1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include "xfa/fwl/cfwl_checkbox.h"
8
9 #include <algorithm>
10 #include <memory>
11 #include <utility>
12 #include <vector>
13
14 #include "third_party/base/ptr_util.h"
15 #include "xfa/fde/tto/fde_textout.h"
16 #include "xfa/fwl/cfwl_app.h"
17 #include "xfa/fwl/cfwl_event.h"
18 #include "xfa/fwl/cfwl_messagekey.h"
19 #include "xfa/fwl/cfwl_messagemouse.h"
20 #include "xfa/fwl/cfwl_notedriver.h"
21 #include "xfa/fwl/cfwl_themebackground.h"
22 #include "xfa/fwl/cfwl_themetext.h"
23 #include "xfa/fwl/cfwl_widgetmgr.h"
24 #include "xfa/fwl/ifwl_themeprovider.h"
25
26 namespace {
27
28 const int kCaptionMargin = 5;
29
30 } // namespace
31
CFWL_CheckBox(const CFWL_App * app)32 CFWL_CheckBox::CFWL_CheckBox(const CFWL_App* app)
33 : CFWL_Widget(app, pdfium::MakeUnique<CFWL_WidgetProperties>(), nullptr),
34 m_dwTTOStyles(FDE_TTOSTYLE_SingleLine),
35 m_iTTOAlign(FDE_TTOALIGNMENT_Center),
36 m_bBtnDown(false),
37 m_fBoxHeight(16.0f) {
38 m_rtClient.Reset();
39 m_rtBox.Reset();
40 m_rtCaption.Reset();
41 m_rtFocus.Reset();
42 }
43
~CFWL_CheckBox()44 CFWL_CheckBox::~CFWL_CheckBox() {}
45
GetClassID() const46 FWL_Type CFWL_CheckBox::GetClassID() const {
47 return FWL_Type::CheckBox;
48 }
49
SetBoxSize(FX_FLOAT fHeight)50 void CFWL_CheckBox::SetBoxSize(FX_FLOAT fHeight) {
51 m_fBoxHeight = fHeight;
52 }
53
Update()54 void CFWL_CheckBox::Update() {
55 if (IsLocked())
56 return;
57 if (!m_pProperties->m_pThemeProvider)
58 m_pProperties->m_pThemeProvider = GetAvailableTheme();
59
60 UpdateTextOutStyles();
61 Layout();
62 }
63
DrawWidget(CFX_Graphics * pGraphics,const CFX_Matrix * pMatrix)64 void CFWL_CheckBox::DrawWidget(CFX_Graphics* pGraphics,
65 const CFX_Matrix* pMatrix) {
66 if (!pGraphics)
67 return;
68 if (!m_pProperties->m_pThemeProvider)
69 return;
70
71 IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider;
72 if (HasBorder()) {
73 DrawBorder(pGraphics, CFWL_Part::Border, m_pProperties->m_pThemeProvider,
74 pMatrix);
75 }
76
77 int32_t dwStates = GetPartStates();
78
79 CFWL_ThemeBackground param;
80 param.m_pWidget = this;
81 param.m_iPart = CFWL_Part::Background;
82 param.m_dwStates = dwStates;
83 param.m_pGraphics = pGraphics;
84 if (pMatrix)
85 param.m_matrix.Concat(*pMatrix);
86 param.m_rtPart = m_rtClient;
87 if (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)
88 param.m_pData = &m_rtFocus;
89 pTheme->DrawBackground(¶m);
90
91 param.m_iPart = CFWL_Part::CheckBox;
92 param.m_rtPart = m_rtBox;
93 pTheme->DrawBackground(¶m);
94
95 CFWL_ThemeText textParam;
96 textParam.m_pWidget = this;
97 textParam.m_iPart = CFWL_Part::Caption;
98 textParam.m_dwStates = dwStates;
99 textParam.m_pGraphics = pGraphics;
100 if (pMatrix)
101 textParam.m_matrix.Concat(*pMatrix);
102 textParam.m_rtPart = m_rtCaption;
