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1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // Name: tests/sizers/boxsizer.cpp | |
3 | // Purpose: Unit tests for wxBoxSizer | |
4 | // Author: Vadim Zeitlin | |
5 | // Created: 2010-03-06 | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 2010 Vadim Zeitlin <vadim@wxwidgets.org> | |
8 | /////////////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // ---------------------------------------------------------------------------- | |
11 | // headers | |
12 | // ---------------------------------------------------------------------------- | |
13 | ||
14 | #include "testprec.h" | |
15 | ||
16 | #ifdef __BORLANDC__ | |
17 | #pragma hdrstop | |
18 | #endif | |
19 | ||
20 | #ifndef WX_PRECOMP | |
21 | #include "wx/app.h" | |
22 | #include "wx/sizer.h" | |
93b87dd9 | 23 | #include "wx/listbox.h" |
869c7a94 VZ |
24 | #endif // WX_PRECOMP |
25 | ||
232fdc63 | 26 | #include "asserthelper.h" |
869c7a94 VZ |
27 | |
28 | // ---------------------------------------------------------------------------- | |
29 | // test class | |
30 | // ---------------------------------------------------------------------------- | |
31 | ||
32 | class BoxSizerTestCase : public CppUnit::TestCase | |
33 | { | |
34 | public: | |
35 | BoxSizerTestCase() { } | |
36 | ||
37 | virtual void setUp(); | |
38 | virtual void tearDown(); | |
39 | ||
40 | private: | |
41 | CPPUNIT_TEST_SUITE( BoxSizerTestCase ); | |
42 | CPPUNIT_TEST( Size1 ); | |
729f53d4 | 43 | CPPUNIT_TEST( Size3 ); |
f27d62bf | 44 | CPPUNIT_TEST( CalcMin ); |
93b87dd9 VZ |
45 | CPPUNIT_TEST( BestSizeRespectsMaxSize ); |
46 | CPPUNIT_TEST( RecalcSizesRespectsMaxSize1 ); | |
47 | CPPUNIT_TEST( RecalcSizesRespectsMaxSize2 ); | |
869c7a94 VZ |
48 | CPPUNIT_TEST_SUITE_END(); |
49 | ||
50 | void Size1(); | |
729f53d4 | 51 | void Size3(); |
f27d62bf | 52 | void CalcMin(); |
93b87dd9 VZ |
53 | void BestSizeRespectsMaxSize(); |
54 | void RecalcSizesRespectsMaxSize1(); | |
55 | void RecalcSizesRespectsMaxSize2(); | |
869c7a94 VZ |
56 | |
57 | wxWindow *m_win; | |
58 | wxSizer *m_sizer; | |
59 | ||
60 | DECLARE_NO_COPY_CLASS(BoxSizerTestCase) | |
61 | }; | |
62 | ||
63 | // register in the unnamed registry so that these tests are run by default | |
64 | CPPUNIT_TEST_SUITE_REGISTRATION( BoxSizerTestCase ); | |
65 | ||
e3778b4d | 66 | // also include in its own registry so that these tests can be run alone |
869c7a94 VZ |
67 | CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( BoxSizerTestCase, "BoxSizerTestCase" ); |
68 | ||
69 | // ---------------------------------------------------------------------------- | |
70 | // test initialization | |
71 | // ---------------------------------------------------------------------------- | |
72 | ||
73 | void BoxSizerTestCase::setUp() | |
74 | { | |
75 | m_win = new wxWindow(wxTheApp->GetTopWindow(), wxID_ANY); | |
76 | m_win->SetClientSize(127, 35); | |
77 | ||
78 | m_sizer = new wxBoxSizer(wxHORIZONTAL); | |
79 | m_win->SetSizer(m_sizer); | |
80 | } | |
81 | ||
82 | void BoxSizerTestCase::tearDown() | |
83 | { | |
84 | delete m_win; | |
85 | m_win = NULL; | |
86 | ||
87 | m_sizer = NULL; | |
88 | } | |
89 | ||
90 | // ---------------------------------------------------------------------------- | |
91 | // tests themselves | |
92 | // ---------------------------------------------------------------------------- | |
93 | ||
94 | void BoxSizerTestCase::Size1() | |
95 | { | |
96 | const wxSize sizeTotal = m_win->GetClientSize(); | |
