Started integration of new drawing code. Still so much work to do. Simplified some parts of the code. Scrollbars are broken in many ways, need refactoring

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13393 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stefano Ceccherini 2005-07-01 22:13:10 +00:00
parent bc1a7f9f09
commit 267b721430
2 changed files with 469 additions and 241 deletions

View File

@ -107,7 +107,6 @@ private:
friend class BScrollArrowButton;
friend class Private;
friend status_t control_scrollbar(scroll_bar_info *info, BScrollBar *bar); // for use within the preflet
friend status_t scroll_by_value(float valueByWhichToScroll, BScrollBar *bar); // for use here within the IK
virtual void _ReservedScrollBar1();
virtual void _ReservedScrollBar2();
virtual void _ReservedScrollBar3();
@ -117,6 +116,15 @@ virtual void _ReservedScrollBar4();
void DoScroll(float delta);
void InitObject(float min, float max, orientation o, BView *t);
void DrawButtons();
void DrawArrow(BPoint pos, int32 which, bool pressed = false);
void DrawButton(BRect frame, bool pressed = false);
bool DoubleArrows() const;
status_t ScrollByValue(float value);
float fMin;
float fMax;
float fSmallStep;

View File

@ -36,14 +36,6 @@
//#define TEST_MODE
typedef enum {
ARROW_LEFT = 0,
ARROW_RIGHT,
ARROW_UP,
ARROW_DOWN,
ARROW_NONE
} arrow_direction;
#define SBC_SCROLLBYVALUE 0
#define SBC_SETDOUBLE 1
#define SBC_SETPROPORTIONAL 2
@ -70,20 +62,20 @@ public:
fExitRepeater(false),
fTracking(false),
fThumbInc(1),
fArrowDown(ARROW_NONE),
fArrowDown(0),
fButtonDown(NOARROW)
{
fThumbFrame.Set(0, 0, B_V_SCROLL_BAR_WIDTH, B_H_SCROLL_BAR_HEIGHT);
fMousePos.Set(0,0);
#ifdef TEST_MODE
//#ifdef TEST_MODE
fScrollBarInfo.proportional = true;
fScrollBarInfo.double_arrows = false;
fScrollBarInfo.double_arrows = true;
fScrollBarInfo.knob = 0;
fScrollBarInfo.min_knob_size = 14;
#else
get_scroll_bar_info(&fScrollBarInfo);
#endif
//#else
// get_scroll_bar_info(&fScrollBarInfo);
//#endif
}
~Private()
@ -95,9 +87,6 @@ public:
}
}
void DrawScrollBarButton(BScrollBar *owner, arrow_direction direction,
const BPoint &offset, bool down = false);
static int32 ButtonRepeaterThread(void *data);
bool fEnabled;
@ -115,7 +104,7 @@ public:
BPoint fMousePos;
float fThumbInc;
arrow_direction fArrowDown;
uint32 fArrowDown;
int8 fButtonDown;
};
@ -140,10 +129,10 @@ BScrollBar::Private::ButtonRepeaterThread(void *data)
float scrollvalue = 0;
if (scrollBar->fPrivateData->fArrowDown == ARROW_LEFT
|| scrollBar->fPrivateData->fArrowDown == ARROW_UP)
if (scrollBar->fPrivateData->fArrowDown == B_LEFT_ARROW
|| scrollBar->fPrivateData->fArrowDown == B_UP_ARROW)
scrollvalue = -scrollBar->fSmallStep;
else if (scrollBar->fPrivateData->fArrowDown != ARROW_NONE)
else if (scrollBar->fPrivateData->fArrowDown != 0)
scrollvalue = scrollBar->fSmallStep;
else
exitval = true;
@ -152,7 +141,7 @@ BScrollBar::Private::ButtonRepeaterThread(void *data)
oldframe = scrollBar->fPrivateData->fThumbFrame;
scrollBar->Window()->Lock();
returnval = scroll_by_value(scrollvalue, scrollBar);
returnval = scrollBar->ScrollByValue(scrollvalue);
scrollBar->Window()->Unlock();
snooze(50000);
@ -187,14 +176,15 @@ BScrollBar::BScrollBar(BRect frame,const char *name,BView *target,float min,
fSmallStep(1),
fLargeStep(10),
fValue(0),
fTarget(target),
fProportion(1),
fTarget(NULL),
fOrientation(direction)
{
SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));
fPrivateData = new BScrollBar::Private;
if (fTarget) {
/*if (fTarget) {
fTargetName = strdup(fTarget->Name());
// TODO: theoretically, we should also set the target BView's scrollbar
@ -202,6 +192,8 @@ BScrollBar::BScrollBar(BRect frame,const char *name,BView *target,float min,
}
else
fTargetName=NULL;
*/
SetTarget(target);
if (direction == B_VERTICAL) {
if (frame.Width() > B_V_SCROLL_BAR_WIDTH)
@ -227,13 +219,44 @@ BScrollBar::BScrollBar(BRect frame,const char *name,BView *target,float min,
SetResizingMode((direction == B_VERTICAL) ?