103 textParam.m_wsText = L"Check box";
104 textParam.m_dwTTOStyles = m_dwTTOStyles;
105 textParam.m_iTTOAlign = m_iTTOAlign;
106 pTheme->DrawText(&textParam);
107 }
108
SetCheckState(int32_t iCheck)109 void CFWL_CheckBox::SetCheckState(int32_t iCheck) {
110 m_pProperties->m_dwStates &= ~FWL_STATE_CKB_CheckMask;
111 switch (iCheck) {
112 case 1:
113 m_pProperties->m_dwStates |= FWL_STATE_CKB_Checked;
114 break;
115 case 2:
116 if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CKB_3State)
117 m_pProperties->m_dwStates |= FWL_STATE_CKB_Neutral;
118 break;
119 default:
120 break;
121 }
122 RepaintRect(m_rtClient);
123 }
124
Layout()125 void CFWL_CheckBox::Layout() {
126 m_pProperties->m_rtWidget.width =
127 FXSYS_round(m_pProperties->m_rtWidget.width);
128 m_pProperties->m_rtWidget.height =
129 FXSYS_round(m_pProperties->m_rtWidget.height);
130 m_rtClient = GetClientRect();
131
132 FX_FLOAT fTextLeft = m_rtClient.left + m_fBoxHeight;
133 m_rtBox = CFX_RectF(m_rtClient.TopLeft(), m_fBoxHeight, m_fBoxHeight);
134 m_rtCaption = CFX_RectF(fTextLeft, m_rtClient.top,
135 m_rtClient.right() - fTextLeft, m_rtClient.height);
136 m_rtCaption.Inflate(-kCaptionMargin, -kCaptionMargin);
137
138 CFX_RectF rtFocus(m_rtCaption.left, m_rtCaption.top, m_rtCaption.width,
139 m_rtCaption.height);
140
141 CalcTextRect(L"Check box", m_pProperties->m_pThemeProvider, m_dwTTOStyles,
142 m_iTTOAlign, rtFocus);
143
144 m_rtFocus = CFX_RectF(m_rtCaption.TopLeft(),
145 std::max(m_rtCaption.width, rtFocus.width),
146 std::min(m_rtCaption.height, rtFocus.height));
147 m_rtFocus.Inflate(1, 1);
148 }
149
GetPartStates() const150 uint32_t CFWL_CheckBox::GetPartStates() const {
151 int32_t dwStates = CFWL_PartState_Normal;
152 if ((m_pProperties->m_dwStates & FWL_STATE_CKB_CheckMask) ==
153 FWL_STATE_CKB_Neutral) {
154 dwStates = CFWL_PartState_Neutral;
155 } else if ((m_pProperties->m_dwStates & FWL_STATE_CKB_CheckMask) ==
156 FWL_STATE_CKB_Checked) {
157 dwStates = CFWL_PartState_Checked;
158 }
159 if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
160 dwStates |= CFWL_PartState_Disabled;
161 else if (m_pProperties->m_dwStates & FWL_STATE_CKB_Hovered)
162 dwStates |= CFWL_PartState_Hovered;
163 else if (m_pProperties->m_dwStates & FWL_STATE_CKB_Pressed)
164 dwStates |= CFWL_PartState_Pressed;
165 else
166 dwStates |= CFWL_PartState_Normal;
167 if (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)
168 dwStates |= CFWL_PartState_Focused;
169 return dwStates;
170 }
171
UpdateTextOutStyles()172 void CFWL_CheckBox::UpdateTextOutStyles() {
173 m_iTTOAlign = FDE_TTOALIGNMENT_TopLeft;
174 m_dwTTOStyles = 0;
175 m_dwTTOStyles |= FDE_TTOSTYLE_SingleLine;
176 }
177
NextStates()178 void CFWL_CheckBox::NextStates() {
179 uint32_t dwFirststate = m_pProperties->m_dwStates;
