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 "xfa/fwl/theme/cfwl_scrollbartp.h"
8
9 #include "xfa/fwl/cfwl_scrollbar.h"
10 #include "xfa/fwl/cfwl_themebackground.h"
11 #include "xfa/fwl/cfwl_widget.h"
12 #include "xfa/fwl/ifwl_themeprovider.h"
13 #include "xfa/fxgraphics/cfx_color.h"
14 #include "xfa/fxgraphics/cfx_path.h"
15
16 namespace {
17
18 const float kPawLength = 12.5f;
19
20 } // namespace
21
CFWL_ScrollBarTP()22 CFWL_ScrollBarTP::CFWL_ScrollBarTP() : m_pThemeData(new SBThemeData) {
23 SetThemeData();
24 }
25
~CFWL_ScrollBarTP()26 CFWL_ScrollBarTP::~CFWL_ScrollBarTP() {}
27
DrawBackground(CFWL_ThemeBackground * pParams)28 void CFWL_ScrollBarTP::DrawBackground(CFWL_ThemeBackground* pParams) {
29 if (!pParams)
30 return;
31
32 CFWL_Widget* pWidget = pParams->m_pWidget;
33 FWLTHEME_STATE eState = FWLTHEME_STATE_Normal;
34 if (pParams->m_dwStates & CFWL_PartState_Hovered)
35 eState = FWLTHEME_STATE_Hover;
36 else if (pParams->m_dwStates & CFWL_PartState_Pressed)
37 eState = FWLTHEME_STATE_Pressed;
38 else if (pParams->m_dwStates & CFWL_PartState_Disabled)
39 eState = FWLTHEME_STATE_Disable;
40
41 CFX_Graphics* pGraphics = pParams->m_pGraphics;
42 CFX_RectF* pRect = &pParams->m_rtPart;
43 bool bVert = !!pWidget->GetStylesEx();
44 switch (pParams->m_iPart) {
45 case CFWL_Part::ForeArrow: {
46 DrawMaxMinBtn(pGraphics, pRect,
47 bVert ? FWLTHEME_DIRECTION_Up : FWLTHEME_DIRECTION_Left,
48 eState, &pParams->m_matrix);
49 break;
50 }
51 case CFWL_Part::BackArrow: {
52 DrawMaxMinBtn(pGraphics, pRect,
53 bVert ? FWLTHEME_DIRECTION_Down : FWLTHEME_DIRECTION_Right,
54 eState, &pParams->m_matrix);
55 break;
56 }
57 case CFWL_Part::Thumb: {
58 DrawThumbBtn(pGraphics, pRect, bVert, eState, true, &pParams->m_matrix);
59 break;
60 }
61 case CFWL_Part::LowerTrack: {
62 DrawTrack(pGraphics, pRect, bVert, eState, true, &pParams->m_matrix);
63 break;
64 }
65 case CFWL_Part::UpperTrack: {
66 DrawTrack(pGraphics, pRect, bVert, eState, false, &pParams->m_matrix);
67 break;
68 }
69 default:
70 break;
71 }
72 }
73
DrawThumbBtn(CFX_Graphics * pGraphics,const CFX_RectF * pRect,bool bVert,FWLTHEME_STATE eState,bool bPawButton,CFX_Matrix * pMatrix)74 void CFWL_ScrollBarTP::DrawThumbBtn(CFX_Graphics* pGraphics,
75 const CFX_RectF* pRect,
76 bool bVert,
77 FWLTHEME_STATE eState,
78 bool bPawButton,
79 CFX_Matrix* pMatrix) {
80 if (eState < FWLTHEME_STATE_Normal || eState > FWLTHEME_STATE_Disable)
81 return;
82
83 CFX_Path path;
84 CFX_RectF rect(*pRect);
85 if (bVert) {
86 rect.Deflate(1, 0);
87 if (rect.IsEmpty(0.1f))
88 return;
89
90 path.AddRectangle(rect.left, rect.top, rect.width, rect.height);
