| OZ++ Class: FTMultiColumn |
/******************************************************************************
*
* Copyright (c) 2015 TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer.
*
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* FTMultiColumn.h
*
*****************************************************************************/
#pragma once
#include <oz++/motif/ApplicationView.h>
#include <oz++/motif/DrawnButton.h>
#include <oz++/motif/PixmapFile.h>
#include <oz++/SmartArray.h>
#include <oz++/CharString.h>
#include <oz++/xft/FTPrimitive.h>
#include <oz++/xft/FTDC.h>
#include <oz++/xft/FTColumnLayout.h>
namespace OZ {
/*
typedef struct {
int width;
int alignment;
const char* color;
} FTColumnLayout;
*/
class FTMultiColumn :public FTPrimitive {
private:
FTColumnLayout* columns;
SmartArray<CharString*> labels;
int numColumns;
XRectangle* rectangles;
int itemNum;
private:
static const int MARGIN = 4;
public:
FTMultiColumn(View* parent, const char* name, Args& args)
:FTPrimitive(parent, name, args.set(XmNpushButtonEnabled, False)
.set(XmNalignment, XmALIGNMENT_BEGINNING )
.set(XmNhighlightColor, parent->color("blue"))
.set(XmNhighlightThickness, 1)
.set(XmNbackground, parent->whitePixel())
.set(XmNshadowThickness, 0)
.set(XmNtraversalOn, True) ),
columns(NULL),
numColumns(0),
rectangles(NULL),
itemNum(0)
{
if (args.has(XmNcolumnLayout) && args.has(XmNnumColumns) ) {
//Shallow copy
columns = (FTColumnLayout*) args.get(XmNcolumnLayout);
numColumns = (int) args.get(XmNnumColumns);
} else {
throw IException("Invalid argument");
}
short x = 0;
short y = 0;
rectangles = new XRectangle[numColumns];
for (int i = 0; i<numColumns; i++) {
unsigned short w = (unsigned short)columns[i].width;
XRectangle* r = &rectangles[i];
r -> x = x;
r -> y = y;
r -> width = w;// + MARGIN*2;
r -> height = 30;
//printf("%d %d %d %d\n", x, y, w, h);
x += w;
}
}
~FTMultiColumn()
{
columns = NULL;
delete [] rectangles;
rectangles = NULL;
}
void setItems(const char** items, int num)
{
if (items && num >0 && num <=numColumns) {
labels.removeAllItems();
itemNum = num;
for (int i = 0; i<num; i++) {
//printf("%s \n", items[i]);
labels[i] = new CharString(items[i]);
}
} else {
printf("Invalid argument\n");
}
}
const char* getItem(int pos)
{
const char* item = NULL;
if (pos >=0 && pos < itemNum) {
CharString* cstring = labels[pos];
if (cstring) {
item = (const char*)(*cstring);
}
} else {
printf("Invalid argument %d\n", pos);
}
return item;
}
void expose(Action& action)
{
Display* display = getDisplay();
FTDC dc(this -> getWidget());
FTFont* font = getFont();
if (font == NULL) {
printf("Font is NULL");
return;
}
if (labels.getSize() == 0) {
return;
}
dc.setFont(font);
int th = 0;
//dc.setClipRectangles(0, 0, rectangles, numColumns);
int height = 0;
for (int i = 0; i < numColumns; i++) {
CharString* cstring = NULL;
try {
cstring = labels[i];
} catch (Exception& ex) {
ex.display();
}
if (cstring == NULL) {
break;
}
const char* string = (const char*)(*cstring);
//printf("%d %s \n", i, string);
XGlyphInfo ex;
font -> textExtentsUtf8(string, strlen(string), &ex);
int asc = ex.y;
int des = ex.height - ex.y;
int x = rectangles[i].x + MARGIN;
int y = rectangles[i].y;
int width = rectangles[i].width;
int alignment = columns[i].alignment;
if (alignment == XmALIGNMENT_BEGINNING) {
;//Do nothing here
}
if (alignment == XmALIGNMENT_CENTER) {
x = x + (width - ex.width)/2;
}
if (alignment == XmALIGNMENT_END) {
x = x + width - ex.width - MARGIN - height;
}
if (i == 0) {
get(XmNheight, (XtArgVal)&height);
//set(XmNheight, ex.height + MARGIN*2);
//height = ex.height + MARGIN*2;
}
XRectangle* r = &rectangles[i];
//r -> height = ex.height + MARGIN*2;
r -> height = height;// + MARGIN*2;
y = y + (height - ex.height)/2 + ex.height - des/2;
dc.setClipRectangles(height, 0, &rectangles[i], 1);
dc.drawStringUtf8(x+height, y, string, strlen(string), columns[i].color );
// printf("%d %d %s\n", x, y, columns[i].label);
//y += MARGIN*2;
}
}
};
}