1/*
2 * Copyright (c) 2020-2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include "components/ui_radio_button.h"
17
18#include "common/image.h"
19#include "components/root_view.h"
20#include "components/ui_view_group.h"
21#include "draw/draw_image.h"
22#include "engines/gfx/gfx_engine_manager.h"
23#include "gfx_utils/graphic_log.h"
24#include "imgdecode/cache_manager.h"
25#include "securec.h"
26
27namespace {
28constexpr int16_t DEFAULT_RADIUS_BIG = 11;
29constexpr int16_t DEFAULT_RADIUS_SMALL = 6;
30constexpr int16_t DEFAULT_LINE_WIDTH = 1;
31#if DEFAULT_ANIMATION
32constexpr float SCALE_BEZIER_CONTROL_POINT_X_1 = 0.33;
33constexpr float SCALE_BEZIER_CONTROL_POINT_X_2 = 0.67;
34constexpr float ALPHA_BEZIER_CONTROL_POINT_X_1 = 0.2;
35constexpr float ALPHA_BEZIER_CONTROL_POINT_X_2 = 0.2;
36#endif
37} // namespace
38namespace OHOS {
39UIRadioButton::UIRadioButton() : UIRadioButton(nullptr) {}
40UIRadioButton::UIRadioButton(const char* name)
41    : name_(nullptr),
42      radiusBig_(DEFAULT_RADIUS_BIG),
43      radiusSmall_(DEFAULT_RADIUS_SMALL),
44      currentRadius_(0),
45      lineWidth_(DEFAULT_LINE_WIDTH)
46{
47    SetName(name);
48    image_[UNSELECTED].SetSrc("");
49    image_[SELECTED].SetSrc("");
50    Resize(width_, height_);
51}
52
53bool UIRadioButton::OnClickEvent(const ClickEvent& event)
54{
55    SetState(SELECTED, true);
56    Invalidate();
57    UIView* view = this;
58    while ((view != nullptr) && (view->GetParent() != nullptr)) {
59        view = view->GetParent();
60    }
61    FindRadioButtonAndChangeState(view);
62    return UIView::OnClickEvent(event);
63}
64
65void UIRadioButton::CalculateSize()
66{
67    width_ = GetWidth();
68    height_ = GetHeight();
69    int16_t minValue = (width_ > height_) ? height_ : width_;
70    radiusBig_ = DEFAULT_RADIUS_BIG * minValue / DEFAULT_HOT_WIDTH;
71    radiusSmall_ = DEFAULT_RADIUS_SMALL * minValue / DEFAULT_HOT_WIDTH;
72    if (minValue >= DEFAULT_HOT_WIDTH) {
73        lineWidth_ = DEFAULT_LINE_WIDTH * minValue / DEFAULT_HOT_WIDTH;
74    }
75#if DEFAULT_ANIMATION
76    if (checkBoxAnimator_.GetState() != Animator::START) {
77        currentRadius_ = (state_ == SELECTED) ? radiusSmall_ : 0;
78    }
79#else
80    currentRadius_ = (state_ == SELECTED) ? radiusSmall_ : 0;
81#endif
82}
83
84void UIRadioButton::OnDraw(BufferInfo& gfxDstBuffer, const Rect& invalidatedArea)
85{
86    if ((image_[SELECTED].GetSrcType() != IMG_SRC_UNKNOWN) && (image_[UNSELECTED].GetSrcType() != IMG_SRC_UNKNOWN)) {
87        UICheckBox::OnDraw(gfxDstBuffer, invalidatedArea);
88    } else {
89        CalculateSize();
90        BaseGfxEngine* baseGfxEngine = BaseGfxEngine::GetInstance();
91        baseGfxEngine->DrawRect(gfxDstBuffer, GetRect(), invalidatedArea, *style_, opaScale_);
92        Rect contentRect = GetContentRect();
93        int16_t dx = width_ >> 1;
94        int16_t dy = height_ >> 1;
95        int16_t x = contentRect.GetX() + dx;
96        int16_t y = contentRect.GetY() + dy;
97        ArcInfo arcInfoBig = {{x, y}, {0}, radiusBig_, 0, CIRCLE_IN_DEGREE, nullptr};
98        ArcInfo arcInfoSmall = {{x, y}, {0}, currentRadius_, 0, CIRCLE_IN_DEGREE, nullptr};
99        Rect trunc = invalidatedArea;
100        bool isIntersect = trunc.Intersect(trunc, contentRect);
101        if (isIntersect) {
102            Style style = StyleDefault::GetBackgroundTransparentStyle();
103            if (backgroundOpacity_ != OPA_OPAQUE) {
104                style.lineColor_ = Color::White();
105                style.lineWidth_ = lineWidth_;
106                // 0xa8 : opacity of drawing unselected button arc edge.
