Unify scrollable list code
The goal of this patch set is to eliminate the code duplication
caused by copy/paste of the code in the file selector, listbox,
and partition list GUI elements. Those classes will now utilize a
single GUIScrollList class that will handle rendering and
scrolling.
Change-Id: I0cb98ab36cf47178296034293435225658c779cd
diff --git a/gui/listbox.cpp b/gui/listbox.cpp
index 851b373..545b7a2 100644
--- a/gui/listbox.cpp
+++ b/gui/listbox.cpp
@@ -16,26 +16,9 @@
along with TWRP. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <linux/input.h>
-#include <pthread.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
#include <string.h>
-#include <fcntl.h>
-#include <sys/reboot.h>
#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/ioctl.h>
-#include <time.h>
-#include <unistd.h>
-#include <stdlib.h>
#include <dirent.h>
-#include <ctype.h>
-
-#include <algorithm>
extern "C" {
#include "../twcommon.h"
@@ -45,100 +28,18 @@
#include "rapidxml.hpp"
#include "objects.hpp"
#include "../data.hpp"
-#include "../twrp-functions.hpp"
-#define SCROLLING_SPEED_DECREMENT 6
-#define SCROLLING_FLOOR 10
-#define SCROLLING_MULTIPLIER 6
-
-GUIListBox::GUIListBox(xml_node<>* node) : GUIObject(node)
+GUIListBox::GUIListBox(xml_node<>* node) : GUIScrollList(node)
{
xml_attribute<>* attr;
xml_node<>* child;
- int header_separator_color_specified = 0, header_separator_height_specified = 0, header_text_color_specified = 0, header_background_color_specified = 0;
-
- mStart = mLineSpacing = startY = mFontHeight = mSeparatorH = scrollingY = scrollingSpeed = 0;
- mIconWidth = mIconHeight = mSelectedIconHeight = mSelectedIconWidth = mUnselectedIconHeight = mUnselectedIconWidth = mHeaderIconHeight = mHeaderIconWidth = 0;
- mHeaderSeparatorH = mLineHeight = mHeaderIsStatic = mHeaderH = actualLineHeight = 0;
- mIconSelected = mIconUnselected = mBackground = mFont = mHeaderIcon = NULL;
- mBackgroundX = mBackgroundY = mBackgroundW = mBackgroundH = 0;
- mFastScrollW = mFastScrollLineW = mFastScrollRectW = mFastScrollRectH = 0;
- mFastScrollRectX = mFastScrollRectY = -1;
+ mIconSelected = mIconUnselected = NULL;
+ int mSelectedIconWidth = 0, mSelectedIconHeight = 0, mUnselectedIconWidth = 0, mUnselectedIconHeight = 0, mIconWidth = 0, mIconHeight = 0;
mUpdate = 0;
- touchDebounce = 6;
- ConvertStrToColor("black", &mBackgroundColor);
- ConvertStrToColor("black", &mHeaderBackgroundColor);
- ConvertStrToColor("black", &mSeparatorColor);
- ConvertStrToColor("black", &mHeaderSeparatorColor);
- ConvertStrToColor("white", &mFontColor);
- ConvertStrToColor("white", &mHeaderFontColor);
- ConvertStrToColor("white", &mFastScrollLineColor);
- ConvertStrToColor("white", &mFastScrollRectColor);
- hasHighlightColor = false;
- hasFontHighlightColor = false;
- isHighlighted = false;
- startSelection = -1;
- // Load header text
- child = node->first_node("header");
- if (child)
- {
- attr = child->first_attribute("icon");
- if (attr)
- mHeaderIcon = PageManager::FindResource(attr->value());
-
- attr = child->first_attribute("background");
