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implemented wrapping horizontal scrolling for deck selection screens

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This commit is contained in:
techdragon.nguyen@gmail.com
2010-11-25 11:32:18 +00:00
parent e4c8469490
commit 77cfdf4571
2 changed files with 45 additions and 12 deletions
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7
projects/mtg/include/DeckMenuItem.h
View File

@@ -12,6 +12,9 @@ class DeckMenuItem: public JGuiObject
{
private:
bool mHasFocus;
bool mScrollEnabled;
int mRemainder; // difference between the number of characters shown and full title
DeckMenu* parent;
int fontId;
string mText;
@@ -19,6 +22,8 @@ class DeckMenuItem: public JGuiObject
public:
string imageFilename;
string desc;
string displayName;
int mScrollTimer;
DeckMetaData *meta;
float mX;
@@ -26,6 +31,8 @@ class DeckMenuItem: public JGuiObject
void Relocate(float x, float y);
float GetWidth();
string GetText() { return mText; }
string GetDescription() { return desc; }
bool hasFocus();
DeckMenuItem(DeckMenu* _parent, int id, int fontId, string text, float x, float y, bool hasFocus = false, bool autoTranslate = false, DeckMetaData *meta = NULL);

50
projects/mtg/src/DeckMenuItem.cpp
View File

@@ -5,23 +5,31 @@
#include "WResourceManager.h"
#define ITEM_PX_WIDTH 190.f
const int kHorizontalScrollSpeed = 10; // lower numbers mean faster scrolling
DeckMenuItem::DeckMenuItem(DeckMenu* _parent, int id, int fontId, string text, float x, float y, bool hasFocus, bool autoTranslate, DeckMetaData *deckMetaData)
: JGuiObject(id), parent(_parent), fontId(fontId), mX(x), mY(y)
{
if (autoTranslate)
mText = _(text);
else
mText = text;
//trim the string so that its width fits in the background.
//in the future we might want to replace this with a horizontal scrolling of long strings
WFont * mFont = resources.GetWFont(fontId);
while (mFont->GetStringWidth(mText.c_str()) > ITEM_PX_WIDTH)
mText.erase(mText.size() - 1);
mText = trim(text);
displayName = text;
if (autoTranslate)
mText = _(mText);
WFont * mFont = resources.GetWFont(fontId);
while (mFont->GetStringWidth(displayName.c_str()) > ITEM_PX_WIDTH)
displayName.erase(displayName.size() - 1);
mScrollTimer = 0;
mHasFocus = hasFocus;
if (hasFocus)
mScrollEnabled = (displayName.length() != mText.length()) ;
if (mScrollEnabled)
mText.append(" "); // add padding to reduce jerkiness when text scrolls
mRemainder = ( mText.length() - displayName.length() );
if (hasFocus)
Entering();
meta = deckMetaData;
@@ -35,7 +43,25 @@ DeckMenuItem::DeckMenuItem(DeckMenu* _parent, int id, int fontId, string text, f
void DeckMenuItem::RenderWithOffset(float yOffset)
{
WFont * mFont = resources.GetWFont(fontId);
mFont->DrawString(mText.c_str(), mX, mY + yOffset, JGETEXT_CENTER);
string menuItemString = displayName;
size_t offset = 0;
if ( mHasFocus && mScrollEnabled )
{
offset = mScrollTimer / kHorizontalScrollSpeed;
int wrapIndexEnd = mText.length() - offset;
int nbWrapAroundChars = displayName.length() - wrapIndexEnd;
menuItemString = mText.substr(offset, displayName.length());
if ( nbWrapAroundChars > 0 )
// need to append start of title to end of menuItemString
menuItemString.append( mText.substr(0, nbWrapAroundChars ) );
}
mFont->DrawString(menuItemString.c_str(), mX, mY + yOffset, JGETEXT_CENTER);
if ( mHasFocus && mScrollEnabled && offset == mText.length())
mScrollTimer = 0;
else if (mHasFocus && mScrollEnabled)
mScrollTimer++;
}
void DeckMenuItem::Render()