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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "xfa/fwl/cfwl_checkbox.h"
#include <algorithm>
#include <memory>
#include <utility>
#include <vector>
#include "third_party/base/ptr_util.h"
#include "xfa/fde/cfde_textout.h"
#include "xfa/fwl/cfwl_app.h"
#include "xfa/fwl/cfwl_event.h"
#include "xfa/fwl/cfwl_messagekey.h"
#include "xfa/fwl/cfwl_messagemouse.h"
#include "xfa/fwl/cfwl_notedriver.h"
#include "xfa/fwl/cfwl_themebackground.h"
#include "xfa/fwl/cfwl_themetext.h"
#include "xfa/fwl/cfwl_widgetmgr.h"
#include "xfa/fwl/ifwl_themeprovider.h"
namespace {
const int kCaptionMargin = 5;
} // namespace
CFWL_CheckBox::CFWL_CheckBox(const CFWL_App* app)
: CFWL_Widget(app, pdfium::MakeUnique<CFWL_WidgetProperties>(), nullptr) {
m_TTOStyles.single_line_ = true;
}
CFWL_CheckBox::~CFWL_CheckBox() {}
FWL_Type CFWL_CheckBox::GetClassID() const {
return FWL_Type::CheckBox;
}
void CFWL_CheckBox::SetBoxSize(float fHeight) {
m_fBoxHeight = fHeight;
}
void CFWL_CheckBox::Update() {
if (IsLocked())
return;
if (!m_pProperties->m_pThemeProvider)
m_pProperties->m_pThemeProvider = GetAvailableTheme();
UpdateTextOutStyles();
Layout();
}
void CFWL_CheckBox::DrawWidget(CXFA_Graphics* pGraphics,
const CFX_Matrix& matrix) {
if (!pGraphics)
return;
IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider.Get();
if (!pTheme)
return;
if (HasBorder())
DrawBorder(pGraphics, CFWL_Part::Border, pTheme, matrix);
int32_t dwStates = GetPartStates();
CFWL_ThemeBackground param;
param.m_pWidget = this;
param.m_iPart = CFWL_Part::Background;
param.m_dwStates = dwStates;
param.m_pGraphics = pGraphics;
param.m_matrix.Concat(matrix);
param.m_rtPart = m_rtClient;
if (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)
param.m_pData = &m_rtFocus;
pTheme->DrawBackground(&param);
param.m_iPart = CFWL_Part::CheckBox;
param.m_rtPart = m_rtBox;
pTheme->DrawBackground(&param);
CFWL_ThemeText textParam;
textParam.m_pWidget = this;
textParam.m_iPart = CFWL_Part::Caption;
textParam.m_dwStates = dwStates;
textParam.m_pGraphics = pGraphics;
textParam.m_matrix.Concat(matrix);
textParam.m_rtPart = m_rtCaption;
textParam.m_wsText = L"Check box";
textParam.m_dwTTOStyles = m_TTOStyles;
textParam.m_iTTOAlign = m_iTTOAlign;
pTheme->DrawText(&textParam);
}
void CFWL_CheckBox::SetCheckState(int32_t iCheck) {
m_pProperties->m_dwStates &= ~FWL_STATE_CKB_CheckMask;
switch (iCheck) {
case 1:
m_pProperties->m_dwStates |= FWL_STATE_CKB_Checked;
break;
case 2:
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CKB_3State)
m_pProperties->m_dwStates |= FWL_STATE_CKB_Neutral;
break;
default:
break;
}
RepaintRect(m_rtClient);
}
void CFWL_CheckBox::Layout() {
m_pProperties->m_rtWidget.width =
FXSYS_round(m_pProperties->m_rtWidget.width);
m_pProperties->m_rtWidget.height =
FXSYS_round(m_pProperties->m_rtWidget.height);