- if (attr)
- {
- std::string color = attr->value();
- ConvertStrToColor(color, &mHeaderBackgroundColor);
- header_background_color_specified = -1;
- }
- attr = child->first_attribute("textcolor");
- if (attr)
- {
- std::string color = attr->value();
- ConvertStrToColor(color, &mHeaderFontColor);
- header_text_color_specified = -1;
- }
- attr = child->first_attribute("separatorcolor");
- if (attr)
- {
- std::string color = attr->value();
- ConvertStrToColor(color, &mHeaderSeparatorColor);
- header_separator_color_specified = -1;
- }
- attr = child->first_attribute("separatorheight");
- if (attr) {
- string parsevalue = gui_parse_text(attr->value());
- mHeaderSeparatorH = atoi(parsevalue.c_str());
- header_separator_height_specified = -1;
- }
- }
- child = node->first_node("text");
- if (child) mHeaderText = child->value();
-
- memset(&mHighlightColor, 0, sizeof(COLOR));
- child = node->first_node("highlight");
- if (child) {
- attr = child->first_attribute("color");
- if (attr) {
- hasHighlightColor = true;
- std::string color = attr->value();
- ConvertStrToColor(color, &mHighlightColor);
- }
- }
-
- // Simple way to check for static state
- mLastValue = gui_parse_text(mHeaderText);
- if (mLastValue != mHeaderText)
- mHeaderIsStatic = 0;
- else
- mHeaderIsStatic = -1;
-
+ // Get the icons, if any
child = node->first_node("icon");
- if (child)
- {
+ if (child) {
attr = child->first_attribute("selected");
if (attr)
mIconSelected = PageManager::FindResource(attr->value());
@@ -146,187 +47,41 @@
if (attr)
mIconUnselected = PageManager::FindResource(attr->value());
}
- child = node->first_node("background");
- if (child)
- {
- attr = child->first_attribute("resource");
- if (attr)
- mBackground = PageManager::FindResource(attr->value());
- attr = child->first_attribute("color");
- if (attr)
- {
- std::string color = attr->value();
- ConvertStrToColor(color, &mBackgroundColor);
- if (!header_background_color_specified)
- ConvertStrToColor(color, &mHeaderBackgroundColor);
- }
+ if (mIconSelected && mIconSelected->GetResource()) {
+ mSelectedIconWidth = gr_get_width(mIconSelected->GetResource());
+ mSelectedIconHeight = gr_get_height(mIconSelected->GetResource());
+ if (mSelectedIconHeight > mIconHeight)
+ mIconHeight = mSelectedIconHeight;
+ mIconWidth = mSelectedIconWidth;
}
- // Load the placement
- LoadPlacement(node->first_node("placement"), &mRenderX, &mRenderY, &mRenderW, &mRenderH);
- SetActionPos(mRenderX, mRenderY, mRenderW, mRenderH);
-
- // Load the font, and possibly override the color
- child = node->first_node("font");
- if (child)
- {
- attr = child->first_attribute("resource");
- if (attr)
- mFont = PageManager::FindResource(attr->value());
-
- attr = child->first_attribute("color");
- if (attr)
- {
- std::string color = attr->value();
- ConvertStrToColor(color, &mFontColor);
- if (!header_text_color_specified)
- ConvertStrToColor(color, &mHeaderFontColor);
- }
-
- attr = child->first_attribute("spacing");
- if (attr) {
- string parsevalue = gui_parse_text(attr->value());
- mLineSpacing = atoi(parsevalue.c_str());
