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 "../../include/pdfwindow/PDFWindow.h"
8 #include "../../include/pdfwindow/PWL_Wnd.h"
9 #include "../../include/pdfwindow/PWL_ListCtrl.h"
10
11 /* ---------------------------- CPWL_ListCtrl ---------------------------- */
12
CPWL_ListCtrl()13 CPWL_ListCtrl::CPWL_ListCtrl() :
14 m_rcContent(0,0,0,0),
15 m_ptScroll(0,0),
16 m_fItemSpace(0.0f),
17 m_fTopSpace(0.0f),
18 m_fBottomSpace(0.0f)
19 {
20 }
21
~CPWL_ListCtrl()22 CPWL_ListCtrl::~CPWL_ListCtrl()
23 {
24 }
25
SetScrollPos(const CPDF_Point & point)26 void CPWL_ListCtrl::SetScrollPos(const CPDF_Point& point)
27 {
28 m_ptScroll = point;
29
30 if (m_ptScroll.x < m_rcContent.left)
31 m_ptScroll.x = m_rcContent.left;
32
33 if (m_ptScroll.x > m_rcContent.right)
34 m_ptScroll.x = m_rcContent.right;
35
36 if (m_ptScroll.y > m_rcContent.top)
37 m_ptScroll.y = m_rcContent.top;
38
39 if (m_ptScroll.y < m_rcContent.bottom)
40 m_ptScroll.y = m_rcContent.bottom;
41 }
42
GetScrollPos() const43 CPDF_Point CPWL_ListCtrl::GetScrollPos() const
44 {
45 return m_ptScroll;
46 }
47
GetScrollArea() const48 CPDF_Rect CPWL_ListCtrl::GetScrollArea() const
49 {
50 return m_rcContent;
51 }
52
ResetFace()53 void CPWL_ListCtrl::ResetFace()
54 {
55 ResetAll(FALSE, 0);
56 }
57
ResetContent(FX_INT32 nStart)58 void CPWL_ListCtrl::ResetContent(FX_INT32 nStart)
59 {
60 if (nStart < 0)
61 nStart = 0;
62 if (nStart >= 0 && nStart < m_aChildren.GetSize())
63 ResetAll(TRUE, nStart);
64 }
65
GetContentsHeight(FX_FLOAT fLimitWidth)66 FX_FLOAT CPWL_ListCtrl::GetContentsHeight(FX_FLOAT fLimitWidth)
67 {
68 FX_FLOAT fRet = m_fTopSpace;
69
70 FX_FLOAT fBorderWidth = (FX_FLOAT)this->GetBorderWidth();
71
72 if (fLimitWidth > fBorderWidth* 2)
73 {
74 for (FX_INT32 i=0,sz=m_aChildren.GetSize(); i<sz; i++)
75 {
76 if (CPWL_Wnd* pChild = m_aChildren.GetAt(i))
77 {
78 FX_FLOAT fLeft = pChild->GetItemLeftMargin();
79 FX_FLOAT fRight = pChild->GetItemRightMargin();
80
81 fRet += pChild->GetItemHeight(fLimitWidth - fBorderWidth* 2 - fLeft - fRight);
82 fRet += m_fItemSpace;
83 }
84 }
85
86 fRet -= m_fItemSpace;
87 }
88
89 fRet += m_fBottomSpace;
90
91 return fRet;
92 }
93
ResetAll(FX_BOOL bMove,FX_INT32 nStart)94 void CPWL_ListCtrl::ResetAll(FX_BOOL bMove, FX_INT32 nStart)
95 {
96 CPDF_Rect rcClient = GetClientRect();
97
98 FX_FLOAT fWidth = rcClient.Width();
99
100 FX_FLOAT fy = 0.0f - m_fTopSpace;
101
102 if (nStart-1 >= 0 && nStart-1 < m_aChildren.GetSize())
103 if (CPWL_Wnd* pChild = m_aChildren.GetAt(nStart-1))
104 fy = pChild->GetWindowRect().bottom - m_fItemSpace;
105
106 for (FX_INT32 i=nStart,sz=m_aChildren.GetSize(); i<sz; i++)
107 {
108 if (CPWL_Wnd* pChild = m_aChildren.GetAt(i))
109 {
110 FX_FLOAT fLeft = pChild->GetItemLeftMargin();
111 FX_FLOAT fRight = pChild->GetItemRightMargin();
112
113 pChild->SetChildMatrix(
114 CPDF_Matrix(1,0,0,1,
115 rcClient.left - m_ptScroll.x,
116 rcClient.top - m_ptScroll.y)
117 );
118
119 if (bMove)
120 {
121 FX_FLOAT fItemHeight = pChild->GetItemHeight(fWidth - fLeft - fRight);
122 pChild->Move(CPDF_Rect(fLeft, fy-fItemHeight, fWidth - fRight, fy), TRUE, FALSE);
123 fy -= fItemHeight;
124 fy -= m_fItemSpace;
125 }
126 }
127 }
128
129 fy += m_fItemSpace;
130
131 fy -= m_fBottomSpace;
