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https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-16 05:13:58 -07:00
8ccba254fe
The test loading the `mod` mod uses the bold variant that is present in `_test.minimal`. Removing the need for the `mod` mod allows packagers to build and run tests from the `unix-build` tarball without needing the `unix-data` one. The setup for this test suite defines the italic variant of the sans serif font, but this variant is not present in `_test.minimal` and is not used in any test, so remove that as well.
391 lines
14 KiB
C++
391 lines
14 KiB
C++
/* Copyright (C) 2025 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "lib/self_test.h"
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#include "graphics/FontMetrics.h"
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#include "gui/CGUI.h"
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#include "gui/CGUIText.h"
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#include "gui/SettingTypes/CGUIString.h"
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#include "gui/SettingTypes/EAlign.h"
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#include "i18n/L10n.h"
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#include "lib/file/file_system.h"
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#include "lib/file/vfs/vfs.h"
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#include "lib/path.h"
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#include "maths/Size2D.h"
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#include "maths/Vector2D.h"
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#include "ps/CLogger.h"
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#include "ps/CStr.h"
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#include "ps/CStrIntern.h"
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#include "ps/ConfigDB.h"
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#include "ps/Filesystem.h"
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#include "ps/ProfileViewer.h"
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#include "ps/VideoMode.h"
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#include "ps/XML/Xeromyces.h"
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#include "renderer/Renderer.h"
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#include "scriptinterface/ScriptInterface.h"
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#include <algorithm>
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#include <array>
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#include <memory>
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#include <optional>
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#include <string>
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#include <vector>
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class TestCGUIText : public CxxTest::TestSuite
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{
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std::optional<CXeromycesEngine> m_XeromycesEngine;
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CProfileViewer* m_Viewer = nullptr;
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CRenderer* m_Renderer = nullptr;
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std::unique_ptr<L10n> m_L10n;
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public:
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void setUp()
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{
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g_VFS = CreateVfs();
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TS_ASSERT_OK(g_VFS->Mount(L"", DataDir() / "mods" / "_test.minimal" / "", VFS_MOUNT_MUST_EXIST));
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TS_ASSERT_OK(g_VFS->Mount(L"cache", DataDir() / "_testcache" / "", 0, VFS_MAX_PRIORITY));
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m_XeromycesEngine.emplace();
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// The renderer spews messages.
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TestLogger logger;
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// We need to initialise the renderer to initialise the font manager.
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// TODO: decouple this.
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CConfigDB::Initialise();
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CConfigDB::Instance()->SetValueString(CFG_SYSTEM, "rendererbackend", "dummy");
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CConfigDB::Instance()->SetValueString(CFG_SYSTEM, "fonts.default", "LinBiolinum_Rah.ttf");
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CConfigDB::Instance()->SetValueString(CFG_SYSTEM, "fonts.sans.regular", "LinBiolinum_Rah.ttf");
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CConfigDB::Instance()->SetValueString(CFG_SYSTEM, "fonts.sans.bold", "LinBiolinum_RBah.ttf");
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CConfigDB::Instance()->SetValueString(CFG_SYSTEM, "fonts.mono.regular", "DejaVuSansMono.ttf");
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g_VideoMode.InitNonSDL();
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g_VideoMode.CreateBackendDevice(false);
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m_Viewer = new CProfileViewer;
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m_Renderer = new CRenderer(g_VideoMode.GetBackendDevice());
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m_L10n = std::make_unique<L10n>();
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}
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void tearDown()
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{
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m_L10n.reset();
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delete m_Renderer;
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delete m_Viewer;
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g_VideoMode.Shutdown();
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CConfigDB::Shutdown();
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m_XeromycesEngine.reset();
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g_VFS.reset();
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DeleteDirectory(DataDir() / "_testcache");
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}
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void test_empty()
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{
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CGUI gui{*g_ScriptContext};
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CGUIText empty;
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}
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void test_wrapping()
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{
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CGUI gui{*g_ScriptContext};
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const CStrW font{L"mono-10"};
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CFontMetrics fontMetrics{CStrIntern(font.ToUTF8())};
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const float lineHeight{fontMetrics.GetCapHeight()};
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const float lineSpacing{fontMetrics.GetHeight()};
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CGUIString string;
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CGUIText text;
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float width = 0.f;
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float renderedWidth = 0.f;
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float padding = 0.f;
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EAlign align = EAlign::LEFT;
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// Thing to note: the space before the newline should collapse in right-alignment.