- }
-
- attr = child->first_attribute("highlightcolor");
- memset(&mFontHighlightColor, 0, sizeof(COLOR));
- if (attr)
- {
- std::string color = attr->value();
- ConvertStrToColor(color, &mFontHighlightColor);
- hasFontHighlightColor = true;
- }
+ if (mIconUnselected && mIconUnselected->GetResource()) {
+ mUnselectedIconWidth = gr_get_width(mIconUnselected->GetResource());
+ mUnselectedIconHeight = gr_get_height(mIconUnselected->GetResource());
+ if (mUnselectedIconHeight > mIconHeight)
+ mIconHeight = mUnselectedIconHeight;
+ if (mUnselectedIconWidth > mIconWidth)
+ mIconWidth = mUnselectedIconWidth;
}
-
- // Load the separator if it exists
- child = node->first_node("separator");
- if (child)
- {
- attr = child->first_attribute("color");
- if (attr)
- {
- std::string color = attr->value();
- ConvertStrToColor(color, &mSeparatorColor);
- if (!header_separator_color_specified)
- ConvertStrToColor(color, &mHeaderSeparatorColor);
- }
-
- attr = child->first_attribute("height");
- if (attr) {
- string parsevalue = gui_parse_text(attr->value());
- mSeparatorH = atoi(parsevalue.c_str());
- if (!header_separator_height_specified)
- mHeaderSeparatorH = mSeparatorH;
- }
- }
+ SetMaxIconSize(mIconWidth, mIconHeight);
// Handle the result variable
child = node->first_node("data");
- if (child)
- {
+ if (child) {
attr = child->first_attribute("name");
if (attr)
mVariable = attr->value();
attr = child->first_attribute("default");
if (attr)
DataManager::SetValue(mVariable, attr->value());
+ // Get the currently selected value for the list
+ DataManager::GetValue(mVariable, currentValue);
}
- // Fast scroll colors
- child = node->first_node("fastscroll");
- if (child)
- {
- attr = child->first_attribute("linecolor");
- if(attr)
- ConvertStrToColor(attr->value(), &mFastScrollLineColor);
-
- attr = child->first_attribute("rectcolor");
- if(attr)
- ConvertStrToColor(attr->value(), &mFastScrollRectColor);
-
- attr = child->first_attribute("w");
- if (attr) {
- string parsevalue = gui_parse_text(attr->value());
- mFastScrollW = atoi(parsevalue.c_str());
- }
-
- attr = child->first_attribute("linew");
- if (attr) {
- string parsevalue = gui_parse_text(attr->value());
- mFastScrollLineW = atoi(parsevalue.c_str());
- }
-
- attr = child->first_attribute("rectw");
- if (attr) {
- string parsevalue = gui_parse_text(attr->value());
- mFastScrollRectW = atoi(parsevalue.c_str());
- }
-
- attr = child->first_attribute("recth");
- if (attr) {
- string parsevalue = gui_parse_text(attr->value());
- mFastScrollRectH = atoi(parsevalue.c_str());
- }
- }
-
- // Retrieve the line height
- mFontHeight = gr_getMaxFontHeight(mFont ? mFont->GetResource() : NULL);
- mLineHeight = mFontHeight;
- mHeaderH = mFontHeight;
-
- if (mIconSelected && mIconSelected->GetResource())
- {
- mSelectedIconWidth = gr_get_width(mIconSelected->GetResource());
- mSelectedIconHeight = gr_get_height(mIconSelected->GetResource());
- if (mSelectedIconHeight > (int)mLineHeight)
- mLineHeight = mSelectedIconHeight;
- mIconWidth = mSelectedIconWidth;
- }
-