97 | const wxSize sizeChild = sizeTotal / 2; | |
98 | ||
99 | wxWindow * const | |
100 | child = new wxWindow(m_win, wxID_ANY, wxDefaultPosition, sizeChild); | |
101 | m_sizer->Add(child); | |
102 | m_win->Layout(); | |
103 | CPPUNIT_ASSERT_EQUAL( sizeChild, child->GetSize() ); | |
729f53d4 | 104 | |
869c7a94 VZ |
105 | m_sizer->Clear(); |
106 | m_sizer->Add(child, wxSizerFlags(1)); | |
107 | m_win->Layout(); | |
108 | CPPUNIT_ASSERT_EQUAL( wxSize(sizeTotal.x, sizeChild.y), child->GetSize() ); | |
109 | ||
110 | m_sizer->Clear(); | |
111 | m_sizer->Add(child, wxSizerFlags(1).Expand()); | |
112 | m_win->Layout(); | |
113 | CPPUNIT_ASSERT_EQUAL( sizeTotal, child->GetSize() ); | |
26022721 | 114 | |
a71aeb24 VZ |
115 | m_sizer->Clear(); |
116 | m_sizer->Add(child, wxSizerFlags()); | |
117 | m_sizer->SetItemMinSize(child, sizeTotal*2); | |
118 | m_win->Layout(); | |
119 | CPPUNIT_ASSERT_EQUAL( sizeTotal, child->GetSize() ); | |
120 | ||
26022721 VZ |
121 | m_sizer->Clear(); |
122 | m_sizer->Add(child, wxSizerFlags().Expand()); | |
123 | m_sizer->SetItemMinSize(child, sizeTotal*2); | |
124 | m_win->Layout(); | |
125 | CPPUNIT_ASSERT_EQUAL( sizeTotal, child->GetSize() ); | |
869c7a94 VZ |
126 | } |
127 | ||
729f53d4 VZ |
128 | void BoxSizerTestCase::Size3() |
129 | { | |
130 | // check that various combinations of minimal sizes and proportions work as | |
131 | // expected for different window sizes | |
132 | static const struct LayoutTestData | |
133 | { | |
134 | // proportions of the elements | |
135 | int prop[3]; | |
136 | ||
137 | // minimal sizes of the elements in the sizer direction | |
138 | int minsize[3]; | |
139 | ||
140 | // total size and the expected sizes of the elements | |
141 | int x, | |
142 | sizes[3]; | |
143 | ||
144 | // if true, don't try the permutations of our test data | |
145 | bool dontPermute; | |
146 | ||
147 | ||
148 | // Add the given window to the sizer with the corresponding parameters | |
149 | void AddToSizer(wxSizer *sizer, wxWindow *win, int n) const | |
150 | { | |
151 | sizer->Add(win, wxSizerFlags(prop[n])); | |
152 | sizer->SetItemMinSize(win, wxSize(minsize[n], -1)); | |
153 | } | |
154 | ||
155 | } layoutTestData[] = | |
156 | { | |
157 | // some really simple cases (no need to permute those, they're | |
158 | // symmetrical anyhow) | |
159 | { { 1, 1, 1, }, { 50, 50, 50, }, 150, { 50, 50, 50, }, true }, | |
160 | { { 2, 2, 2, }, { 50, 50, 50, }, 600, { 200, 200, 200, }, true }, | |
161 | ||
162 | // items with different proportions and min sizes when there is enough | |
163 | // space to lay them out | |
164 | { { 1, 2, 3, }, { 0, 0, 0, }, 600, { 100, 200, 300, } }, | |
165 | { { 1, 2, 3, }, { 100, 100, 100, }, 600, { 100, 200, 300, } }, | |
166 | { { 1, 2, 3, }, { 100, 50, 50, }, 600, { 100, 200, 300, } }, | |
167 | { { 0, 1, 1, }, { 200, 100, 100, }, 600, { 200, 200, 200, } }, | |
168 | { { 0, 1, 2, }, { 300, 100, 100, }, 600, { 300, 100, 200, } }, | |
169 | { { 0, 1, 1, }, { 100, 50, 50, }, 300, { 100, 100, 100, } }, | |
170 | { { 0, 1, 2, }, { 100, 50, 50, }, 400, { 100, 100, 200, } }, | |
171 | ||
172 | // cases when there is not enough space to lay out the items correctly | |
173 | // while still respecting their min sizes | |
174 | { { 0, 1, 1, }, { 100, 150, 50, }, 300, { 100, 150, 50, } }, | |
175 | { { 1, 2, 3, }, { 100, 100, 100, }, 300, { 100, 100, 100, } }, | |
176 | { { 1, 2, 3, }, { 100, 50, 50, }, 300, { 100, 80, 120, } }, | |
177 | { { 1, 2, 3, }, { 100, 10, 10, }, 150, { 100, 20, 30, } }, | |
178 | ||
