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