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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 "fpdfsdk/include/pdfwindow/PWL_ListCtrl.h" | |
8 #include "fpdfsdk/include/pdfwindow/PWL_Wnd.h" | |
9 | |
10 CPWL_ListCtrl::CPWL_ListCtrl() | |
11 : m_rcContent(0, 0, 0, 0), | |
12 m_ptScroll(0, 0), | |
13 m_fItemSpace(0.0f), | |
14 m_fTopSpace(0.0f), | |
15 m_fBottomSpace(0.0f) {} | |
16 | |
17 CPWL_ListCtrl::~CPWL_ListCtrl() {} | |
18 | |
19 void CPWL_ListCtrl::SetScrollPos(const CFX_FloatPoint& point) { | |
20 m_ptScroll = point; | |
21 | |
22 if (m_ptScroll.x < m_rcContent.left) | |
23 m_ptScroll.x = m_rcContent.left; | |
24 | |
25 if (m_ptScroll.x > m_rcContent.right) | |
26 m_ptScroll.x = m_rcContent.right; | |
27 | |
28 if (m_ptScroll.y > m_rcContent.top) | |
29 m_ptScroll.y = m_rcContent.top; | |
30 | |
31 if (m_ptScroll.y < m_rcContent.bottom) | |
32 m_ptScroll.y = m_rcContent.bottom; | |
33 } | |
34 | |
35 CFX_FloatPoint CPWL_ListCtrl::GetScrollPos() const { | |
36 return m_ptScroll; | |
37 } | |
38 | |
39 CFX_FloatRect CPWL_ListCtrl::GetScrollArea() const { | |
40 return m_rcContent; | |
41 } | |
42 | |
43 void CPWL_ListCtrl::ResetFace() { | |
44 ResetAll(FALSE, 0); | |
45 } | |
46 | |
47 void CPWL_ListCtrl::ResetContent(int32_t nStart) { | |
48 if (nStart < 0) | |
49 nStart = 0; | |
50 if (nStart >= 0 && nStart < m_aChildren.GetSize()) | |
51 ResetAll(TRUE, nStart); | |
52 } | |
53 | |
54 FX_FLOAT CPWL_ListCtrl::GetContentsHeight(FX_FLOAT fLimitWidth) { | |
55 FX_FLOAT fRet = m_fTopSpace; | |
56 | |
57 FX_FLOAT fBorderWidth = (FX_FLOAT)GetBorderWidth(); | |
58 | |
59 if (fLimitWidth > fBorderWidth * 2) { | |
60 for (int32_t i = 0, sz = m_aChildren.GetSize(); i < sz; i++) { | |
61 if (CPWL_Wnd* pChild = m_aChildren.GetAt(i)) { | |
62 FX_FLOAT fLeft = pChild->GetItemLeftMargin(); | |
63 FX_FLOAT fRight = pChild->GetItemRightMargin(); | |
64 | |
65 fRet += pChild->GetItemHeight(fLimitWidth - fBorderWidth * 2 - fLeft - | |
66 fRight); | |
67 fRet += m_fItemSpace; | |
68 } | |
69 } | |
70 | |
71 fRet -= m_fItemSpace; | |
72 } | |
73 | |
74 fRet += m_fBottomSpace; | |
75 | |
76 return fRet; | |
77 } | |
78 | |
79 void CPWL_ListCtrl::ResetAll(FX_BOOL bMove, int32_t nStart) { | |
80 CFX_FloatRect rcClient = GetClientRect(); | |
81 | |
82 FX_FLOAT fWidth = rcClient.Width(); | |
83 | |
84 FX_FLOAT fy = 0.0f - m_fTopSpace; | |
85 | |
86 if (nStart - 1 >= 0 && nStart - 1 < m_aChildren.GetSize()) | |
87 if (CPWL_Wnd* pChild = m_aChildren.GetAt(nStart - 1)) | |
88 fy = pChild->GetWindowRect().bottom - m_fItemSpace; | |
89 | |
90 for (int32_t i = nStart, sz = m_aChildren.GetSize(); i < sz; i++) { | |
91 if (CPWL_Wnd* pChild = m_aChildren.GetAt(i)) { | |
92 FX_FLOAT fLeft = pChild->GetItemLeftMargin(); | |
93 FX_FLOAT fRight = pChild->GetItemRightMargin(); | |
94 | |
95 pChild->SetChildMatrix(CFX_Matrix(1, 0, 0, 1, | |
96 rcClient.left - m_ptScroll.x, | |
97 rcClient.top - m_ptScroll.y)); | |
98 | |
99 if (bMove) { | |
100 FX_FLOAT fItemHeight = pChild->GetItemHeight(fWidth - fLeft - fRight); | |
101 pChild->Move( | |
102 CFX_FloatRect(fLeft, fy - fItemHeight, fWidth - fRight, fy), TRUE, | |
103 FALSE); | |
104 fy -= fItemHeight; | |
105 fy -= m_fItemSpace; | |
106 } | |
107 } | |
108 } | |
109 | |
110 fy += m_fItemSpace; | |
