int GUISliderValue::measureText(const std::string& str)
{
void* fontResource = NULL;
if (mFont) fontResource = mFont->GetResource();
return gr_measureEx(str.c_str(), fontResource);
}
int GUIText::GetCurrentBounds(int& w, int& h)
{
void* fontResource = NULL;
if (mFont) fontResource = mFont->GetResource();
h = mFontHeight;
w = gr_measureEx(mLastValue.c_str(), fontResource);
return 0;
}
int GUIText::Render(void)
{
if (!isConditionTrue())
return 0;
void* fontResource = NULL;
string displayValue;
if (mFont)
fontResource = mFont->GetResource();
mLastValue = parseText();
displayValue = mLastValue;
if (charSkip)
displayValue.erase(0, charSkip);
mVarChanged = 0;
int x = mRenderX, y = mRenderY;
int width = gr_measureEx(displayValue.c_str(), fontResource);
if (mPlacement != TOP_LEFT && mPlacement != BOTTOM_LEFT)
{
if (mPlacement == CENTER || mPlacement == CENTER_X_ONLY)
x -= (width / 2);
else
x -= width;
}
if (mPlacement != TOP_LEFT && mPlacement != TOP_RIGHT)
{
if (mPlacement == CENTER)
y -= (mFontHeight / 2);
else if (mPlacement == BOTTOM_LEFT || mPlacement == BOTTOM_RIGHT)
y -= mFontHeight;
}
if (hasHighlightColor && isHighlighted)
gr_color(mHighlightColor.red, mHighlightColor.green, mHighlightColor.blue, mHighlightColor.alpha);
else
gr_color(mColor.red, mColor.green, mColor.blue, mColor.alpha);
if (maxWidth)
gr_textExW(x, y, displayValue.c_str(), fontResource, maxWidth + x);
else
gr_textEx(x, y, displayValue.c_str(), fontResource);
return 0;
}
int GUIInput::NotifyTouch(TOUCH_STATE state, int x, int y)
{
static int startSelection = -1;
int textWidth;
string displayValue, originalValue;
void* fontResource = NULL;
if (mFont) fontResource = mFont->GetResource();
if (!isConditionTrue())
return -1;
if (!HasInputFocus) {
if (state != TOUCH_RELEASE)
return 0; // Only change focus if touch releases within the input box
if (GetSelection(x, y) >= 0) {
// When changing focus, we don't scroll or change the cursor location
PageManager::SetKeyBoardFocus(0);
PageManager::NotifyKeyboard(0);
SetInputFocus(1);
DrawCursor = true;
mRendered = false;
}
} else {
switch (state) {
case TOUCH_HOLD:
case TOUCH_REPEAT:
break;
case TOUCH_START:
startSelection = GetSelection(x,y);
lastX = x;
DrawCursor = false;
mRendered = false;
break;
case TOUCH_DRAG:
// Check if we dragged out of the selection window
if (GetSelection(x, y) == -1) {
lastX = 0;
break;
}
DrawCursor = false;
// Provide some debounce on initial touches
if (startSelection != -1 && abs(x - lastX) < 6) {
break;
}
startSelection = -1;
if (lastX != x)
HandleTextLocation(x);
break;
case TOUCH_RELEASE:
// We've moved the cursor location
int relativeX = x - mRenderX;
mRendered = false;
DrawCursor = true;
DataManager::GetValue(mVariable, displayValue);
if (HasMask) {
int index, string_size = displayValue.size();
string maskedValue;
for (index=0; index<string_size; index++)
maskedValue += mMask;
displayValue = maskedValue;
}
if (displayValue.size() == 0) {
skipChars = 0;
mCursorLocation = -1;
return 0;
} else if (skipChars && skipChars < displayValue.size()) {
displayValue.erase(0, skipChars);
}
string cursorString;
int cursorX = 0;
unsigned index = 0;
for(index=0; index<displayValue.size(); index++)
{
cursorString = displayValue.substr(0, index);
cursorX = gr_measureEx(cursorString.c_str(), fontResource) + mRenderX;
if (cursorX > x) {
if (index > 0)
mCursorLocation = index - 1;
else
mCursorLocation = index;
return 0;
}
}
mCursorLocation = -1;
break;
}
}
return 0;
}
int GUIInput::Render(void)
{
if (!isConditionTrue())
{
mRendered = false;
return 0;
}
void* fontResource = NULL;
if (mFont) fontResource = mFont->GetResource();
// First step, fill background
gr_color(mBackgroundColor.red, mBackgroundColor.green, mBackgroundColor.blue, 255);
gr_fill(mRenderX, mRenderY, mRenderW, mRenderH);
// Next, render the background resource (if it exists)
if (mBackground && mBackground->GetResource())
{
mBackgroundX = mRenderX + ((mRenderW - mBackgroundW) / 2);
