mirror of
https://github.com/diasurgical/DevilutionX.git
synced 2026-10-12 02:13:06 +00:00
Gleb Mazovetskiy
d6b7949dab
Built-in font size decreased by 121,587 bytes (2,287,332 -> 2,165,745). Fixes #6361
799 lines
24 KiB
C++
799 lines
24 KiB
C++
/**
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* @file text_render.cpp
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*
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* Text rendering.
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*/
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#include "text_render.hpp"
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#include <array>
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#include <cstddef>
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#include <cstdint>
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#include <unordered_map>
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#include <utility>
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#include <fmt/core.h>
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#include "DiabloUI/diabloui.h"
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#include "DiabloUI/ui_item.h"
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#include "engine.h"
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#include "engine/load_cel.hpp"
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#include "engine/load_clx.hpp"
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#include "engine/load_file.hpp"
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#include "engine/load_pcx.hpp"
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#include "engine/palette.h"
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#include "engine/point.hpp"
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#include "engine/render/clx_render.hpp"
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#include "utils/display.h"
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#include "utils/language.h"
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#include "utils/sdl_compat.h"
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#include "utils/stdcompat/optional.hpp"
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#include "utils/utf8.hpp"
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namespace devilution {
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OptionalOwnedClxSpriteList pSPentSpn2Cels;
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namespace {
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constexpr char32_t ZWSP = U'\u200B'; // Zero-width space
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std::unordered_map<uint32_t, OptionalOwnedClxSpriteList> Fonts;
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std::array<int, 6> FontSizes = { 12, 24, 30, 42, 46, 22 };
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constexpr std::array<int, 6> LineHeights = { 12, 26, 38, 42, 50, 22 };
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constexpr int SmallFontTallLineHeight = 16;
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std::array<int, 6> BaseLineOffset = { -3, -2, -3, -6, -7, 3 };
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std::array<const char *, 15> ColorTranslations = {
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"fonts\\goldui.trn",
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"fonts\\grayui.trn",
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"fonts\\golduis.trn",
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"fonts\\grayuis.trn",
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nullptr,
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"fonts\\yellow.trn",
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nullptr,
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"fonts\\black.trn",
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"fonts\\white.trn",
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"fonts\\whitegold.trn",
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"fonts\\red.trn",
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"fonts\\blue.trn",
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"fonts\\orange.trn",
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"fonts\\buttonface.trn",
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"fonts\\buttonpushed.trn",
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};
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std::array<std::optional<std::array<uint8_t, 256>>, 15> ColorTranslationsData;
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GameFontTables GetSizeFromFlags(UiFlags flags)
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{
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if (HasAnyOf(flags, UiFlags::FontSize24))
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return GameFont24;
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else if (HasAnyOf(flags, UiFlags::FontSize30))
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return GameFont30;
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else if (HasAnyOf(flags, UiFlags::FontSize42))
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return GameFont42;
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else if (HasAnyOf(flags, UiFlags::FontSize46))
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return GameFont46;
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else if (HasAnyOf(flags, UiFlags::FontSizeDialog))
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return FontSizeDialog;
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return GameFont12;
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}
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text_color GetColorFromFlags(UiFlags flags)
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{
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if (HasAnyOf(flags, UiFlags::ColorWhite))