B_FOLLOW_TOP_BOTTOM | B_FOLLOW_RIGHT :
B_FOLLOW_LEFT_RIGHT | B_FOLLOW_BOTTOM );
}
BScrollBar::BScrollBar(BMessage *data)
: BView(data)
BScrollBar::BScrollBar(BMessage *archive)
:BView(archive),
fMin(0.0f),
fMax(0.0f),
fSmallStep(1.0f),
fLargeStep(10.0f),
fValue(0.0f),
fProportion(1),
fTarget(NULL),
fOrientation(B_HORIZONTAL),
fTargetName(NULL)
{
archive->FindFloat("_range", &fMin);
archive->FindFloat("_range", 1, &fMax);
float smallStep, largeStep;
if (archive->FindFloat("_steps", &smallStep) == B_OK &&
archive->FindFloat("_steps", 1, &largeStep) == B_OK)
SetSteps(smallStep, largeStep);
float value;
if (archive->FindFloat("_val", &value) == B_OK)
SetValue(value);
int32 direction;
if (archive->FindInt32("_orient", &direction) == B_OK)
fOrientation = (orientation)direction;
else
fOrientation = B_HORIZONTAL;
float proportion;
if (archive->FindFloat("_prop", &proportion) == B_OK)
SetProportion(proportion);
// TODO: SetTarget?
}
@ -493,9 +516,9 @@ BScrollBar::MouseDown(BPoint pt)
if (fOrientation == B_VERTICAL) {
if (buttonrect.Contains(pt)) {
scrollval = -fSmallStep;
fPrivateData->fArrowDown = ARROW_UP;
fPrivateData->fArrowDown = B_UP_ARROW;
fPrivateData->fButtonDown = ARROW1;
returnval = scroll_by_value(scrollval, this);
returnval = ScrollByValue(scrollval);
if (returnval == B_OK) {
Draw(buttonrect);
@ -516,9 +539,9 @@ BScrollBar::MouseDown(BPoint pt)
buttonrect.OffsetTo(0, Bounds().Height() - (B_H_SCROLL_BAR_HEIGHT));
if (buttonrect.Contains(pt)) {
scrollval = fSmallStep;
fPrivateData->fArrowDown = ARROW_DOWN;
fPrivateData->fArrowDown = B_DOWN_ARROW;
fPrivateData->fButtonDown = ARROW4;
returnval = scroll_by_value(scrollval, this);
returnval = ScrollByValue(scrollval);
if (returnval == B_OK) {
Draw(buttonrect);
@ -538,9 +561,9 @@ BScrollBar::MouseDown(BPoint pt)
buttonrect.OffsetTo(0, B_H_SCROLL_BAR_HEIGHT + 1);
if (buttonrect.Contains(pt)) {
scrollval = fSmallStep;
fPrivateData->fArrowDown = ARROW_DOWN;
fPrivateData->fArrowDown = B_DOWN_ARROW;
fPrivateData->fButtonDown = ARROW2;
returnval = scroll_by_value(scrollval, this);
returnval = ScrollByValue(scrollval);
if (returnval == B_OK) {
Draw(buttonrect);
@ -559,9 +582,9 @@ BScrollBar::MouseDown(BPoint pt)
buttonrect.OffsetTo(0, Bounds().Height() - ((B_H_SCROLL_BAR_HEIGHT * 2) + 1));
if (buttonrect.Contains(pt)) {
scrollval = -fSmallStep;
fPrivateData->fArrowDown = ARROW_UP;
fPrivateData->fArrowDown = B_UP_ARROW;
fPrivateData->fButtonDown = ARROW3;
returnval = scroll_by_value(scrollval, this);
returnval = ScrollByValue(scrollval);
if (returnval == B_OK) {
Draw(buttonrect);
@ -582,15 +605,15 @@ BScrollBar::MouseDown(BPoint pt)
// TODO: add a repeater thread for large stepping and a call to it
if (pt.y < fPrivateData->fThumbFrame.top)
scroll_by_value(-fLargeStep, this); // do we not check the return value in these two cases like everywhere else?