mBackgroundY = mRenderY + ((mRenderH - mBackgroundH) / 2);
gr_blit(mBackground->GetResource(), 0, 0, mBackgroundW, mBackgroundH, mBackgroundX, mBackgroundY);
}
int ret = 0;
// Render the text
mInputText->SetRenderPos(mRenderX + scrollingX, mFontY);
mInputText->SetMaxWidth(mRenderW - scrollingX);
if (mInputText) ret = mInputText->Render();
if (ret < 0) return ret;
if (HasInputFocus && DrawCursor) {
// Render the cursor
string displayValue;
int cursorX;
DataManager::GetValue(mVariable, displayValue);
if (HasMask) {
int index, string_size = displayValue.size();
string maskedValue;
for (index=0; index<string_size; index++)
maskedValue += mMask;
displayValue = maskedValue;
}
if (displayValue.size() == 0) {
skipChars = 0;
mCursorLocation = -1;
cursorX = mRenderX;
} else {
if (skipChars && skipChars < displayValue.size()) {
displayValue.erase(0, skipChars);
}
if (mCursorLocation == 0) {
// Cursor is at the beginning
cursorX = mRenderX;
} else if (mCursorLocation > 0) {
// Cursor is in the middle
if (displayValue.size() > (unsigned)mCursorLocation) {
string cursorDisplay;
cursorDisplay = displayValue;
cursorDisplay.resize(mCursorLocation);
cursorX = gr_measureEx(cursorDisplay.c_str(), fontResource) + mRenderX;
} else {
// Cursor location is after the end of the text - reset to -1
mCursorLocation = -1;
cursorX = gr_measureEx(displayValue.c_str(), fontResource) + mRenderX;
}
} else {
// Cursor is at the end (-1)
cursorX = gr_measureEx(displayValue.c_str(), fontResource) + mRenderX;
}
}
cursorX += scrollingX;
// Make sure that the cursor doesn't go past the boundaries of the box
if (cursorX + (int)CursorWidth > mRenderX + mRenderW)
cursorX = mRenderX + mRenderW - CursorWidth;
// Set the color for the cursor
gr_color(mCursorColor.red, mCursorColor.green, mCursorColor.blue, 255);
gr_fill(cursorX, mFontY, CursorWidth, mFontHeight);
}
mRendered = true;
return ret;
}
int GUIInput::HandleTextLocation(int x)
{
int textWidth;
string displayValue, originalValue, insertChar;
void* fontResource = NULL;
if (mFont)
fontResource = mFont->GetResource();
DataManager::GetValue(mVariable, originalValue);
displayValue = originalValue;
if (HasMask) {
int index, string_size = displayValue.size();
string maskedValue;
for (index=0; index<string_size; index++)
maskedValue += mMask;
displayValue = maskedValue;
}
textWidth = gr_measureEx(displayValue.c_str(), fontResource);
if (textWidth <= mRenderW) {
lastX = x;
scrollingX = 0;
skipChars = 0;
mInputText->SkipCharCount(skipChars);
mRendered = false;
return 0;
}
if (skipChars && skipChars < displayValue.size())
displayValue.erase(0, skipChars);
textWidth = gr_measureEx(displayValue.c_str(), fontResource);
mRendered = false;
int deltaX, deltaText, newWidth;
if (x < -1000) {
// No change in scrolling
if (x == -1003)
mCursorLocation = -1;
if (mCursorLocation == -1) {
displayValue = originalValue;
skipChars = 0;
textWidth = gr_measureEx(displayValue.c_str(), fontResource);
while (textWidth > mRenderW) {
displayValue.erase(0, 1);
skipChars++;
textWidth = gr_measureEx(displayValue.c_str(), fontResource);
}
scrollingX = mRenderW - textWidth;
mInputText->SkipCharCount(skipChars);
} else if (x == -1001) {
// Added a new character
int adjust_scrollingX = 0;
string cursorLocate;
cursorLocate = displayValue;
cursorLocate.resize(mCursorLocation);
textWidth = gr_measureEx(cursorLocate.c_str(), fontResource);
while (textWidth > mRenderW) {
skipChars++;
mCursorLocation--;
cursorLocate.erase(0, 1);
textWidth = gr_measureEx(cursorLocate.c_str(), fontResource);
adjust_scrollingX = -1;
}
if (adjust_scrollingX) {
scrollingX = mRenderW - textWidth;
if (scrollingX < 0)
scrollingX = 0;
}
mInputText->SkipCharCount(skipChars);
} else if (x == -1002) {
// Deleted a character
while (-1) {
if (skipChars == 0) {
scrollingX = 0;
mInputText->SkipCharCount(skipChars);
return 0;
}
insertChar = originalValue.substr(skipChars - 1, 1);
displayValue.insert(0, insertChar);
newWidth = gr_measureEx(displayValue.c_str(), fontResource);