180 if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CKB_RadioButton) {
181 if ((m_pProperties->m_dwStates & FWL_STATE_CKB_CheckMask) ==
182 FWL_STATE_CKB_Unchecked) {
183 CFWL_WidgetMgr* pWidgetMgr = GetOwnerApp()->GetWidgetMgr();
184 if (!pWidgetMgr->IsFormDisabled()) {
185 std::vector<CFWL_Widget*> radioarr =
186 pWidgetMgr->GetSameGroupRadioButton(this);
187 for (const auto& pWidget : radioarr) {
188 CFWL_CheckBox* pCheckBox = static_cast<CFWL_CheckBox*>(pWidget);
189 if (pCheckBox != this &&
190 pCheckBox->GetStates() & FWL_STATE_CKB_Checked) {
191 pCheckBox->SetCheckState(0);
192 m_pWidgetMgr->RepaintWidget(
193 pCheckBox, CFX_RectF(0, 0, pCheckBox->GetWidgetRect().Size()));
194 break;
195 }
196 }
197 }
198 m_pProperties->m_dwStates |= FWL_STATE_CKB_Checked;
199 }
200 } else {
201 if ((m_pProperties->m_dwStates & FWL_STATE_CKB_CheckMask) ==
202 FWL_STATE_CKB_Neutral) {
203 m_pProperties->m_dwStates &= ~FWL_STATE_CKB_CheckMask;
204 if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CKB_3State)
205 m_pProperties->m_dwStates |= FWL_STATE_CKB_Checked;
206 } else if ((m_pProperties->m_dwStates & FWL_STATE_CKB_CheckMask) ==
207 FWL_STATE_CKB_Checked) {
208 m_pProperties->m_dwStates &= ~FWL_STATE_CKB_CheckMask;
209 } else {
210 if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CKB_3State)
211 m_pProperties->m_dwStates |= FWL_STATE_CKB_Neutral;
212 else
213 m_pProperties->m_dwStates |= FWL_STATE_CKB_Checked;
214 }
215 }
216
217 RepaintRect(m_rtClient);
218 if (dwFirststate == m_pProperties->m_dwStates)
219 return;
220
221 CFWL_Event wmCheckBoxState(CFWL_Event::Type::CheckStateChanged, this);
222 DispatchEvent(&wmCheckBoxState);
223 }
224
OnProcessMessage(CFWL_Message * pMessage)225 void CFWL_CheckBox::OnProcessMessage(CFWL_Message* pMessage) {
226 if (!pMessage)
227 return;
228
229 switch (pMessage->GetType()) {
230 case CFWL_Message::Type::SetFocus:
231 OnFocusChanged(true);
232 break;
233 case CFWL_Message::Type::KillFocus:
234 OnFocusChanged(false);
235 break;
236 case CFWL_Message::Type::Mouse: {
237 CFWL_MessageMouse* pMsg = static_cast<CFWL_MessageMouse*>(pMessage);
238 switch (pMsg->m_dwCmd) {
239 case FWL_MouseCommand::LeftButtonDown:
240 OnLButtonDown();
241 break;
242 case FWL_MouseCommand::LeftButtonUp:
243 OnLButtonUp(pMsg);
244 break;
245 case FWL_MouseCommand::Move:
246 OnMouseMove(pMsg);
247 break;
248 case FWL_MouseCommand::Leave:
249 OnMouseLeave();
250 break;
251 default:
252 break;
253 }
254 break;
255 }
256 case CFWL_Message::Type::Key: {
257 CFWL_MessageKey* pKey = static_cast<CFWL_MessageKey*>(pMessage);
258 if (pKey->m_dwCmd == FWL_KeyCommand::KeyDown)
259 OnKeyDown(pKey);
260 break;
261 }
262 default:
263 break;
264 }
265
266 CFWL_Widget::OnProcessMessage(pMessage);
267 }
268
OnDrawWidget(CFX_Graphics * pGraphics,const CFX_Matrix * pMatrix)269 void CFWL_CheckBox::OnDrawWidget(CFX_Graphics* pGraphics,