ScrollByValue(-fLargeStep); // do we not check the return value in these two cases like everywhere else?
else
scroll_by_value(fLargeStep, this);
ScrollByValue(fLargeStep);
} else {
if (buttonrect.Contains(pt)) {
scrollval = -fSmallStep;
fPrivateData->fArrowDown = ARROW_LEFT;
fPrivateData->fArrowDown = B_LEFT_ARROW;
fPrivateData->fButtonDown = ARROW1;
returnval = scroll_by_value(scrollval, this);
returnval = ScrollByValue(scrollval);
if (returnval == B_OK) {
Draw(buttonrect);
@ -609,9 +632,9 @@ BScrollBar::MouseDown(BPoint pt)
buttonrect.OffsetTo(Bounds().Width() - (B_V_SCROLL_BAR_WIDTH), 0);
if (buttonrect.Contains(pt)) {
scrollval = fSmallStep;
fPrivateData->fArrowDown = ARROW_RIGHT;
fPrivateData->fArrowDown = B_RIGHT_ARROW;
fPrivateData->fButtonDown = ARROW4;
returnval = scroll_by_value(scrollval, this);
returnval = ScrollByValue(scrollval);
if (returnval == B_OK) {
Draw(buttonrect);
@ -632,8 +655,8 @@ BScrollBar::MouseDown(BPoint pt)
if (buttonrect.Contains(pt)) {
scrollval = fSmallStep;
fPrivateData->fButtonDown = ARROW2;
fPrivateData->fArrowDown = ARROW_LEFT;
returnval = scroll_by_value(scrollval, this);
fPrivateData->fArrowDown = B_LEFT_ARROW;
returnval = ScrollByValue(scrollval);
if (returnval == B_OK) {
Draw(buttonrect);
@ -653,8 +676,8 @@ BScrollBar::MouseDown(BPoint pt)
if (buttonrect.Contains(pt)) {
scrollval = -fSmallStep;
fPrivateData->fButtonDown = ARROW3;
fPrivateData->fArrowDown = ARROW_RIGHT;
returnval = scroll_by_value(scrollval, this);
fPrivateData->fArrowDown = B_RIGHT_ARROW;
returnval = ScrollByValue(scrollval);
if (returnval == B_OK) {
Draw(buttonrect);
@ -678,9 +701,9 @@ BScrollBar::MouseDown(BPoint pt)
if (pt.x < fPrivateData->fThumbFrame.left)
scroll_by_value(-fLargeStep, this); // do we not check the return value in these two cases like everywhere else?
ScrollByValue(-fLargeStep); // do we not check the return value in these two cases like everywhere else?
else
scroll_by_value(fLargeStep, this);
ScrollByValue(fLargeStep);
}
ValueChanged(fValue);
@ -692,7 +715,7 @@ BScrollBar::MouseDown(BPoint pt)
void
BScrollBar::MouseUp(BPoint pt)
{
fPrivateData->fArrowDown = ARROW_NONE;
fPrivateData->fArrowDown = 0;
fPrivateData->fButtonDown = NOARROW;
fPrivateData->fExitRepeater = true;
@ -743,7 +766,7 @@ BScrollBar::MouseMoved(BPoint pt, uint32 transit, const BMessage *msg)
return;
delta = pt.x - fPrivateData->fMousePos.x;
}
scroll_by_value(delta, this); // do we not check the return value here?
ScrollByValue(delta); // do we not check the return value here?