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string.SetValue(L"Some long text that will wrap-around. \n New line.");
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text = CGUIText(gui, string, font, width, padding, align, nullptr);
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// Width 0 means no wrapping, so we should be getting one render call & one line.
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// TODO: is it wanted that \n doesn't wrap in that case?
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// We have 11 calls: the 9 words (wrap-around is split in two), the space after the newline, and the newline itself.
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TS_ASSERT_EQUALS(text.GetTextCalls().size(), 11);
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TS_ASSERT_EQUALS(text.GetSize().Height, lineHeight);
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width = 100.f;
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padding = 2.0f;
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align = EAlign::LEFT;
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text = CGUIText(gui, string, font, width, padding, align, nullptr);
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renderedWidth = text.GetSize().Width;
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// We have 10 calls: the 9 words (wrap-around is split in two), the space after the newline.
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TS_ASSERT_EQUALS(text.GetTextCalls().size(), 10);
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TS_ASSERT_LESS_THAN(text.GetSize().Width, width);
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TS_ASSERT_EQUALS(text.GetSize().Height, padding * 2 + lineHeight + lineSpacing * 3);
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align = EAlign::RIGHT;
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text = CGUIText(gui, string, font, width, padding, align, nullptr);
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TS_ASSERT_EQUALS(text.GetTextCalls().size(), 10);
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TS_ASSERT_EQUALS(text.GetSize().Width, renderedWidth); // Should be the same width as the left-case.
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TS_ASSERT_EQUALS(text.GetSize().Height, padding * 2 + lineHeight + lineSpacing * 3);
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width = 400.f;
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padding = 3.0f;
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align = EAlign::LEFT;
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text = CGUIText(gui, string, font, width, padding, align, nullptr);
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TS_ASSERT_EQUALS(text.GetTextCalls().size(), 10);
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TS_ASSERT_LESS_THAN(text.GetSize().Width, width);
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TS_ASSERT_EQUALS(text.GetSize().Height, padding * 2 + lineHeight + lineSpacing);
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width = 400.f;
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padding = 5.0f;
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align = EAlign::CENTER;
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text = CGUIText(gui, string, font, width, padding, align, nullptr);
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renderedWidth = text.GetSize().Width;
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TS_ASSERT_LESS_THAN(text.GetSize().Width, width);
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TS_ASSERT_EQUALS(text.GetSize().Height, padding * 2 + lineHeight + lineSpacing);
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align = EAlign::RIGHT;
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text = CGUIText(gui, string, font, width, padding, align, nullptr);
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TS_ASSERT_EQUALS(text.GetSize().Width, renderedWidth); // Should be the same width as the center-case.
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TS_ASSERT_EQUALS(text.GetSize().Height, padding * 2 + lineHeight + lineSpacing);
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align = EAlign::LEFT;
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text = CGUIText(gui, string, font, width, padding, align, nullptr);
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TS_ASSERT_EQUALS(text.GetSize().Width, renderedWidth); // Should be the same width as the center-case.
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TS_ASSERT_EQUALS(text.GetSize().Height, padding * 2 + lineHeight + lineSpacing);
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width = 400.f;
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padding = 100.0f;
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align = EAlign::LEFT;
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text = CGUIText(gui, string, font, width, padding, align, nullptr);
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renderedWidth = text.GetSize().Width;
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TS_ASSERT_LESS_THAN(text.GetSize().Width, width);
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TS_ASSERT_EQUALS(text.GetSize().Height, padding * 2 + lineHeight + lineSpacing * 2);
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align = EAlign::RIGHT;
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text = CGUIText(gui, string, font, width, padding, align, nullptr);
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TS_ASSERT_EQUALS(text.GetSize().Width, renderedWidth); // Should be the same width as the left-case.
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TS_ASSERT_EQUALS(text.GetSize().Height, padding * 2 + lineHeight + lineSpacing * 2);
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}
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void test_layout_wrapping_center()
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{
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// The short word should be layouted the same as when there is no
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// second word, because it's the only one word in the first line until
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// the width is enough to fit both. So we need to check that for
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// increasing width X positions of both words are also increasing until
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// they fit into a single line.