- if (mIconUnselected && mIconUnselected->GetResource())
- {
- mUnselectedIconWidth = gr_get_width(mIconUnselected->GetResource());
- mUnselectedIconHeight = gr_get_height(mIconUnselected->GetResource());
- if (mUnselectedIconHeight > (int)mLineHeight)
- mLineHeight = mUnselectedIconHeight;
- if (mUnselectedIconWidth > mIconWidth)
- mIconWidth = mUnselectedIconWidth;
- }
-
- if (mHeaderIcon && mHeaderIcon->GetResource())
- {
- mHeaderIconWidth = gr_get_width(mHeaderIcon->GetResource());
- mHeaderIconHeight = gr_get_height(mHeaderIcon->GetResource());
- if (mHeaderIconHeight > mHeaderH)
- mHeaderH = mHeaderIconHeight;
- if (mHeaderIconWidth > mIconWidth)
- mIconWidth = mHeaderIconWidth;
- }
-
- mHeaderH += mLineSpacing + mHeaderSeparatorH;
- actualLineHeight = mLineHeight + mLineSpacing + mSeparatorH;
- if (mHeaderH < actualLineHeight)
- mHeaderH = actualLineHeight;
-
- if (actualLineHeight / 3 > 6)
- touchDebounce = actualLineHeight / 3;
-
- if (mBackground && mBackground->GetResource())
- {
- mBackgroundW = gr_get_width(mBackground->GetResource());
- mBackgroundH = gr_get_height(mBackground->GetResource());
- }
-
- // Get the currently selected value for the list
- DataManager::GetValue(mVariable, currentValue);
-
// Get the data for the list
child = node->first_node("listitem");
if (!child) return;
-
- while (child)
- {
+ while (child) {
ListData data;
attr = child->first_attribute("name");
@@ -348,179 +103,8 @@
GUIListBox::~GUIListBox()
{
-}
-
-int GUIListBox::Render(void)
-{
- if(!isConditionTrue())
- return 0;
-
- // First step, fill background
- gr_color(mBackgroundColor.red, mBackgroundColor.green, mBackgroundColor.blue, 255);
- gr_fill(mRenderX, mRenderY + mHeaderH, mRenderW, mRenderH - mHeaderH);
-
- // 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);
- }
-
- // This tells us how many lines we can actually render
- int lines = (mRenderH - mHeaderH) / (actualLineHeight);
- int line;
-
- int listSize = mList.size();
- int listW = mRenderW;
-
- if (listSize < lines) {
- lines = listSize;
- scrollingY = 0;
- mFastScrollRectX = mFastScrollRectY = -1;
- } else {
- listW -= mFastScrollW; // space for fast scroll
- lines++;
- if (lines < listSize)
- lines++;
- }
-
- void* fontResource = NULL;
- if (mFont) fontResource = mFont->GetResource();
-
- int yPos = mRenderY + mHeaderH + scrollingY;
- int fontOffsetY = (int)((actualLineHeight - mFontHeight) / 2);
- int currentIconHeight = 0, currentIconWidth = 0;
- int currentIconOffsetY = 0, currentIconOffsetX = 0;
- int UnselectedIconOffsetY = (int)((actualLineHeight - mUnselectedIconHeight) / 2), SelectedIconOffsetY = (int)((actualLineHeight - mSelectedIconHeight) / 2);
- int UnselectedIconOffsetX = (mIconWidth - mUnselectedIconWidth) / 2, SelectedIconOffsetX = (mIconWidth - mSelectedIconWidth) / 2;
- int actualSelection = mStart;
-
- if (isHighlighted) {
- int selectY = scrollingY;
-
- // Locate the correct line for highlighting
- while (selectY + actualLineHeight < startSelection) {
- selectY += actualLineHeight;
- actualSelection++;
- }
- if (hasHighlightColor) {