ValueChanged(fValue);
Invalidate(Bounds());
fPrivateData->fMousePos = pt;
@ -809,46 +832,8 @@ BScrollBar::Draw(BRect updateRect)
SetDrawingMode(B_OP_OVER);
// Draw arrows
BPoint buttonpt(0,0);
if (fOrientation == B_HORIZONTAL) {
fPrivateData->DrawScrollBarButton(this, ARROW_LEFT, buttonpt,
fPrivateData->fButtonDown == ARROW1);
if (fPrivateData->fScrollBarInfo.double_arrows) {
buttonpt.Set(B_V_SCROLL_BAR_WIDTH + 1, 0);
fPrivateData->DrawScrollBarButton(this, ARROW_RIGHT, buttonpt,
fPrivateData->fButtonDown == ARROW2);
buttonpt.Set(Bounds().Width() - ((B_V_SCROLL_BAR_WIDTH * 2) + 1), 0);
fPrivateData->DrawScrollBarButton(this, ARROW_LEFT, buttonpt,
fPrivateData->fButtonDown == ARROW3);
}
buttonpt.Set(Bounds().Width() - (B_V_SCROLL_BAR_WIDTH), 0);
fPrivateData->DrawScrollBarButton(this, ARROW_RIGHT, buttonpt,
fPrivateData->fButtonDown == ARROW4);
} else {
fPrivateData->DrawScrollBarButton(this, ARROW_UP, buttonpt,
fPrivateData->fButtonDown == ARROW1);
if (fPrivateData->fScrollBarInfo.double_arrows) {
buttonpt.Set(0,B_H_SCROLL_BAR_HEIGHT + 1);
fPrivateData->DrawScrollBarButton(this, ARROW_DOWN, buttonpt,
fPrivateData->fButtonDown == ARROW2);
buttonpt.Set(0,Bounds().Height() - ((B_H_SCROLL_BAR_HEIGHT * 2) + 1));
fPrivateData->DrawScrollBarButton(this, ARROW_UP, buttonpt,
fPrivateData->fButtonDown == ARROW3);
}
buttonpt.Set(0,Bounds().Height() - (B_H_SCROLL_BAR_HEIGHT));
fPrivateData->DrawScrollBarButton(this, ARROW_DOWN, buttonpt,
fPrivateData->fButtonDown == ARROW4);
}
DrawButtons();
SetDrawingMode(B_OP_COPY);
// Draw scroll thumb
@ -964,74 +949,408 @@ BScrollBar::operator=(const BScrollBar &)
return *this;
}
void
BScrollBar::DrawArrow(BPoint pos, int32 which, bool pressed)
{
rgb_color no_tint = ui_color(B_PANEL_BACKGROUND_COLOR),
lighten2 = tint_color(no_tint, B_LIGHTEN_2_TINT),
darken1 = tint_color(no_tint, B_DARKEN_1_TINT),
darken2 = tint_color(no_tint, B_DARKEN_2_TINT);
switch (which) {
case B_LEFT_ARROW:
{
if (fMax > 0) {
// Outer bevel
SetHighColor(darken1);
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 3),
BPoint(pos.x + 8.0f, pos.y));
StrokeLine(BPoint(pos.x, pos.y + 4.0f),
BPoint(pos.x, pos.y + 4.0f));
SetHighColor(lighten2);
StrokeLine(BPoint(pos.x + 9.0f, pos.y),
BPoint(pos.x + 9.0f, pos.y + 8.0f));
StrokeLine(BPoint(pos.x + 8.0f, pos.y + 8.0f),
BPoint(pos.x + 1.0f, pos.y + 5.0f));
// Triangle
SetHighColor(darken2);
StrokeLine(BPoint(pos.x + 8.0f, pos.y + 1.0f),
BPoint(pos.x + 8.0f, pos.y + 7.0f));
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 4.0f));
StrokeLine(BPoint(pos.x + 8.0f, pos.y + 1.0f));
// Inner bevel
SetHighColor(darken1);
StrokeLine(BPoint(pos.x + 7.0f, pos.y + 6.0f),
BPoint(pos.x + 5.0f, pos.y + 5.0f));
SetHighColor(lighten2);
StrokeLine(BPoint(pos.x + 7, pos.y + 2.0f),
BPoint(pos.x + 7.0f, pos.y + 5.0f));
StrokeLine(BPoint(pos.x + 3.0f, pos.y + 4.0f),
BPoint(pos.x + 6.0f, pos.y + 3.0f));
} else {
// Triangle
SetHighColor(no_tint);
StrokeLine(BPoint(pos.x + 8.0f, pos.y + 1.0f),
BPoint(pos.x + 8.0f, pos.y + 7.0f));
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 4.0f));
StrokeLine(BPoint(pos.x + 8.0f, pos.y + 1.0f));
}
break;
}
case B_RIGHT_ARROW:
{
