mirror of
https://github.com/hajimehoshi/ebiten.git
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105 lines
2.8 KiB
Go
105 lines
2.8 KiB
Go
// Copyright 2023 The Ebitengine Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build !ios
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package textinput
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// TODO: Remove Cgo after ebitengine/purego#143 is resolved.
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// #cgo CFLAGS: -x objective-c
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// #cgo LDFLAGS: -framework Cocoa
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//
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// #import <Cocoa/Cocoa.h>
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//
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// @interface TextInputClient : NSView<NSTextInputClient>
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// @end
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//
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// static TextInputClient* getTextInputClient() {
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// static TextInputClient* textInputClient;
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// if (!textInputClient) {
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// textInputClient = [[TextInputClient alloc] init];
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// }
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// return textInputClient;
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// }
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//
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// static void start(int x, int y) {
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// TextInputClient* textInputClient = getTextInputClient();
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// NSWindow* window = [[NSApplication sharedApplication] mainWindow];
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// [[window contentView] addSubview: textInputClient];
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// [window makeFirstResponder: textInputClient];
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//
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// y = [[window contentView] frame].size.height - y - 4;
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// [textInputClient setFrame:NSMakeRect(x, y, 1, 1)];
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// }
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import "C"
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import (
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"github.com/hajimehoshi/ebiten/v2/internal/ui"
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)
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type textInput struct {
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// session must be accessed from the main thread.
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session *session
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}
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var theTextInput textInput
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func (t *textInput) Start(x, y int) (chan State, func()) {
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var session *session
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ui.RunOnMainThread(func() {
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if t.session != nil {
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t.session.end()
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t.session = nil
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}
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C.start(C.int(x), C.int(y))
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session = newSession()
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t.session = session
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})
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return session.ch, session.end
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}
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//export ebitengine_textinput_update
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func ebitengine_textinput_update(text *C.char, start, end C.int, committed C.int) {
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theTextInput.update(C.GoString(text), int(start), int(end), committed != 0)
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}
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func (t *textInput) update(text string, start, end int, committed bool) {
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if t.session != nil {
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startInBytes := convertUTF16CountToByteCount(text, start)
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endInBytes := convertUTF16CountToByteCount(text, end)
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t.session.trySend(State{
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Text: text,
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CompositionSelectionStartInBytes: startInBytes,
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CompositionSelectionEndInBytes: endInBytes,
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Committed: committed,
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})
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}
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if committed {
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t.end()
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}
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}
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//export ebitengine_textinput_end
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func ebitengine_textinput_end() {
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theTextInput.end()
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}
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func (t *textInput) end() {
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if t.session != nil {
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t.session.end()
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t.session = nil
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}
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}
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