mirror of https://github.com/OpenRCT2/OpenRCT2.git
274 lines
8.7 KiB
C++
274 lines
8.7 KiB
C++
#pragma region Copyright (c) 2014-2017 OpenRCT2 Developers
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/*****************************************************************************
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* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
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*
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* OpenRCT2 is the work of many authors, a full list can be found in contributors.md
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* For more information, visit https://github.com/OpenRCT2/OpenRCT2
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*
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* OpenRCT2 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 3 of the License, or
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* (at your option) any later version.
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*
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* A full copy of the GNU General Public License can be found in licence.txt
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*****************************************************************************/
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#pragma endregion
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#include <openrct2/Context.h>
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#include <openrct2/OpenRCT2.h>
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#include <openrct2/core/Math.hpp>
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#include <openrct2/core/Memory.hpp>
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#include <openrct2-ui/windows/Window.h>
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#include <openrct2/interface/widget.h>
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#include <openrct2/localisation/localisation.h>
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#include <openrct2/platform/platform.h>
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#include <openrct2/util/util.h>
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enum {
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WIDX_BACKGROUND,
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WIDX_TITLE,
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WIDX_CLOSE,
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WIDX_CONTENT_PANEL,
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WIDX_SCROLL
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};
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#define WW 500
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#define WH 400
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#define MIN_WW 300
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#define MIN_WH 200
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static rct_widget window_changelog_widgets[] = {
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{ WWT_FRAME, 0, 0, WW - 1, 0, WH - 1, 0xFFFFFFFF, STR_NONE }, // panel / background
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{ WWT_CAPTION, 0, 1, WW - 2, 1, 14, STR_CHANGELOG_TITLE, STR_WINDOW_TITLE_TIP }, // title bar
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{ WWT_CLOSEBOX, 0, WW - 13, WW - 3, 2, 13, STR_CLOSE_X, STR_CLOSE_WINDOW_TIP }, // close x button
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{ WWT_RESIZE, 1, 0, WW - 1, 14, WH - 1, 0xFFFFFFFF, STR_NONE }, // content panel
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{ WWT_SCROLL, 1, 3, WW - 3, 16, WH - 15, SCROLL_BOTH, STR_NONE }, // scroll area
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{ WIDGETS_END },
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};
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static void window_changelog_close(rct_window *w);
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static void window_changelog_mouseup(rct_window *w, rct_widgetindex widgetIndex);
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static void window_changelog_resize(rct_window *w);
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static void window_changelog_scrollgetsize(rct_window *w, sint32 scrollIndex, sint32 *width, sint32 *height);
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static void window_changelog_invalidate(rct_window *w);
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static void window_changelog_paint(rct_window *w, rct_drawpixelinfo *dpi);
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static void window_changelog_scrollpaint(rct_window *w, rct_drawpixelinfo *dpi, sint32 scrollIndex);
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static rct_window_event_list window_changelog_events = {
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window_changelog_close,
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window_changelog_mouseup,
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window_changelog_resize,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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window_changelog_scrollgetsize,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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nullptr,
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window_changelog_invalidate,
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window_changelog_paint,
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window_changelog_scrollpaint
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};
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static bool window_changelog_read_file();
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static void window_changelog_dispose_file();
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static char *_changelogText = nullptr;
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static size_t _changelogTextSize = 0;
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static char **_changelogLines = nullptr;
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static sint32 _changelogNumLines = 0;
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static sint32 _changelogLongestLineWidth = 0;
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rct_window * window_changelog_open()
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{
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rct_window* window;
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window = window_bring_to_front_by_class(WC_CHANGELOG);
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if (window != nullptr)
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return window;
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if (!window_changelog_read_file())
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return nullptr;
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sint32 screenWidth = context_get_width();
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sint32 screenHeight = context_get_height();
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window = window_create_centred(
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screenWidth * 4 / 5,
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screenHeight * 4 / 5,
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&window_changelog_events,
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WC_CHANGELOG,
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WF_RESIZABLE
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);
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window->widgets = window_changelog_widgets;
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window->enabled_widgets = (1 << WIDX_CLOSE);
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window_init_scroll_widgets(window);
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window->min_width = MIN_WW;
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window->min_height = MIN_WH;
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window->max_width = MIN_WW;
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window->max_height = MIN_WH;
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return window;
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}
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static void window_changelog_close(rct_window *w)
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{
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window_changelog_dispose_file();
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}
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static void window_changelog_mouseup(rct_window *w, rct_widgetindex widgetIndex)
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{
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switch (widgetIndex) {
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case WIDX_CLOSE:
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window_close(w);
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break;
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}
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}
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static void window_changelog_resize(rct_window *w)
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{
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sint32 screenWidth = context_get_width();
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sint32 screenHeight = context_get_height();