132
133 if (bMove)
134 {
135 m_rcContent.left = 0;
136 m_rcContent.top = 0;
137 m_rcContent.right = fWidth;
138 m_rcContent.bottom = fy;
139 }
140 }
141
SetItemSpace(FX_FLOAT fSpace)142 void CPWL_ListCtrl::SetItemSpace(FX_FLOAT fSpace)
143 {
144 m_fItemSpace = fSpace;
145 }
146
SetTopSpace(FX_FLOAT fSpace)147 void CPWL_ListCtrl::SetTopSpace(FX_FLOAT fSpace)
148 {
149 m_fTopSpace = fSpace;
150 }
151
SetBottomSpace(FX_FLOAT fSpace)152 void CPWL_ListCtrl::SetBottomSpace(FX_FLOAT fSpace)
153 {
154 m_fBottomSpace = fSpace;
155 }
156
RePosChildWnd()157 void CPWL_ListCtrl::RePosChildWnd()
158 {
159 ResetFace();
160 }
161
DrawChildAppearance(CFX_RenderDevice * pDevice,CPDF_Matrix * pUser2Device)162 void CPWL_ListCtrl::DrawChildAppearance(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device)
163 {
164 pDevice->SaveState();
165 CPDF_Rect rcClient = GetClientRect();
166 CPDF_Rect rcTemp = rcClient;
167 pUser2Device->TransformRect(rcTemp);
168 FX_RECT rcClip((FX_INT32)rcTemp.left,
169 (FX_INT32)rcTemp.bottom,
170 (FX_INT32)rcTemp.right,
171 (FX_INT32)rcTemp.top);
172
173 pDevice->SetClip_Rect(&rcClip);
174
175 for (FX_INT32 i=0,sz=m_aChildren.GetSize(); i<sz; i++)
176 {
177 if (CPWL_Wnd * pChild = m_aChildren.GetAt(i))
178 {
179 CPDF_Rect rcChild = pChild->ChildToParent(pChild->GetWindowRect());
180 if (!(rcChild.top < rcClient.bottom || rcChild.bottom > rcClient.top))
181 {
182 CPDF_Matrix mt = pChild->GetChildMatrix();
183 if (mt.IsIdentity())
184 {
185 pChild->DrawAppearance(pDevice,pUser2Device);
186 }
187 else
188 {
189 mt.Concat(*pUser2Device);
190 pChild->DrawAppearance(pDevice,&mt);
191 }
192 }
193 }
194 }
195
196 pDevice->RestoreState();
197 }
198
GetItemIndex(CPWL_Wnd * pItem)199 FX_INT32 CPWL_ListCtrl::GetItemIndex(CPWL_Wnd* pItem)
200 {
201 for (FX_INT32 i=0, sz=m_aChildren.GetSize(); i<sz; i++)
202 {
203 if (pItem == m_aChildren.GetAt(i))
204 return i;
205 }
206
207 return -1;
208 }
209
InToOut(const CPDF_Point & point) const210 CPDF_Point CPWL_ListCtrl::InToOut(const CPDF_Point& point) const
211 {
212 CPDF_Rect rcClient = GetClientRect();
213
214 return CPDF_Point(point.x + rcClient.left - m_ptScroll.x,
215 point.y + rcClient.top - m_ptScroll.y);
216 }
217
OutToIn(const CPDF_Point & point) const218 CPDF_Point CPWL_ListCtrl::OutToIn(const CPDF_Point& point) const
219 {
220 CPDF_Rect rcClient = GetClientRect();
221
222 return CPDF_Point(point.x - rcClient.left + m_ptScroll.x,
223 point.y - rcClient.top + m_ptScroll.y);
224 }
225
InToOut(const CPDF_Rect & rect) const226 CPDF_Rect CPWL_ListCtrl::InToOut(const CPDF_Rect& rect) const
227 {
228 CPDF_Rect rcClient = GetClientRect();
229
230 return CPDF_Rect(rect.left + rcClient.left - m_ptScroll.x,
231 rect.bottom + rcClient.top - m_ptScroll.y,
232 rect.right + rcClient.left - m_ptScroll.x,
233 rect.top + rcClient.top - m_ptScroll.y);
234 }
235
OutToIn(const CPDF_Rect & rect) const236 CPDF_Rect CPWL_ListCtrl::OutToIn(const CPDF_Rect& rect) const
237 {
238 CPDF_Rect rcClient = GetClientRect();
239
240 return CPDF_Rect(rect.left - rcClient.left + m_ptScroll.x,
241 rect.bottom - rcClient.top + m_ptScroll.y,
242 rect.right - rcClient.left + m_ptScroll.x,
243 rect.top - rcClient.top + m_ptScroll.y);
244 }
245
246