blob: 01160b6266deff2c832ce9ac0d5ce627152fa376 [file] [log] [blame]
// 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 <utility>
#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/fwl_widgetdef.h"
#include "xfa/fwl/ifwl_themeprovider.h"
namespace {
const int kCaptionMargin = 5;
} // namespace
CFWL_CheckBox::CFWL_CheckBox(CFWL_App* app)
: CFWL_Widget(app, Properties(), nullptr) {
m_TTOStyles.single_line_ = true;
}
CFWL_CheckBox::~CFWL_CheckBox() = default;
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;
UpdateTextOutStyles();
Layout();
}
void CFWL_CheckBox::DrawWidget(CFGAS_GEGraphics* pGraphics,
const CFX_Matrix& matrix) {
if (!pGraphics)
return;
if (HasBorder())
DrawBorder(pGraphics, CFWL_Part::Border, 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_PartRect = m_ClientRect;
if (m_Properties.m_dwStates & FWL_WGTSTATE_Focused)
param.m_pRtData = &m_FocusRect;
IFWL_ThemeProvider* pTheme = GetThemeProvider();
pTheme->DrawBackground(param);
param.m_iPart = CFWL_Part::CheckBox;
param.m_PartRect = m_BoxRect;
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_PartRect = m_CaptionRect;
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_Properties.m_dwStates &= ~FWL_STATE_CKB_CheckMask;
switch (iCheck) {
case 1:
m_Properties.m_dwStates |= FWL_STATE_CKB_Checked;
break;
case 2:
if (m_Properties.m_dwStyleExes & FWL_STYLEEXT_CKB_3State)
m_Properties.m_dwStates |= FWL_STATE_CKB_Neutral;
break;
default:
break;
}
RepaintRect(m_ClientRect);
}
void CFWL_CheckBox::Layout() {
m_WidgetRect.width = FXSYS_roundf(m_WidgetRect.width);
m_WidgetRect.height = FXSYS_roundf(m_WidgetRect.height);
m_ClientRect = GetClientRect();
float fTextLeft = m_ClientRect.left + m_fBoxHeight;
m_BoxRect = CFX_RectF(m_ClientRect.TopLeft(), m_fBoxHeight, m_fBoxHeight);
m_CaptionRect =
CFX_RectF(fTextLeft, m_ClientRect.top, m_ClientRect.right() - fTextLeft,
m_ClientRect.height);
m_CaptionRect.Inflate(-kCaptionMargin, -kCaptionMargin);
CFX_RectF rtFocus = m_CaptionRect;
CalcTextRect(L"Check box", m_TTOStyles, m_iTTOAlign, &rtFocus);
m_FocusRect = CFX_RectF(m_CaptionRect.TopLeft(),
std::max(m_CaptionRect.width, rtFocus.width),
std::min(m_CaptionRect.height, rtFocus.height));
m_FocusRect.Inflate(1, 1);
}
uint32_t CFWL_CheckBox::GetPartStates() const {
int32_t dwStates = CFWL_PartState_Normal;
if ((m_Properties.m_dwStates & FWL_STATE_CKB_CheckMask) ==
FWL_STATE_CKB_Neutral) {
dwStates = CFWL_PartState_Neutral;
} else if ((m_Properties.m_dwStates & FWL_STATE_CKB_CheckMask) ==
FWL_STATE_CKB_Checked) {
dwStates = CFWL_PartState_Checked;
}
if (m_Properties.m_dwStates & FWL_WGTSTATE_Disabled)
dwStates |= CFWL_PartState_Disabled;
else if (m_Properties.m_dwStates & FWL_STATE_CKB_Hovered)
dwStates |= CFWL_PartState_Hovered;
else if (m_Properties.m_dwStates & FWL_STATE_CKB_Pressed)
dwStates |= CFWL_PartState_Pressed;
else
dwStates |= CFWL_PartState_Normal;
if (m_Properties.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_Properties.m_dwStates;
if (m_Properties.m_dwStyleExes & FWL_STYLEEXT_CKB_RadioButton) {
if ((m_Properties.m_dwStates & FWL_STATE_CKB_CheckMask) ==
FWL_STATE_CKB_Unchecked) {
m_Properties.m_dwStates |= FWL_STATE_CKB_Checked;
}
} else {
if ((m_Properties.m_dwStates & FWL_STATE_CKB_CheckMask) ==
FWL_STATE_CKB_Neutral) {
m_Properties.m_dwStates &= ~FWL_STATE_CKB_CheckMask;
if (m_Properties.m_dwStyleExes & FWL_STYLEEXT_CKB_3State)
m_Properties.m_dwStates |= FWL_STATE_CKB_Checked;
} else if ((m_Properties.m_dwStates & FWL_STATE_CKB_CheckMask) ==
FWL_STATE_CKB_Checked) {
m_Properties.m_dwStates &= ~FWL_STATE_CKB_CheckMask;
} else {
if (m_Properties.m_dwStyleExes & FWL_STYLEEXT_CKB_3State)
m_Properties.m_dwStates |= FWL_STATE_CKB_Neutral;
else
m_Properties.m_dwStates |= FWL_STATE_CKB_Checked;
}
}
RepaintRect(m_ClientRect);
if (dwFirststate == m_Properties.m_dwStates)
return;
CFWL_Event wmCheckBoxState(CFWL_Event::Type::CheckStateChanged, this);
DispatchEvent(&wmCheckBoxState);
}
void CFWL_CheckBox::OnProcessMessage(CFWL_Message* pMessage) {
switch (pMessage->GetType()) {
case CFWL_Message::Type::kSetFocus:
OnFocusChanged(true);
break;
case CFWL_Message::Type::kKillFocus:
OnFocusChanged(false);
break;
case CFWL_Message::Type::kMouse: {
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::kKey: {
CFWL_MessageKey* pKey = static_cast<CFWL_MessageKey*>(pMessage);
if (pKey->m_dwCmd == CFWL_MessageKey::Type::kKeyDown)
OnKeyDown(pKey);
break;
}
default:
break;
}
// Dst target could be |this|, continue only if not destroyed by above.
