Sun, 01 Oct 2023 14:40:43 +0200
implement radio button (WinUI3)
/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright 2023 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 "button.h" #include "util.h" #include "container.h" #include "../common/object.h" #include "../common/context.h" using namespace winrt; using namespace Microsoft::UI::Xaml; using namespace Microsoft::UI::Xaml::Controls; using namespace Windows::UI::Xaml::Interop; using namespace winrt::Windows::Foundation; using namespace winrt::Microsoft::UI::Xaml::Controls::Primitives; static void set_button_label(ButtonBase button, const char* label, const char* stockid) { if (label) { wchar_t* wlabel = str2wstr(label, nullptr); button.Content(box_value(wlabel)); free(wlabel); } // TODO: stockid } UIWIDGET ui_button_create(UiObject* obj, UiButtonArgs args) { UiObject* current = uic_current_obj(obj); // create button with label Button button = Button(); set_button_label(button, args.label, args.stockid); // create toolkit wrapper object and register destructor UIElement elm = button; UiWidget* widget = new UiWidget(elm); ui_context_add_widget_destructor(current->ctx, widget); // register callback if (args.onclick) { widget->obj = obj; widget->event_func = (ui_eventfunc)args.onclick; widget->event_data = args.onclickdata; button.Click([widget](IInspectable const& sender, RoutedEventArgs) { ui_callback cb = (ui_callback)widget->event_func; UiEvent evt; evt.obj = (UiObject*)widget->obj; evt.window = evt.obj->window; evt.document = evt.obj->ctx->document; evt.eventdata = nullptr; evt.intval = 0; cb(&evt, widget->event_data); }); } // add button to current container UI_APPLY_LAYOUT1(current, args); current->container->Add(button, false); return widget; } static UIWIDGET create_togglebutton(UiObject *obj, ToggleButton button, UiToggleArgs args) { UiObject* current = uic_current_obj(obj); // set label set_button_label(button, args.label, args.stockid); // create toolkit wrapper object and register destructor UIElement elm = button; UiWidget* widget = new UiWidget(elm); ui_context_add_widget_destructor(current->ctx, widget); // bind variable UiVar* var = nullptr; if (args.value) { var = uic_create_value_var(current->ctx, args.value); } else if (args.varname) { var = uic_create_var(obj->ctx, args.varname, UI_VAR_INTEGER); } if (var) { UiInteger* value = (UiInteger*)var->value; value->obj = widget; value->get = ui_toggle_button_get; value->set = ui_toggle_button_set; } // add button to current container UI_APPLY_LAYOUT1(current, args); current->container->Add(button, false); return widget; } UIWIDGET ui_togglebutton_create(UiObject* obj, UiToggleArgs args) { ToggleButton button = ToggleButton(); return create_togglebutton(obj, button, args); } UIWIDGET ui_checkbox_create(UiObject* obj, UiToggleArgs args) { CheckBox button = CheckBox(); return create_togglebutton(obj, button, args); } UIWIDGET ui_radiobutton_create(UiObject* obj, UiToggleArgs args) { RadioButton button = RadioButton(); UiObject* current = uic_current_obj(obj); // set label set_button_label(button, args.label, args.stockid); // create toolkit wrapper object and register destructor UIElement elm = button; UiWidget* widget = new UiWidget(elm); ui_context_add_widget_destructor(current->ctx, widget); UiVar* var = nullptr; if (args.value) { var = uic_create_value_var(current->ctx, args.value); } else if (args.varname) { var = uic_create_var(obj->ctx, args.varname, UI_VAR_INTEGER); } // bind radio button to the value if (var) { UiInteger* value = (UiInteger*)var->value; // store a list of radio buttons in the value CxList* radioButtons = (CxList*) (value->obj ? value->obj : cxLinkedListCreate(current->ctx->allocator, NULL, CX_STORE_POINTERS)); // get or create the group name static int groupCount = 0; winrt::hstring groupName; if (radioButtons->size == 0) { groupName = winrt::to_hstring(groupCount++); } else { UiWidget* firstButtonWidget = (UiWidget*)cxListAt(radioButtons, 0); RadioButton firstRadioButton = firstButtonWidget->uielement.as<RadioButton>(); groupName = firstRadioButton.GroupName(); } // set the group name for the new radiobutton cxListAdd(radioButtons, widget); button.GroupName(groupName); value->obj = radioButtons; value->get = ui_radio_button_get; value->set = ui_radio_button_set; } // add button to current container UI_APPLY_LAYOUT1(current, args); current->container->Add(button, false); return widget; } int64_t ui_toggle_button_get(UiInteger* integer) { UiWidget* widget = (UiWidget*)integer->obj; ToggleButton toggleButton = widget->uielement.as<ToggleButton>(); int val = toggleButton.IsChecked().GetBoolean(); integer->value = val; return val; } void ui_toggle_button_set(UiInteger* integer, int64_t value) { UiWidget* widget = (UiWidget*)integer->obj; ToggleButton toggleButton = widget->uielement.as<ToggleButton>(); toggleButton.IsChecked((bool)value); integer->value = value; } extern "C" int64_t ui_radio_button_get(UiInteger * integer) { CxList* list = (CxList*)integer->obj; CxIterator i = cxListIterator(list); int selection = -1; cx_foreach(UiWidget*, widget, i) { ToggleButton button = widget->uielement.as<ToggleButton>(); if (button.IsChecked().GetBoolean()) { selection = i.index; break; } } integer->value = selection; return selection; } extern "C" void ui_radio_button_set(UiInteger * integer, int64_t value) { CxList* list = (CxList*)integer->obj; UiWidget* widget = (UiWidget*)cxListAt(list, value); if (widget) { ToggleButton button = widget->uielement.as<ToggleButton>(); button.IsChecked(true); integer->value = value; } }