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quicktable.cpp
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quicktable.cpp
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/* gSAFE - LIB
general Sql dAtabase FrontEnd
http://hyperprog.com/gsafe/
(C) 2005-2024 Péter Deák ([email protected])
License: Apache 2.0
quicktable.cpp
*/
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <math.h>
#include "data.h"
#include "dm.h"
#include "dmext.h"
#include "ftypes.h"
#include "gui.h"
#include "dconsole.h"
#include "builder.h"
#include "guiext.h"
#include "quicktable.h"
#include <QtCore>
#include <QtGui>
#include <QtWidgets>
/////////////////////////////////////////////////////////////////////////////////
/// HQuickTable //////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////
#define CELLHMARGIN 3
#define CELLVMARGIN 3
#define TMARGIN 10
#define LMARGIN 10
#define BARW 12
#define BUTTH 18
#define DEFAULT_HEADCOLOR QColor(244,180,200)
#define DEFAULT_HEADCOLOR_CURSOR QColor(250,100,120)
#define DEFAULT_CURSORCOLOR QColor(140,140,230)
#define DEFAULT_BGCOLOR QColor(240,240,240)
bool HQuickTable::staticinit = false;
QPixmap *HQuickTable::pix_up = NULL;
QPixmap *HQuickTable::pix_down = NULL;
QPixmap *HQuickTable::pix_asc = NULL;
QPixmap *HQuickTable::pix_desc = NULL;
QPixmap *HQuickTable::pix_asc2 = NULL;
QPixmap *HQuickTable::pix_desc2 = NULL;
HQuickTable::HQuickTable(QWidget *parent)
:QFrame(parent)
{
start = NULL;
end = NULL;
top = NULL;
cur = NULL;
curc = 0;
asc = true;
query_cursor = NULL;
col_scroll = 0;
lastkey="";
inscroll = false;
oldw = 0;
oldh = 0;
old_col_scroll = 0;
precolor.clear();
keycolumn = -1;
keycolumn2 = -1;
cachedElements.clear();
cacheLimit = 20; //An initial size. It increased automatically if necessary
if(!staticinit)
{
staticinit = true;
pix_up = new QPixmap(":/GSAFEPIXMAPS/image_up.png");
pix_down = new QPixmap(":/GSAFEPIXMAPS/image_down.png");
pix_asc = new QPixmap(":/GSAFEPIXMAPS/image_ascend.png");
pix_desc = new QPixmap(":/GSAFEPIXMAPS/image_descend.png");
pix_asc2 = new QPixmap(":/GSAFEPIXMAPS/image_ascend2.png");
pix_desc2= new QPixmap(":/GSAFEPIXMAPS/image_descend2.png");
}
setSizePolicy(QSizePolicy(QSizePolicy::Expanding,QSizePolicy::Expanding));
setMidLineWidth(100);
setMinimumHeight(100);
setFocusPolicy(Qt::StrongFocus);
setFocus();
color_cursor = DEFAULT_CURSORCOLOR;
color_header = DEFAULT_HEADCOLOR;
color_header_cursor = DEFAULT_HEADCOLOR_CURSOR;
color_background = DEFAULT_BGCOLOR;
QPalette palette;
palette.setColor(QPalette::Window,color_background);
setPalette(palette);
setAutoFillBackground(true);
fm = new QFontMetrics( QApplication::font() );
clear();
}
void HQuickTable::setBackgroundColor(QColor c)
{
color_background = c;
QPalette palette;
palette.setColor(QPalette::Window,color_background);
setPalette(palette);
setAutoFillBackground(true);
}
int HQuickTable::setHeadTexts(QStringList h)
{
head = h;
return 0;
};
HQuickTable::~HQuickTable(void)
{
sdebug("*** HQuickTable::~HQuickTable ***\nDestroy HQuickTable, delete items...");
clear();
delete fm;
sdebug("*** HQuickTable::~HQuickTable ***END");
}
QString HQuickTable::currentKey(void)
{
if(cur == NULL)
return "";
return cur->key;
}
QString HQuickTable::topKey(void)
{
if(top == NULL)
return "";
return top->key;
}
int HQuickTable::clear()
{
HQuickTableElement *tmp;
fulshDrawingCache();
number = 0;
seek = "";
head.clear();
colc.clear();
colw.clear();
spec_sort.clear();
asc = false;
rowh = fm->height();
//Freeing list
cacheMutex.lock();
tmp = end;
while(tmp != NULL)
{
tmp = tmp->prev;
delete end;
end = tmp;
}
cacheMutex.unlock();
start = NULL;
top = NULL;
end = NULL;
cur = NULL;
return 0;
}
void HQuickTable::setColumnColor(int col,QColor c)
{
if(col >= (int)colc.size())
{
precolor[col] = c;
return;
}
precolor[col] = c;
colc[col] = c;
}
int HQuickTable::addElement(HQuickTableElement *e)
{
int i,l;
e->index = number;
//add to list, graphical analysis...