if (fMax > 0) {
// Outer bevel
SetHighColor(darken1);
StrokeLine(BPoint(pos.x, pos.y), BPoint(pos.x, pos.y + 8.0f));
StrokeLine(BPoint(pos.x + 1.0f, pos.y),
BPoint(pos.x + 8.0f, pos.y + 3.0f));
SetHighColor(lighten2);
StrokeLine(BPoint(pos.x + 9.0f, pos.y + 4.0f),
BPoint(pos.x + 1.0f, pos.y + 8));
// Triangle
SetHighColor(darken2);
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 1.0f),
BPoint(pos.x + 1.0f, pos.y + 7.0f));
StrokeLine(BPoint(pos.x + 8.0f, pos.y + 4.0f));
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 1.0f));
// Inner bevel
SetHighColor(darken1);
StrokeLine(BPoint(pos.x + 2.0f, pos.y + 6.0f),
BPoint(pos.x + 4.0f, pos.y + 5.0f));
SetHighColor(lighten2);
StrokeLine(BPoint(pos.x + 2.0f, pos.y + 2.0f),
BPoint(pos.x + 2.0f, pos.y + 5.0f));
StrokeLine(BPoint(pos.x + 3.0f, pos.y + 3.0f),
BPoint(pos.x + 6.0f, pos.y + 4.0f));
} else {
// Triangle
SetHighColor(no_tint);
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 1.0f),
BPoint(pos.x + 1.0f, pos.y + 7.0f));
StrokeLine(BPoint(pos.x + 8.0f, pos.y + 4.0f));
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 1.0f));
}
break;
}
case B_UP_ARROW:
{
if (fMax > 0) {
// Outer bevel
SetHighColor(darken1);
StrokeLine(BPoint(pos.x + 3.0f, pos.y + 1), BPoint(pos.x, pos.y + 8.0f));
StrokeLine(BPoint(pos.x + 4.0f, pos.y), BPoint(pos.x + 4.0f, pos.y));
SetHighColor(lighten2);
StrokeLine(BPoint(pos.x, pos.y + 9.0f), BPoint(pos.x + 8.0f, pos.y + 9.0f));
StrokeLine(BPoint(pos.x + 8.0f, pos.y + 8.0f),
BPoint(pos.x + 5.0f, pos.y + 1.0f));
// Triangle
SetHighColor(darken2);
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 8.0f),
BPoint(pos.x + 7.0f, pos.y + 8.0f));
StrokeLine(BPoint(pos.x + 4.0f, pos.y + 1.0f));
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 8.0f));
// Inner bevel
SetHighColor(darken1);
StrokeLine(BPoint(pos.x + 6.0f, pos.y + 7.0f),
BPoint(pos.x + 5.0f, pos.y + 5.0f));
SetHighColor(lighten2);
StrokeLine(BPoint(pos.x + 2, pos.y + 7.0f),
BPoint(pos.x + 5.0f, pos.y + 7.0f));
StrokeLine(BPoint(pos.x + 3.0f, pos.y + 6.0f),
BPoint(pos.x + 4.0f, pos.y + 3.0f));
} else {
// Triangle
SetHighColor(no_tint);
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 8.0f),
BPoint(pos.x + 7.0f, pos.y + 8.0f));
StrokeLine(BPoint(pos.x + 4.0f, pos.y + 1.0f));
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 8.0f));
}
break;
}
case B_DOWN_ARROW:
{
if (fMax > 0) {
// Outer bevel
SetHighColor(darken1);
StrokeLine(BPoint(pos.x, pos.y), BPoint(pos.x + 8.0f, pos.y));
StrokeLine(BPoint(pos.x, pos.y + 1.0f),
BPoint(pos.x + 3.0f, pos.y + 8.0f));
SetHighColor(lighten2);
StrokeLine(BPoint(pos.x + 4.0f, pos.y + 9.0f),
BPoint(pos.x + 8.0f, pos.y + 1));
// Triangle
SetHighColor(darken2);
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 1.0f),
BPoint(pos.x + 7.0f, pos.y + 1.0f));
StrokeLine(BPoint(pos.x + 4.0f, pos.y + 8.0f));
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 1.0f));
// Inner bevel
SetHighColor(darken1);
StrokeLine(BPoint(pos.x + 6.0f, pos.y + 2.0f),
BPoint(pos.x + 5.0f, pos.y + 4.0f));
SetHighColor(lighten2);
StrokeLine(BPoint(pos.x + 2, pos.y + 2.0f),
BPoint(pos.x + 5.0f, pos.y + 2.0f));