111 | |
112 fy -= m_fBottomSpace; | |
113 | |
114 if (bMove) { | |
115 m_rcContent.left = 0; | |
116 m_rcContent.top = 0; | |
117 m_rcContent.right = fWidth; | |
118 m_rcContent.bottom = fy; | |
119 } | |
120 } | |
121 | |
122 void CPWL_ListCtrl::SetItemSpace(FX_FLOAT fSpace) { | |
123 m_fItemSpace = fSpace; | |
124 } | |
125 | |
126 void CPWL_ListCtrl::SetTopSpace(FX_FLOAT fSpace) { | |
127 m_fTopSpace = fSpace; | |
128 } | |
129 | |
130 void CPWL_ListCtrl::SetBottomSpace(FX_FLOAT fSpace) { | |
131 m_fBottomSpace = fSpace; | |
132 } | |
133 | |
134 void CPWL_ListCtrl::RePosChildWnd() { | |
135 ResetFace(); | |
136 } | |
137 | |
138 void CPWL_ListCtrl::DrawChildAppearance(CFX_RenderDevice* pDevice, | |
139 CFX_Matrix* pUser2Device) { | |
140 pDevice->SaveState(); | |
141 CFX_FloatRect rcClient = GetClientRect(); | |
142 CFX_FloatRect rcTemp = rcClient; | |
143 pUser2Device->TransformRect(rcTemp); | |
144 pDevice->SetClip_Rect(FX_RECT((int32_t)rcTemp.left, (int32_t)rcTemp.bottom, | |
145 (int32_t)rcTemp.right, (int32_t)rcTemp.top)); | |
146 | |
147 for (int32_t i = 0, sz = m_aChildren.GetSize(); i < sz; i++) { | |
148 if (CPWL_Wnd* pChild = m_aChildren.GetAt(i)) { | |
149 CFX_FloatRect rcChild = pChild->ChildToParent(pChild->GetWindowRect()); | |
150 if (!(rcChild.top < rcClient.bottom || rcChild.bottom > rcClient.top)) { | |
151 CFX_Matrix mt = pChild->GetChildMatrix(); | |
152 if (mt.IsIdentity()) { | |
153 pChild->DrawAppearance(pDevice, pUser2Device); | |
154 } else { | |
155 mt.Concat(*pUser2Device); | |
156 pChild->DrawAppearance(pDevice, &mt); | |
157 } | |
158 } | |
159 } | |
160 } | |
161 | |
162 pDevice->RestoreState(); | |
163 } | |
164 | |
165 int32_t CPWL_ListCtrl::GetItemIndex(CPWL_Wnd* pItem) { | |
166 for (int32_t i = 0, sz = m_aChildren.GetSize(); i < sz; i++) { | |
167 if (pItem == m_aChildren.GetAt(i)) | |
168 return i; | |
169 } | |
170 | |
171 return -1; | |
172 } | |
173 | |
174 CFX_FloatPoint CPWL_ListCtrl::InToOut(const CFX_FloatPoint& point) const { | |
175 CFX_FloatRect rcClient = GetClientRect(); | |
176 | |
177 return CFX_FloatPoint(point.x + rcClient.left - m_ptScroll.x, | |
178 point.y + rcClient.top - m_ptScroll.y); | |
179 } | |
180 | |
181 CFX_FloatPoint CPWL_ListCtrl::OutToIn(const CFX_FloatPoint& point) const { | |
182 CFX_FloatRect rcClient = GetClientRect(); | |
183 | |
184 return CFX_FloatPoint(point.x - rcClient.left + m_ptScroll.x, | |
185 point.y - rcClient.top + m_ptScroll.y); | |
186 } | |
187 | |
188 CFX_FloatRect CPWL_ListCtrl::InToOut(const CFX_FloatRect& rect) const { | |
189 CFX_FloatRect rcClient = GetClientRect(); | |
190 | |
191 return CFX_FloatRect(rect.left + rcClient.left - m_ptScroll.x, | |
192 rect.bottom + rcClient.top - m_ptScroll.y, | |
193 rect.right + rcClient.left - m_ptScroll.x, | |
194 rect.top + rcClient.top - m_ptScroll.y); | |
195 } | |
196 | |
197 CFX_FloatRect CPWL_ListCtrl::OutToIn(const CFX_FloatRect& rect) const { | |
198 CFX_FloatRect rcClient = GetClientRect(); | |
199 | |
200 return CFX_FloatRect(rect.left - rcClient.left + m_ptScroll.x, | |
201 rect.bottom - rcClient.top + m_ptScroll.y, | |
202 rect.right - rcClient.left + m_ptScroll.x, | |
203 rect.top - rcClient.top + m_ptScroll.y); | |
204 } | |
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