if(start == NULL) //there is no element yet
{
if(head.size() > e->size())
{
QString errortxt="You try to add smaller record than previous. (Contains less cell. Why? Forget separate signals? \"|\"?) ";
sdebug(errortxt);
return 0;
}
cur = top = start = end = e;
for(i=0;i<e->size();++i)
{
colw.push_back( fm->horizontalAdvance((*e)[i]) );
colc.push_back( precolor.contains(i) ? precolor[i] : QColor( (100+i*25)>255 ? 255 : (100+i*25) ,200-i*5,180 ));
}
rowh = fm->height();
while(head.size() < colw.size())
head.push_back("");
for(i=0;i<(int)head.size();++i)
{
l = fm->horizontalAdvance(head[i]) + BARW; //because the sort indicator
if(l > colw[i])
colw[i] = l;
}
}
else //insert to the end
{
end->next = e;
e->prev = end;
end = e;
for(i=0;i<e->size();++i)
{
l = fm->horizontalAdvance((*e)[i]) + BARW; //because the sort indicator
if(l > colw[i])
colw[i] = l;
}
}
++number;
return 0;
}
int HQuickTable::removeAllElementByKey(QString key)
{
HQuickTableElement *tmp = NULL;
int deleteditems;
if(start == NULL)
return 0; // no element
fulshDrawingCache();
deleteditems = 0;
// HQuickTableElement *start,*end,*top,*cur,*query_cursor;
HQuickTableElement *seek = start;
while(seek != NULL)
{
if(seek->key == key)
{ //Found->erase
//================================//
if(seek->prev != NULL)
seek->prev->next = seek->next;
if(seek->next != NULL)
seek->next->prev = seek->prev;
if(start == seek)
start = seek->next;
if(end == seek)
end = seek->prev;
if(top == seek)
{
if (seek->prev != NULL) top = seek->prev;
else if(seek->next != NULL) top = seek->next;
else top = start;
}
if(cur == seek)
{
if (seek->prev != NULL) cur = seek->prev;
else if(seek->next != NULL) cur = seek->next;
else cur = start;
}
query_cursor = start;
tmp = seek->next;
cacheMutex.lock();
delete seek;
cacheMutex.unlock();
seek = tmp;
number--;
deleteditems++;
//================================//
continue;
}
seek = seek->next;
}
update();
return deleteditems;
}
void HQuickTable::setSpecSort(int col,QString specsortname)
{
spec_sort[col] = specsortname;
}
int HQuickTable::setCurrentElement(QString c,QString t)
{
HQuickTableElement *topm=start,*step=start;
while(step != NULL)
{
if(step->key == t)
topm = step;
if(step->key == c)
{
cur = step;
if( height()-(rowh) > (cur->index - topm->index)*(rowh+2*CELLVMARGIN)+2*rowh) //this will be the top
top = topm;
else
top = cur;
update();
return 1;
}
step = step->next;
}
return 0;
}
int HQuickTable::setCurrentElement(int index)
{
HQuickTableElement *step=start;
while(step != NULL)
{
if(step->index == index)
{
top = cur = step;
update();
return 1;
}
step = step->next;
}
return 0;
}
int HQuickTable::setTopElement(int index)
{
HQuickTableElement *step=start;
while(step != NULL)
{
if(step->index == index)
{
top = step;
update();
return 1;
}
step = step->next;
}
return 0;
}
HQuickTableElement * HQuickTable::topElement(void)
{
if(top == NULL)
return NULL;
return top;
}
HQuickTableElement * HQuickTable::currentElement(void)
{
if(cur == NULL)
return NULL;
return cur;
}
bool HQuickTable::stepUp(void)
{
bool fresh;
if(cur == NULL)
return false;
fresh = false;
if(cur->prev != NULL)
{
cur = cur->prev;
fresh = true;
}
//if we need scroll...
