raygui/examples/custom_file_dialog/gui_window_file_dialog.h
2024-01-02 21:01:38 +01:00

626 lines
26 KiB
C

/*******************************************************************************************
*
* Window File Dialog v1.2 - Modal file dialog to open/save files
*
* MODULE USAGE:
* #define GUI_WINDOW_FILE_DIALOG_IMPLEMENTATION
* #include "gui_window_file_dialog.h"
*
* INIT: GuiWindowFileDialogState state = GuiInitWindowFileDialog();
* DRAW: GuiWindowFileDialog(&state);
*
* NOTE: This module depends on some raylib file system functions:
* - LoadDirectoryFiles()
* - UnloadDirectoryFiles()
* - GetWorkingDirectory()
* - DirectoryExists()
* - FileExists()
*
* LICENSE: zlib/libpng
*
* Copyright (c) 2019-2024 Ramon Santamaria (@raysan5)
*
* This software is provided "as-is", without any express or implied warranty. In no event
* will the authors be held liable for any damages arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose, including commercial
* applications, and to alter it and redistribute it freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not claim that you
* wrote the original software. If you use this software in a product, an acknowledgment
* in the product documentation would be appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be misrepresented
* as being the original software.
*
* 3. This notice may not be removed or altered from any source distribution.
*
**********************************************************************************************/
#include "raylib.h"
#ifndef GUI_WINDOW_FILE_DIALOG_H
#define GUI_WINDOW_FILE_DIALOG_H
// Gui file dialog context data
typedef struct {
// Window management variables
bool windowActive;
Rectangle windowBounds;
Vector2 panOffset;
bool dragMode;
bool supportDrag;
// UI variables
bool dirPathEditMode;
char dirPathText[1024];
int filesListScrollIndex;
bool filesListEditMode;
int filesListActive;
bool fileNameEditMode;
char fileNameText[1024];
bool SelectFilePressed;
bool CancelFilePressed;
int fileTypeActive;
int itemFocused;
// Custom state variables
FilePathList dirFiles;
char filterExt[256];
char dirPathTextCopy[1024];
char fileNameTextCopy[1024];
int prevFilesListActive;
bool saveFileMode;
} GuiWindowFileDialogState;
#ifdef __cplusplus
extern "C" { // Prevents name mangling of functions
#endif
//----------------------------------------------------------------------------------
// Defines and Macros
//----------------------------------------------------------------------------------
//...
//----------------------------------------------------------------------------------
// Types and Structures Definition
//----------------------------------------------------------------------------------
// ...
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
//...
//----------------------------------------------------------------------------------
// Module Functions Declaration
//----------------------------------------------------------------------------------
GuiWindowFileDialogState InitGuiWindowFileDialog(const char *initPath);
void GuiWindowFileDialog(GuiWindowFileDialogState *state);
#ifdef __cplusplus
}
#endif
#endif // GUI_WINDOW_FILE_DIALOG_H
/***********************************************************************************
*
* GUI_WINDOW_FILE_DIALOG IMPLEMENTATION
*
************************************************************************************/
#if defined(GUI_WINDOW_FILE_DIALOG_IMPLEMENTATION)
#include "../../src/raygui.h"
#include <string.h> // Required for: strcpy()
//----------------------------------------------------------------------------------
// Defines and Macros
//----------------------------------------------------------------------------------
#define MAX_DIRECTORY_FILES 2048
#define MAX_ICON_PATH_LENGTH 512
#ifdef _WIN32
#define PATH_SEPERATOR "\\"
#else
#define PATH_SEPERATOR "/"
#endif
//----------------------------------------------------------------------------------
// Types and Structures Definition
//----------------------------------------------------------------------------------
#if defined(USE_CUSTOM_LISTVIEW_FILEINFO)
// Detailed file info type
typedef struct FileInfo {
const char *name;
int size;
int modTime;
int type;
int icon;
} FileInfo;
#else
// Filename only
typedef char *FileInfo; // Files are just a path string
#endif
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
