_state(ctx, 1);
    } else {
        ui_unset_state(ctx, 1);
    }
}

static void doc_enable_state2(UiEvent *event, void *doc) {
    UiContext *ctx = ui_document_context(doc);
    if(event->intval) {
        ui_set_state(ctx, 2);
    } else {
        ui_unset_state(ctx, 2);
    }
}

static void doc_enable_state3(UiEvent *event, void *doc) {
    UiContext *ctx = ui_document_context(doc);
    if(event->intval) {
        ui_set_state(ctx, 3);
    } else {
        ui_unset_state(ctx, 3);
    }
}

static void doc_enable_state4(UiEvent *event, void *doc) {
    UiContext *ctx = ui_document_context(doc);
    if(event->intval) {
        ui_set_state(ctx, 4);
    } else {
        ui_unset_state(ctx, 4);
    }
}

static void application_startup(UiEvent *event, void *userdata) {
    UiObject *obj = ui_window("States Demo");
    
    doc1 = ui_document_new(8);
    doc2 = ui_document_new(8);
    
    ui_hbox(obj, .margin = 10, .spacing = 8) {
        ui_button(obj, .label = "State 1", .states = UI_STATES(1));
        ui_button(obj, .label = "State 2", .states = UI_STATES(2));
        ui_button(obj, .label = "State 3", .states = UI_STATES(3));
        ui_button(obj, .label = "State 4", .states = UI_STATES(4));
        ui_button(obj, .label = "State 1,2", .states = UI_STATES(1, 2));
        ui_button(obj, .label = "State 1,2,3", .states = UI_STATES(1, 2, 3));
        ui_button(obj, .label = "State 1,2,3,4", .states = UI_STATES(1, 2, 3, 4));
    }
    
    ui_frame(obj, .label = "Window", .fill = TRUE, .margin = 10, .subcontainer = UI_CONTAINER_VBOX) {
        ui_hbox(obj, .margin = 10, .spacing = 8) {
            ui_togglebutton(obj, .label = "Enable 1", .enable_state = 1);
            ui_togglebutton(obj, .label = "Enable 2", .enable_state = 2);
            ui_togglebutton(obj, .label = "Enable 3", .enable_state = 3);
            ui_togglebutton(obj, .label = "Enable 4", .enable_state = 4);
        }
        
        ui_frame(obj, .label = "Doc 1", .fill = TRUE, .margin = 10, .padding = 10, .spacing = 10, .subcontainer = UI_CONTAINER_VBOX) {
            ui_togglebutton(obj, .label = "Attach", .onchange = doc1_attachment);
            
            ui_hbox(obj, .margin = 10, .spacing = 8) {
                ui_togglebutton(obj, .label = "Enable 1", .onchange = doc_enable_state1, .onchangedata = doc1);
                ui_togglebutton(obj, .label = "Enable 2", .onchange = doc_enable_state2, .onchangedata = doc1);
                ui_togglebutton(obj, .label = "Enable 3", .onchange = doc_enable_state3, .onchangedata = doc1);
                ui_togglebutton(obj, .label = "Enable 4", .onchange = doc_enable_state4, .onchangedata = doc1);
            }
            
            ui_frame(obj, .label = "Doc 2", .fill = TRUE, .margin = 10, .padding = 10, .spacing = 10, .subcontainer = UI_CONTAINER_VBOX) {
                ui_togglebutton(obj, .label = "Attach", .onchange = doc2_attachment);
            
                ui_hbox(obj, .margin = 10, .spacing = 8) {
                    ui_togglebutton(obj, .label = "Enable 1", .onchange = doc_enable_state1, .onchangedata = doc2);
                    ui_togglebutton(obj, .label = "Enable 2", .onchange = doc_enable_state2, .onchangedata = doc2);
                    ui_togglebutton(obj, .label = "Enable 3", .onchange = doc_enable_state3, .onchangedata = doc2);
                    ui_togglebutton(obj, .label = "Enable 4", .onchange = doc_enable_state4, .onchangedata = doc2);
                }
            }
        }
    }
    
    ui_show(obj);
}


#ifndef UI_WIN32

int main(int argc, char **argv) {
    ui_init(NULL, argc, argv);
    ui_onstartup(application_startup, NULL);
    ui_main();
    return 0;
}

#else

int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd) {
    //ui_init(NULL, argc, argv);
    //ui_onstartup(application_startup, NULL);
    //ui_main();
    return 0;
}

#endif