- // Highlight the area
- gr_color(mHighlightColor.red, mHighlightColor.green, mHighlightColor.blue, 255);
- int HighlightHeight = actualLineHeight;
- if (mRenderY + mHeaderH + selectY + actualLineHeight > mRenderH + mRenderY) {
- HighlightHeight = actualLineHeight - (mRenderY + mHeaderH + selectY + actualLineHeight - mRenderH - mRenderY);
- }
- gr_fill(mRenderX, mRenderY + mHeaderH + selectY, mRenderW, HighlightHeight);
- }
- }
-
- for (line = 0; line < lines; line++)
- {
- Resource* icon;
- std::string label;
-
- if (line + mStart >= listSize)
- continue;
-
- label = mList.at(line + mStart).displayName;
- if (isHighlighted && hasFontHighlightColor && line + mStart == actualSelection) {
- // Use the highlight color for the font
- gr_color(mFontHighlightColor.red, mFontHighlightColor.green, mFontHighlightColor.blue, 255);
- } else {
- // Set the color for the font
- gr_color(mFontColor.red, mFontColor.green, mFontColor.blue, 255);
- }
-
- if (mList.at(line + mStart).selected != 0)
- {
- icon = mIconSelected;
- currentIconHeight = mSelectedIconHeight;
- currentIconWidth = mSelectedIconWidth;
- currentIconOffsetY = SelectedIconOffsetY;
- currentIconOffsetX = SelectedIconOffsetX;
- }
- else
- {
- icon = mIconUnselected;
- currentIconHeight = mSelectedIconHeight;
- currentIconWidth = mSelectedIconWidth;
- currentIconOffsetY = SelectedIconOffsetY;
- currentIconOffsetX = SelectedIconOffsetX;
- }
-
- if (icon && icon->GetResource())
- {
- int rect_y = 0, image_y = (yPos + currentIconOffsetY);
- if (image_y + currentIconHeight > mRenderY + mRenderH)
- rect_y = mRenderY + mRenderH - image_y;
- else
- rect_y = currentIconHeight;
- gr_blit(icon->GetResource(), 0, 0, currentIconWidth, rect_y, mRenderX + currentIconOffsetX, image_y);
- }
- gr_textExWH(mRenderX + mIconWidth + 5, yPos + fontOffsetY, label.c_str(), fontResource, mRenderX + listW, mRenderY + mRenderH);
-
- // Add the separator
- if (yPos + actualLineHeight < mRenderH + mRenderY) {
- gr_color(mSeparatorColor.red, mSeparatorColor.green, mSeparatorColor.blue, 255);
- gr_fill(mRenderX, yPos + actualLineHeight - mSeparatorH, listW, mSeparatorH);
- }
-
- // Move the yPos
- yPos += actualLineHeight;
- }
-
- // Render the Header (last so that it overwrites the top most row for per pixel scrolling)
- // First step, fill background
- gr_color(mHeaderBackgroundColor.red, mHeaderBackgroundColor.green, mHeaderBackgroundColor.blue, 255);
- gr_fill(mRenderX, mRenderY, mRenderW, mHeaderH);
-
- // Now, we need the header (icon + text)
- yPos = mRenderY;
- {
- Resource* headerIcon;
- int mIconOffsetX = 0;
-
- // render the icon if it exists
- headerIcon = mHeaderIcon;
- if (headerIcon && headerIcon->GetResource())
- {
- gr_blit(headerIcon->GetResource(), 0, 0, mHeaderIconWidth, mHeaderIconHeight, mRenderX + ((mHeaderIconWidth - mIconWidth) / 2), (yPos + (int)((mHeaderH - mHeaderIconHeight) / 2)));
- mIconOffsetX = mIconWidth;
- }
-
- // render the text
- gr_color(mHeaderFontColor.red, mHeaderFontColor.green, mHeaderFontColor.blue, 255);