270 const CFX_Matrix* pMatrix) {
271 DrawWidget(pGraphics, pMatrix);
272 }
273
OnFocusChanged(bool bSet)274 void CFWL_CheckBox::OnFocusChanged(bool bSet) {
275 if (bSet)
276 m_pProperties->m_dwStates |= FWL_WGTSTATE_Focused;
277 else
278 m_pProperties->m_dwStates &= ~FWL_WGTSTATE_Focused;
279
280 RepaintRect(m_rtClient);
281 }
282
OnLButtonDown()283 void CFWL_CheckBox::OnLButtonDown() {
284 if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
285 return;
286 if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0)
287 SetFocus(true);
288
289 m_bBtnDown = true;
290 m_pProperties->m_dwStates &= ~FWL_STATE_CKB_Hovered;
291 m_pProperties->m_dwStates |= FWL_STATE_CKB_Pressed;
292 RepaintRect(m_rtClient);
293 }
294
OnLButtonUp(CFWL_MessageMouse * pMsg)295 void CFWL_CheckBox::OnLButtonUp(CFWL_MessageMouse* pMsg) {
296 if (!m_bBtnDown)
297 return;
298
299 m_bBtnDown = false;
300 if (!m_rtClient.Contains(pMsg->m_pos))
301 return;
302
303 m_pProperties->m_dwStates |= FWL_STATE_CKB_Hovered;
304 m_pProperties->m_dwStates &= ~FWL_STATE_CKB_Pressed;
305 NextStates();
306 }
307
OnMouseMove(CFWL_MessageMouse * pMsg)308 void CFWL_CheckBox::OnMouseMove(CFWL_MessageMouse* pMsg) {
309 if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
310 return;
311
312 bool bRepaint = false;
313 if (m_bBtnDown) {
314 if (m_rtClient.Contains(pMsg->m_pos)) {
315 if ((m_pProperties->m_dwStates & FWL_STATE_CKB_Pressed) == 0) {
316 bRepaint = true;
317 m_pProperties->m_dwStates |= FWL_STATE_CKB_Pressed;
318 }
319 if ((m_pProperties->m_dwStates & FWL_STATE_CKB_Hovered)) {
320 bRepaint = true;
321 m_pProperties->m_dwStates &= ~FWL_STATE_CKB_Hovered;
322 }
323 } else {
324 if (m_pProperties->m_dwStates & FWL_STATE_CKB_Pressed) {
325 bRepaint = true;
326 m_pProperties->m_dwStates &= ~FWL_STATE_CKB_Pressed;
327 }
328 if ((m_pProperties->m_dwStates & FWL_STATE_CKB_Hovered) == 0) {
329 bRepaint = true;
330 m_pProperties->m_dwStates |= FWL_STATE_CKB_Hovered;
331 }
332 }
333 } else {
334 if (m_rtClient.Contains(pMsg->m_pos)) {
335 if ((m_pProperties->m_dwStates & FWL_STATE_CKB_Hovered) == 0) {
336 bRepaint = true;
337 m_pProperties->m_dwStates |= FWL_STATE_CKB_Hovered;
338 }
339 }
340 }
341 if (bRepaint)
342 RepaintRect(m_rtBox);
343 }
344
OnMouseLeave()345 void CFWL_CheckBox::OnMouseLeave() {
346 if (m_bBtnDown)
347 m_pProperties->m_dwStates |= FWL_STATE_CKB_Hovered;
348 else
349 m_pProperties->m_dwStates &= ~FWL_STATE_CKB_Hovered;
350
351 RepaintRect(m_rtBox);
352 }
353
OnKeyDown(CFWL_MessageKey * pMsg)354 void CFWL_CheckBox::OnKeyDown(CFWL_MessageKey* pMsg) {
355 if (pMsg->m_dwKeyCode == FWL_VKEY_Tab)
356 return;
357 if (pMsg->m_dwKeyCode == FWL_VKEY_Return ||
358 pMsg->m_dwKeyCode == FWL_VKEY_Space) {
359 NextStates();
360 }
361 }
362