minetest.git - modified minetest for gpcfs purposes

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/* Minetest Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com> This program is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "guiChatConsole.h" #include "chat.h" #include "client.h" #include "debug.h" #include "gettime.h" #include "keycode.h" #include "settings.h" #include "main.h" // for g_settings #include "porting.h" #include "tile.h" #include "IGUIFont.h" #include <string> #include "gettext.h" #if USE_FREETYPE #include "xCGUITTFont.h" #endif inline u32 clamp_u8(s32 value) { return (u32) MYMIN(MYMAX(value, 0), 255); } GUIChatConsole::GUIChatConsole( gui::IGUIEnvironment* env, gui::IGUIElement* parent, s32 id, ChatBackend* backend, Client* client ): IGUIElement(gui::EGUIET_ELEMENT, env, parent, id, core::rect<s32>(0,0,100,100)), m_chat_backend(backend), m_client(client), m_screensize(v2u32(0,0)), m_animate_time_old(0), m_open(false), m_height(0), m_desired_height(0), m_desired_height_fraction(0.0), m_height_speed(5.0), m_open_inhibited(0), m_cursor_blink(0.0), m_cursor_blink_speed(0.0), m_cursor_height(0.0), m_background(NULL), m_background_color(255, 0, 0, 0), m_font(NULL), m_fontsize(0, 0) { m_animate_time_old = getTimeMs(); // load background settings bool console_color_set = !g_settings->get("console_color").empty(); s32 console_alpha = g_settings->getS32("console_alpha"); // load the background texture depending on settings m_background_color.setAlpha(clamp_u8(console_alpha)); if (console_color_set) { v3f console_color = g_settings->getV3F("console_color"); m_background_color.setRed(clamp_u8(myround(console_color.X))); m_background_color.setGreen(clamp_u8(myround(console_color.Y))); m_background_color.setBlue(clamp_u8(myround(console_color.Z))); } else { m_background = env->getVideoDriver()->getTexture(getTexturePath("background_chat.jpg").c_str()); m_background_color.setRed(255); m_background_color.setGreen(255); m_background_color.setBlue(255); } // load the font // FIXME should a custom texture_path be searched too? std::string font_name = g_settings->get("mono_font_path"); #if USE_FREETYPE m_use_freetype = g_settings->getBool("freetype"); if (m_use_freetype) { u16 font_size = g_settings->getU16("mono_font_size"); m_font = gui::CGUITTFont::createTTFont(env, font_name.c_str(), font_size); } else { m_font = env->getFont(font_name.c_str()); } #else m_font = env->getFont(font_name.c_str()); #endif if (m_font == NULL) { dstream << "Unable to load font: " << font_name << std::endl; } else { core::dimension2d<u32> dim = m_font->getDimension(L"M"); m_fontsize = v2u32(dim.Width, dim.Height); dstream << "Font size: " << m_fontsize.X << " " << m_fontsize.Y << std::endl; } m_fontsize.X = MYMAX(m_fontsize.X, 1); m_fontsize.Y = MYMAX(m_fontsize.Y, 1); // set default cursor options setCursor(true, true, 2.0, 0.1); } GUIChatConsole::~GUIChatConsole() { #if USE_FREETYPE if (m_use_freetype) m_font->drop(); #endif } void GUIChatConsole::openConsole(f32 height) { m_open = true; m_desired_height_fraction = height; m_desired_height = height * m_screensize.Y; reformatConsole(); } bool GUIChatConsole::isOpen() const { return m_open; } bool GUIChatConsole::isOpenInhibited() const { return m_open_inhibited > 0; } void GUIChatConsole::closeConsole() { m_open = false; } void GUIChatConsole::closeConsoleAtOnce() { m_open = false; m_height = 0; recalculateConsolePosition(); } f32 GUIChatConsole::getDesiredHeight() const { return m_desired_height_fraction; } void GUIChatConsole::setCursor( bool visible, bool blinking, f32 blink_speed, f32 relative_height) { if (visible) { if (blinking) { // leave m_cursor_blink unchanged m_cursor_blink_speed = blink_speed; } else { m_cursor_blink = 0x8000; // on m_cursor_blink_speed = 0.0; } } else { m_cursor_blink = 0; // off m_cursor_blink_speed = 0.0; } m_cursor_height = relative_height; } void GUIChatConsole::draw() { if(!IsVisible) return; video::IVideoDriver* driver = Environment->getVideoDriver(); // Check screen size v2u32 screensize = driver->getScreenSize(); if (screensize != m_screensize) { // screen size has changed // scale current console height to new window size if (m_screensize.Y != 0) m_height = m_height * screensize.Y / m_screensize.Y; m_desired_height = m_desired_height_fraction * m_screensize.Y; m_screensize = screensize; reformatConsole(); } // Animation u32 now = getTimeMs(); animate(now - m_animate_time_old); m_animate_time_old = now; // Draw console elements if visible if (m_height > 0) { drawBackground(); drawText(); drawPrompt(); } gui::IGUIElement::draw(); } void GUIChatConsole::reformatConsole() { s32 cols = m_screensize.X / m_fontsize.X - 2; // make room for a margin (looks better) s32 rows = m_desired_height / m_fontsize.Y - 1; // make room for the input prompt if (cols <= 0 || rows <= 0) cols = rows = 0; m_chat_backend->reformat(cols, rows); } void GUIChatConsole::recalculateConsolePosition() { core::rect<s32> rect(0, 0, m_screensize.X, m_height); DesiredRect = rect; recalculateAbsolutePosition(false); } void GUIChatConsole::animate(u32 msec) { // animate the console height s32 goal = m_open ? m_desired_height : 0; if (m_height != goal) { s32 max_change = msec * m_screensize.Y * (m_height_speed / 1000.0); if (max_change == 0) max_change = 1; if (m_height < goal) { // increase height if (m_height + max_change < goal) m_height += max_change; else m_height = goal; } else { // decrease height if (m_height > goal + max_change) m_height -= max_change; else m_height = goal; } recalculateConsolePosition(); } // blink the cursor if (m_cursor_blink_speed != 0.0) { u32 blink_increase = 0x10000 * msec * (m_cursor_blink_speed / 1000.0); if (blink_increase == 0) blink_increase = 1; m_cursor_blink = ((m_cursor_blink + blink_increase) & 0xffff); } // decrease open inhibit counter if (m_open_inhibited > msec) m_open_inhibited -= msec; else m_open_inhibited = 0; } void GUIChatConsole::drawBackground() { video::IVideoDriver* driver = Environment->getVideoDriver(); if (m_background != NULL) { core::rect<s32> sourcerect(0, -m_height, m_screensize.X, 0); driver->draw2DImage( m_background, v2s32(0, 0), sourcerect, &AbsoluteClippingRect, m_background_color, false); } else { driver->draw2DRectangle( m_background_color, core::rect<s32>(0, 0, m_screensize.X, m_height), &AbsoluteClippingRect); } } void GUIChatConsole::drawText() { if (m_font == NULL) return; ChatBuffer& buf = m_chat_backend->getConsoleBuffer(); for (u32 row = 0; row < buf.getRows(); ++row) { const ChatFormattedLine& line = buf.getFormattedLine(row); if (line.fragments.empty()) continue; s32 line_height = m_fontsize.Y; s32 y = row * line_height + m_height - m_desired_height; if (y + line_height < 0) continue; for (u32 i = 0; i < line.fragments.size(); ++i) { const ChatFormattedFragment& fragment = line.fragments[i]; s32 x = (fragment.column + 1) * m_fontsize.X; core::rect<s32> destrect( x, y, x + m_fontsize.X * fragment.text.size(), y + m_fontsize.Y); m_font->draw( fragment.text.c_str(), destrect, video::SColor(255, 255, 255, 255), false, false, &AbsoluteClippingRect); } } } void GUIChatConsole::drawPrompt() { if (m_font == NULL) return; u32 row = m_chat_backend->getConsoleBuffer().getRows(); s32 line_height = m_fontsize.Y; s32 y = row * line_height + m_height - m_desired_height; ChatPrompt& prompt = m_chat_backend->getPrompt(); std::wstring prompt_text = prompt.getVisiblePortion(); // FIXME Draw string at once, not character by character // That will only work with the cursor once we have a monospace font for (u32 i = 0; i < prompt_text.size(); ++i) { wchar_t ws[2] = {prompt_text[i], 0}; s32 x = (1 + i) * m_fontsize.X; core::rect<s32> destrect( x, y, x + m_fontsize.X, y + m_fontsize.Y); m_font->draw( ws, destrect, video::SColor(255, 255, 255, 255), false, false, &AbsoluteClippingRect); } // Draw the cursor during on periods if ((m_cursor_blink & 0x8000) != 0) { s32 cursor_pos = prompt.getVisibleCursorPosition(); if (cursor_pos >= 0) { video::IVideoDriver* driver = Environment->getVideoDriver(); s32 x = (1 + cursor_pos) * m_fontsize.X; core::rect<s32> destrect( x, y + (1.0-m_cursor_height) * m_fontsize.Y, x + m_fontsize.X, y + m_fontsize.Y); video::SColor cursor_color(255,255,255,255); driver->draw2DRectangle( cursor_color, destrect, &AbsoluteClippingRect); } } } bool GUIChatConsole::OnEvent(const SEvent& event) {


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