if(top->prev == cur)
{
top = cur;
fresh = true;
}
else if(abs(top->index - cur->index) > (showrow+2))
{
top = cur;
fresh = true;
}
return fresh;
}
bool HQuickTable::stepDown(void)
{
bool fresh;
if(cur == NULL)
return false;
fresh = false;
if(cur->next != NULL)
{
cur = cur->next;
fresh = true;
}
//if we need scroll...
if(cur->index < top->index) //out on top
{
top = cur;
fresh = true;
}
while(height()-(rowh+4*CELLVMARGIN+12) < (cur->index - top->index)*(rowh+2*CELLVMARGIN)+2*rowh)
{
if(top->next != NULL)
{
top = top->next;
fresh = true;
}
else
break;
}
return fresh;
}
void HQuickTable::wheelEvent(QWheelEvent *e)
{
int d;
d = e->angleDelta().y();
if(d < 0)
{
if(stepDown())
update();
return;
}
else
{
if(stepUp())
update();
return;
}
}
int HQuickTable::cursorToBegin(void)
{
seek = "";
top = cur = start;
update();
return 0;
}
int HQuickTable::cursorToEnd(void)
{
seek = "";
top = cur = end;
update();
return 0;
}
void HQuickTable::keyPressEvent(QKeyEvent *e)
{
int i;
bool fresh;
fresh = false;
if(e->modifiers() == Qt::ControlModifier)
{
QFrame::keyPressEvent(e);
return;
}
if(e->key() == Qt::Key_Down)
{
seek = "";
if(stepDown())
update();
return;
}
if(e->key() == Qt::Key_Up)
{
seek = "";
if(stepUp())
update();
return;
}
if(e->key() == Qt::Key_PageUp)
{
seek = "";
for(i=0;i < showrow-2;++i)
if(stepUp())
fresh = true;
if(fresh)
update();
return;
}
if(e->key() == Qt::Key_PageDown)
{
seek = "";
for(i=0;i < showrow-2;++i)
if(stepDown())
fresh = true;
if(fresh)
update();
return;
}
if(e->key() == Qt::Key_Home)
{
seek = "";
top = cur = start;
update();
return;
}
if(e->key() == Qt::Key_End)
{
seek = "";
top = cur = end;
update();
return;
}
if(e->key() == Qt::Key_Left)
{
seek = "";
if(curc > 0)
{
--curc;
//do horizontal scroll if necessary
if(col_scroll > curc)
col_scroll = curc;
update();
}
return;
}
if(e->key() == Qt::Key_Right)
{
seek = "";
if(curc+1 < (int)colw.size())
{
++curc;
//do horizontal scroll if necessary
bool run;
int sum;
do
{
sum = 0;
run = false;
for(i=col_scroll;i<=curc;++i)
sum += colw[i]+2*CELLHMARGIN;
if(sum > (width()-(LMARGIN*2)))
{
++col_scroll;
run = true;
}
} while(run);
update();
}
return;
}
if(e->key() == Qt::Key_Return || (e->key() == Qt::Key_Space && seek.isEmpty()))
{
seek = "";
emit activateItem(cur->key);
return;
}
//If the seek is empty I will pass the Esc. Probably it will be an exit.