if (pMessage->GetDstTarget())
CFWL_Widget::OnProcessMessage(pMessage);
}
void CFWL_CheckBox::OnDrawWidget(CFGAS_GEGraphics* pGraphics,
const CFX_Matrix& matrix) {
DrawWidget(pGraphics, matrix);
}
void CFWL_CheckBox::OnFocusChanged(bool bSet) {
if (bSet)
m_Properties.m_dwStates |= FWL_WGTSTATE_Focused;
else
m_Properties.m_dwStates &= ~FWL_WGTSTATE_Focused;
RepaintRect(m_ClientRect);
}
void CFWL_CheckBox::OnLButtonDown() {
if (m_Properties.m_dwStates & FWL_WGTSTATE_Disabled)
return;
m_bBtnDown = true;
m_Properties.m_dwStates &= ~FWL_STATE_CKB_Hovered;
m_Properties.m_dwStates |= FWL_STATE_CKB_Pressed;
RepaintRect(m_ClientRect);
}
void CFWL_CheckBox::OnLButtonUp(CFWL_MessageMouse* pMsg) {
if (!m_bBtnDown)
return;
m_bBtnDown = false;
if (!m_ClientRect.Contains(pMsg->m_pos))
return;
m_Properties.m_dwStates |= FWL_STATE_CKB_Hovered;
m_Properties.m_dwStates &= ~FWL_STATE_CKB_Pressed;
NextStates();
}
void CFWL_CheckBox::OnMouseMove(CFWL_MessageMouse* pMsg) {
if (m_Properties.m_dwStates & FWL_WGTSTATE_Disabled)
return;
bool bRepaint = false;
if (m_bBtnDown) {
if (m_ClientRect.Contains(pMsg->m_pos)) {
if ((m_Properties.m_dwStates & FWL_STATE_CKB_Pressed) == 0) {
bRepaint = true;
m_Properties.m_dwStates |= FWL_STATE_CKB_Pressed;
}
if ((m_Properties.m_dwStates & FWL_STATE_CKB_Hovered)) {
bRepaint = true;
m_Properties.m_dwStates &= ~FWL_STATE_CKB_Hovered;
}
} else {
if (m_Properties.m_dwStates & FWL_STATE_CKB_Pressed) {
bRepaint = true;
m_Properties.m_dwStates &= ~FWL_STATE_CKB_Pressed;
}
if ((m_Properties.m_dwStates & FWL_STATE_CKB_Hovered) == 0) {
bRepaint = true;
m_Properties.m_dwStates |= FWL_STATE_CKB_Hovered;
}
}
} else {
if (m_ClientRect.Contains(pMsg->m_pos)) {
if ((m_Properties.m_dwStates & FWL_STATE_CKB_Hovered) == 0) {
bRepaint = true;
m_Properties.m_dwStates |= FWL_STATE_CKB_Hovered;
}
}
}
if (bRepaint)
RepaintRect(m_BoxRect);
}
void CFWL_CheckBox::OnMouseLeave() {
if (m_bBtnDown)
m_Properties.m_dwStates |= FWL_STATE_CKB_Hovered;
else
m_Properties.m_dwStates &= ~FWL_STATE_CKB_Hovered;
RepaintRect(m_BoxRect);
}
void CFWL_CheckBox::OnKeyDown(CFWL_MessageKey* pMsg) {
if (pMsg->m_dwKeyCode == XFA_FWL_VKEY_Tab)
return;
if (pMsg->m_dwKeyCode == XFA_FWL_VKEY_Return ||
pMsg->m_dwKeyCode == XFA_FWL_VKEY_Space) {
NextStates();
}
}