107                baseGfxEngine->DrawArc(gfxDstBuffer, arcInfoBig, trunc, style, 0xa8, CapType::CAP_NONE);
108            }
109            style.lineWidth_ = arcInfoBig.radius;
110            style.lineColor_ = selectedStateColor_;
111            baseGfxEngine->DrawArc(gfxDstBuffer, arcInfoBig, trunc, style, backgroundOpacity_,
112                                   CapType::CAP_NONE);
113            style.lineWidth_ = arcInfoSmall.radius;
114            style.lineColor_ = Color::White();
115            baseGfxEngine->DrawArc(gfxDstBuffer, arcInfoSmall, trunc, style, OPA_OPAQUE,
116                                   CapType::CAP_NONE);
117        }
118    }
119}
120
121void UIRadioButton::SetName(const char* name)
122{
123    if (name == nullptr) {
124        return;
125    }
126    if (name_ != nullptr) {
127        UIFree(name_);
128        name_ = nullptr;
129    }
130    uint32_t nameLen = static_cast<uint32_t>(strlen(name) + 1);
131    if (nameLen > MAX_TEXT_LENGTH) {
132        return;
133    }
134    name_ = static_cast<char*>(UIMalloc(nameLen));
135    if (name_ != nullptr) {
136        if (memcpy_s(name_, nameLen, name, nameLen) != EOK) {
137            UIFree(name_);
138            name_ = nullptr;
139            return;
140        }
141    }
142}
143
144void UIRadioButton::FindRadioButtonAndChangeState(UIView* view)
145{
146    if ((view == nullptr) || (name_ == nullptr)) {
147        return;
148    }
149    if (view->IsViewGroup()) {
150        UIView* childView = static_cast<UIViewGroup*>(view)->GetChildrenHead();
151        while (childView != nullptr) {
152            FindRadioButtonAndChangeState(childView);
153            childView = childView->GetNextSibling();
154        }
155    }
156    if ((view == this) || (view->GetViewType() != UI_RADIO_BUTTON)) {
157        return;
158    }
159    UIRadioButton* uiRadioButtonInfo = static_cast<UIRadioButton*>(view);
160    if ((uiRadioButtonInfo->GetName() != nullptr) && (strcmp(uiRadioButtonInfo->GetName(), name_) == 0)) {
161        uiRadioButtonInfo->SetState(UNSELECTED, true);
162    }
163}
164#if DEFAULT_ANIMATION
165void UIRadioButton::Callback(UIView* view)
166{
167    runTime_ = checkBoxAnimator_.GetRunTime();
168    float x = static_cast<float>(runTime_) / checkBoxAnimator_.GetTime();
169    float coefficient =
170        Interpolation::GetBezierY(x, SCALE_BEZIER_CONTROL_POINT_X_1, 0, SCALE_BEZIER_CONTROL_POINT_X_2, 1);
171    backgroundOpacity_ = (state_ == SELECTED) ? (static_cast<uint8_t>(coefficient * OPA_OPAQUE)) :
172                                                (static_cast<uint8_t>((1 - coefficient) * OPA_OPAQUE));
173    coefficient = Interpolation::GetBezierY(x, ALPHA_BEZIER_CONTROL_POINT_X_1, 0, ALPHA_BEZIER_CONTROL_POINT_X_2, 1);
174    currentRadius_ = (state_ == SELECTED) ? (static_cast<uint8_t>(coefficient * radiusSmall_)) :
175                                            (static_cast<uint8_t>((1 - coefficient) * radiusSmall_));
176    Invalidate();
177}
178#endif
179} // namespace OHOS
180