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//
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// Width is too small for both:
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// +--------------------+
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// | Shortword |
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// | (Veryverylongword) |
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// +--------------------+
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//
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// Right before the big enough width:
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// +---------------------------+
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// | Shortword |
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// | (Veryverylongword) |
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// +---------------------------+
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//
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// Width is enough to fit both:
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// +------------------------------+
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// | Shortword (Veryverylongword) |
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// +------------------------------+
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//
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CGUI gui{*g_ScriptContext};
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const CStrW firstWord = L"Shortword";
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const CStrW secondWord = L"(Veryverylongword)";
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const CStrW text = firstWord + L" " + secondWord;
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CGUIString string;
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string.SetValue(text);
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const CStrW font{L"mono-10"};
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CFontMetrics fontMetrics{CStrIntern(font.ToUTF8())};
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float firstWordWidth{0};
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float firstWordHeight{0};
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fontMetrics.CalculateStringSize(firstWord.c_str(), firstWordWidth, firstWordHeight);
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TS_ASSERT(firstWordWidth > 0);
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float secondWordWidth{0};
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float secondWordHeight{0};
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fontMetrics.CalculateStringSize(secondWord.c_str(), secondWordWidth, secondWordHeight);
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TS_ASSERT(secondWordWidth > 0);
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TS_ASSERT(firstWordWidth < secondWordWidth);
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const float spaceWidth = fontMetrics.GetCharacterWidth(L' ');
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const float lineHeight{fontMetrics.GetCapHeight()};
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const float lineSpacing{fontMetrics.GetHeight()};
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auto layoutText = [&gui, &string, &font, lineHeight, firstWordWidth](const float width)
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{
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const float padding = 0.0f;
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const CGUIText text(gui, string, font, width, padding, EAlign::CENTER, nullptr);
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std::array<CVector2D, 2> positions;
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TS_ASSERT_EQUALS(text.GetTextCalls().size(), positions.size());
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// If the second word is on the next line then the first word should be
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// centered alone.
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if (text.GetTextCalls()[0].m_Pos.Y + lineHeight <= text.GetTextCalls()[1].m_Pos.Y)
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{
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const float expectedX = (width - firstWordWidth) / 2.0f;
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TS_ASSERT_EQUALS(text.GetTextCalls()[0].m_Pos.X, expectedX);
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}
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std::transform(
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text.GetTextCalls().begin(), text.GetTextCalls().end(), positions.begin(),
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[](const CGUIText::STextCall& textCall) { return textCall.m_Pos; });
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return positions;
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};
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const float testPadding = 2;
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const float beginWidth = firstWordWidth - testPadding;
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const float endWidth = firstWordWidth + spaceWidth + secondWordWidth + testPadding;
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std::array<CVector2D, 2> previousPositions = layoutText(beginWidth);
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TS_ASSERT_EQUALS(std::get<0>(previousPositions).Y, lineHeight);
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TS_ASSERT_EQUALS(std::get<1>(previousPositions).Y, lineHeight + lineSpacing);
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bool firstFit = false;
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for (float width = beginWidth; width <= endWidth; width += 1.0f)
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{
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std::array<CVector2D, 2> positions = layoutText(width);
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TS_ASSERT_EQUALS(std::get<0>(positions).Y, lineHeight);
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if (std::get<0>(positions).X >= std::get<0>(previousPositions).X)
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{
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if (firstFit)
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{
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TS_ASSERT_EQUALS(std::get<0>(positions).Y, std::get<1>(positions).Y);
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}
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else
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{
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TS_ASSERT_EQUALS(std::get<1>(positions).Y, lineHeight + lineSpacing);
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}
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TS_ASSERT(std::get<1>(positions).X >= std::get<1>(previousPositions).X);
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}
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else
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{
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TS_ASSERT(!firstFit);
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firstFit = true;
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TS_ASSERT_EQUALS(std::get<0>(positions).Y, std::get<1>(positions).Y);
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TS_ASSERT(std::get<0>(positions).X < std::get<1>(positions).X);
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}
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previousPositions = positions;
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}
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TS_ASSERT(firstFit);
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}
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void test_overflow()
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{
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CGUI gui{*g_ScriptContext};
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const CStrW font{L"mono-10"};
