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CComponentsForm/CComponentsWindow: add page scroll handling

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This provides page scroll with up/down, left/right or combined.
Usage of exec() methods with implemented signals allows a
generic implematation of button or other message handling with
signal/slot solutions.

still to do: page cache
This commit is contained in:
Thilo Graf
2014-09-07 22:41:04 +02:00
committed by [CST] Focus
parent 4e5df866bd
commit 88ce62ea84
4 changed files with 210 additions and 0 deletions
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122
src/gui/components/cc_frm.cpp
View File

@@ -32,6 +32,7 @@
#include <stdlib.h>
#include <algorithm>
#include <system/debug.h>
using namespace std;
//-------------------------------------------------------------------------------------------------------
@@ -71,6 +72,12 @@ CComponentsForm::CComponentsForm( const int x_pos, const int y_pos, const int w,
cur_page = 0;
sb = NULL;
w_sb = 15;
page_scroll_mode = PG_SCROLL_M_UP_DOWN_KEY;
//connect page scroll slot
sigc::slot3<void, neutrino_msg_t&, neutrino_msg_data_t&, int&> sl = sigc::mem_fun(*this, &CComponentsForm::execPageScroll);
this->OnExec.connect(sl);
}
CComponentsForm::~CComponentsForm()
@@ -79,6 +86,101 @@ CComponentsForm::~CComponentsForm()
delete sb;
}
int CComponentsForm::exec()
{
dprintf(DEBUG_NORMAL, "[CComponentsForm] [%s - %d] \n", __func__, __LINE__);
OnBeforeExec();
neutrino_msg_t msg;
neutrino_msg_data_t data;
int res = menu_return::RETURN_REPAINT;
uint64_t timeoutEnd = CRCInput::calcTimeoutEnd(-1);
//required exit keys
msg_list_t exit_keys[2];
exit_keys[0].msg = CRCInput::RC_setup;
exit_keys[1].msg = CRCInput::RC_home;
bool exit_loop = false;
while (!exit_loop)
{
g_RCInput->getMsgAbsoluteTimeout( &msg, &data, &timeoutEnd );
//execute connected slots
OnExec(msg, data, res);
//exit loop
execExit(msg, data, res, exit_loop, exit_keys, 2);
if (CNeutrinoApp::getInstance()->handleMsg(msg, data) & messages_return::cancel_all)
{
dprintf(DEBUG_INFO, "[CComponentsForm] [%s - %d] messages_return::cancel_all\n", __func__, __LINE__);
res = menu_return::RETURN_EXIT_ALL;
exit_loop = EXIT;
}
}
OnAfterExec();
return res;
}
void CComponentsForm::execKey(neutrino_msg_t& msg, neutrino_msg_data_t& data, int& res, bool& exit_loop, const struct msg_list_t * const msg_list, const size_t& key_count, bool force_exit)
{
for(size_t i = 0; i < key_count; i++){
if (execKey(msg, data, res, exit_loop, msg_list[i].msg, force_exit)){
break;
}
}
}
void CComponentsForm::execKey(neutrino_msg_t& msg, neutrino_msg_data_t& data, int& res, bool& exit_loop, const std::vector<neutrino_msg_t>& v_msg_list, bool force_exit)
{
for(size_t i = 0; i < v_msg_list.size(); i++){
if (execKey(msg, data, res, exit_loop, v_msg_list[i], force_exit)){
break;
}
}
}
inline bool CComponentsForm::execKey(neutrino_msg_t& msg, neutrino_msg_data_t& data, int& res, bool& exit_loop, const neutrino_msg_t& msg_val, bool force_exit)
{
if (msg == msg_val){
OnExecMsg(msg, data, res);
if (force_exit)
exit_loop = EXIT;
return true;
}
return false;
}
void CComponentsForm::execPageScroll(neutrino_msg_t& msg, neutrino_msg_data_t& /*data*/, int& /*res*/)
{
if (page_scroll_mode == PG_SCROLL_M_OFF)
return;
if (page_scroll_mode & PG_SCROLL_M_UP_DOWN_KEY){
if (msg == CRCInput::RC_page_up)
ScrollPage(SCROLL_P_DOWN);
if (msg == CRCInput::RC_page_down)
ScrollPage(SCROLL_P_UP);
}
if (page_scroll_mode & PG_SCROLL_M_LEFT_RIGHT_KEY){
if (msg == CRCInput::RC_left)
ScrollPage(SCROLL_P_DOWN);
if (msg == CRCInput::RC_right)
ScrollPage(SCROLL_P_UP);
}
}
void CComponentsForm::execExit(neutrino_msg_t& msg, neutrino_msg_data_t& data, int& res, bool& exit_loop, const struct msg_list_t * const msg_list, const size_t& key_count)
{
execKey(msg, data, res, exit_loop, msg_list, key_count, true);
}
void CComponentsForm::clear()
{
@@ -503,3 +605,23 @@ CComponentsItem* CComponentsForm::getSelectedItemObject()
return ret;
}
void CComponentsForm::ScrollPage(int direction, bool do_paint)
{
OnBeforeScrollPage();
int target_page_id = (int)getPageCount() - 1;
int target_page = (int)cur_page;
if (direction == SCROLL_P_DOWN)
target_page = target_page+1 > target_page_id ? 0 : target_page+1;
else if (direction == SCROLL_P_UP)
target_page = target_page-1 < 0 ? target_page_id : target_page-1;
if (do_paint)
paintPage((uint8_t)target_page);
else
cur_page = (uint8_t)target_page;
OnAfterScrollPage();
}