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return ColorWhite;
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else if (HasAnyOf(flags, UiFlags::ColorBlue))
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return ColorBlue;
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else if (HasAnyOf(flags, UiFlags::ColorOrange))
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return ColorOrange;
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else if (HasAnyOf(flags, UiFlags::ColorRed))
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return ColorRed;
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else if (HasAnyOf(flags, UiFlags::ColorBlack))
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return ColorBlack;
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else if (HasAnyOf(flags, UiFlags::ColorGold))
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return ColorGold;
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else if (HasAnyOf(flags, UiFlags::ColorUiGold))
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return ColorUiGold;
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else if (HasAnyOf(flags, UiFlags::ColorUiSilver))
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return ColorUiSilver;
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else if (HasAnyOf(flags, UiFlags::ColorUiGoldDark))
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return ColorUiGoldDark;
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else if (HasAnyOf(flags, UiFlags::ColorUiSilverDark))
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return ColorUiSilverDark;
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else if (HasAnyOf(flags, UiFlags::ColorDialogWhite))
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return ColorDialogWhite;
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else if (HasAnyOf(flags, UiFlags::ColorYellow))
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return ColorYellow;
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else if (HasAnyOf(flags, UiFlags::ColorButtonface))
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return ColorButtonface;
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else if (HasAnyOf(flags, UiFlags::ColorButtonpushed))
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return ColorButtonpushed;
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return ColorWhitegold;
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}
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uint16_t GetUnicodeRow(char32_t codePoint)
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{
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return static_cast<uint32_t>(codePoint) >> 8;
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}
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bool IsCJK(uint16_t row)
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{
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return row >= 0x30 && row <= 0x9f;
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}
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bool IsHangul(uint16_t row)
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{
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return row >= 0xac && row <= 0xd7;
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}
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bool IsSmallFontTallRow(uint16_t row)
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{
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return IsCJK(row) || IsHangul(row);
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}
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void GetFontPath(GameFontTables size, uint16_t row, string_view ext, char *out)
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{
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*fmt::format_to(out, R"(fonts\{}-{:02x}{})", FontSizes[size], row, ext) = '\0';
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}
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uint32_t GetFontId(GameFontTables size, uint16_t row)
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{
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return (size << 16) | row;
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}
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OptionalClxSpriteList LoadFont(GameFontTables size, text_color color, uint16_t row)
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{
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if (ColorTranslations[color] != nullptr && !ColorTranslationsData[color]) {
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ColorTranslationsData[color].emplace();
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LoadFileInMem(ColorTranslations[color], *ColorTranslationsData[color]);
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}
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const uint32_t fontId = GetFontId(size, row);
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auto hotFont = Fonts.find(fontId);
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if (hotFont != Fonts.end()) {
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return OptionalClxSpriteList(*hotFont->second);
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}
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char path[32];
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GetFontPath(size, row, ".clx", &path[0]);
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OptionalOwnedClxSpriteList &font = Fonts[fontId];
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font = LoadOptionalClx(path);
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if (!font) {
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// Could be an old devilutionx.mpq or fonts.mpq with PCX instead of CLX.