179 | // cases when there is not enough space even for the min sizes (don't | |
180 | // permute in these cases as the layout does depend on the item order | |
181 | // because the first ones have priority) | |
182 | { { 1, 2, 3, }, { 100, 50, 50, }, 150, { 100, 50, 0, }, true }, | |
183 | { { 1, 2, 3, }, { 100, 100, 100, }, 200, { 100, 100, 0, }, true }, | |
184 | { { 1, 2, 3, }, { 100, 100, 100, }, 150, { 100, 50, 0, }, true }, | |
185 | { { 1, 2, 3, }, { 100, 100, 100, }, 50, { 50, 0, 0, }, true }, | |
186 | { { 1, 2, 3, }, { 100, 100, 100, }, 0, { 0, 0, 0, }, true }, | |
187 | }; | |
188 | ||
189 | wxWindow *child[3]; | |
190 | child[0] = new wxWindow(m_win, wxID_ANY); | |
191 | child[1] = new wxWindow(m_win, wxID_ANY); | |
192 | child[2] = new wxWindow(m_win, wxID_ANY); | |
193 | ||
729f53d4 VZ |
194 | for ( unsigned i = 0; i < WXSIZEOF(layoutTestData); i++ ) |
195 | { | |
196 | LayoutTestData ltd = layoutTestData[i]; | |
197 | ||
198 | // the results shouldn't depend on the order of items except in the | |
199 | // case when there is not enough space for even the fixed width items | |
200 | // (in which case the first ones might get enough of it but not the | |
201 | // last ones) so test a couple of permutations of test data unless | |
202 | // specifically disabled for this test case | |
203 | for ( unsigned p = 0; p < 3; p++) | |
204 | { | |
205 | switch ( p ) | |
206 | { | |
207 | case 0: | |
208 | // nothing to do, use original data | |
209 | break; | |
210 | ||
211 | case 1: | |
212 | // exchange first and last elements | |
213 | wxSwap(ltd.prop[0], ltd.prop[2]); | |
214 | wxSwap(ltd.minsize[0], ltd.minsize[2]); | |
215 | wxSwap(ltd.sizes[0], ltd.sizes[2]); | |
216 | break; | |
217 | ||
218 | case 2: | |
219 | // exchange the original third and second elements | |
220 | wxSwap(ltd.prop[0], ltd.prop[1]); | |
221 | wxSwap(ltd.minsize[0], ltd.minsize[1]); | |
222 | wxSwap(ltd.sizes[0], ltd.sizes[1]); | |
223 | break; | |
224 | } | |
225 | ||
226 | m_sizer->Clear(); | |
be8332eb VZ |
227 | |
228 | unsigned j; | |
729f53d4 VZ |
229 | for ( j = 0; j < WXSIZEOF(child); j++ ) |
230 | ltd.AddToSizer(m_sizer, child[j], j); | |
231 | ||
232 | m_win->SetClientSize(ltd.x, -1); | |
233 | m_win->Layout(); | |
234 | ||
235 | for ( j = 0; j < WXSIZEOF(child); j++ ) | |
236 | { | |
237 | WX_ASSERT_EQUAL_MESSAGE | |
238 | ( | |
239 | ( | |
df67b58b | 240 | "test %lu, permutation #%lu: wrong size for child #%d " |
729f53d4 VZ |
241 | "for total size %d", |
242 | static_cast<unsigned long>(i), | |
243 | static_cast<unsigned long>(p), | |
244 | j, | |
245 | ltd.x | |
246 | ), | |
247 | ltd.sizes[j], child[j]->GetSize().x | |
248 | ); | |
249 | } | |
250 | ||
251 | // don't try other permutations if explicitly disabled | |
252 | if ( ltd.dontPermute ) | |
253 | break; | |
254 | } | |
255 | } | |
256 | } | |
f27d62bf VZ |
257 | |
258 | void BoxSizerTestCase::CalcMin() | |
259 | { | |
260 | static const unsigned NUM_TEST_ITEM = 3; | |
261 | ||
262 | static const struct CalcMinTestData | |
263 | { | |
264 | // proportions of the elements, if one of them is -1 it means to not | |
265 | // use this window at all in this test | |
266 | int prop[NUM_TEST_ITEM]; | |
267 | ||
268 | // minimal sizes of the elements in the sizer direction | |
269 | int minsize[NUM_TEST_ITEM]; | |
270 | ||
271 | // the expected minimal sizer size | |
272 | int total; | |
273 | } calcMinTestData[] = | |
274 | { | |
275 | { { 1, 1, -1 }, { 30, 50, 0 }, 100 }, | |
276 | { { 1, 1, 0 }, { 30, 50, 20 }, 120 }, | |
