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it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 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 General Public License for more details.
You should have received a copy of the GNU 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"
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 = "fontdejavusansmono.png";
m_font = env->getFont(getTexturePath(font_name).c_str());
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()
{
}
void GUIChatConsole::openConsole(f32 height)
{
m_open = true;
m_desired_height_fraction = height;
m_desired_height = height * m_screensize.Y;
reformatConsole();
}
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)
{
if(event.EventType == EET_KEY_INPUT_EVENT && event.KeyInput.PressedDown)
{
// Key input
if(KeyPress(event.KeyInput) == getKeySetting("keymap_console"))
{
closeConsole();
Environment->removeFocus(this);
// inhibit open so the_game doesn't reopen immediately
m_open_inhibited = 50;
return true;
}
else if(event.KeyInput.Key == KEY_ESCAPE)
{
closeConsoleAtOnce();
Environment->removeFocus(this);
// the_game will open the pause menu
return true;
}
else if(event.KeyInput.Key == KEY_PRIOR)
{
m_chat_backend->scrollPageUp();
return true;
}
else if(event.KeyInput.Key == KEY_NEXT)
{
m_chat_backend->scrollPageDown();
return true;
}
else if(event.KeyInput.Key == KEY_RETURN)
{
std::wstring text = m_chat_backend->getPrompt().submit();
m_client->typeChatMessage(text);
return true;
}
else if(event.KeyInput.Key == KEY_UP)
{
// Up pressed
// Move back in history
m_chat_backend->getPrompt().historyPrev();
return true;
}
else if(event.KeyInput.Key == KEY_DOWN)
{
// Down pressed
// Move forward in history
m_chat_backend->getPrompt().historyNext();
return true;
}
else if(event.KeyInput.Key == KEY_LEFT)
{
// Left or Ctrl-Left pressed
// move character / word to the left
ChatPrompt::CursorOpScope scope =
event.KeyInput.Control ?
ChatPrompt::CURSOROP_SCOPE_WORD :
ChatPrompt::CURSOROP_SCOPE_CHARACTER;
m_chat_backend->getPrompt().cursorOperation(
ChatPrompt::CURSOROP_MOVE,
ChatPrompt::CURSOROP_DIR_LEFT,
scope);
return true;
}
else if(event.KeyInput.Key == KEY_RIGHT)
{
// Right or Ctrl-Right pressed
// move character / word to the right
ChatPrompt::CursorOpScope scope =
event.KeyInput.Control ?
ChatPrompt::CURSOROP_SCOPE_WORD :
ChatPrompt::CURSOROP_SCOPE_CHARACTER;
m_chat_backend->getPrompt().cursorOperation(
ChatPrompt::CURSOROP_MOVE,
ChatPrompt::CURSOROP_DIR_RIGHT,
scope);
return true;
}
else if(event.KeyInput.Key == KEY_HOME)
{
// Home pressed
// move to beginning of line
m_chat_backend->getPrompt().cursorOperation(
ChatPrompt::CURSOROP_MOVE,
ChatPrompt::CURSOROP_DIR_LEFT,
ChatPrompt::CURSOROP_SCOPE_LINE);
return true;
}
else if(event.KeyInput.Key == KEY_END)
{
// End pressed
// move to end of line
m_chat_backend->getPrompt().cursorOperation(
ChatPrompt::CURSOROP_MOVE,
ChatPrompt::CURSOROP_DIR_RIGHT,
ChatPrompt::CURSOROP_SCOPE_LINE);
return true;
}
else if(event.KeyInput.Key == KEY_BACK)
{
// Backspace or Ctrl-Backspace pressed
// delete character / word to the left
ChatPrompt::CursorOpScope scope =
event.KeyInput.Control ?
ChatPrompt::CURSOROP_SCOPE_WORD :
ChatPrompt::CURSOROP_SCOPE_CHARACTER;
m_chat_backend->getPrompt().cursorOperation(
ChatPrompt::CURSOROP_DELETE,
ChatPrompt::CURSOROP_DIR_LEFT,
scope);
return true;
}
else if(event.KeyInput.Key == KEY_DELETE)
{
// Delete or Ctrl-Delete pressed
// delete character / word to the right
ChatPrompt::CursorOpScope scope =
event.KeyInput.Control ?
ChatPrompt::CURSOROP_SCOPE_WORD :
ChatPrompt::CURSOROP_SCOPE_CHARACTER;
m_chat_backend->getPrompt().cursorOperation(
ChatPrompt::CURSOROP_DELETE,
ChatPrompt::CURSOROP_DIR_RIGHT,
scope);
return true;
}
else if(event.KeyInput.Key == KEY_KEY_U && event.KeyInput.Control)
{
// Ctrl-U pressed
// kill line to left end
m_chat_backend->getPrompt().cursorOperation(
ChatPrompt::CURSOROP_DELETE,
ChatPrompt::CURSOROP_DIR_LEFT,
ChatPrompt::CURSOROP_SCOPE_LINE);
return true;
}
else if(event.KeyInput.Key == KEY_KEY_K && event.KeyInput.Control)
{
// Ctrl-K pressed
// kill line to right end
m_chat_backend->getPrompt().cursorOperation(
ChatPrompt::CURSOROP_DELETE,
ChatPrompt::CURSOROP_DIR_RIGHT,
ChatPrompt::CURSOROP_SCOPE_LINE);
return true;
}
else if(event.KeyInput.Key == KEY_TAB)
{
// Tab or Shift-Tab pressed
// Nick completion
core::list<std::wstring> names = m_client->getConnectedPlayerNames();
bool backwards = event.KeyInput.Shift;
m_chat_backend->getPrompt().nickCompletion(names, backwards);
return true;
}
else if(event.KeyInput.Char != 0 && !event.KeyInput.Control)
{
m_chat_backend->getPrompt().input(event.KeyInput.Char);
return true;
}
}
else if(event.EventType == EET_MOUSE_INPUT_EVENT)
{
if(event.MouseInput.Event == EMIE_MOUSE_WHEEL)
{
s32 rows = myround(-3.0 * event.MouseInput.Wheel);
m_chat_backend->scroll(rows);
}
}
return Parent ? Parent->OnEvent(event) : false;
}