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/** \file
* \brief iupmatrix column resize
*
* See Copyright Notice in "iup.h"
*/
/**************************************************************************/
/* Interactive Column Resize Functions and WIDTH/HEIGHT change */
/**************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include "iup.h"
#include "iupcbs.h"
#include <cd.h>
#include "iup_object.h"
#include "iup_attrib.h"
#include "iup_str.h"
#include "iup_stdcontrols.h"
#include "iupmat_def.h"
#include "iupmat_colres.h"
#include "iupmat_draw.h"
#define IMAT_COLRES_TOL 3
#define IMAT_RESIZE_COLOR 0x666666L
/* Verify if the mouse is in the intersection between two of column titles,
if so the resize is started */
int iupMatrixColResStart(Ihandle* ih, int x, int y)
{
if (ih->data->lines.sizes[0] &&
y < ih->data->lines.sizes[0] &&
iupAttribGetBoolean(ih, "RESIZEMATRIX"))
{
int x_col, col;
/* Check if is the column of titles */
x_col = ih->data->columns.sizes[0];
if (abs(x_col-x) < IMAT_COLRES_TOL)
{
ih->data->colres_drag_col_start_x = x;
ih->data->colres_dragging = 1;
ih->data->colres_drag_col_last_x = -1;
ih->data->colres_drag_col = 0;
return 1;
}
else
{
/* find the column */
x_col -= ih->data->columns.first_offset;
for(col = ih->data->columns.first; col <= ih->data->columns.last; col++)
{
x_col += ih->data->columns.sizes[col];
if (abs(x_col-x) < IMAT_COLRES_TOL)
{
ih->data->colres_drag_col_start_x = x;
ih->data->colres_dragging = 1;
ih->data->colres_drag_col_last_x = -1;
ih->data->colres_drag_col = col;
return 1;
}
}
}
}
return 0;
}
void iupMatrixColResFinish(Ihandle* ih, int x)
{
char str[100];
int delta = x - ih->data->colres_drag_col_start_x;
int width = ih->data->columns.sizes[ih->data->colres_drag_col] + delta;
if (width < 0)
width = 0;
/* delete feedback */
if (ih->data->colres_drag_col_last_x != -1)
{
int y1 = ih->data->lines.sizes[0]; /* from the bottom of the line of titles */
int y2 = ih->data->h-1; /* to the bottom of the matrix */
cdCanvasWriteMode(ih->data->cdcanvas, CD_XOR);
cdCanvasForeground(ih->data->cdcanvas, IMAT_RESIZE_COLOR);
cdCanvasLine(ih->data->cdcanvas, ih->data->colres_drag_col_last_x, iupMATRIX_INVERTYAXIS(ih, y1),
ih->data->colres_drag_col_last_x, iupMATRIX_INVERTYAXIS(ih, y2));
cdCanvasWriteMode(ih->data->cdcanvas, CD_REPLACE);
}
ih->data->colres_dragging = 0;
sprintf(str, "RASTERWIDTH%d", ih->data->colres_drag_col);
iupAttribSetInt(ih, str, width-IMAT_PADDING_W-IMAT_FRAME_W);
sprintf(str, "WIDTH%d", ih->data->colres_drag_col);
iupAttribSetStr(ih, str, NULL);
ih->data->need_calcsize = 1;
iupMatrixDraw(ih, 0);
}
/* Change the column width interactively, just change the line in the screen.
When the user finishes the drag, the iupMatrixColResFinish function is called
to truly change the column width. */
void iupMatrixColResMove(Ihandle* ih, int x)
{
int y1, y2;
int delta = x - ih->data->colres_drag_col_start_x;
int width = ih->data->columns.sizes[ih->data->colres_drag_col] + delta;
if (width < 0)
return;
y1 = ih->data->lines.sizes[0]; /* from the bottom of the line of titles */
y2 = ih->data->h-1; /* to the bottom of the matrix */
cdCanvasWriteMode(ih->data->cdcanvas, CD_XOR);
cdCanvasForeground(ih->data->cdcanvas, IMAT_RESIZE_COLOR);
/* If it is not the first time, move old line */
if (ih->data->colres_drag_col_last_x != -1)
{
cdCanvasLine(ih->data->cdcanvas, ih->data->colres_drag_col_last_x, iupMATRIX_INVERTYAXIS(ih, y1),
ih->data->colres_drag_col_last_x, iupMATRIX_INVERTYAXIS(ih, y2));
}
cdCanvasLine(ih->data->cdcanvas, x, iupMATRIX_INVERTYAXIS(ih, y1),
x, iupMATRIX_INVERTYAXIS(ih, y2));
ih->data->colres_drag_col_last_x = x;
cdCanvasWriteMode(ih->data->cdcanvas, CD_REPLACE);
}
static void iMatrixColResResetMatrixCursor(Ihandle* ih)
{
char *cursor = iupAttribGet(ih, "_IUPMAT_CURSOR");
if (cursor)
{
IupStoreAttribute(ih, "CURSOR", cursor);
iupAttribSetStr(ih, "_IUPMAT_CURSOR", NULL);
}
}
/* Change the cursor when it passes over a group of the column titles. */
void iupMatrixColResCheckChangeCursor(Ihandle* ih, int x, int y)
{
if(ih->data->lines.sizes[0] &&
y < ih->data->lines.sizes[0] &&
iupAttribGetBoolean(ih, "RESIZEMATRIX"))
{
/* It is in the column titles area and the resize mode is on */
int found = 0, x_col, col;
x_col = ih->data->columns.sizes[0];
if (abs(x_col - x) < IMAT_COLRES_TOL)
found = 1; /* line titles */
else
{
x_col -= ih->data->columns.first_offset;
for(col = ih->data->columns.first; col <= ih->data->columns.last && !found; col++)
{
x_col += ih->data->columns.sizes[col];
if(abs(x_col - x) < IMAT_COLRES_TOL)
found = 1;
}
}
if (found)
{
if (!iupAttribGet(ih, "_IUPMAT_CURSOR"))
iupAttribStoreStr(ih, "_IUPMAT_CURSOR", IupGetAttribute(ih, "CURSOR"));
IupSetAttribute(ih, "CURSOR", "RESIZE_W");
}
else /* It is in the empty area after the last column, or inside a cell */
iMatrixColResResetMatrixCursor(ih);
}
else
iMatrixColResResetMatrixCursor(ih);
}
int iupMatrixColResIsResizing(Ihandle* ih)
{
return ih->data->colres_dragging;
}
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