m_rtClient = GetClientRect();
float fTextLeft = m_rtClient.left + m_fBoxHeight;
m_rtBox = CFX_RectF(m_rtClient.TopLeft(), m_fBoxHeight, m_fBoxHeight);
m_rtCaption = CFX_RectF(fTextLeft, m_rtClient.top,
m_rtClient.right() - fTextLeft, m_rtClient.height);
m_rtCaption.Inflate(-kCaptionMargin, -kCaptionMargin);
CFX_RectF rtFocus(m_rtCaption.left, m_rtCaption.top, m_rtCaption.width,
m_rtCaption.height);
CalcTextRect(L"Check box", m_pProperties->m_pThemeProvider.Get(), m_TTOStyles,
m_iTTOAlign, &rtFocus);
m_rtFocus = CFX_RectF(m_rtCaption.TopLeft(),
std::max(m_rtCaption.width, rtFocus.width),
std::min(m_rtCaption.height, rtFocus.height));
m_rtFocus.Inflate(1, 1);
}
uint32_t CFWL_CheckBox::GetPartStates() const {
int32_t dwStates = CFWL_PartState_Normal;
if ((m_pProperties->m_dwStates & FWL_STATE_CKB_CheckMask) ==
FWL_STATE_CKB_Neutral) {
dwStates = CFWL_PartState_Neutral;
} else if ((m_pProperties->m_dwStates & FWL_STATE_CKB_CheckMask) ==
FWL_STATE_CKB_Checked) {
dwStates = CFWL_PartState_Checked;
}
if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
dwStates |= CFWL_PartState_Disabled;
else if (m_pProperties->m_dwStates & FWL_STATE_CKB_Hovered)
dwStates |= CFWL_PartState_Hovered;
else if (m_pProperties->m_dwStates & FWL_STATE_CKB_Pressed)
dwStates |= CFWL_PartState_Pressed;
else
dwStates |= CFWL_PartState_Normal;
if (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)
dwStates |= CFWL_PartState_Focused;
return dwStates;
}
void CFWL_CheckBox::UpdateTextOutStyles() {
m_iTTOAlign = FDE_TextAlignment::kTopLeft;
m_TTOStyles.Reset();
m_TTOStyles.single_line_ = true;
}
void CFWL_CheckBox::NextStates() {
uint32_t dwFirststate = m_pProperties->m_dwStates;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CKB_RadioButton) {
if ((m_pProperties->m_dwStates & FWL_STATE_CKB_CheckMask) ==
FWL_STATE_CKB_Unchecked) {
m_pProperties->m_dwStates |= FWL_STATE_CKB_Checked;
}
} else {
if ((m_pProperties->m_dwStates & FWL_STATE_CKB_CheckMask) ==
FWL_STATE_CKB_Neutral) {
m_pProperties->m_dwStates &= ~FWL_STATE_CKB_CheckMask;
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CKB_3State)
m_pProperties->m_dwStates |= FWL_STATE_CKB_Checked;
} else if ((m_pProperties->m_dwStates & FWL_STATE_CKB_CheckMask) ==
FWL_STATE_CKB_Checked) {
m_pProperties->m_dwStates &= ~FWL_STATE_CKB_CheckMask;
} else {
if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_CKB_3State)
m_pProperties->m_dwStates |= FWL_STATE_CKB_Neutral;
else
m_pProperties->m_dwStates |= FWL_STATE_CKB_Checked;
}
}
RepaintRect(m_rtClient);
if (dwFirststate == m_pProperties->m_dwStates)
return;
CFWL_Event wmCheckBoxState(CFWL_Event::Type::CheckStateChanged, this);
DispatchEvent(&wmCheckBoxState);
}
void CFWL_CheckBox::OnProcessMessage(CFWL_Message* pMessage) {
if (!pMessage)
return;
switch (pMessage->GetType()) {
case CFWL_Message::Type::SetFocus:
OnFocusChanged(true);
break;