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//
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// We'll show an error elsewhere (in `CheckArchivesUpToDate`) and we need to load
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// the font files to display it.
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char pcxPath[32];
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GetFontPath(size, row, "", &pcxPath[0]);
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font = LoadPcxSpriteList(pcxPath, /*numFramesOrFrameHeight=*/256, /*transparentColor=*/1);
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}
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if (!font) {
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LogError("Error loading font: {}", path);
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}
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return OptionalClxSpriteList(*font);
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}
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class CurrentFont {
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public:
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OptionalClxSpriteList sprite;
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bool load(GameFontTables size, text_color color, char32_t next)
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{
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const uint32_t unicodeRow = GetUnicodeRow(next);
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if (unicodeRow == currentUnicodeRow_ && hasAttemptedLoad_) {
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return true;
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}
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sprite = LoadFont(size, color, unicodeRow);
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hasAttemptedLoad_ = true;
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currentUnicodeRow_ = unicodeRow;
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return sprite;
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}
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void clear()
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{
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hasAttemptedLoad_ = false;
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}
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private:
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bool hasAttemptedLoad_ = false;
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uint32_t currentUnicodeRow_ = 0;
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};
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void DrawFont(const Surface &out, Point position, const ClxSpriteList font, text_color color, int frame, bool outline)
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{
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ClxSprite glyph = font[frame];
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if (outline) {
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ClxDrawOutlineSkipColorZero(out, 0, { position.x, position.y + glyph.height() - 1 }, glyph);
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}
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if (ColorTranslationsData[color]) {
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RenderClxSpriteWithTRN(out, glyph, position, ColorTranslationsData[color]->data());
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} else {
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RenderClxSprite(out, glyph, position);
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}
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}
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bool IsWhitespace(char32_t c)
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{
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return IsAnyOf(c, U' ', U' ', ZWSP);
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}
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bool IsFullWidthPunct(char32_t c)
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{
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return IsAnyOf(c, U'，', U'、', U'。', U'？', U'！');
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}
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bool IsBreakAllowed(char32_t codepoint, char32_t nextCodepoint)
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{
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return IsFullWidthPunct(codepoint) && !IsFullWidthPunct(nextCodepoint);
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}
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std::size_t CountNewlines(string_view fmt, const DrawStringFormatArg *args, std::size_t argsLen)
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{
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std::size_t result = std::count(fmt.begin(), fmt.end(), '\n');
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for (std::size_t i = 0; i < argsLen; ++i) {
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if (args[i].GetType() == DrawStringFormatArg::Type::StringView)
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result += std::count(args[i].GetFormatted().begin(), args[i].GetFormatted().end(), '\n');
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}
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return result;
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}
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class FmtArgParser {
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public:
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FmtArgParser(string_view fmt,
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DrawStringFormatArg *args,
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size_t len,
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size_t offset = 0)