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w->max_width = (screenWidth * 4) / 5;
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w->max_height = (screenHeight * 4) / 5;
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w->min_width = MIN_WW;
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w->min_height = MIN_WH;
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if (w->width < w->min_width) {
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window_invalidate(w);
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w->width = w->min_width;
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}
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if (w->height < w->min_height) {
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window_invalidate(w);
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w->height = w->min_height;
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}
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}
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static void window_changelog_scrollgetsize(rct_window *w, sint32 scrollIndex, sint32 *width, sint32 *height)
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{
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*width = _changelogLongestLineWidth + 4;
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*height = _changelogNumLines * 11;
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}
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static void window_changelog_invalidate(rct_window *w)
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{
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window_changelog_widgets[WIDX_BACKGROUND].right = w->width - 1;
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window_changelog_widgets[WIDX_BACKGROUND].bottom = w->height - 1;
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window_changelog_widgets[WIDX_TITLE].right = w->width - 2;
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window_changelog_widgets[WIDX_CLOSE].left = w->width - 13;
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window_changelog_widgets[WIDX_CLOSE].right = w->width - 3;
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window_changelog_widgets[WIDX_CONTENT_PANEL].right = w->width - 1;
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window_changelog_widgets[WIDX_CONTENT_PANEL].bottom = w->height - 1;
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window_changelog_widgets[WIDX_SCROLL].right = w->width - 3;
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window_changelog_widgets[WIDX_SCROLL].bottom = w->height - 15;
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}
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static void window_changelog_paint(rct_window *w, rct_drawpixelinfo *dpi)
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{
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window_draw_widgets(w, dpi);
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}
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static void window_changelog_scrollpaint(rct_window *w, rct_drawpixelinfo *dpi, sint32 scrollIndex)
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{
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gCurrentFontFlags = 0;
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gCurrentFontSpriteBase = FONT_SPRITE_BASE_MEDIUM;
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sint32 x = 3;
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sint32 y = 3;
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for (sint32 i = 0; i < _changelogNumLines; i++) {
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gfx_draw_string(dpi, _changelogLines[i], w->colours[0], x, y);
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y += 11;
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}
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}
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static bool window_changelog_read_file()
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{
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window_changelog_dispose_file();
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utf8 path[MAX_PATH];
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platform_get_changelog_path(path, sizeof(path));
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if (!readentirefile(path, (void**)&_changelogText, &_changelogTextSize)) {
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log_error("Unable to read changelog.txt");
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return false;
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}
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void* new_memory = realloc(_changelogText, _changelogTextSize + 1);
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if (new_memory == nullptr) {
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log_error("Failed to reallocate memory for changelog text");
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return false;
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}
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_changelogText = (char*)new_memory;
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_changelogText[_changelogTextSize++] = 0;
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char *start = _changelogText;
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if (_changelogTextSize >= 3 && utf8_is_bom(_changelogText))
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start += 3;
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sint32 changelogLinesCapacity = 8;
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_changelogLines = Memory::Allocate<utf8*>(changelogLinesCapacity * sizeof(char*));
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_changelogLines[0] = start;
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_changelogNumLines = 1;
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char *ch = start;
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while (*ch != 0) {
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uint8 c = *ch;
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if (c == '\n') {
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*ch++ = 0;
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_changelogNumLines++;
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if (_changelogNumLines > changelogLinesCapacity) {
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changelogLinesCapacity *= 2;
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new_memory = realloc(_changelogLines, changelogLinesCapacity * sizeof(char*));
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if (new_memory == nullptr) {
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log_error("Failed to reallocate memory for change log lines");
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return false;
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}
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_changelogLines = (char**)new_memory;
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}
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_changelogLines[_changelogNumLines - 1] = ch;
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} else if (c < 32 || c > 122) {
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// A character that won't be drawn or change state.
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*ch++ = FORMAT_OUTLINE_OFF;
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} else {
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ch++;
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}
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}
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new_memory = realloc(_changelogLines, _changelogNumLines * sizeof(char*));
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if (new_memory == nullptr) {
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log_error("Failed to reallocate memory for change log lines");
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return false;
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}
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_changelogLines = (char**)new_memory;
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gCurrentFontSpriteBase = FONT_SPRITE_BASE_MEDIUM;
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_changelogLongestLineWidth = 0;
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for (sint32 i = 0; i < _changelogNumLines; i++) {
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sint32 width = gfx_get_string_width(_changelogLines[i]);
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_changelogLongestLineWidth = Math::Max(width, _changelogLongestLineWidth);
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}
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return true;
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}
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static void window_changelog_dispose_file()
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{
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SafeFree(_changelogText);
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SafeFree(_changelogLines);
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_changelogTextSize = 0;
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_changelogNumLines = 0;
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}
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