- gr_textExWH(mRenderX + mIconOffsetX + 5, yPos + (int)((mHeaderH - mFontHeight) / 2), mLastValue.c_str(), fontResource, mRenderX + mRenderW, mRenderY + mRenderH);
-
- // Add the separator
- gr_color(mHeaderSeparatorColor.red, mHeaderSeparatorColor.green, mHeaderSeparatorColor.blue, 255);
- gr_fill(mRenderX, yPos + mHeaderH - mHeaderSeparatorH, mRenderW, mHeaderSeparatorH);
- }
-
- // render fast scroll
- lines = (mRenderH - mHeaderH) / (actualLineHeight);
- if(mFastScrollW > 0 && listSize > lines)
- {
- int startX = listW + mRenderX;
- int fWidth = mRenderW - listW;
- int fHeight = mRenderH - mHeaderH;
-
- // line
- gr_color(mFastScrollLineColor.red, mFastScrollLineColor.green, mFastScrollLineColor.blue, 255);
- gr_fill(startX + fWidth/2, mRenderY + mHeaderH, mFastScrollLineW, mRenderH - mHeaderH);
-
- // rect
- int pct = ((mStart*actualLineHeight - scrollingY)*100)/((listSize)*actualLineHeight-lines*actualLineHeight);
- mFastScrollRectX = startX + (fWidth - mFastScrollRectW)/2;
- mFastScrollRectY = mRenderY+mHeaderH + ((fHeight - mFastScrollRectH)*pct)/100;
-
- gr_color(mFastScrollRectColor.red, mFastScrollRectColor.green, mFastScrollRectColor.blue, 255);
- gr_fill(mFastScrollRectX, mFastScrollRectY, mFastScrollRectW, mFastScrollRectH);
- }
-
- mUpdate = 0;
- return 0;
+ delete mIconSelected;
+ delete mIconUnselected;
}
int GUIListBox::Update(void)
@@ -528,306 +112,75 @@
if(!isConditionTrue())
return 0;
- if (!mHeaderIsStatic) {
- std::string newValue = gui_parse_text(mHeaderText);
- if (mLastValue != newValue) {
- mLastValue = newValue;
- mUpdate = 1;
- }
- }
+ GUIScrollList::Update();
- if (mUpdate)
- {
+ if (mUpdate) {
mUpdate = 0;
if (Render() == 0)
return 2;
}
-
- // Handle kinetic scrolling
- if (scrollingSpeed == 0) {
- // Do nothing
- } else if (scrollingSpeed > 0) {
- if (scrollingSpeed < ((int) (actualLineHeight * 2.5))) {
- scrollingY += scrollingSpeed;
- scrollingSpeed -= SCROLLING_SPEED_DECREMENT;
- } else {
- scrollingY += ((int) (actualLineHeight * 2.5));
- scrollingSpeed -= SCROLLING_SPEED_DECREMENT;
- }
- while (mStart && scrollingY > 0) {
- mStart--;
- scrollingY -= actualLineHeight;
- }
- if (mStart == 0 && scrollingY > 0) {
- scrollingY = 0;
- scrollingSpeed = 0;
- } else if (scrollingSpeed < SCROLLING_FLOOR)
- scrollingSpeed = 0;
- mUpdate = 1;
- } else if (scrollingSpeed < 0) {
- int totalSize = mList.size();
- int lines = (mRenderH - mHeaderH) / (actualLineHeight);
-
- if (totalSize > lines) {
- int bottom_offset = ((int)(mRenderH) - mHeaderH) - (lines * actualLineHeight);
-
- bottom_offset -= actualLineHeight;
-
- if (abs(scrollingSpeed) < ((int) (actualLineHeight * 2.5))) {
- scrollingY += scrollingSpeed;
- scrollingSpeed += SCROLLING_SPEED_DECREMENT;
- } else {
- scrollingY -= ((int) (actualLineHeight * 2.5));
- scrollingSpeed += SCROLLING_SPEED_DECREMENT;
- }
- while (mStart + lines + (bottom_offset ? 1 : 0) < totalSize && abs(scrollingY) > actualLineHeight) {
- mStart++;
- scrollingY += actualLineHeight;
- }
- if (bottom_offset != 0 && mStart + lines + 1 >= totalSize && scrollingY <= bottom_offset) {