if(seek.isEmpty() && e->key() == Qt::Key_Escape)
{
QFrame::keyPressEvent(e);
return;
}
//If there is some seek text, I'll delete it when esc pressed. Every time delete the seek text if delete pressed.
if((!seek.isEmpty() && e->key() == Qt::Key_Escape) || (e->key() == Qt::Key_Delete))
{
seek = "";
update();
return;
}
if(e->key() == Qt::Key_Backspace)
{
seek.remove(QRegularExpression(".$"));
sdebug("seek: "+seek);
return;
}
if(e->key() == Qt::Key_F3)
{
HQuickTableElement *t;
for(t = cur ; t != NULL ; t=t->next)
{
if(((*t->rows)[curc]).startsWith(seek))
{
top = cur = t;
}
}
update();
return;
}
if(e->key() == Qt::Key_F5)
{
fulshDrawingCache();
update();
return;
}
//Click a mouse button
HQuickTableElement *t;
seek.append(e->text());
sdebug("seek: "+seek);
for(t = start ; t != NULL ; t=t->next)
{
if(((*t->rows)[curc]).startsWith(seek))
{
//top = cur = t;
cur = t;
//Check the visibility of the current element, if needs I will recalc the top element
if( cur->index < top->index ||
height()-(rowh+4*CELLVMARGIN+12) < (cur->index - top->index)*(rowh+2*CELLVMARGIN)+2*rowh) //ok lesz a megadott top
top = cur;
update();
return;
}
}
}
// Parameters: Lower limit, upper limit, value
int withinBorders(int min,int max,int val)
{
if(min > val)
return min;
if(max < val)
return max;
return val;
}
bool HQuickTable::inX(int a,int b,QMouseEvent *e)
{
return (a < e->position().x() && b > e->position().x()) ||
(b < e->position().x() && a > e->position().x());
}
bool HQuickTable::inY(int a,int b,QMouseEvent *e)
{
return (a < e->position().y() && b > e->position().y()) ||
(b < e->position().y() && a > e->position().y());
}
HQuickTable::PointLocatorResult HQuickTable::pointLocator(QMouseEvent *e)
{
int x,y;
int stepx;
HQuickTableElement *stepy;
if(cur == NULL)
return PointLocatorResult(false,false);
//out from everything
if(!inX(0,width(),e) || !inY(0,height(),e))
{
sdebug("==CLICK=> Outer click (do nothing)");
return PointLocatorResult(false,false);
}
//left click from the first cell, is scroll the column to back
if(inX(0,LMARGIN+CELLHMARGIN,e))
{
sdebug("==CLICK=> Left from the first cell (backscroll the columns)");
if(col_scroll == 0)
return PointLocatorResult(false,false);
curc = --col_scroll;
return PointLocatorResult(true,false);
}
for(stepx=col_scroll,x=LMARGIN;
(x<(width()-(LMARGIN+BARW)));
x+=(colw[stepx]+2*CELLHMARGIN+plusw),stepx++)
{
if(stepx >= colw.size())
break;
if(inX(x+CELLHMARGIN,x+colw[stepx]+plusw+CELLHMARGIN*2,e) && inY(TMARGIN+CELLVMARGIN,TMARGIN+rowh+CELLHMARGIN,e))
{
sdebug("==CLICK=> Column header (sorting)");
sdebug(QString("Click header: column %1").arg(stepx));
sort(stepx);
return PointLocatorResult(true,false);
}
}
for(stepy=top,y=TMARGIN+rowh+4*CELLVMARGIN;
(y < height()-TMARGIN) && (stepy != NULL);
y+=(rowh+2*CELLVMARGIN),stepy=stepy->next)
if(inY(y,y+rowh+2*CELLHMARGIN,e))
{
for(stepx=col_scroll,x=LMARGIN;
(x<(width()-(LMARGIN+BARW)));
x+=(colw[stepx]+2*CELLHMARGIN+plusw),stepx++)
{
if(stepx >= colw.size())
break;