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: fmt_(fmt)
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, args_(args)
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, len_(len)
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, next_(offset)
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{
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}
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std::optional<std::size_t> operator()(string_view &rest)
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{
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std::optional<std::size_t> result;
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if (rest[0] != '{')
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return result;
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std::size_t closingBracePos = rest.find('}', 1);
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if (closingBracePos == string_view::npos) {
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LogError("Unclosed format argument: {}", fmt_);
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return result;
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}
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std::size_t fmtLen;
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bool positional;
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if (closingBracePos == 2 && rest[1] >= '0' && rest[1] <= '9') {
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result = rest[1] - '0';
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fmtLen = 3;
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positional = true;
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} else {
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result = next_++;
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fmtLen = closingBracePos + 1;
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positional = false;
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}
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if (!result) {
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LogError("Unsupported format argument: {}", rest);
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} else if (*result >= len_) {
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LogError("Not enough format arguments, {} given for: {}", len_, fmt_);
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result = std::nullopt;
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} else {
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if (!args_[*result].HasFormatted()) {
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const auto fmtStr = positional ? "{}" : fmt::string_view(rest.data(), fmtLen);
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args_[*result].SetFormatted(fmt::format(fmt::runtime(fmtStr), args_[*result].GetIntValue()));
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}
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rest.remove_prefix(fmtLen);
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}
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return result;
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}
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size_t offset() const
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{
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return next_;
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}
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private:
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string_view fmt_;
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DrawStringFormatArg *args_;
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std::size_t len_;
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std::size_t next_;
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};
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bool ContainsSmallFontTallCodepoints(string_view text)
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{
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while (!text.empty()) {
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const char32_t next = ConsumeFirstUtf8CodePoint(&text);
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if (next == Utf8DecodeError)
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break;
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if (next == ZWSP)
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continue;
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if (IsSmallFontTallRow(GetUnicodeRow(next)))
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return true;
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}
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return false;
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}
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int GetLineHeight(string_view fmt, DrawStringFormatArg *args, std::size_t argsLen, GameFontTables fontIndex)
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{
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constexpr std::array<int, 6> LineHeights = { 12, 26, 38, 42, 50, 22 };
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if (fontIndex == GameFont12 && IsSmallFontTall()) {
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char32_t prev = U'\0';
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char32_t next;
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FmtArgParser fmtArgParser { fmt, args, argsLen };
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string_view rest = fmt;
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while (!rest.empty()) {
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if ((prev == U'{' || prev == U'}') && static_cast<char>(prev) == rest[0]) {
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rest.remove_prefix(1);