StrokeLine(BPoint(pos.x + 4.0f, pos.y + 6.0f),
BPoint(pos.x + 3.0f, pos.y + 3.0f));
} else {
// Triangle
SetHighColor(no_tint);
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 1.0f),
BPoint(pos.x + 7.0f, pos.y + 1.0f));
StrokeLine(BPoint(pos.x + 4.0f, pos.y + 8.0f));
StrokeLine(BPoint(pos.x + 1.0f, pos.y + 1.0f));
}
break;
}
}
}
void
BScrollBar::DrawButtons()
{
const int8 &buttonDown = fPrivateData->fButtonDown;
BRect bounds(Bounds());
rgb_color no_tint = ui_color(B_PANEL_BACKGROUND_COLOR),
lighten2 = tint_color(no_tint, B_LIGHTEN_2_TINT),
darken1 = tint_color(no_tint, B_DARKEN_1_TINT),
darken2 = tint_color(no_tint, B_DARKEN_2_TINT);
if (fOrientation == B_HORIZONTAL) {
DrawButton(BRect(1.0f, 1.0f, 14.0f, bounds.bottom - 1.0f),
buttonDown == ARROW1);
SetHighColor(darken2);
StrokeLine(BPoint(15.0f, 1.0f),
BPoint(15.0f, bounds.bottom - 1.0f));
DrawArrow(BPoint(3.0f, 3.0f), B_LEFT_ARROW);
// Second left button
if (DoubleArrows()) {
DrawButton(BRect(16.0f, 1.0f, 29.0f, bounds.bottom - 1.0f),
buttonDown == ARROW2);
SetHighColor(darken2);
StrokeLine(BPoint(30.0f, 1.0f),
BPoint(30.0f, bounds.bottom - 1.0f));
DrawArrow(BPoint(18.0f, 3.0f), B_RIGHT_ARROW);
}
// Second right button
if (DoubleArrows()) {
SetHighColor(darken2);
StrokeLine(BPoint(bounds.right - 30.0f, 1.0f),
BPoint(bounds.right - 30.0f, bounds.bottom - 1.0f));
DrawButton(BRect(bounds.right - 29.0f, 1.0f,
bounds.right - 16.0f, bounds.bottom - 1.0f),
buttonDown == ARROW3);
DrawArrow(BPoint(bounds.right - 27.0f, 3.0f), B_LEFT_ARROW);
}
// Right button
SetHighColor(darken2);
StrokeLine(BPoint(bounds.right - 15.0f, 1.0f),
BPoint(bounds.right - 15.0f, bounds.bottom - 1.0f));
DrawButton(BRect(bounds.right - 14.0f, 1.0f,
bounds.right - 1.0f, bounds.bottom - 1.0f),
buttonDown == ARROW4);
DrawArrow(BPoint(bounds.right - 12.0f, 3.0f), B_RIGHT_ARROW);
} else if (fOrientation == B_VERTICAL) {
// Top button
DrawButton(BRect(1.0f, 1.0f, bounds.right - 1.0f, 14.0f),
buttonDown == ARROW1);
SetHighColor(darken2);
StrokeLine(BPoint(1.0f, 15.0f),
BPoint(bounds.right - 1.0f, 15.0f));
DrawArrow(BPoint(3.0f, 3.0f), B_UP_ARROW,
buttonDown == ARROW1);
// Second top button
if (DoubleArrows()) {
DrawButton(BRect(1.0f, 16.0f, bounds.right - 1.0f, 29.0f),
buttonDown == ARROW2);
SetHighColor(darken2);
StrokeLine(BPoint(1.0f, 30.0f),
BPoint(bounds.right - 1.0f, 30.0f));
DrawArrow(BPoint(3.0f, 18.0f), B_DOWN_ARROW,
buttonDown == ARROW2);
}
// Second bottom button
if (DoubleArrows()) {
SetHighColor(darken2);
StrokeLine(BPoint(1.0f, bounds.bottom - 30.0f),
BPoint(bounds.right - 1.0f, bounds.bottom - 30.0f));
DrawButton(BRect(1.0f, bounds.bottom - 29.0f,
bounds.right - 1.0f, bounds.bottom - 16.0f),
buttonDown == ARROW3);
DrawArrow(BPoint(3.0f, bounds.bottom - 27.0f), B_UP_ARROW,
buttonDown == ARROW3);
}
// bottom button
SetHighColor(darken2);
StrokeLine(BPoint(1.0f, bounds.bottom - 15.0f),
BPoint(bounds.right - 1.0f, bounds.bottom - 15.0f));
DrawButton(BRect(1.0f, bounds.bottom - 14.0f,
bounds.right - 1.0f, bounds.bottom - 1.0f),
buttonDown == ARROW4);
DrawArrow(BPoint(3.0f, bounds.bottom - 12.0f), B_DOWN_ARROW,
buttonDown == ARROW4);
}
}
void
BScrollBar::DrawButton(BRect frame, bool pressed)