91 DrawAxialShading(pGraphics, rect.left, rect.top, rect.right(), rect.top,
92 m_pThemeData->clrBtnBK[eState - 1][0],
93 m_pThemeData->clrBtnBK[eState - 1][1], &path,
94 FXFILL_WINDING, pMatrix);
95 CFX_Color rcStroke;
96 rcStroke.Set(m_pThemeData->clrBtnBorder[eState - 1]);
97 pGraphics->SaveGraphState();
98 pGraphics->SetStrokeColor(&rcStroke);
99 pGraphics->StrokePath(&path, pMatrix);
100 pGraphics->RestoreGraphState();
101 } else {
102 rect.Deflate(0, 1);
103 if (rect.IsEmpty(0.1f))
104 return;
105
106 path.AddRectangle(rect.left, rect.top, rect.width, rect.height);
107 DrawAxialShading(pGraphics, rect.left, rect.top, rect.left, rect.bottom(),
108 m_pThemeData->clrBtnBK[eState - 1][0],
109 m_pThemeData->clrBtnBK[eState - 1][1], &path,
110 FXFILL_WINDING, pMatrix);
111 CFX_Color rcStroke;
112 rcStroke.Set(m_pThemeData->clrBtnBorder[eState - 1]);
113 pGraphics->SaveGraphState();
114 pGraphics->SetStrokeColor(&rcStroke);
115 pGraphics->StrokePath(&path, pMatrix);
116 pGraphics->RestoreGraphState();
117 }
118 }
119
DrawPaw(CFX_Graphics * pGraphics,const CFX_RectF * pRect,bool bVert,FWLTHEME_STATE eState,CFX_Matrix * pMatrix)120 void CFWL_ScrollBarTP::DrawPaw(CFX_Graphics* pGraphics,
121 const CFX_RectF* pRect,
122 bool bVert,
123 FWLTHEME_STATE eState,
124 CFX_Matrix* pMatrix) {
125 CFX_Path path;
126 if (bVert) {
127 FX_FLOAT fPawLen = kPawLength;
128 if (pRect->width / 2 <= fPawLen) {
129 fPawLen = (pRect->width - 6) / 2;
130 }
131
132 FX_FLOAT fX = pRect->left + pRect->width / 4;
133 FX_FLOAT fY = pRect->top + pRect->height / 2;
134 path.MoveTo(CFX_PointF(fX, fY - 4));
135 path.LineTo(CFX_PointF(fX + fPawLen, fY - 4));
136 path.MoveTo(CFX_PointF(fX, fY - 2));
137 path.LineTo(CFX_PointF(fX + fPawLen, fY - 2));
138 path.MoveTo(CFX_PointF(fX, fY));
139 path.LineTo(CFX_PointF(fX + fPawLen, fY));
140 path.MoveTo(CFX_PointF(fX, fY + 2));
141 path.LineTo(CFX_PointF(fX + fPawLen, fY + 2));
142
143 CFX_Color clrLight(m_pThemeData->clrPawColorLight[eState - 1]);
144 pGraphics->SetLineWidth(1);
145 pGraphics->SetStrokeColor(&clrLight);
146 pGraphics->StrokePath(&path);
147 fX++;
148
149 path.Clear();
150 path.MoveTo(CFX_PointF(fX, fY - 3));
151 path.LineTo(CFX_PointF(fX + fPawLen, fY - 3));
152 path.MoveTo(CFX_PointF(fX, fY - 1));
153 path.LineTo(CFX_PointF(fX + fPawLen, fY - 1));
154 path.MoveTo(CFX_PointF(fX, fY + 1));
155 path.LineTo(CFX_PointF(fX + fPawLen, fY + 1));
156 path.MoveTo(CFX_PointF(fX, fY + 3));
157 path.LineTo(CFX_PointF(fX + fPawLen, fY + 3));
158
159 CFX_Color clrDark(m_pThemeData->clrPawColorDark[eState - 1]);