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continue;
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}
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const std::optional<std::size_t> fmtArgPos = fmtArgParser(rest);
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if (fmtArgPos) {
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if (ContainsSmallFontTallCodepoints(args[*fmtArgPos].GetFormatted()))
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return SmallFontTallLineHeight;
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prev = U'\0';
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continue;
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}
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next = ConsumeFirstUtf8CodePoint(&rest);
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if (next == Utf8DecodeError)
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break;
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if (next == ZWSP) {
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prev = next;
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continue;
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}
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if (IsSmallFontTallRow(GetUnicodeRow(next)))
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return SmallFontTallLineHeight;
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}
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}
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return LineHeights[fontIndex];
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}
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Surface ClipSurface(const Surface &out, Rectangle rect)
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{
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if (rect.size.height == 0) {
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return out.subregion(0, 0, std::min(rect.position.x + rect.size.width, out.w()), out.h());
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}
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return out.subregion(0, 0,
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std::min(rect.position.x + rect.size.width, out.w()),
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std::min(rect.position.y + rect.size.height, out.h()));
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}
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void MaybeWrap(Point &characterPosition, int characterWidth, int rightMargin, int initialX, int lineHeight)
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{
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if (characterPosition.x + characterWidth > rightMargin) {
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characterPosition.x = initialX;
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characterPosition.y += lineHeight;
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}
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}
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int GetLineStartX(UiFlags flags, const Rectangle &rect, int lineWidth)
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{
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if (HasAnyOf(flags, UiFlags::AlignCenter))
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return rect.position.x + (rect.size.width - lineWidth) / 2;
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if (HasAnyOf(flags, UiFlags::AlignRight))
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return rect.position.x + rect.size.width - lineWidth;
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return rect.position.x;
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}
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uint32_t DoDrawString(const Surface &out, string_view text, Rectangle rect, Point &characterPosition,
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int spacing, int lineHeight, int lineWidth, int rightMargin, int bottomMargin,
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UiFlags flags, GameFontTables size, text_color color, bool outline)
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{
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CurrentFont currentFont;
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char32_t next;
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string_view remaining = text;
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size_t cpLen;
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for (; !remaining.empty() && remaining[0] != '\0'
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&& (next = DecodeFirstUtf8CodePoint(remaining, &cpLen)) != Utf8DecodeError;
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remaining.remove_prefix(cpLen)) {
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if (next == ZWSP)
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continue;
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if (!currentFont.load(size, color, next)) {
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next = U'?';
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if (!currentFont.load(size, color, next)) {
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app_fatal("Missing fonts");
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}
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}
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const uint8_t frame = next & 0xFF;
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const uint16_t width = (*currentFont.sprite)[frame].width();
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if (next == U'\n' || characterPosition.x + width > rightMargin) {
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const int nextLineY = characterPosition.y + lineHeight;
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if (nextLineY >= bottomMargin)
