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(svn r26024) [1.3] -Backport: number of prerequisites for key handling fixes/improvements
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@@ -764,6 +764,9 @@ void QueryString::DrawEditBox(const Window *w, int wid) const
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if (tb->caretxoffs + delta < 0) delta = -tb->caretxoffs;
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/* If we have a marked area, draw a background highlight. */
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if (tb->marklength != 0) GfxFillRect(delta + tb->markxoffs, 0, delta + tb->markxoffs + tb->marklength - 1, bottom - top, PC_GREY);
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DrawString(delta, tb->pixels, 0, tb->buf, TC_YELLOW);
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bool focussed = w->IsWidgetGloballyFocused(wid) || IsOSKOpenedFor(w, wid);
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if (focussed && tb->caret) {
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@@ -774,6 +777,105 @@ void QueryString::DrawEditBox(const Window *w, int wid) const
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_cur_dpi = old_dpi;
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}
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/**
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* Get the current caret position.
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* @param w Window the edit box is in.
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* @param wid Widget index.
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* @return Top-left location of the caret, relative to the window.
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*/
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Point QueryString::GetCaretPosition(const Window *w, int wid) const
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{
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const NWidgetLeaf *wi = w->GetWidget<NWidgetLeaf>(wid);
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assert((wi->type & WWT_MASK) == WWT_EDITBOX);
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bool rtl = _current_text_dir == TD_RTL;
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Dimension sprite_size = GetSpriteSize(rtl ? SPR_IMG_DELETE_RIGHT : SPR_IMG_DELETE_LEFT);
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int clearbtn_width = sprite_size.width + WD_IMGBTN_LEFT + WD_IMGBTN_RIGHT;
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int left = wi->pos_x + (rtl ? clearbtn_width : 0);
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int right = wi->pos_x + (rtl ? wi->current_x : wi->current_x - clearbtn_width) - 1;
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/* Clamp caret position to be inside out current width. */
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const Textbuf *tb = &this->text;
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int delta = min(0, (right - left) - tb->pixels - 10);
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if (tb->caretxoffs + delta < 0) delta = -tb->caretxoffs;
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Point pt = {left + WD_FRAMERECT_LEFT + tb->caretxoffs + delta, wi->pos_y + WD_FRAMERECT_TOP};
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return pt;
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}
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/**
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* Get the bounding rectangle for a range of the query string.
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* @param w Window the edit box is in.
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* @param wid Widget index.
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* @param from Start of the string range.
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* @param to End of the string range.
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* @return Rectangle encompassing the string range, relative to the window.
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*/
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Rect QueryString::GetBoundingRect(const Window *w, int wid, const char *from, const char *to) const
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{
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const NWidgetLeaf *wi = w->GetWidget<NWidgetLeaf>(wid);
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assert((wi->type & WWT_MASK) == WWT_EDITBOX);
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bool rtl = _current_text_dir == TD_RTL;
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Dimension sprite_size = GetSpriteSize(rtl ? SPR_IMG_DELETE_RIGHT : SPR_IMG_DELETE_LEFT);
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int clearbtn_width = sprite_size.width + WD_IMGBTN_LEFT + WD_IMGBTN_RIGHT;
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int left = wi->pos_x + (rtl ? clearbtn_width : 0);
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int right = wi->pos_x + (rtl ? wi->current_x : wi->current_x - clearbtn_width) - 1;
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int top = wi->pos_y + WD_FRAMERECT_TOP;
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int bottom = wi->pos_y + wi->current_y - 1 - WD_FRAMERECT_BOTTOM;
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/* Clamp caret position to be inside our current width. */
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const Textbuf *tb = &this->text;
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int delta = min(0, (right - left) - tb->pixels - 10);
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if (tb->caretxoffs + delta < 0) delta = -tb->caretxoffs;
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/* Get location of first and last character. */
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Point p1 = GetCharPosInString(tb->buf, from, FS_NORMAL);
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Point p2 = from != to ? GetCharPosInString(tb->buf, to, FS_NORMAL) : p1;
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Rect r = { Clamp(left + p1.x + delta + WD_FRAMERECT_LEFT, left, right), top, Clamp(left + p2.x + delta + WD_FRAMERECT_LEFT, left, right - WD_FRAMERECT_RIGHT), bottom };
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return r;
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}
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/**
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* Get the character that is rendered at a position.
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* @param w Window the edit box is in.
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* @param wid Widget index.
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* @param pt Position to test.
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* @return Pointer to the character at the position or NULL if no character is at the position.
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*/
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const char *QueryString::GetCharAtPosition(const Window *w, int wid, const Point &pt) const
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{
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const NWidgetLeaf *wi = w->GetWidget<NWidgetLeaf>(wid);
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assert((wi->type & WWT_MASK) == WWT_EDITBOX);
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bool rtl = _current_text_dir == TD_RTL;
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Dimension sprite_size = GetSpriteSize(rtl ? SPR_IMG_DELETE_RIGHT : SPR_IMG_DELETE_LEFT);
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int clearbtn_width = sprite_size.width + WD_IMGBTN_LEFT + WD_IMGBTN_RIGHT;
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int left = wi->pos_x + (rtl ? clearbtn_width : 0);
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int right = wi->pos_x + (rtl ? wi->current_x : wi->current_x - clearbtn_width) - 1;
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int top = wi->pos_y + WD_FRAMERECT_TOP;
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int bottom = wi->pos_y + wi->current_y - 1 - WD_FRAMERECT_BOTTOM;
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if (!IsInsideMM(pt.y, top, bottom)) return NULL;
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/* Clamp caret position to be inside our current width. */
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const Textbuf *tb = &this->text;
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int delta = min(0, (right - left) - tb->pixels - 10);
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if (tb->caretxoffs + delta < 0) delta = -tb->caretxoffs;
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return ::GetCharAtPosition(tb->buf, pt.x - delta - left);
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}
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void QueryString::ClickEditBox(Window *w, Point pt, int wid, int click_count, bool focus_changed)
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{
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const NWidgetLeaf *wi = w->GetWidget<NWidgetLeaf>(wid);
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