Add possibility to use images as background or handle of slidevalue
* Add tag <resource background="x" handle="y" handlehover="z" />
to the slidervalue object.
* All images are optional, e.g. you can use just handle or just
background image or no images whatsoever
Change-Id: Ie0fee92965c6e883c4e532732756008dcc9e385e
Signed-off-by: Vojtech Bocek <vbocek@gmail.com>
diff --git a/gui/objects.hpp b/gui/objects.hpp
index 486e2e7..cf20d7e 100644
--- a/gui/objects.hpp
+++ b/gui/objects.hpp
@@ -999,7 +999,11 @@
int mFontHeight;
GUIAction *mAction;
bool mChangeOnDrag;
- int lineW;
+ int mLineW;
+ bool mDragging;
+ Resource *mBackgroundImage;
+ Resource *mHandleImage;
+ Resource *mHandleHoverImage;
};
class MouseCursor : public RenderObject
diff --git a/gui/slidervalue.cpp b/gui/slidervalue.cpp
index c3ef69e..5b4d57f 100644
--- a/gui/slidervalue.cpp
+++ b/gui/slidervalue.cpp
@@ -45,6 +45,10 @@
mShowRange = false;
mChangeOnDrag = false;
mRendered = false;
+ mBackgroundImage = NULL;
+ mHandleImage = NULL;
+ mHandleHoverImage = NULL;
+ mDragging = false;
mLabel = NULL;
ConvertStrToColor("white", &mTextColor);
@@ -96,6 +100,22 @@
ConvertStrToColor(attr->value(), &mSliderColor);
}
+ child = node->first_node("resource");
+ if (child)
+ {
+ attr = child->first_attribute("background");
+ if(attr)
+ mBackgroundImage = PageManager::FindResource(attr->value());
+
+ attr = child->first_attribute("handle");
+ if(attr)
+ mHandleImage = PageManager::FindResource(attr->value());
+
+ attr = child->first_attribute("handlehover");
+ if(attr)
+ mHandleHoverImage = PageManager::FindResource(attr->value());
+ }
+
child = node->first_node("data");
if (child)
{
@@ -249,15 +269,22 @@
}
mSliderY = y;
- mLineY = (y + mSliderH/2) - (mLineH/2);
-
- mLineX = mRenderX + mLinePadding;
mActionX = mRenderX;
mActionY = mRenderY;
mActionW = mRenderW;
mActionH = mRenderH;
- lineW = mRenderW - (mLinePadding * 2);
+
+ if(mBackgroundImage && mBackgroundImage->GetResource())
+ {
+ mLineW = gr_get_width(mBackgroundImage->GetResource());
+ mLineH = gr_get_height(mBackgroundImage->GetResource());
+ }
+ else
+ mLineW = mRenderW - (mLinePadding * 2);
+
+ mLineY = y + (mSliderH/2 - mLineH/2);
+ mLineX = mRenderX + (mRenderW/2 - mLineW/2);
return 0;
}
@@ -293,15 +320,31 @@
}
// line
- gr_color(mLineColor.red, mLineColor.green, mLineColor.blue, mLineColor.alpha);
- gr_fill(mLineX, mLineY, lineW, mLineH);
+ if(mBackgroundImage && mBackgroundImage->GetResource())
+ {
+ gr_blit(mBackgroundImage->GetResource(), 0, 0, mLineW, mLineH, mLineX, mLineY);
+ }
+ else
+ {
+ gr_color(mLineColor.red, mLineColor.green, mLineColor.blue, mLineColor.alpha);
+ gr_fill(mLineX, mLineY, mLineW, mLineH);
+ }
// slider
- uint32_t sliderX = (mValuePct*lineW)/100 + mLineX;
- sliderX -= mSliderW/2;
+ uint32_t sliderX = mLineX + (mValuePct*(mLineW - mSliderW))/100;
- gr_color(mSliderColor.red, mSliderColor.green, mSliderColor.blue, mSliderColor.alpha);
- gr_fill(sliderX, mSliderY, mSliderW, mSliderH);
+ if(mHandleImage && mHandleImage->GetResource())
+ {
+ gr_surface s = mHandleImage->GetResource();
+ if(mDragging && mHandleHoverImage && mHandleHoverImage->GetResource())
+ s = mHandleHoverImage->GetResource();
+ gr_blit(s, 0, 0, mSliderW, mSliderH, sliderX, mLineY + (mLineH/2 - mSliderH/2));
+ }
+ else
+ {
+ gr_color(mSliderColor.red, mSliderColor.green, mSliderColor.blue, mSliderColor.alpha);
+ gr_fill(sliderX, mSliderY, mSliderW, mSliderH);
+ }
void *fontResource = NULL;
if(mFont) fontResource = mFont->GetResource();
@@ -310,7 +353,7 @@
{
int rangeY = (mLineY - mLineH/2) - mFontHeight/2;
gr_textEx(mRenderX + mPadding/2, rangeY, mMinStr.c_str(), fontResource);
- gr_textEx(mLineX + lineW + mPadding/2, rangeY, mMaxStr.c_str(), fontResource);
+ gr_textEx(mLineX + mLineW + mPadding/2, rangeY, mMaxStr.c_str(), fontResource);
}
if(mValueStr && mShowCurr)
@@ -352,24 +395,23 @@
if (!isConditionTrue())
return -1;
- static bool dragging = false;
switch (state)
{
case TOUCH_START:
- if (x >= mRenderX && x <= mRenderX + mRenderW &&
+ if (x >= mLineX && x <= mLineX + mLineW &&
y >= mRenderY && y <= mRenderY + mRenderH)
{
- dragging = true;
+ mDragging = true;
}
// no break
case TOUCH_DRAG:
{
- if (!dragging) return 0;
+ if (!mDragging) return 0;
- x = std::max(mLineX, x);
- x = std::min(mLineX + lineW, x);
+ x = std::max(mLineX + mSliderW/2, x);
+ x = std::min(mLineX + mLineW - mSliderW/2, x);
- mValuePct = float(((x - mLineX) * 100) / lineW);
+ mValuePct = float(((x - (mLineX + mSliderW/2)) * 100) / (mLineW - mSliderW));
int newVal = valueFromPct(mValuePct);
if (newVal != mValue) {
mRendered = false;
@@ -385,8 +427,8 @@
}
case TOUCH_RELEASE:
{
- if (!dragging) return 0;
- dragging = false;
+ if (!mDragging) return 0;
+ mDragging = false;
if (!mVariable.empty())
DataManager::SetValue(mVariable, mValue);