160 pGraphics->SetLineWidth(1);
161 pGraphics->SetStrokeColor(&clrDark);
162 pGraphics->StrokePath(&path, pMatrix);
163 } else {
164 FX_FLOAT fPawLen = kPawLength;
165 if (pRect->height / 2 <= fPawLen) {
166 fPawLen = (pRect->height - 6) / 2;
167 }
168
169 FX_FLOAT fX = pRect->left + pRect->width / 2;
170 FX_FLOAT fY = pRect->top + pRect->height / 4;
171 path.MoveTo(CFX_PointF(fX - 4, fY));
172 path.LineTo(CFX_PointF(fX - 4, fY + fPawLen));
173 path.MoveTo(CFX_PointF(fX - 2, fY));
174 path.LineTo(CFX_PointF(fX - 2, fY + fPawLen));
175 path.MoveTo(CFX_PointF(fX, fY));
176 path.LineTo(CFX_PointF(fX, fY + fPawLen));
177 path.MoveTo(CFX_PointF(fX + 2, fY));
178 path.LineTo(CFX_PointF(fX + 2, fY + fPawLen));
179
180 CFX_Color clrLight(m_pThemeData->clrPawColorLight[eState - 1]);
181 pGraphics->SetLineWidth(1);
182 pGraphics->SetStrokeColor(&clrLight);
183 pGraphics->StrokePath(&path, pMatrix);
184 fY++;
185
186 path.Clear();
187 path.MoveTo(CFX_PointF(fX - 3, fY));
188 path.LineTo(CFX_PointF(fX - 3, fY + fPawLen));
189 path.MoveTo(CFX_PointF(fX - 1, fY));
190 path.LineTo(CFX_PointF(fX - 1, fY + fPawLen));
191 path.MoveTo(CFX_PointF(fX + 1, fY));
192 path.LineTo(CFX_PointF(fX + 1, fY + fPawLen));
193 path.MoveTo(CFX_PointF(fX + 3, fY));
194 path.LineTo(CFX_PointF(fX + 3, fY + fPawLen));
195
196 CFX_Color clrDark(m_pThemeData->clrPawColorDark[eState - 1]);
197 pGraphics->SetLineWidth(1);
198 pGraphics->SetStrokeColor(&clrDark);
199 pGraphics->StrokePath(&path, pMatrix);
200 }
201 }
202
DrawTrack(CFX_Graphics * pGraphics,const CFX_RectF * pRect,bool bVert,FWLTHEME_STATE eState,bool bLowerTrack,CFX_Matrix * pMatrix)203 void CFWL_ScrollBarTP::DrawTrack(CFX_Graphics* pGraphics,
204 const CFX_RectF* pRect,
205 bool bVert,
206 FWLTHEME_STATE eState,
207 bool bLowerTrack,
208 CFX_Matrix* pMatrix) {
209 if (eState < FWLTHEME_STATE_Normal || eState > FWLTHEME_STATE_Disable)
210 return;
211
212 pGraphics->SaveGraphState();
213 CFX_Color colorLine(ArgbEncode(255, 238, 237, 229));
214 CFX_Path path;
215 FX_FLOAT fRight = pRect->right();
216 FX_FLOAT fBottom = pRect->bottom();
217 if (bVert) {
218 path.AddRectangle(pRect->left, pRect->top, 1, pRect->height);
219 path.AddRectangle(fRight - 1, pRect->top, 1, pRect->height);
220 } else {
221 path.AddRectangle(pRect->left, pRect->top, pRect->width, 1);
222 path.AddRectangle(pRect->left, fBottom - 1, pRect->width, 1);
223 }
224 pGraphics->SetFillColor(&colorLine);
225 pGraphics->FillPath(&path, FXFILL_WINDING, pMatrix);
226 path.Clear();
227 path.AddRectangle(pRect->left + 1, pRect->top, pRect->width - 2,
228 pRect->height);
