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User can now type more than one letter to narrow down the search.

This commit is contained in:
Stephen White 2018-08-08 20:31:26 +10:00
parent 9b902f19bf
commit 07143696fe
2 changed files with 76 additions and 23 deletions
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67
src/FileBrowser.cpp
View File

@ -333,6 +333,18 @@ bool FileBrowser::BrowsableListView::CheckBrowseNavigation(bool pageOnly)
return dirty;
}
FileBrowser::BrowsableList::BrowsableList()
: current(0)
, currentIndex(0)
, currentHighlightTime(0)
, scrollHighlightRate(0)
, searchPrefixIndex(0)
, searchLastKeystrokeTime(0)
{
lastUpdateTime = read32(ARM_SYSTIMER_CLO);
searchPrefix[0] = 0;
}
void FileBrowser::BrowsableList::ClearSelections()
{
u32 entryIndex;
@ -368,6 +380,21 @@ bool FileBrowser::BrowsableList::CheckBrowseNavigation()
bool dirty = false;
u32 index;
// Calculate the number of micro seconds since we were last called.
u32 updateTime = read32(ARM_SYSTIMER_CLO);
u32 timeDelta;
if (updateTime < lastUpdateTime)
timeDelta = updateTime + (0xffffffff - lastUpdateTime); // wrapped
else
timeDelta = updateTime - lastUpdateTime;
lastUpdateTime = updateTime;
if (searchPrefixIndex != 0) // Are they typing?
{
searchLastKeystrokeTime += timeDelta;
}
for (index = 0; index < views.size(); ++index)
{
dirty |= views[index].CheckBrowseNavigation(index != 0);
@ -380,11 +407,21 @@ bool FileBrowser::BrowsableList::CheckBrowseNavigation()
unsigned found=0;
u32 i=0;
searchLastKeystrokeTime = 0;
searchPrefix[searchPrefixIndex] = searchChar;
if (searchPrefixIndex < KEYBOARD_SEARCH_BUFFER_SIZE - 1)
{
searchPrefixIndex++;
searchPrefix[searchPrefixIndex] = 0;
dirty |= 1;
}
// first look from next to last
for (i=1+currentIndex; i <= numberOfEntriesMinus1 ; i++)
{
FileBrowser::BrowsableList::Entry* entry = &entries[i];
if (strncasecmp(&searchChar, entry->filImage.fname, 1) == 0)
if (strncasecmp(searchPrefix, entry->filImage.fname, searchPrefixIndex) == 0)
{
found=i;
break;
@ -396,7 +433,7 @@ bool FileBrowser::BrowsableList::CheckBrowseNavigation()
for (i=0; i< 1+currentIndex ; i++)
{
FileBrowser::BrowsableList::Entry* entry = &entries[i];
if (strncasecmp(&searchChar, entry->filImage.fname, 1) == 0)
if (strncasecmp(searchPrefix, entry->filImage.fname, searchPrefixIndex) == 0)
{
found=i;
break;
@ -411,7 +448,17 @@ bool FileBrowser::BrowsableList::CheckBrowseNavigation()
dirty |= 1;
}
}
else if (inputMappings->BrowseHome())
else
{
if (searchLastKeystrokeTime > 500000)
{
searchPrefixIndex = 0;
searchPrefix[0] = 0;
searchLastKeystrokeTime = 0;
dirty |= 1;
}
if (inputMappings->BrowseHome())
{
currentIndex = 0;
SetCurrent();
@ -423,6 +470,7 @@ bool FileBrowser::BrowsableList::CheckBrowseNavigation()
SetCurrent();
dirty |= 1;
}
}
return dirty;
}
@ -660,12 +708,11 @@ void FileBrowser::RefeshDisplayForBrowsableList(FileBrowser::BrowsableList* brow
void FileBrowser::RefeshDisplay()
{
u32 textColour = Colour(VIC2_COLOUR_INDEX_LGREEN);
u32 bgColour = Colour(VIC2_COLOUR_INDEX_GREY);
char buffer[1024];
if (f_getcwd(buffer, 1024) == FR_OK)
{
u32 textColour = Colour(VIC2_COLOUR_INDEX_LGREEN);
u32 bgColour = Colour(VIC2_COLOUR_INDEX_GREY);
screenMain->ClearArea(0, 0, (int)screenMain->Width(), 17, bgColour);
screenMain->PrintText(false, 0, 0, buffer, textColour, bgColour);
}
@ -679,6 +726,12 @@ void FileBrowser::RefeshDisplay()
DisplayPNG();
DisplayStatusBar();
if (folder.searchPrefixIndex > 0)
{
u32 y = screenMain->ScaleY(STATUS_BAR_POSITION_Y);
screenMain->PrintText(false, 0, y, folder.searchPrefix, textColour, bgColour);
}
}
bool FileBrowser::CheckForPNG(const char* filename, FILINFO& filIcon)
@ -843,7 +896,7 @@ void FileBrowser::Update()
{
InputMappings* inputMappings = InputMappings::Instance();
if ( inputMappings->CheckKeyboardBrowseMode() || inputMappings->CheckButtonsBrowseMode() )
if ( inputMappings->CheckKeyboardBrowseMode() || inputMappings->CheckButtonsBrowseMode() || (folder.searchPrefixIndex != 0) )
UpdateInputFolders();
UpdateCurrentHighlight();

14
src/FileBrowser.h
View File

@ -48,6 +48,8 @@
#define STATUS_BAR_POSITION_Y (40 * 16 + 10)
#define KEYBOARD_SEARCH_BUFFER_SIZE 512
class FileBrowser
{
public:
@ -95,13 +97,7 @@ public:
class BrowsableList
{
public:
BrowsableList()
: current(0)
, currentIndex(0)
, currentHighlightTime(0)
, scrollHighlightRate(0)
{
}
BrowsableList();
void Clear()
{
@ -163,6 +159,10 @@ public:
float currentHighlightTime;
float scrollHighlightRate;
u32 lastUpdateTime;
char searchPrefix[KEYBOARD_SEARCH_BUFFER_SIZE];
u32 searchPrefixIndex;
u32 searchLastKeystrokeTime;
std::vector<BrowsableListView> views;
};