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uiScrollable.cpp
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//--------------------------------------
// The main Alarm window
//--------------------------------------
#include "uiScrollable.h"
#include "gBuffer.h"
//----------------------------------------------------------------------
// WINDOW DEFINITION
//----------------------------------------------------------------------
#define NUM_BUTTONS 4
#define IDX_BACK_BUTTON 0
#define IDX_UP_BUTTON 1
#define IDX_DOWN_BUTTON 2
#define IDX_ROOT_BUTTON 3
#define ID_BACK_BUTTON (0x0001 | ID_TYPE_TEXT | ID_TYPE_BUTTON | ID_TYPE_MUTABLE )
#define ID_UP_BUTTON (0x0002 | ID_TYPE_TEXT | ID_TYPE_BUTTON | ID_TYPE_MUTABLE )
#define ID_DOWN_BUTTON (0x0003 | ID_TYPE_TEXT | ID_TYPE_BUTTON | ID_TYPE_MUTABLE )
#define ID_ROOT_BUTTON (0x0004 | ID_TYPE_TEXT | ID_TYPE_BUTTON | ID_TYPE_MUTABLE )
#define ID_LINE1 (0x0011 | ID_TYPE_TEXT | ID_TYPE_BUTTON | ID_TYPE_DUAL)
#define ID_LINE2 (0x0012 | ID_TYPE_TEXT | ID_TYPE_BUTTON | ID_TYPE_DUAL)
#define ID_LINE3 (0x0013 | ID_TYPE_TEXT | ID_TYPE_BUTTON | ID_TYPE_DUAL)
#define ID_LINE4 (0x0014 | ID_TYPE_TEXT | ID_TYPE_BUTTON | ID_TYPE_DUAL)
#define ID_LINE5 (0x0015 | ID_TYPE_TEXT | ID_TYPE_BUTTON | ID_TYPE_DUAL)
static uiMutable buttons[NUM_BUTTONS] =
{
{ "..", COLOR_BUTTON_HIDDEN, COLOR_WHITE, FONT_BIG },
{ "^", COLOR_BUTTON_HIDDEN, COLOR_WHITE, FONT_BIG },
{ "v", COLOR_BUTTON_HIDDEN, COLOR_WHITE, FONT_BIG },
{ "/", COLOR_BUTTON_HIDDEN, COLOR_WHITE, FONT_BIG },
};
static uiDualElement lines[MAX_SCROLLABLE_LINES] =
{
{ ELEMENT_TYPE_STR, COLOR_BUTTON_HIDDEN, 190, 70, NULL, NULL, FONT_MONO },
{ ELEMENT_TYPE_STR, COLOR_BUTTON_HIDDEN, 190, 70, NULL, NULL, FONT_MONO },
{ ELEMENT_TYPE_STR, COLOR_BUTTON_HIDDEN, 190, 70, NULL, NULL, FONT_MONO },
{ ELEMENT_TYPE_STR, COLOR_BUTTON_HIDDEN, 190, 70, NULL, NULL, FONT_MONO },
{ ELEMENT_TYPE_STR, COLOR_BUTTON_HIDDEN, 190, 70, NULL, NULL, FONT_MONO },
};
static const uiElement scroll_elements[] =
{
{ ID_BACK_BUTTON, 270, 37, 48, 42, V(&buttons[0]) },
{ ID_UP_BUTTON , 270, 79, 48, 42, V(&buttons[1]) },
{ ID_DOWN_BUTTON, 270, 121, 48, 42, V(&buttons[2]) },
{ ID_ROOT_BUTTON, 270, 163, 48, 42, V(&buttons[3]) },
{ ID_LINE1, 0, 35, 265, 34, V(&lines[0]), COLOR_BLUE, COLOR_WHITE, FONT_MONO, JUST_LEFT },
{ ID_LINE2, 0, 69, 265, 34, V(&lines[1]), COLOR_BLUE, COLOR_WHITE, FONT_MONO, JUST_LEFT },
{ ID_LINE3, 0, 103, 265, 34, V(&lines[2]), COLOR_BLUE, COLOR_WHITE, FONT_MONO, JUST_LEFT },