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break;
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characterPosition.y = nextLineY;
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if (HasAnyOf(flags, (UiFlags::AlignCenter | UiFlags::AlignRight))) {
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lineWidth = width;
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if (remaining.size() > cpLen)
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lineWidth += spacing + GetLineWidth(remaining.substr(cpLen), size, spacing);
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}
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characterPosition.x = GetLineStartX(flags, rect, lineWidth);
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if (next == U'\n')
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continue;
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}
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DrawFont(out, characterPosition, *currentFont.sprite, color, frame, outline);
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characterPosition.x += width + spacing;
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}
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return remaining.data() - text.data();
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}
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} // namespace
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void LoadSmallSelectionSpinner()
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{
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pSPentSpn2Cels = LoadCel("data\\pentspn2", 12);
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}
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void UnloadFonts()
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{
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Fonts.clear();
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}
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int GetLineWidth(string_view text, GameFontTables size, int spacing, int *charactersInLine)
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{
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int lineWidth = 0;
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CurrentFont currentFont;
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uint32_t codepoints = 0;
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char32_t next;
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while (!text.empty()) {
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next = ConsumeFirstUtf8CodePoint(&text);
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if (next == Utf8DecodeError)
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break;
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if (next == ZWSP)
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continue;
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if (next == U'\n')
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break;
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if (!currentFont.load(size, text_color::ColorDialogWhite, next)) {
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next = U'?';
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if (!currentFont.load(size, text_color::ColorDialogWhite, next)) {
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app_fatal("Missing fonts");
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}
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}
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const uint8_t frame = next & 0xFF;
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lineWidth += (*currentFont.sprite)[frame].width() + spacing;
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++codepoints;
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}
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if (charactersInLine != nullptr)
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*charactersInLine = codepoints;
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return lineWidth != 0 ? (lineWidth - spacing) : 0;
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}
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int GetLineWidth(string_view fmt, DrawStringFormatArg *args, std::size_t argsLen, size_t argsOffset, GameFontTables size, int spacing, int *charactersInLine)
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{
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int lineWidth = 0;
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CurrentFont currentFont;
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uint32_t codepoints = 0;
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char32_t prev = U'\0';
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char32_t next;
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FmtArgParser fmtArgParser { fmt, args, argsLen, argsOffset };
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string_view rest = fmt;
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while (!rest.empty()) {
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if ((prev == U'{' || prev == U'}') && static_cast<char>(prev) == rest[0]) {
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rest.remove_prefix(1);
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continue;
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}
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const std::optional<std::size_t> fmtArgPos = fmtArgParser(rest);
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if (fmtArgPos) {
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int argCodePoints;
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lineWidth += GetLineWidth(args[*fmtArgPos].GetFormatted(), size, spacing, &argCodePoints);
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codepoints += argCodePoints;
