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MOHAWK: Implement sliders

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svn-id: r54606
This commit is contained in:
Bastien Bouclet 2010-11-29 20:53:00 +00:00
parent 291bea1858
commit b4913548d0
2 changed files with 146 additions and 2 deletions
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137
engines/mohawk/myst_areas.cpp
View File

@ -26,6 +26,7 @@
#include "mohawk/graphics.h"
#include "mohawk/myst_areas.h"
#include "mohawk/myst_scripts.h"
#include "mohawk/sound.h"
#include "mohawk/video.h"
namespace Mohawk {
@ -463,6 +464,7 @@ MystResourceType10::MystResourceType10(MohawkEngine_Myst *vm, Common::SeekableRe
debugC(kDebugResource, "\tdrag sound : %d", _dragSound);
_background = 0;
_sliderWidth = _rect.right - _rect.left;
_sliderHeigth = _rect.bottom - _rect.top;
@ -470,7 +472,10 @@ MystResourceType10::MystResourceType10(MohawkEngine_Myst *vm, Common::SeekableRe
}
MystResourceType10::~MystResourceType10() {
if (_background) {
_background->free();
delete _background;
}
}
void MystResourceType10::setStep(uint16 step) {
@ -480,6 +485,136 @@ void MystResourceType10::setStep(uint16 step) {
_subImages[0].rect.bottom = 333 - _rect.top - 1;
}
Common::Rect MystResourceType10::boundingBox() {
Common::Rect bb;
bb.top = _rect.top;
bb.bottom = _rect.bottom;
bb.left = _rect.left;
bb.right = _rect.right;
if (_flagHV & 1) {
bb.left = _minH - _sliderWidth / 2;
bb.right = _maxH + _sliderWidth / 2;
}
if (_flagHV & 2) {
bb.top = _minV - _sliderHeigth / 2;
bb.bottom = _maxV + _sliderHeigth / 2;
}
return bb;
}
void MystResourceType10::drawDataToScreen() {
// Save the background to be able to restore it
if (!_background) {
Common::Rect bb = boundingBox();
Graphics::PixelFormat pixelFormat = _vm->_system->getScreenFormat();
_background = new Graphics::Surface();
_background->create(bb.width(), bb.height(), pixelFormat.bytesPerPixel);
Graphics::Surface *screen = _vm->_system->lockScreen();
for (uint16 i = 0; i < bb.height(); i++)
memcpy(_background->getBasePtr(0, i), screen->getBasePtr(bb.left, bb.top + i), bb.width() * _background->bytesPerPixel);
_vm->_system->unlockScreen();
}
MystResourceType8::drawDataToScreen();
}
void MystResourceType10::handleMouseDown(Common::Point *mouse) {
updatePosition(mouse);
MystResourceType8::handleMouseDown(mouse);
// Restore background
Common::Rect bb = boundingBox();
_vm->_system->copyRectToScreen((byte *)_background->getBasePtr(0, 0), _background->pitch, bb.left, bb.top, bb.width(), bb.height());
// Draw slider
drawConditionalDataToScreen(2);
}
void MystResourceType10::handleMouseUp(Common::Point *mouse) {
updatePosition(mouse);
MystResourceType8::handleMouseUp(mouse);
// Restore background
Common::Rect bb = boundingBox();
_vm->_system->copyRectToScreen((byte *)_background->getBasePtr(0, 0), _background->pitch, bb.left, bb.top, bb.width(), bb.height());
// Draw slider
drawConditionalDataToScreen(1);
}
void MystResourceType10::handleMouseDrag(Common::Point *mouse) {
updatePosition(mouse);
MystResourceType8::handleMouseDrag(mouse);
// Restore background
Common::Rect bb = boundingBox();
_vm->_system->copyRectToScreen((byte *)_background->getBasePtr(0, 0), _background->pitch, bb.left, bb.top, bb.width(), bb.height());
// Draw slider
drawConditionalDataToScreen(2);
}
void MystResourceType10::updatePosition(Common::Point *mouse) {
bool positionChanged = false;
setPositionClipping(mouse, mouse);
if (_flagHV & 2) {
if (_stepV) {
uint16 center = _minV + _stepV * (mouse->y - _minV) / _stepV;
uint16 top = center - _sliderHeigth / 2;
if (_rect.top != top) {
positionChanged = true;
_pos.y = center;
_rect.top = top;
}
} else {
positionChanged = true;
_pos.y = mouse->y;
_rect.top = mouse->y - _sliderHeigth / 2;
}
if (positionChanged) {
_rect.bottom = _rect.top + _sliderHeigth;
_subImages[0].rect.top = 333 - _rect.bottom - 1;
_subImages[0].rect.bottom = 333 - _rect.top - 1;
}
}
if (_flagHV & 1) {
if (_stepH) {
uint16 center = _minH + _stepH * (mouse->x - _minH) / _stepH;
uint16 left = center - _sliderWidth / 2;
if (_rect.left != left) {
positionChanged = true;
_pos.x = center;
_rect.left = left;
}
} else {
positionChanged = true;
_pos.x = mouse->x;
_rect.left = mouse->x - _sliderWidth / 2;
}
if (positionChanged) {
_rect.right = _rect.left + _sliderWidth;
}
}
if (positionChanged && _dragSound) {
_vm->_sound->playSound(_dragSound);
}
}
MystResourceType11::MystResourceType11(MohawkEngine_Myst *vm, Common::SeekableReadStream *rlstStream, MystResource *parent) : MystResourceType8(vm, rlstStream, parent) {
_flagHV = rlstStream->readUint16LE();
_minH = rlstStream->readUint16LE();

11
engines/mohawk/myst_areas.h
View File

@ -117,7 +117,7 @@ class MystResourceType8 : public MystResourceType7 {
public:
MystResourceType8(MohawkEngine_Myst *vm, Common::SeekableReadStream *rlstStream, MystResource *parent);
virtual ~MystResourceType8();
void drawDataToScreen();
virtual void drawDataToScreen();
void drawConditionalDataToScreen(uint16 state);
uint16 getType8Var();
@ -169,12 +169,21 @@ public:
MystResourceType10(MohawkEngine_Myst *vm, Common::SeekableReadStream *rlstStream, MystResource *parent);
virtual ~MystResourceType10();
void drawDataToScreen();
void handleMouseDown(Common::Point *mouse);
void handleMouseUp(Common::Point *mouse);
void handleMouseDrag(Common::Point *mouse);
void setStep(uint16 step);
protected:
Common::Rect boundingBox();
void updatePosition(Common::Point *mouse);
uint16 _dragSound;
uint16 _sliderWidth;
uint16 _sliderHeigth;
Graphics::Surface *_background;
};
class MystResourceType12 : public MystResourceType11 {