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CFontMetrics fontMetrics{CStrIntern(font.ToUTF8())};
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const float lineHeight{fontMetrics.GetCapHeight()};
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const float lineSpacing{fontMetrics.GetHeight()};
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float renderedWidth = 0.f;
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const float width = 200.f;
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const float padding = 20.f;
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CGUIString string;
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CGUIText text;
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string.SetValue(L"wordthatisverylonganddefinitelywontfitinaline and other words");
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text = CGUIText(gui, string, font, width, padding, EAlign::LEFT, nullptr);
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renderedWidth = text.GetSize().Width;
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TS_ASSERT_EQUALS(text.GetSize().Height, lineHeight + lineSpacing * 1 + padding * 2);
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text = CGUIText(gui, string, font, width, padding, EAlign::CENTER, nullptr);
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TS_ASSERT_EQUALS(renderedWidth, text.GetSize().Width);
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TS_ASSERT_EQUALS(text.GetSize().Height, lineHeight + lineSpacing * 1 + padding * 2);
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text = CGUIText(gui, string, font, width, padding, EAlign::RIGHT, nullptr);
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TS_ASSERT_EQUALS(renderedWidth, text.GetSize().Width);
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TS_ASSERT_EQUALS(text.GetSize().Height, lineHeight + lineSpacing * 1 + padding * 2);
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string.SetValue(L"other words and wordthatisverylonganddefinitelywontfitinaline");
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text = CGUIText(gui, string, font, width, padding, EAlign::LEFT, nullptr);
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renderedWidth = text.GetSize().Width;
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TS_ASSERT_EQUALS(text.GetSize().Height, lineHeight + lineSpacing * 1 + padding * 2);
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text = CGUIText(gui, string, font, width, padding, EAlign::CENTER, nullptr);
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TS_ASSERT_EQUALS(renderedWidth, text.GetSize().Width);
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TS_ASSERT_EQUALS(text.GetSize().Height, lineHeight + lineSpacing * 1 + padding * 2);
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text = CGUIText(gui, string, font, width, padding, EAlign::RIGHT, nullptr);
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TS_ASSERT_EQUALS(renderedWidth, text.GetSize().Width);
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TS_ASSERT_EQUALS(text.GetSize().Height, lineHeight + lineSpacing * 1 + padding * 2);
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string.SetValue(L"wordthatisverylonganddefinitelywontfitinaline");
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text = CGUIText(gui, string, font, width, padding, EAlign::LEFT, nullptr);
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renderedWidth = text.GetSize().Width;
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TS_ASSERT_EQUALS(text.GetSize().Height, lineHeight + padding * 2);
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text = CGUIText(gui, string, font, width, padding, EAlign::CENTER, nullptr);
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TS_ASSERT_EQUALS(renderedWidth, text.GetSize().Width);
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TS_ASSERT_EQUALS(text.GetSize().Height, lineHeight + padding * 2);
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text = CGUIText(gui, string, font, width, padding, EAlign::RIGHT, nullptr);
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TS_ASSERT_EQUALS(renderedWidth, text.GetSize().Width);
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TS_ASSERT_EQUALS(text.GetSize().Height, lineHeight + padding * 2);
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}
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void test_regression_rP26522()
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{
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CGUI gui{*g_ScriptContext};
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const CStrW font{L"sans-bold-13"};
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CFontMetrics fontMetrics{CStrIntern(font.ToUTF8())};
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const float lineHeight{fontMetrics.GetCapHeight()};
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const float lineSpacing{fontMetrics.GetHeight()};
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CGUIString string;
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CGUIText text;
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// rP26522 introduced a bug that triggered in rare cases with word-wrapping.
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string.SetValue(L"90–120 min");
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text = CGUIText(gui, string, font, 53, 8.f, EAlign::LEFT, nullptr);
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TS_ASSERT_EQUALS(text.GetTextCalls().size(), 2);
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TS_ASSERT_EQUALS(text.GetSize().Height, lineHeight + lineSpacing + 8 * 2);
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}
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void test_multiple_blank_spaces()
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{
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CGUI gui{*g_ScriptContext};
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const CStrW font{L"mono-10"};
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CFontMetrics fontMetrics{CStrIntern(font.ToUTF8())};
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const float lineHeight{fontMetrics.GetCapHeight()};
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const float lineSpacing{fontMetrics.GetHeight()};
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CGUIString string;
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CGUIText text;
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float width = 100.f;
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float renderedWidth = 0.f;
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float padding = 0.f;
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EAlign align = EAlign::LEFT;
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string.SetValue(L" word another \n spaces \n \n word ");
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text = CGUIText(gui, string, font, width, padding, align, nullptr);
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// Blank spaces are treated as a word.
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TS_ASSERT_EQUALS(text.GetTextCalls().size(), 26);
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TS_ASSERT_EQUALS(text.GetSize().Height, lineHeight + lineSpacing * 4);
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// The longest line in text is " spaces " which amounts to 13 characters with a character width of 6.
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TS_ASSERT_EQUALS(text.GetSize().Width, 78.f);
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renderedWidth = text.GetSize().Width;
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align = EAlign::RIGHT;
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text = CGUIText(gui, string, font, width, padding, align, nullptr);
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TS_ASSERT_EQUALS(text.GetSize().Width, renderedWidth);
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}
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};
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