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Fix check for empty clipping array (#4421)

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NP v/d Spek 2023-02-12 17:03:53 +01:00 committed by Jesse Hills
parent 8cf26d6f3c
commit 310355a00b
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GPG key ID: BEAAE804EFD8E83A
2 changed files with 28 additions and 40 deletions
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10
esphome/components/display/display_buffer.cpp
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@ -16,11 +16,11 @@ const Color COLOR_OFF(0, 0, 0, 0);
const Color COLOR_ON(255, 255, 255, 255);
void Rect::expand(int16_t horizontal, int16_t vertical) {
if ((*this).is_set() && ((*this).w >= (-2 * horizontal)) && ((*this).h >= (-2 * vertical))) {
(*this).x = (*this).x - horizontal;
(*this).y = (*this).y - vertical;
(*this).w = (*this).w + (2 * horizontal);
(*this).h = (*this).h + (2 * vertical);
if (this->is_set() && (this->w >= (-2 * horizontal)) && (this->h >= (-2 * vertical))) {
this->x = this->x - horizontal;
this->y = this->y - vertical;
this->w = this->w + (2 * horizontal);
this->h = this->h + (2 * vertical);
}
}

58
esphome/components/display/display_buffer.h
View file

@ -400,60 +400,48 @@ class DisplayBuffer {
*/
virtual DisplayType get_display_type() = 0;
///
/// Set the clipping rectangle for further drawing
///
/// \param[in] rect: Pointer to Rect for clipping (or NULL for entire screen)
///
/// \return true if success, false if error
///
/** Set the clipping rectangle for further drawing
*
* @param[in] rect: Pointer to Rect for clipping (or NULL for entire screen)
*
* return true if success, false if error
*/
void start_clipping(Rect rect);
void start_clipping(int16_t left, int16_t top, int16_t right, int16_t bottom) {
start_clipping(Rect(left, top, right - left, bottom - top));
};
///
/// Add a rectangular region to the invalidation region
/// - This is usually called when an element has been modified
///
/// \param[in] rect: Rectangle to add to the invalidation region
///
/// \return none
///
/** Add a rectangular region to the invalidation region
* - This is usually called when an element has been modified
*
* @param[in] rect: Rectangle to add to the invalidation region
*/
void extend_clipping(Rect rect);
void extend_clipping(int16_t left, int16_t top, int16_t right, int16_t bottom) {
this->extend_clipping(Rect(left, top, right - left, bottom - top));
};
///
/// substract a rectangular region to the invalidation region
/// - This is usually called when an element has been modified
///
/// \param[in] rect: Rectangle to add to the invalidation region
///
/// \return none
///
/** substract a rectangular region to the invalidation region
* - This is usually called when an element has been modified
*
* @param[in] rect: Rectangle to add to the invalidation region
*/
void shrink_clipping(Rect rect);
void shrink_clipping(uint16_t left, uint16_t top, uint16_t right, uint16_t bottom) {
this->shrink_clipping(Rect(left, top, right - left, bottom - top));
};
///
/// Reset the invalidation region
///
/// \return none
///
/** Reset the invalidation region
*/
void end_clipping();
///
/// Get the current the clipping rectangle
///
///
/// \return rect for active clipping region
///
/** Get the current the clipping rectangle
*
* return rect for active clipping region
*/
Rect get_clipping();
bool is_clipping() const { return this->clipping_rectangle_.empty(); }
bool is_clipping() const { return !this->clipping_rectangle_.empty(); }
protected:
void vprintf_(int x, int y, Font *font, Color color, TextAlign align, const char *format, va_list arg);