- mStart = totalSize - lines - 1;
- scrollingY = bottom_offset;
- } else if (mStart + lines >= totalSize && scrollingY < 0) {
- mStart = totalSize - lines;
- scrollingY = 0;
- } else if (scrollingSpeed * -1 < SCROLLING_FLOOR)
- scrollingSpeed = 0;
- mUpdate = 1;
- }
- }
-
- return 0;
-}
-
-int GUIListBox::GetSelection(int x, int y)
-{
- // We only care about y position
- if (y < mRenderY || y - mRenderY <= mHeaderH || y - mRenderY > mRenderH) return -1;
- return (y - mRenderY - mHeaderH);
-}
-
-int GUIListBox::NotifyTouch(TOUCH_STATE state, int x, int y)
-{
- if(!isConditionTrue())
- return -1;
-
- static int lastY = 0, last2Y = 0, fastScroll = 0;
- int selection = 0;
-
- switch (state)
- {
- case TOUCH_START:
- if (scrollingSpeed != 0)
- startSelection = -1;
- else
- startSelection = GetSelection(x,y);
- isHighlighted = (startSelection > -1);
- if (isHighlighted)
- mUpdate = 1;
- startY = lastY = last2Y = y;
- scrollingSpeed = 0;
-
- if(mFastScrollRectX != -1 && x >= mRenderX + mRenderW - mFastScrollW)
- fastScroll = 1;
- break;
-
- case TOUCH_DRAG:
- // Check if we dragged out of the selection window
- if (GetSelection(x, y) == -1) {
- last2Y = lastY = 0;
- if (isHighlighted) {
- isHighlighted = false;
- mUpdate = 1;
- }
- break;
- }
-
- // Fast scroll
- if(fastScroll)
- {
- int pct = ((y-mRenderY-mHeaderH)*100)/(mRenderH-mHeaderH);
- int totalSize = mList.size();
- int lines = (mRenderH - mHeaderH) / (actualLineHeight);
-
- float l = float((totalSize-lines)*pct)/100;
- if(l + lines >= totalSize)
- {
- mStart = totalSize - lines;
- scrollingY = 0;
- }
- else
- {
- mStart = l;
- scrollingY = -(l - int(l))*actualLineHeight;
- }
-
- startSelection = -1;
- mUpdate = 1;
- scrollingSpeed = 0;
- isHighlighted = false;
- break;
- }
-
- // Provide some debounce on initial touches
- if (startSelection != -1 && abs(y - startY) < touchDebounce) {
- isHighlighted = true;
- mUpdate = 1;
- break;
- }
-
- isHighlighted = false;
- last2Y = lastY;
- lastY = y;
- startSelection = -1;
-
- // Handle scrolling
- scrollingY += y - startY;
- startY = y;
- while(mStart && scrollingY > 0) {
- mStart--;
- scrollingY -= actualLineHeight;
- }
- if (mStart == 0 && scrollingY > 0)
- scrollingY = 0;
- {
- int totalSize = mList.size();
- int lines = (mRenderH - mHeaderH) / (actualLineHeight);
-
- if (totalSize > lines) {
- int bottom_offset = ((int)(mRenderH) - mHeaderH) - (lines * actualLineHeight);
-
- bottom_offset -= actualLineHeight;
-
- while (mStart + lines + (bottom_offset ? 1 : 0) < totalSize && abs(scrollingY) > actualLineHeight) {
- mStart++;
- scrollingY += actualLineHeight;
- }
- if (bottom_offset != 0 && mStart + lines + 1 >= totalSize && scrollingY <= bottom_offset) {
- mStart = totalSize - lines - 1;
- scrollingY = bottom_offset;
- } else if (mStart + lines >= totalSize && scrollingY < 0) {
- mStart = totalSize - lines;
- scrollingY = 0;
- }
- } else
- scrollingY = 0;
- }
- mUpdate = 1;
- break;
-
- case TOUCH_RELEASE:
- isHighlighted = false;
- fastScroll = 0;
- if (startSelection >= 0)
- {
- // We've selected an item!