229 FX_FLOAT x1 = bVert ? pRect->left + 1 : pRect->left;
230 FX_FLOAT y1 = bVert ? pRect->top : pRect->top + 1;
231 FX_FLOAT x2 = bVert ? fRight - 1 : pRect->left;
232 FX_FLOAT y2 = bVert ? pRect->top : fBottom - 1;
233 pGraphics->RestoreGraphState();
234 DrawAxialShading(pGraphics, x1, y1, x2, y2, m_pThemeData->clrTrackBKStart,
235 m_pThemeData->clrTrackBKEnd, &path, FXFILL_WINDING, pMatrix);
236 }
237
DrawMaxMinBtn(CFX_Graphics * pGraphics,const CFX_RectF * pRect,FWLTHEME_DIRECTION eDict,FWLTHEME_STATE eState,CFX_Matrix * pMatrix)238 void CFWL_ScrollBarTP::DrawMaxMinBtn(CFX_Graphics* pGraphics,
239 const CFX_RectF* pRect,
240 FWLTHEME_DIRECTION eDict,
241 FWLTHEME_STATE eState,
242 CFX_Matrix* pMatrix) {
243 DrawTrack(pGraphics, pRect,
244 eDict == FWLTHEME_DIRECTION_Up || eDict == FWLTHEME_DIRECTION_Down,
245 eState, true, pMatrix);
246 CFX_RectF rtArrowBtn(*pRect);
247 rtArrowBtn.Deflate(1, 1, 1, 1);
248 DrawArrowBtn(pGraphics, &rtArrowBtn, eDict, eState, pMatrix);
249 }
250
SetThemeData()251 void CFWL_ScrollBarTP::SetThemeData() {
252 m_pThemeData->clrPawColorLight[3] = ArgbEncode(0xff, 208, 223, 172);
253 m_pThemeData->clrPawColorDark[3] = ArgbEncode(0xff, 140, 157, 115);
254 m_pThemeData->clrBtnBK[3][0] = ArgbEncode(0xff, 164, 180, 139);
255 m_pThemeData->clrBtnBK[3][1] = ArgbEncode(0xff, 141, 157, 115);
256 m_pThemeData->clrBtnBorder[3] = ArgbEncode(0xff, 236, 233, 216);
257 m_pThemeData->clrPawColorLight[0] = ArgbEncode(0xff, 238, 244, 254);
258 m_pThemeData->clrPawColorDark[0] = ArgbEncode(0xff, 140, 176, 248);
259 m_pThemeData->clrBtnBK[0][0] = ArgbEncode(0xff, 197, 213, 252);
260 m_pThemeData->clrBtnBK[0][1] = ArgbEncode(0xff, 182, 205, 251);
261 m_pThemeData->clrBtnBorder[0] = ArgbEncode(0xff, 148, 176, 221);
262 m_pThemeData->clrPawColorLight[1] = ArgbEncode(0xff, 252, 253, 255);
263 m_pThemeData->clrPawColorDark[1] = ArgbEncode(0xff, 156, 197, 255);
264 m_pThemeData->clrBtnBK[1][0] = ArgbEncode(0xff, 216, 232, 255);
265 m_pThemeData->clrBtnBK[1][1] = ArgbEncode(0xff, 204, 225, 255);
266 m_pThemeData->clrBtnBorder[1] = ArgbEncode(0xff, 218, 230, 254);
267 m_pThemeData->clrPawColorLight[2] = ArgbEncode(0xff, 207, 221, 253);
268 m_pThemeData->clrPawColorDark[2] = ArgbEncode(0xff, 131, 158, 216);
269 m_pThemeData->clrBtnBK[2][0] = ArgbEncode(0xff, 167, 190, 245);
270 m_pThemeData->clrBtnBK[2][1] = ArgbEncode(0xff, 146, 179, 249);
271 m_pThemeData->clrBtnBorder[2] = ArgbEncode(0xff, 124, 159, 211);
272 m_pThemeData->clrTrackBKStart = ArgbEncode(0xff, 243, 241, 236);
273 m_pThemeData->clrTrackBKEnd = ArgbEncode(0xff, 254, 254, 251);
274 }
275