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prev = U'\0';
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continue;
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}
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|
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next = ConsumeFirstUtf8CodePoint(&rest);
|
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if (next == Utf8DecodeError)
|
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break;
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if (next == ZWSP) {
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prev = next;
|
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continue;
|
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}
|
||
if (next == U'\n')
|
||
break;
|
||
|
||
if (!currentFont.load(size, text_color::ColorDialogWhite, next)) {
|
||
next = U'?';
|
||
if (!currentFont.load(size, text_color::ColorDialogWhite, next)) {
|
||
app_fatal("Missing fonts");
|
||
}
|
||
}
|
||
|
||
const uint8_t frame = next & 0xFF;
|
||
lineWidth += (*currentFont.sprite)[frame].width() + spacing;
|
||
codepoints++;
|
||
prev = next;
|
||
}
|
||
if (charactersInLine != nullptr)
|
||
*charactersInLine = codepoints;
|
||
|
||
return lineWidth != 0 ? (lineWidth - spacing) : 0;
|
||
}
|
||
|
||
int GetLineHeight(string_view text, GameFontTables fontIndex)
|
||
{
|
||
if (fontIndex == GameFont12 && IsSmallFontTall() && ContainsSmallFontTallCodepoints(text)) {
|
||
return SmallFontTallLineHeight;
|
||
}
|
||
return LineHeights[fontIndex];
|
||
}
|
||
|
||
int AdjustSpacingToFitHorizontally(int &lineWidth, int maxSpacing, int charactersInLine, int availableWidth)
|
||
{
|
||
if (lineWidth <= availableWidth || charactersInLine < 2)
|
||
return maxSpacing;
|
||
|
||
const int overhang = lineWidth - availableWidth;
|
||
const int spacingRedux = (overhang + charactersInLine - 2) / (charactersInLine - 1);
|
||
lineWidth -= spacingRedux * (charactersInLine - 1);
|
||
return maxSpacing - spacingRedux;
|
||
}
|
||
|
||
std::string WordWrapString(string_view text, unsigned width, GameFontTables size, int spacing)
|
||
{
|
||
std::string output;
|
||
if (text.empty() || text[0] == '\0')
|
||
return output;
|
||
|
||
output.reserve(text.size());
|
||
const char *begin = text.data();
|
||
const char *processedEnd = text.data();
|
||
string_view::size_type lastBreakablePos = string_view::npos;
|
||
std::size_t lastBreakableLen;
|
||
bool lastBreakableKeep = false;
|
||
unsigned lineWidth = 0;
|
||
CurrentFont currentFont;
|
||
|
||
char32_t codepoint = U'\0'; // the current codepoint
|
||
char32_t nextCodepoint; // the next codepoint
|
||
std::size_t nextCodepointLen;
|
||
string_view remaining = text;
|
||
nextCodepoint = DecodeFirstUtf8CodePoint(remaining, &nextCodepointLen);
|
||
do {
|
||
codepoint = nextCodepoint;
|
||
const std::size_t codepointLen = nextCodepointLen;
|
||
if (codepoint == Utf8DecodeError)
|
||
break;
|
||
remaining.remove_prefix(codepointLen);
|
||
nextCodepoint = !remaining.empty() ? DecodeFirstUtf8CodePoint(remaining, &nextCodepointLen) : U'\0';
|
||
|
||
if (codepoint == U'\n') { // Existing line break, scan next line
|
||
lastBreakablePos = string_view::npos;
|
||
lineWidth = 0;
|
||
output.append(processedEnd, remaining.data());
|
||
processedEnd = remaining.data();
|
||
continue;
|
||
}
|
||
|
||
if (codepoint != ZWSP) {
|
||
const uint8_t frame = codepoint & 0xFF;
|
||
if (!currentFont.load(size, text_color::ColorDialogWhite, codepoint)) {
|
||
codepoint = U'?';
|
||
if (!currentFont.load(size, text_color::ColorDialogWhite, codepoint)) {
|
||
app_fatal("Missing fonts");
|
||
}
|
||
}
|
||
|
||
lineWidth += (*currentFont.sprite)[frame].width() + spacing;
|
||
}
|
||
|
||
const bool isWhitespace = IsWhitespace(codepoint);
|
||
if (isWhitespace || IsBreakAllowed(codepoint, nextCodepoint)) {
|
||
lastBreakablePos = remaining.data() - begin - codepointLen;
|
||
lastBreakableLen = codepointLen;
|
||
lastBreakableKeep = !isWhitespace;
|
||
continue;
|
||
}
|
||
|
||
if (lineWidth - spacing <= width) {
|
||
continue; // String is still within the limit, continue to the next symbol
|
||
}
|
||
|
||
if (lastBreakablePos == string_view::npos) { // Single word longer than width
|
||
continue;
|
||
}
|
||
|
||
// Break line and continue to next line
|
||
const char *end = &text[lastBreakablePos];
|
||
if (lastBreakableKeep) {
|
||
end += lastBreakableLen;
|
||
}
|
||
output.append(processedEnd, end);
|
||
output += '\n';
|
||
|
||
// Restart from the beginning of the new line.
|
||
remaining = text.substr(lastBreakablePos + lastBreakableLen);
|
||
processedEnd = remaining.data();
|
||
lastBreakablePos = string_view::npos;
|
||
lineWidth = 0;
|
||
nextCodepoint = !remaining.empty() ? DecodeFirstUtf8CodePoint(remaining, &nextCodepointLen) : U'\0';
|
||
} while (!remaining.empty() && remaining[0] != '\0');
|
||
output.append(processedEnd, remaining.data());
|
||
return output;
|
||
}
|
||
|
||
/**
|
||
* @todo replace Rectangle with cropped Surface
|
||
*/
|
||
uint32_t DrawString(const Surface &out, string_view text, const Rectangle &rect, UiFlags flags, int spacing, int lineHeight)
|
||
{
|
||
GameFontTables size = GetSizeFromFlags(flags);
|
||
text_color color = GetColorFromFlags(flags);
|
||
|
||
int charactersInLine = 0;
|
||
int lineWidth = 0;
|
||
if (HasAnyOf(flags, (UiFlags::AlignCenter | UiFlags::AlignRight | UiFlags::KerningFitSpacing)))
|
||
lineWidth = GetLineWidth(text, size, spacing, &charactersInLine);
|
||
|
||
int maxSpacing = spacing;
|
||
if (HasAnyOf(flags, UiFlags::KerningFitSpacing))
|
||
spacing = AdjustSpacingToFitHorizontally(lineWidth, maxSpacing, charactersInLine, rect.size.width);
|
||
|
||
Point characterPosition { GetLineStartX(flags, rect, lineWidth), rect.position.y };
|
||
const int initialX = characterPosition.x;
|
||
|
||
const int rightMargin = rect.position.x + rect.size.width;
|
||