{
rgb_color no_tint = ui_color(B_PANEL_BACKGROUND_COLOR),
lighten2 = tint_color(no_tint, B_LIGHTEN_2_TINT),
lightenmax = tint_color(no_tint, B_LIGHTEN_MAX_TINT),
darken1 = tint_color(no_tint, B_DARKEN_1_TINT),
darken2 = tint_color(no_tint, B_DARKEN_2_TINT);
if (fMax > 0) {
if (pressed) {
SetHighColor(128, 128, 128);
FillRect(frame);
}
SetHighColor(lighten2);
StrokeLine(BPoint(frame.left, frame.bottom - 1.0f),
BPoint(frame.left, frame.top));
StrokeLine(BPoint(frame.right - 1.0f, frame.top));
SetHighColor(darken1);
StrokeLine(BPoint(frame.right, frame.top + 1.0f),
BPoint(frame.right, frame.bottom));
StrokeLine(BPoint(frame.left + 1.0f, frame.bottom));
} else {
SetHighColor(lighten2);
FillRect(frame);
SetHighColor(lightenmax);
StrokeLine(BPoint(frame.left, frame.bottom - 1.0f),
BPoint(frame.left, frame.top));
StrokeLine(BPoint(frame.right - 1.0f, frame.top));
SetHighColor(no_tint);
StrokeLine(BPoint(frame.right, frame.top + 1.0f),
BPoint(frame.right, frame.bottom));
StrokeLine(BPoint(frame.left + 1.0f, frame.bottom));
}
}
bool
BScrollBar::DoubleArrows() const
{
if (!fPrivateData->fScrollBarInfo.double_arrows)
return false;
if (fOrientation == B_HORIZONTAL)
return Bounds().Width() > 16 * 4 + fPrivateData->fScrollBarInfo.min_knob_size * 2;
else
return Bounds().Height() > 16 * 4 + fPrivateData->fScrollBarInfo.min_knob_size * 2;
}
/*
scroll_by_value: increment or decrement scrollbar's value by a certain amount.
ScrollByValue: increment or decrement scrollbar's value by a certain amount.
Returns B_OK if everthing went well and the caller is to redraw the scrollbar,
B_ERROR if the caller doesn't need to do anything, or
B_BAD_VALUE if data is NULL.
*/
status_t scroll_by_value(float valueByWhichToScroll, BScrollBar *bar)
status_t
BScrollBar::ScrollByValue(float value)
{
if(!bar)
return B_BAD_VALUE;
if(valueByWhichToScroll==0)
if (value == 0)
return B_ERROR;
if(bar->fOrientation==B_VERTICAL)
{
if(valueByWhichToScroll<0)
{
if(bar->fValue + valueByWhichToScroll >= bar->fMin)
{
bar->fValue += valueByWhichToScroll;
if(bar->fTarget)
bar->fTarget->ScrollBy(0,valueByWhichToScroll);
bar->fPrivateData->fThumbFrame.OffsetBy(0,valueByWhichToScroll);
bar->fValue--;
if (fOrientation == B_VERTICAL) {
if (value < 0) {
if (fValue + value >= fMin) {
fValue += value;
if (fTarget)
fTarget->ScrollBy(0, value);
fPrivateData->fThumbFrame.OffsetBy(0, value);
fValue--;
return B_OK;
}
// fall through to return B_ERROR
} else {
if (fValue + value <= fMax) {
fValue += value;
if (fTarget)
fTarget->ScrollBy(0, value);
fPrivateData->fThumbFrame.OffsetBy(0, value);
fValue++;
return B_OK;
}
// fall through to return B_ERROR
}
else
{
if(bar->fValue + valueByWhichToScroll <= bar->fMax)
{
bar->fValue += valueByWhichToScroll;
if(bar->fTarget)
bar->fTarget->ScrollBy(0,valueByWhichToScroll);
bar->fPrivateData->fThumbFrame.OffsetBy(0,valueByWhichToScroll);
bar->fValue++;
} else {
if (value < 0) {
if (fValue + value >= fMin) {
fValue += value;
if (fTarget)
fTarget->ScrollBy(value, 0);
fPrivateData->fThumbFrame.OffsetBy(value, 0);
fValue--;
return B_OK;
}
// fall through to return B_ERROR
}
}
else
{
if(valueByWhichToScroll<0)
{
