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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify 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 "sherlock/tattoo/widget_tooltip.h"
#include "sherlock/tattoo/tattoo_map.h"
#include "sherlock/tattoo/tattoo_scene.h"
#include "sherlock/tattoo/tattoo_user_interface.h"
#include "sherlock/tattoo/tattoo.h"
namespace Sherlock {
namespace Tattoo {
#define MAX_TOOLTIP_WIDTH 150
void WidgetTooltipBase::draw() {
Screen &screen = *_vm->_screen;
// If there was a previously drawn frame in a different position that hasn't yet been erased, then erase it
if (_oldBounds.width() > 0 && _oldBounds != _bounds)
erase();
if (_bounds.width() > 0 && !_surface.empty()) {
restrictToScreen();
// Blit the affected area to the screen
screen.slamRect(_bounds);
// Draw the widget directly onto the screen. Unlike other widgets, we don't draw to the back buffer,
// since nothing should be drawing on top of tooltips, so there's no need to store in the back buffer
screen.transBlitFrom(_surface, Common::Point(_bounds.left - screen._currentScroll.x,
_bounds.top - screen._currentScroll.y));
// Store a copy of the drawn area for later erasing
_oldBounds = _bounds;
}
}
void WidgetTooltipBase::erase() {
Screen &screen = *_vm->_screen;
if (_oldBounds.width() > 0) {
// Restore the affected area from the back buffer to the screen
screen.slamRect(_oldBounds);
// Reset the old bounds so it won't be erased again
_oldBounds = Common::Rect(0, 0, 0, 0);
}
}
/*----------------------------------------------------------------*/
WidgetTooltip::WidgetTooltip(SherlockEngine *vm) : WidgetTooltipBase (vm), _offsetY(0) {
}
void WidgetTooltip::setText(const Common::String &str) {
Events &events = *_vm->_events;
Common::Point mousePos = events.mousePos();
bool reset = false;
// Make sure that the description is present
if (!str.empty()) {
int width = _surface.stringWidth(str) + 2;
int height = _surface.stringHeight(str) + 2;
Common::String line1 = str, line2 = "";
// See if we need to split it into two lines
if (width > MAX_TOOLTIP_WIDTH) {
// Go forward word by word to find out where to split the line
const char *s = str.c_str();
const char *space = nullptr;
int dif = 10000;
for (;;) {
// Find end of next word
s = strchr(s + 1, ' ');
if (s == nullptr) {
// Reached end of string
if (space != nullptr) {
line1 = Common::String(str.c_str(), space);
line2 = Common::String(space + 1);
height = _surface.stringHeight(line1) + _surface.stringHeight(line2) + 4;
}
break;
}
// Found space separating words, so see what width the string up to now is
Common::String tempLine1 = Common::String(str.c_str(), s);
Common::String tempLine2 = Common::String(s + 1);
int width1 = _surface.stringWidth(tempLine1);
int width2 = _surface.stringWidth(tempLine2);
// See if we've found a split point that results in a less overall width
if (ABS(width1 - width2) < dif) {
// Found a better split point
dif = ABS(width1 - width2);
space = s;
line1 = tempLine1;
line2 = tempLine2;
}
}
} else {
// No line split needed
height = _surface.stringHeight(str) + 2;
}
// Reallocate the text surface with the new size
_surface.create(width, height);
_surface.fill(TRANSPARENCY);
if (line2.empty()) {
// Only a single line
_surface.writeFancyString(str, Common::Point(0, 0), BLACK, INFO_TOP);
} else {
// Two lines to display
int xp, yp;
xp = (width - _surface.stringWidth(line1) - 2) / 2;
_surface.writeFancyString(line1, Common::Point(xp, 0), BLACK, INFO_TOP);
xp = (width - _surface.stringWidth(line2) - 2) / 2;
yp = _surface.stringHeight(line1) + 2;
_surface.writeFancyString(line2, Common::Point(xp, yp), BLACK, INFO_TOP);
}
// Set the initial display position for the tooltip text
int tagX = mousePos.x - width / 2;
int tagY = mousePos.y - height - _offsetY;
_bounds = Common::Rect(tagX, tagY, tagX + width, tagY + height);
} else {
reset = true;
}
if (reset && !_surface.empty()) {
_surface.free();
}
}
void WidgetTooltip::handleEvents() {
Events &events = *_vm->_events;
Common::Point mousePos = events.mousePos();
// Set the new position for the tooltip
int xp = mousePos.x - _bounds.width() / 2;
int yp = mousePos.y - _bounds.height() - _offsetY;
_bounds.moveTo(xp, yp);
}
/*----------------------------------------------------------------*/
void WidgetSceneTooltip::handleEvents() {
Events &events = *_vm->_events;
People &people = *_vm->_people;
Scene &scene = *_vm->_scene;
TattooUserInterface &ui = *(TattooUserInterface *)_vm->_ui;
Common::Point mousePos = events.mousePos();
// See if thay are pointing at a different object and we need to regenerate the tooltip text
if (ui._bgFound != ui._oldBgFound || (ui._bgFound != -1 && _surface.empty()) ||
ui._arrowZone != ui._oldArrowZone || (ui._arrowZone != -1 && _surface.empty())) {
// See if there is a new object to display text for
if ((ui._bgFound != -1 && (ui._bgFound != ui._oldBgFound || (ui._bgFound != -1 && _surface.empty()))) ||
(ui._arrowZone != -1 && (ui._arrowZone != ui._oldArrowZone || (ui._arrowZone != -1 && _surface.empty())))) {
Common::String str;
if (ui._bgFound != -1) {
// Clear the Arrow Zone fields so it won't think we're displaying an Arrow Zone cursor
if (scene._currentScene != OVERHEAD_MAP2)
ui._arrowZone = ui._oldArrowZone = -1;
// Get the description string
str = (ui._bgFound < 1000) ? scene._bgShapes[ui._bgFound]._description :
people[ui._bgFound - 1000]._description;
// WORKAORUND: On the train ride to Cambridge, don't show any tooltips
if (scene._currentScene == TRAIN_RIDE)
str = "";
} else {
// Get the exit zone description
str = scene._exits[ui._arrowZone]._dest;
}
setText(str.hasPrefix(" ") ? Common::String() : str);
} else if ((ui._bgFound == -1 && ui._oldBgFound != -1) || (ui._arrowZone == -1 && ui._oldArrowZone != -1)) {
setText("");
}
ui._oldBgFound = ui._bgFound;
} else {
// Set the new position for the tooltip
int tagX = CLIP(mousePos.x - _bounds.width() / 2, 0, SHERLOCK_SCREEN_WIDTH - _bounds.width());
int tagY = MAX(mousePos.y - _bounds.height() - _offsetY, 0);
_bounds.moveTo(tagX, tagY);
}
ui._oldArrowZone = ui._arrowZone;
WidgetTooltip::handleEvents();
}
} // End of namespace Tattoo
} // End of namespace Sherlock
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