const int bottomMargin = rect.size.height != 0 ? std::min(rect.position.y + rect.size.height + BaseLineOffset[size], out.h()) : out.h();
|
||
|
||
if (lineHeight == -1)
|
||
lineHeight = GetLineHeight(text, size);
|
||
|
||
if (HasAnyOf(flags, UiFlags::VerticalCenter)) {
|
||
int textHeight = (std::count(text.cbegin(), text.cend(), '\n') + 1) * lineHeight;
|
||
characterPosition.y += std::max(0, (rect.size.height - textHeight) / 2);
|
||
}
|
||
|
||
characterPosition.y += BaseLineOffset[size];
|
||
|
||
const bool outlined = HasAnyOf(flags, UiFlags::Outlined);
|
||
|
||
const Surface clippedOut = ClipSurface(out, rect);
|
||
|
||
const uint32_t bytesDrawn = DoDrawString(clippedOut, text, rect, characterPosition, spacing, lineHeight, lineWidth, rightMargin, bottomMargin, flags, size, color, outlined);
|
||
|
||
if (HasAnyOf(flags, UiFlags::PentaCursor)) {
|
||
const ClxSprite sprite = (*pSPentSpn2Cels)[PentSpn2Spin()];
|
||
MaybeWrap(characterPosition, sprite.width(), rightMargin, initialX, lineHeight);
|
||
ClxDraw(clippedOut, characterPosition + Displacement { 0, lineHeight - BaseLineOffset[size] }, sprite);
|
||
} else if (HasAnyOf(flags, UiFlags::TextCursor) && GetAnimationFrame(2, 500) != 0) {
|
||
MaybeWrap(characterPosition, 2, rightMargin, initialX, lineHeight);
|
||
OptionalClxSpriteList baseFont = LoadFont(size, color, 0);
|
||
if (baseFont)
|
||
DrawFont(clippedOut, characterPosition, *baseFont, color, '|', outlined);
|
||
}
|
||
|
||
return bytesDrawn;
|
||
}
|
||
|
||
void DrawStringWithColors(const Surface &out, string_view fmt, DrawStringFormatArg *args, std::size_t argsLen, const Rectangle &rect, UiFlags flags, int spacing, int lineHeight)
|
||
{
|
||
GameFontTables size = GetSizeFromFlags(flags);
|
||
text_color color = GetColorFromFlags(flags);
|
||
|
||
int charactersInLine = 0;
|
||
int lineWidth = 0;
|
||
if (HasAnyOf(flags, (UiFlags::AlignCenter | UiFlags::AlignRight | UiFlags::KerningFitSpacing)))
|
||
lineWidth = GetLineWidth(fmt, args, argsLen, 0, size, spacing, &charactersInLine);
|
||
|
||
int maxSpacing = spacing;
|
||
if (HasAnyOf(flags, UiFlags::KerningFitSpacing))
|
||
spacing = AdjustSpacingToFitHorizontally(lineWidth, maxSpacing, charactersInLine, rect.size.width);
|
||
|
||
Point characterPosition { GetLineStartX(flags, rect, lineWidth), rect.position.y };
|
||
const int initialX = characterPosition.x;
|
||
|
||
const int rightMargin = rect.position.x + rect.size.width;
|
||
const int bottomMargin = rect.size.height != 0 ? std::min(rect.position.y + rect.size.height + BaseLineOffset[size], out.h()) : out.h();
|
||
|
||
if (lineHeight == -1)
|
||
lineHeight = GetLineHeight(fmt, args, argsLen, size);
|
||
|
||
if (HasAnyOf(flags, UiFlags::VerticalCenter)) {
|
||
int textHeight = (CountNewlines(fmt, args, argsLen) + 1) * lineHeight;
|
||
characterPosition.y += std::max(0, (rect.size.height - textHeight) / 2);
|
||
}
|
||
|
||
characterPosition.y += BaseLineOffset[size];
|
||
|
||
const bool outlined = HasAnyOf(flags, UiFlags::Outlined);
|
||
|
||
const Surface clippedOut = ClipSurface(out, rect);
|
||
|
||
CurrentFont currentFont;
|
||
|
||
char32_t prev = U'\0';
|
||
char32_t next;
|
||
string_view remaining = fmt;
|
||
FmtArgParser fmtArgParser { fmt, args, argsLen };
|
||
size_t cpLen;
|
||
for (; !remaining.empty() && remaining[0] != '\0'
|
||
&& (next = DecodeFirstUtf8CodePoint(remaining, &cpLen)) != Utf8DecodeError;
|
||
remaining.remove_prefix(cpLen), prev = next) {
|
||
if (((prev == U'{' || prev == U'}') && prev == next)
|
||
|| next == ZWSP)
|
||
continue;
|
||
|
||
const std::optional<std::size_t> fmtArgPos = fmtArgParser(remaining);
|
||
if (fmtArgPos) {
|
||
DoDrawString(clippedOut, args[*fmtArgPos].GetFormatted(), rect, characterPosition, spacing, lineHeight, lineWidth, rightMargin, bottomMargin, flags, size,
|
||
GetColorFromFlags(args[*fmtArgPos].GetFlags()), outlined);
|
||
// `fmtArgParser` has already consumed `remaining`. Ensure the loop doesn't consume any more.
|
||
cpLen = 0;
|
||
// The loop assigns `prev = next`. We want `prev` to be `\0` after this.
|
||
next = U'\0';
|
||
currentFont.clear();
|
||
continue;
|
||
}
|
||
|
||
if (!currentFont.load(size, color, next)) {
|
||
next = U'?';
|
||
if (!currentFont.load(size, color, next)) {
|
||
app_fatal("Missing fonts");
|
||
}
|
||
}
|
||
|
||
const uint8_t frame = next & 0xFF;
|
||
const uint16_t width = (*currentFont.sprite)[frame].width();
|
||
if (next == U'\n' || characterPosition.x + width > rightMargin) {
|
||
const int nextLineY = characterPosition.y + lineHeight;
|
||
if (nextLineY >= bottomMargin)
|
||
break;
|
||
characterPosition.y = nextLineY;
|
||
|
||
if (HasAnyOf(flags, (UiFlags::AlignCenter | UiFlags::AlignRight))) {
|
||
lineWidth = width;
|
||
if (remaining.size() > cpLen)
|
||
lineWidth += spacing + GetLineWidth(remaining.substr(cpLen), args, argsLen, fmtArgParser.offset(), size, spacing);
|
||
}
|
||
characterPosition.x = GetLineStartX(flags, rect, lineWidth);
|
||
|
||
if (next == U'\n')
|
||
continue;
|
||
}
|
||
|
||
DrawFont(clippedOut, characterPosition, *currentFont.sprite, color, frame, outlined);
|
||
characterPosition.x += width + spacing;
|
||
}
|
||
|
||
if (HasAnyOf(flags, UiFlags::PentaCursor)) {
|
||
const ClxSprite sprite = (*pSPentSpn2Cels)[PentSpn2Spin()];
|
||
MaybeWrap(characterPosition, sprite.width(), rightMargin, initialX, lineHeight);
|
||
ClxDraw(clippedOut, characterPosition + Displacement { 0, lineHeight - BaseLineOffset[size] }, sprite);
|
||
} else if (HasAnyOf(flags, UiFlags::TextCursor) && GetAnimationFrame(2, 500) != 0) {
|
||
MaybeWrap(characterPosition, 2, rightMargin, initialX, lineHeight);
|
||
OptionalClxSpriteList baseFont = LoadFont(size, color, 0);
|
||
if (baseFont)
|
||
DrawFont(clippedOut, characterPosition, *baseFont, color, '|', outlined);
|
||
}
|
||
}
|
||
|
||
uint8_t PentSpn2Spin()
|
||
{
|
||
return (SDL_GetTicks() / 50) % 8;
|
||
}
|
||
|
||
} // namespace devilution
|