if(inX(x,x+colw[stepx]+plusw+CELLHMARGIN*2,e))
{
sdebug("==CLICK=> To Cell (Marking)");
if(cur != stepy || curc != stepx)
{
cur = stepy;
curc = stepx;
return PointLocatorResult(true,true);
}
return PointLocatorResult(false,true);
}
}
}
sdebug("==Click=> Nothing targetted, don't hit anything (exiting)");
return PointLocatorResult(false,false);
}
void HQuickTable::mouseMoveEvent(QMouseEvent *e)
{
int nTH;
seek = "";
//scrolling
if( inscroll || inX(width()-BARW-LMARGIN+2,width(),e))
{
if( !inscroll && inY(8,8+BUTTH,e))
{
if(stepUp())
update();
return;
}
if( !inscroll && inY(height()-(BUTTH+8),height()-8,e))
{
if(stepDown())
update();
return;
}
nTH = ( (number-showrow+2) * (withinBorders(0,height()-(8+BUTTH),e->position().y()-(8+BUTTH))) ) / (height()-8*2-2*BUTTH);
setTopElement(nTH);
inscroll = true;
return;
}
if(!inscroll && pointLocator(e).need_update)
update();
}
void HQuickTable::mouseReleaseEvent(QMouseEvent *e)
{
inscroll = false;
if(e->button() == Qt::RightButton)
{
sdebug("HQuickTable::mouseReleaseEvent RIGHT button!");
if(pointLocator(e).click_on_cell)
if(last_right_clicked == cur->key)
{
sdebug("Emitting signal!");
mouseRightClickPosX = e->position().x();
mouseRightClickPosY = e->position().y();
emit alternateActivateItem(cur->key);
}
return;
}
}
void HQuickTable::mousePressEvent(QMouseEvent *e)
{
seek = "";
mouseMoveEvent(e);
if(e->button() == Qt::RightButton)
if(pointLocator(e).click_on_cell)
last_right_clicked = cur->key;
}
void HQuickTable::mouseDoubleClickEvent(QMouseEvent *e)
{
seek = "";
if(inX(width()-BARW-LMARGIN+2,width(),e))
{
mouseMoveEvent(e);
return;
}
if(pointLocator(e).click_on_cell)
emit activateItem(cur->key);
}
int HQuickTable::ch_dropchar(QString s)
{
while(!s.at(0).isDigit())
s = s.mid(1);
sdebug(s);
return s.toInt();
}
int HQuickTable::ch_number(QString s)
{
return s.toInt();
}
double HQuickTable::ch_float(QString s)
{
return s.toDouble();
}
bool HQuickTable::ch(bool m,HQuickTableElement *a,HQuickTableElement *b)
{
bool asc = this->asc;
bool asc2 = this->asc2;
if(m)
{
asc = !asc;
asc2 = !asc2;
}
if(sortmode == 1) //Dropchar sort mode
{
if(ch_dropchar(a->getCVal(keycolumn).toLocal8Bit()) > ch_dropchar(b->getCVal(keycolumn).toLocal8Bit()))
return (asc ? true : false);
if(ch_dropchar(a->getCVal(keycolumn).toLocal8Bit()) < ch_dropchar(b->getCVal(keycolumn).toLocal8Bit()))
return (asc ? false : true );
if(keycolumn2 == -1)
return true;
if(ch_dropchar(a->getCVal(keycolumn2).toLocal8Bit()) > ch_dropchar(b->getCVal(keycolumn2).toLocal8Bit()))
return (asc2 ? true : false);
if(ch_dropchar(a->getCVal(keycolumn2).toLocal8Bit()) < ch_dropchar(b->getCVal(keycolumn2).toLocal8Bit()))
return (asc2 ? false : true );
return true;
}
if(sortmode == 2) //Number sort mode
{
if(ch_number(a->getCVal(keycolumn).toLocal8Bit()) > ch_number(b->getCVal(keycolumn).toLocal8Bit()))
return (asc ? true : false);
if(ch_number(a->getCVal(keycolumn).toLocal8Bit()) < ch_number(b->getCVal(keycolumn).toLocal8Bit()))
return (asc ? false : true );
