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2026-02-02 04:50:13 +01:00

87 lines
2.5 KiB
C++

/* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "ultima/ultima1/u1gfx/text_cursor.h"
#include "ultima/shared/early/ultima_early.h"
#include "ultima/shared/gfx/screen.h"
#include "common/system.h"
#include "graphics/managed_surface.h"
namespace Ultima {
namespace Ultima1 {
namespace U1Gfx {
#define CURSOR_ANIM_FRAME_TIME 100
#define CURSOR_W 8
#define CURSOR_H 8
static const byte TEXT_CURSOR_FRAMES[4][8] = {
{ 0x66, 0x3C, 0x18, 0x66, 0x66, 0x18, 0x3C, 0x66 },
{ 0x3C, 0x18, 0x66, 0x24, 0x24, 0x66, 0x18, 0x3C },
{ 0x18, 0x66, 0x24, 0x3C, 0x3C, 0x24, 0x66, 0x18 },
{ 0x66, 0x24, 0x18, 0x18, 0x18, 0x18, 0x3C, 0x66 }
};
U1TextCursor::U1TextCursor(const byte &fgColor, const byte &bgColor) : _fgColor(fgColor),
_bgColor(bgColor), _frameNum(0), _lastFrameFrame(0) {
_bounds = Common::Rect(0, 0, 8, 8);
}
void U1TextCursor::update() {
uint32 time = getTime();
if (!_visible || !_fgColor || (time - _lastFrameFrame) < CURSOR_ANIM_FRAME_TIME)
return;
// Increment to next frame
_lastFrameFrame = time;
_frameNum = (_frameNum + 1) % 3;
markAsDirty();
}
void U1TextCursor::draw() {
if (!_visible)
return;
// Get the surface area to draw the cursor on
Graphics::ManagedSurface s(8, 8);
// Loop to draw the cursor
for (int y = 0; y < CURSOR_H; ++y) {
byte *lineP = (byte *)s.getBasePtr(0, y);
byte bits = TEXT_CURSOR_FRAMES[_frameNum][y];
for (int x = 0; x < CURSOR_W; ++x, ++lineP, bits >>= 1) {
*lineP = (bits & 1) ? _fgColor : _bgColor;
}
}
g_system->copyRectToScreen(s.getPixels(), s.pitch, _bounds.left, _bounds.top, _bounds.width(), _bounds.height());
}
uint32 U1TextCursor::getTime() {
return g_system->getMillis();
}
} // End of namespace U1Gfx
} // End of namespace Ultima1
} // End of namespace Ultima