if(bar->fValue + valueByWhichToScroll >= bar->fMin)
{
bar->fValue += valueByWhichToScroll;
if(bar->fTarget)
bar->fTarget->ScrollBy(valueByWhichToScroll,0);
bar->fPrivateData->fThumbFrame.OffsetBy(valueByWhichToScroll,0);
bar->fValue--;
return B_OK;
}
// fall through to return B_ERROR
}
else
{
if(bar->fValue + valueByWhichToScroll <= bar->fMax)
{
bar->fValue += valueByWhichToScroll;
if(bar->fTarget)
bar->fTarget->ScrollBy(valueByWhichToScroll,0);
bar->fPrivateData->fThumbFrame.OffsetBy(valueByWhichToScroll,0);
bar->fValue++;
} else {
if (fValue + value <= fMax) {
fValue += value;
if (fTarget)
fTarget->ScrollBy(value, 0);
fPrivateData->fThumbFrame.OffsetBy(value, 0);
fValue++;
return B_OK;
}
// fall through to return B_ERROR
@ -1085,102 +1404,3 @@ control_scrollbar(scroll_bar_info *info, BScrollBar *bar)
return B_OK;
}
void
BScrollBar::Private::DrawScrollBarButton(BScrollBar *owner, arrow_direction direction,
const BPoint &offset, bool down)
{
// Another hack for code size
BRect r(offset.x, offset.y, offset.x + 14,offset.y + 14);
rgb_color c = ui_color(B_PANEL_BACKGROUND_COLOR);
rgb_color light, dark, normal,arrow,arrow2;
if (down) {
light = tint_color(c, B_DARKEN_3_TINT);
arrow2 = dark = tint_color(c, B_LIGHTEN_MAX_TINT);
normal = c;
arrow = tint_color(c, B_DARKEN_MAX_TINT);
} else {
bool use_enabled_colors = fEnabled;
// Add a usability perk - disable buttons if they would not do anything -
// like a left arrow if the value==fMin
if ((direction == ARROW_LEFT || direction == ARROW_UP) &&
(owner->fValue == owner->fMin) )
use_enabled_colors = false;
else if ((direction == ARROW_RIGHT || direction == ARROW_DOWN) &&
(owner->fValue == owner->fMax) )
use_enabled_colors = false;
if (use_enabled_colors) {
arrow2 = light = tint_color(c, B_LIGHTEN_MAX_TINT);
dark = tint_color(c, B_DARKEN_3_TINT);
normal = c;
arrow = tint_color(c, B_DARKEN_MAX_TINT);
} else {
arrow2 = light = tint_color(c, B_LIGHTEN_1_TINT);
dark = tint_color(c, B_DARKEN_1_TINT);
normal = c;
arrow = tint_color(c, B_DARKEN_1_TINT);
}
}
BPoint tri1, tri2, tri3;
switch (direction) {
case ARROW_LEFT:
{
tri1.Set(r.left + 3, (r.top + r.bottom) /2 );
tri2.Set(r.right - 3, r.top + 3);
tri3.Set(r.right - 3, r.bottom - 3);
break;
}
case ARROW_RIGHT:
{
tri1.Set(r.left + 3, r.bottom - 3);
tri2.Set(r.left + 3, r.top + 3);
tri3.Set(r.right-3, (r.top + r.bottom) / 2);
break;
}
case ARROW_UP:
{
tri1.Set(r.left + 3, r.bottom - 3);
tri2.Set((r.left + r.right) / 2, r.top + 3);
tri3.Set(r.right - 3, r.bottom - 3);
break;
}
default:
{
tri1.Set(r.left + 3, r.top + 3);
tri2.Set(r.right - 3, r.top + 3);
tri3.Set((r.left + r.right) / 2, r.bottom - 3);
break;
}
}
r.InsetBy(1, 1);
owner->SetHighColor(normal);
owner->FillRect(r);
owner->SetHighColor(arrow);
owner->FillTriangle(tri1, tri2, tri3);
r.InsetBy(-1, -1);
owner->SetHighColor(dark);
owner->StrokeLine(r.LeftBottom(), r.RightBottom());
owner->StrokeLine(r.RightTop(), r.RightBottom());
owner->StrokeLine(tri2, tri3);
owner->StrokeLine(tri1, tri3);
owner->SetHighColor(light);
owner->StrokeLine(r.LeftTop(), r.RightTop());
owner->StrokeLine(r.LeftTop(), r.LeftBottom());
owner->SetHighColor(arrow2);
owner->StrokeLine(tri1, tri2);
}