277 | { { 10, 10, -1 }, { 30, 50, 0 }, 100 }, | |
278 | { { 1, 2, 2 }, { 50, 50, 80 }, 250 }, | |
279 | { { 1, 2, 2 }, { 100, 50, 80 }, 500 }, | |
280 | }; | |
281 | ||
282 | unsigned n; | |
283 | wxWindow *child[NUM_TEST_ITEM]; | |
284 | for ( n = 0; n < NUM_TEST_ITEM; n++ ) | |
285 | child[n] = new wxWindow(m_win, wxID_ANY); | |
286 | ||
287 | for ( unsigned i = 0; i < WXSIZEOF(calcMinTestData); i++ ) | |
288 | { | |
289 | m_sizer->Clear(); | |
290 | ||
291 | const CalcMinTestData& cmtd = calcMinTestData[i]; | |
292 | for ( n = 0; n < NUM_TEST_ITEM; n++ ) | |
293 | { | |
294 | if ( cmtd.prop[n] != -1 ) | |
295 | { | |
296 | child[n]->SetInitialSize(wxSize(cmtd.minsize[n], -1)); | |
297 | m_sizer->Add(child[n], wxSizerFlags(cmtd.prop[n])); | |
298 | } | |
299 | } | |
300 | ||
301 | WX_ASSERT_EQUAL_MESSAGE | |
302 | ( | |
303 | ("In test #%u", i), | |
304 | cmtd.total, m_sizer->CalcMin().x | |
305 | ); | |
306 | } | |
307 | } | |
93b87dd9 VZ |
308 | |
309 | void BoxSizerTestCase::BestSizeRespectsMaxSize() | |
310 | { | |
311 | m_sizer->Clear(); | |
312 | ||
313 | const int maxWidth = 100; | |
314 | ||
315 | wxSizer* sizer = new wxBoxSizer(wxVERTICAL); | |
316 | wxListBox* listbox = new wxListBox(m_win, wxID_ANY); | |
317 | listbox->Append("some very very very very very very very very very very very long string"); | |
318 | listbox->SetMaxSize(wxSize(maxWidth, -1)); | |
319 | sizer->Add(listbox); | |
320 | ||
321 | m_sizer->Add(sizer); | |
322 | m_win->Layout(); | |
323 | ||
324 | CPPUNIT_ASSERT_EQUAL(maxWidth, listbox->GetSize().GetWidth()); | |
325 | } | |
326 | ||
327 | void BoxSizerTestCase::RecalcSizesRespectsMaxSize1() | |
328 | { | |
329 | m_sizer->Clear(); | |
330 | ||
331 | const int maxWidth = 100; | |
332 | ||
333 | m_win->SetClientSize(300, 300); | |
334 | ||
335 | wxSizer* sizer1 = new wxBoxSizer(wxVERTICAL); | |
336 | m_sizer->Add(sizer1); | |
337 | ||
338 | wxListBox* listbox1 = new wxListBox(m_win, wxID_ANY); | |
339 | listbox1->Append("some very very very very very very very very very very very long string"); | |
340 | sizer1->Add(listbox1); | |
341 | ||
342 | wxSizer* sizer2 = new wxBoxSizer(wxHORIZONTAL); | |
343 | sizer1->Add(sizer2, wxSizerFlags().Expand()); | |
344 | ||
345 | wxListBox* listbox2 = new wxListBox(m_win, wxID_ANY); | |
346 | listbox2->Append("some string"); | |
347 | listbox2->SetMaxSize(wxSize(100, -1)); | |
348 | sizer2->Add(listbox2, wxSizerFlags().Proportion(1)); | |
349 | ||
350 | m_win->Layout(); | |
351 | ||
352 | CPPUNIT_ASSERT_EQUAL(maxWidth, listbox2->GetSize().GetWidth()); | |
353 | } | |
354 | ||
355 | void BoxSizerTestCase::RecalcSizesRespectsMaxSize2() | |
356 | { | |
357 | m_sizer->Clear(); | |
358 | ||
359 | m_win->SetClientSize(300, 300); | |
360 | ||
361 | wxSizer* sizer1 = new wxBoxSizer(wxVERTICAL); | |
362 | m_sizer->Add(sizer1, wxSizerFlags().Expand()); | |
363 | ||
364 | wxWindow* child1 = new wxWindow(m_win, wxID_ANY); | |
365 | sizer1->Add(child1, wxSizerFlags().Proportion(1)); | |
366 | ||
367 | wxWindow* child2 = new wxWindow(m_win, wxID_ANY); | |
368 | child2->SetMaxSize(wxSize(-1, 50)); | |
369 | sizer1->Add(child2, wxSizerFlags().Proportion(1)); | |
370 | ||
371 | wxWindow* child3 = new wxWindow(m_win, wxID_ANY); | |
372 | sizer1->Add(child3, wxSizerFlags().Proportion(1)); | |
373 | ||
374 | m_win->Layout(); | |
375 | ||
376 | CPPUNIT_ASSERT_EQUAL(125, child1->GetSize().GetHeight()); | |
377 | CPPUNIT_ASSERT_EQUAL(50, child2->GetSize().GetHeight()); | |
378 | CPPUNIT_ASSERT_EQUAL(125, child3->GetSize().GetHeight()); | |
379 | } |