- std::string str;
-
- int listSize = mList.size();
- int selectY = scrollingY, actualSelection = mStart;
-
- // Move the selection to the proper place in the array
- while (selectY + actualLineHeight < startSelection) {
- selectY += actualLineHeight;
- actualSelection++;
- }
-
- if (actualSelection < listSize && !mVariable.empty())
- {
- int i;
- for (i=0; i<listSize; i++)
- mList.at(i).selected = 0;
-
- str = mList.at(actualSelection).variableValue;
- mList.at(actualSelection).selected = 1;
- DataManager::SetValue(mVariable, str);
- mUpdate = 1;
-
- DataManager::Vibrate("tw_button_vibrate");
- }
- } else {
- // This is for kinetic scrolling
- scrollingSpeed = lastY - last2Y;
- if (abs(scrollingSpeed) > SCROLLING_FLOOR)
- scrollingSpeed *= SCROLLING_MULTIPLIER;
- else
- scrollingSpeed = 0;
- }
- case TOUCH_REPEAT:
- case TOUCH_HOLD:
- break;
- }
return 0;
}
int GUIListBox::NotifyVarChange(const std::string& varName, const std::string& value)
{
- GUIObject::NotifyVarChange(varName, value);
-
if(!isConditionTrue())
return 0;
- if (!mHeaderIsStatic) {
- std::string newValue = gui_parse_text(mHeaderText);
- if (mLastValue != newValue) {
- mLastValue = newValue;
- mStart = 0;
- scrollingY = 0;
- scrollingSpeed = 0;
- mUpdate = 1;
- }
- }
- if (varName == mVariable)
- {
- int i, listSize = mList.size(), selected_index = 0;
+ GUIScrollList::NotifyVarChange(varName, value);
+
+ // Check to see if the variable that we are using to store the list selected value has been updated
+ if (varName == mVariable) {
+ int i, listSize = mList.size();
currentValue = value;
- for (i=0; i<listSize; i++) {
+ for (i = 0; i < listSize; i++) {
if (mList.at(i).variableValue == currentValue) {
mList.at(i).selected = 1;
- selected_index = i;
+ SetVisibleListLocation(i);
} else
mList.at(i).selected = 0;
}
-
- int lines = mRenderH / (mLineHeight + mLineSpacing);
- int line;
-
- if (selected_index > mStart + lines - 1)
- mStart = selected_index;
- if (mStart > listSize - lines) {
- mStart = listSize - lines;
- } else if (selected_index < mStart) {
- mStart = selected_index;
- }
-
mUpdate = 1;
return 0;
}
return 0;
}
-int GUIListBox::SetRenderPos(int x, int y, int w /* = 0 */, int h /* = 0 */)
-{
- mRenderX = x;
- mRenderY = y;
- if (w || h)
- {
- mRenderW = w;
- mRenderH = h;
- }
- SetActionPos(mRenderX, mRenderY, mRenderW, mRenderH);
- mUpdate = 1;
- return 0;
-}
-
void GUIListBox::SetPageFocus(int inFocus)
{
- if (inFocus)
- {
+ GUIScrollList::SetPageFocus(inFocus);
+ if (inFocus) {
DataManager::GetValue(mVariable, currentValue);
NotifyVarChange(mVariable, currentValue);
- mUpdate = 1;
}
}
+
+size_t GUIListBox::GetItemCount()
+{
+ return mList.size();
+}
+
+int GUIListBox::GetListItem(size_t item_index, Resource*& icon, std::string &text)
+{
+ text = mList.at(item_index).displayName;
+ if (mList.at(item_index).selected)
+ icon = mIconSelected;
+ else
+ icon = mIconUnselected;
+ return 0;
+}
+
+void GUIListBox::NotifySelect(size_t item_selected)
+{
+ for (size_t i = 0; i < mList.size(); i++) {
+ mList.at(i).selected = 0;
+ }
+ if (item_selected < mList.size()) {
+ mList.at(item_selected).selected = 1;
+ string str = mList.at(item_selected).variableValue;
+ DataManager::SetValue(mVariable, str);
+ }
+ mUpdate = 1;
+}