{ ID_LINE4, 0, 137, 265, 34, V(&lines[3]), COLOR_BLUE, COLOR_WHITE, FONT_MONO, JUST_LEFT },
{ ID_LINE5, 0, 171, 265, 34, V(&lines[4]), COLOR_BLUE, COLOR_WHITE, FONT_MONO, JUST_LEFT },
};
//----------------------
// implementation
//----------------------
uiScrollable::uiScrollable() :
uiWindow(scroll_elements,sizeof(scroll_elements)/sizeof(uiElement))
{}
void uiScrollable::begin()
{
m_draw_needed = true;
tft.fillRect(0,UI_TOP_MARGIN,UI_SCREEN_WIDTH,UI_CONTENT_HEIGHT,COLOR_BLACK);
}
void uiScrollable::onButton(const uiElement *ele, bool pressed)
// called before drawElement
{
if (!pressed)
{
switch (ele->id_type)
{
case ID_BACK_BUTTON :
onGoBack();
break;
case ID_UP_BUTTON :
m_top_num--;
break;
case ID_DOWN_BUTTON :
m_top_num++;
break;
case ID_ROOT_BUTTON :
onGoHome();
break;
case ID_LINE1 :
case ID_LINE2 :
case ID_LINE3 :
case ID_LINE4 :
case ID_LINE5 :
{
int rel_num = ele->id_type-ID_LINE1;
onLineClicked(&lines[rel_num],m_top_num,rel_num);
break;
}
}
}
}
void uiScrollable::update()
{
if (m_buffer_version != gs_buffer_version)
{
m_draw_needed = true;
m_buffer_version = updateBuffer();
// on updateBuffer(), constrain top_num
if (m_top_num > m_num_lines - MAX_SCROLLABLE_LINES)
{
m_top_num = m_num_lines - MAX_SCROLLABLE_LINES;
if (m_top_num < 0) m_top_num = 0;
}
}
if (m_draw_needed ||
m_last_top_num != m_top_num ||
m_last_err_msg != m_err_msg)
{
if (m_last_err_msg != m_err_msg)
tft.fillRect(0,UI_TOP_MARGIN,UI_SCREEN_WIDTH,UI_CONTENT_HEIGHT,COLOR_BLACK);
m_draw_needed = false;
m_last_top_num = m_top_num;
m_last_err_msg = m_err_msg;
the_app.setTitle(getTitle());
if (m_err_msg)
{
drawText(
m_err_msg,
JUST_CENTER,
FONT_BIG,
0,UI_TOP_MARGIN,UI_SCREEN_WIDTH,UI_CONTENT_HEIGHT,
COLOR_RED,
COLOR_BLACK);
}
else
{
for (int i=0; i<NUM_BUTTONS; i++)
buttons[i].bg = COLOR_BUTTON_HIDDEN;
for (int i=0; i<MAX_SCROLLABLE_LINES; i++)
lines[i].bg = COLOR_BUTTON_HIDDEN;
int rel_line = 0;
int abs_line = m_top_num;
while (abs_line < m_num_lines &&
rel_line < MAX_SCROLLABLE_LINES)
{
uiDualElement *dual = &lines[rel_line];
dual->bg = COLOR_DARKBLUE;
getLine(abs_line,&dual->label,(const char **)&dual->value);
rel_line++;
abs_line++;
}
if (canGoBack())
buttons[IDX_BACK_BUTTON].bg = COLOR_BLUE;
if (m_top_num)
buttons[IDX_UP_BUTTON].bg = COLOR_BLUE;
if (m_top_num + MAX_SCROLLABLE_LINES < m_num_lines)
buttons[IDX_DOWN_BUTTON].bg = COLOR_BLUE;
if (canGoHome())
buttons[IDX_ROOT_BUTTON].bg = COLOR_BLUE;
drawTypedElements();
}
}
}