if(keycolumn2 == -1)
return true;
if(ch_number(a->getCVal(keycolumn2).toLocal8Bit()) > ch_number(b->getCVal(keycolumn2).toLocal8Bit()))
return (asc2 ? true : false);
if(ch_number(a->getCVal(keycolumn2).toLocal8Bit()) < ch_number(b->getCVal(keycolumn2).toLocal8Bit()))
return (asc2 ? false : true );
return true;
}
if(sortmode == 3) //Float sort mode
{
if(ch_float(a->getCVal(keycolumn).toLocal8Bit()) > ch_float(b->getCVal(keycolumn).toLocal8Bit()))
return (asc ? true : false);
if(ch_float(a->getCVal(keycolumn).toLocal8Bit()) < ch_float(b->getCVal(keycolumn).toLocal8Bit()))
return (asc ? false : true );
if(keycolumn2 == -1)
return true;
if(ch_float(a->getCVal(keycolumn2).toLocal8Bit()) > ch_float(b->getCVal(keycolumn2).toLocal8Bit()))
return (asc2 ? true : false);
if(ch_float(a->getCVal(keycolumn2).toLocal8Bit()) < ch_float(b->getCVal(keycolumn2).toLocal8Bit()))
return (asc2 ? false : true );
return true;
}
if(QString::localeAwareCompare(a->getCVal(keycolumn),b->getCVal(keycolumn)) > 0 )
return (asc ? true : false);
if(QString::localeAwareCompare(a->getCVal(keycolumn),b->getCVal(keycolumn)) < 0 )
return (asc ? false : true );
if(keycolumn2 == -1)
return true;
if(QString::localeAwareCompare(a->getCVal(keycolumn2),b->getCVal(keycolumn2)) > 0)
return (asc2 ? true : false);
if(QString::localeAwareCompare(a->getCVal(keycolumn2),b->getCVal(keycolumn2)) < 0)
return (asc2 ? false : true );
return true;
}
void HQuickTable::q_sort(void)
{
HQuickTableElementPair *t;
if(start == NULL)
return;
q_sort_stack = new QStack<HQuickTableElementPair *> ();
q_sort_stack->clear();
q_sort_stack->push(new HQuickTableElementPair(start,end)); //Verem inicializalas a starthoz
while( ! q_sort_stack->isEmpty() )
{
q_sort_run( (t=q_sort_stack->pop()) );
delete t;
}
fulshDrawingCache();
}
//Quick sort algoritmus
void HQuickTable::q_sort_run(HQuickTableElementPair *p)
{
int i;
HQuickTableElement *m;
HQuickTableElement *left=p->left;
HQuickTableElement *right=p->right;
//it will be the middle element
i = (int) ((p->left->index+p->right->index) / 2);
for(m=p->left;m->index != i && m != p->right ;m=m->next) ;
while(left->index < right->index)
{
while(ch(true,left,m) && (left->index < m->index))
left = left->next;
while(ch(false,right,m) && (right->index > m->index))
right = right->prev;
if(left != right)
{
if(m == left)
m= right;
else if(m == right)
m = left;
right->swapWith(left);
}
}
if(p->left->index < m->index)
q_sort_stack->push(new HQuickTableElementPair(p->left,m->prev));
if(p->right->index > m->index)
q_sort_stack->push(new HQuickTableElementPair(m->next,p->right));
}
void HQuickTable::sort(int keycol)
{
if(colw.size() == 0 )
return;
if(keycolumn == keycol)
{
if(asc) asc=false;
else asc=true;
}
else
{
keycolumn2 = keycolumn;
asc2 = asc;
asc = true;
keycolumn = keycol;
}
sortmode = 0;
if(spec_sort.contains(keycol))
{
if(spec_sort[keycol] == "string")
sortmode = 0;
if(spec_sort[keycol] == "dropchar")
sortmode = 1;
if(spec_sort[keycol] == "number")