deltaText = newWidth - textWidth;
if (newWidth > mRenderW) {
scrollingX = mRenderW - textWidth;
if (scrollingX < 0)
scrollingX = 0;
mInputText->SkipCharCount(skipChars);
return 0;
} else {
textWidth = newWidth;
skipChars--;
mCursorLocation++;
}
}
} else
LOGINFO("GUIInput::HandleTextLocation -> We really shouldn't ever get here...\n");
} else if (x > lastX) {
// Dragging to right, scrolling left
while (-1) {
deltaX = x - lastX + scrollingX;
if (skipChars == 0 || deltaX == 0) {
scrollingX = 0;
lastX = x;
mInputText->SkipCharCount(skipChars);
return 0;
}
insertChar = originalValue.substr(skipChars - 1, 1);
displayValue.insert(0, insertChar);
newWidth = gr_measureEx(displayValue.c_str(), fontResource);
deltaText = newWidth - textWidth;
if (deltaText < deltaX) {
lastX += deltaText;
textWidth = newWidth;
skipChars--;
} else {
scrollingX = deltaX;
lastX = x;
mInputText->SkipCharCount(skipChars);
return 0;
}
}
} else if (x < lastX) {
// Dragging to left, scrolling right
if (textWidth <= mRenderW) {
lastX = x;
scrollingX = mRenderW - textWidth;
return 0;
}
if (scrollingX) {
deltaX = lastX - x;
if (scrollingX > deltaX) {
scrollingX -= deltaX;
lastX = x;
return 0;
} else {
lastX -= deltaX;
scrollingX = 0;
}
}
while (-1) {
deltaX = lastX - x;
displayValue.erase(0, 1);
skipChars++;
newWidth = gr_measureEx(displayValue.c_str(), fontResource);
deltaText = textWidth - newWidth;
if (newWidth <= mRenderW) {
scrollingX = mRenderW - newWidth;
lastX = x;
mInputText->SkipCharCount(skipChars);
return 0;
}
if (deltaText < deltaX) {
lastX -= deltaText;
textWidth = newWidth;
} else {
scrollingX = deltaText - deltaX;
lastX = x;
mInputText->SkipCharCount(skipChars);
return 0;
}
}
}
return 0;
}
void GUIKeyboard::DrawKey(Key& key, int keyX, int keyY, int keyW, int keyH)
{
unsigned char keychar = key.key;
if (!keychar)
return;
// key background
COLOR& c = (keychar >= 32 && keychar < 127) ? mKeyColorAlphanumeric : mKeyColorOther;
gr_color(c.red, c.green, c.blue, c.alpha);
keyX += mKeyMarginX;
keyY += mKeyMarginY;
keyW -= mKeyMarginX * 2;
keyH -= mKeyMarginY * 2;
gr_fill(keyX, keyY, keyW, keyH);
// key label
FontResource* labelFont = mFont;
string labelText;
ImageResource* labelImage = NULL;
if (keychar > 32 && keychar < 127) {
labelText = (char) keychar;
gr_color(mFontColor.red, mFontColor.green, mFontColor.blue, mFontColor.alpha);
}
else {
// search for a special key label
for (std::vector<KeyLabel>::iterator it = mKeyLabels.begin(); it != mKeyLabels.end(); ++it) {
if (it->layout_from > 0 && it->layout_from != currentLayout)
continue; // this label is for another layout
if (it->key == key.key && it->layout_to == key.layout)
{
// found a label
labelText = it->text;
labelImage = it->image;
break;
}
}
labelFont = mSmallFont;
gr_color(mFontColorSmall.red, mFontColorSmall.green, mFontColorSmall.blue, mFontColorSmall.alpha);
}
if (labelImage)
{
int w = labelImage->GetWidth();
int h = labelImage->GetHeight();
int x = keyX + (keyW - w) / 2;
int y = keyY + (keyH - h) / 2;
gr_blit(labelImage->GetResource(), 0, 0, w, h, x, y);
}
else if (!labelText.empty())
{
void* fontResource = labelFont->GetResource();
int textW = gr_measureEx(labelText.c_str(), fontResource);
int textH = labelFont->GetHeight();
int textX = keyX + (keyW - textW) / 2;
int textY = keyY + (keyH - textH) / 2;
gr_textEx(textX, textY, labelText.c_str(), fontResource);
}
// longpress key label (only if font is defined)
keychar = key.longpresskey;
if (keychar > 32 && keychar < 127 && mLongpressFont->GetResource()) {
void* fontResource = mLongpressFont->GetResource();
gr_color(mLongpressFontColor.red, mLongpressFontColor.green, mLongpressFontColor.blue, mLongpressFontColor.alpha);
string text(1, keychar);
int textH = mLongpressFont->GetHeight();
int textW = gr_measureEx(text.c_str(), fontResource);
int textX = keyX + keyW - longpressOffsetX - textW;
int textY = keyY + longpressOffsetY;
gr_textEx(textX, textY, text.c_str(), fontResource);
}
}