case CFWL_Message::Type::KillFocus:
OnFocusChanged(false);
break;
case CFWL_Message::Type::Mouse: {
CFWL_MessageMouse* pMsg = static_cast<CFWL_MessageMouse*>(pMessage);
switch (pMsg->m_dwCmd) {
case FWL_MouseCommand::LeftButtonDown:
OnLButtonDown();
break;
case FWL_MouseCommand::LeftButtonUp:
OnLButtonUp(pMsg);
break;
case FWL_MouseCommand::Move:
OnMouseMove(pMsg);
break;
case FWL_MouseCommand::Leave:
OnMouseLeave();
break;
default:
break;
}
break;
}
case CFWL_Message::Type::Key: {
CFWL_MessageKey* pKey = static_cast<CFWL_MessageKey*>(pMessage);
if (pKey->m_dwCmd == FWL_KeyCommand::KeyDown)
OnKeyDown(pKey);
break;
}
default:
break;
}
CFWL_Widget::OnProcessMessage(pMessage);
}
void CFWL_CheckBox::OnDrawWidget(CXFA_Graphics* pGraphics,
const CFX_Matrix& matrix) {
DrawWidget(pGraphics, matrix);
}
void CFWL_CheckBox::OnFocusChanged(bool bSet) {
if (bSet)
m_pProperties->m_dwStates |= FWL_WGTSTATE_Focused;
else
m_pProperties->m_dwStates &= ~FWL_WGTSTATE_Focused;
RepaintRect(m_rtClient);
}
void CFWL_CheckBox::OnLButtonDown() {
if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
return;
m_bBtnDown = true;
m_pProperties->m_dwStates &= ~FWL_STATE_CKB_Hovered;
m_pProperties->m_dwStates |= FWL_STATE_CKB_Pressed;
RepaintRect(m_rtClient);
}
void CFWL_CheckBox::OnLButtonUp(CFWL_MessageMouse* pMsg) {
if (!m_bBtnDown)
return;
m_bBtnDown = false;
if (!m_rtClient.Contains(pMsg->m_pos))
return;
m_pProperties->m_dwStates |= FWL_STATE_CKB_Hovered;
m_pProperties->m_dwStates &= ~FWL_STATE_CKB_Pressed;
NextStates();
}
void CFWL_CheckBox::OnMouseMove(CFWL_MessageMouse* pMsg) {
if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
return;
bool bRepaint = false;
if (m_bBtnDown) {
if (m_rtClient.Contains(pMsg->m_pos)) {
if ((m_pProperties->m_dwStates & FWL_STATE_CKB_Pressed) == 0) {
bRepaint = true;
m_pProperties->m_dwStates |= FWL_STATE_CKB_Pressed;
}
if ((m_pProperties->m_dwStates & FWL_STATE_CKB_Hovered)) {
bRepaint = true;
m_pProperties->m_dwStates &= ~FWL_STATE_CKB_Hovered;
}
} else {
if (m_pProperties->m_dwStates & FWL_STATE_CKB_Pressed) {
bRepaint = true;
m_pProperties->m_dwStates &= ~FWL_STATE_CKB_Pressed;
}
if ((m_pProperties->m_dwStates & FWL_STATE_CKB_Hovered) == 0) {
bRepaint = true;
m_pProperties->m_dwStates |= FWL_STATE_CKB_Hovered;
}
}
} else {
if (m_rtClient.Contains(pMsg->m_pos)) {
if ((m_pProperties->m_dwStates & FWL_STATE_CKB_Hovered) == 0) {
bRepaint = true;
m_pProperties->m_dwStates |= FWL_STATE_CKB_Hovered;
}
}
}
if (bRepaint)
RepaintRect(m_rtBox);
}
void CFWL_CheckBox::OnMouseLeave() {
if (m_bBtnDown)
m_pProperties->m_dwStates |= FWL_STATE_CKB_Hovered;
else
m_pProperties->m_dwStates &= ~FWL_STATE_CKB_Hovered;
RepaintRect(m_rtBox);
}
void CFWL_CheckBox::OnKeyDown(CFWL_MessageKey* pMsg) {
if (pMsg->m_dwKeyCode == FWL_VKEY_Tab)
return;
if (pMsg->m_dwKeyCode == FWL_VKEY_Return ||
pMsg->m_dwKeyCode == FWL_VKEY_Space) {
NextStates();
}
}