FileInfo *dirFilesIcon = NULL; // Path string + icon (for fancy drawing)
//----------------------------------------------------------------------------------
// Internal Module Functions Definition
//----------------------------------------------------------------------------------
// Read files in new path
static void ReloadDirectoryFiles(GuiWindowFileDialogState *state);
#if defined(USE_CUSTOM_LISTVIEW_FILEINFO)
// List View control for files info with extended parameters
static int GuiListViewFiles(Rectangle bounds, FileInfo *files, int count, int *focus, int *scrollIndex, int active);
#endif
//----------------------------------------------------------------------------------
// Module Functions Definition
//----------------------------------------------------------------------------------
GuiWindowFileDialogState InitGuiWindowFileDialog(const char *initPath)
{
GuiWindowFileDialogState state = { 0 };
// Init window data
state.windowBounds = (Rectangle){ GetScreenWidth()/2 - 440/2, GetScreenHeight()/2 - 310/2, 440, 310 };
state.windowActive = false;
state.supportDrag = true;
state.dragMode = false;
state.panOffset = (Vector2){ 0, 0 };
// Init path data
state.dirPathEditMode = false;
state.filesListActive = -1;
state.prevFilesListActive = state.filesListActive;
state.filesListScrollIndex = 0;
state.fileNameEditMode = false;
state.SelectFilePressed = false;
state.CancelFilePressed = false;
state.fileTypeActive = 0;
strcpy(state.fileNameText, "\0");
// Custom variables initialization
if (initPath && DirectoryExists(initPath))
{
strcpy(state.dirPathText, initPath);
}
else if (initPath && FileExists(initPath))
{
strcpy(state.dirPathText, GetDirectoryPath(initPath));
strcpy(state.fileNameText, GetFileName(initPath));
}
else strcpy(state.dirPathText, GetWorkingDirectory());
// TODO: Why we keep a copy?
strcpy(state.dirPathTextCopy, state.dirPathText);
strcpy(state.fileNameTextCopy, state.fileNameText);
state.filterExt[0] = '\0';
//strcpy(state.filterExt, "all");
state.dirFiles.count = 0;
return state;
}
// Update and draw file dialog
void GuiWindowFileDialog(GuiWindowFileDialogState *state)
{
if (state->windowActive)
{
// Update window dragging
//----------------------------------------------------------------------------------------
if (state->supportDrag)
{
Vector2 mousePosition = GetMousePosition();
if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON))
{
// Window can be dragged from the top window bar
if (CheckCollisionPointRec(mousePosition, (Rectangle){ state->windowBounds.x, state->windowBounds.y, (float)state->windowBounds.width, RAYGUI_WINDOWBOX_STATUSBAR_HEIGHT }))
{
state->dragMode = true;
state->panOffset.x = mousePosition.x - state->windowBounds.x;
state->panOffset.y = mousePosition.y - state->windowBounds.y;
}
}
if (state->dragMode)
{
state->windowBounds.x = (mousePosition.x - state->panOffset.x);
state->windowBounds.y = (mousePosition.y - state->panOffset.y);
// Check screen limits to avoid moving out of screen
if (state->windowBounds.x < 0) state->windowBounds.x = 0;
else if (state->windowBounds.x > (GetScreenWidth() - state->windowBounds.width)) state->windowBounds.x = GetScreenWidth() - state->windowBounds.width;
if (state->windowBounds.y < 0) state->windowBounds.y = 0;
else if (state->windowBounds.y > (GetScreenHeight() - state->windowBounds.height)) state->windowBounds.y = GetScreenHeight() - state->windowBounds.height;
if (IsMouseButtonReleased(MOUSE_LEFT_BUTTON)) state->dragMode = false;
}
}
//----------------------------------------------------------------------------------------
// Load dirFilesIcon and state->dirFiles lazily on windows open
// NOTE: They are automatically unloaded at fileDialog closing
//----------------------------------------------------------------------------------------
if (dirFilesIcon == NULL)
{
dirFilesIcon = (FileInfo *)RL_CALLOC(MAX_DIRECTORY_FILES, sizeof(FileInfo)); // Max files to read
for (int i = 0; i < MAX_DIRECTORY_FILES; i++) dirFilesIcon[i] = (char *)RL_CALLOC(MAX_ICON_PATH_LENGTH, 1); // Max file name length
}
// Load current directory files
if (state->dirFiles.paths == NULL) ReloadDirectoryFiles(state);
//----------------------------------------------------------------------------------------
// Draw window and controls
//----------------------------------------------------------------------------------------
state->windowActive = !GuiWindowBox(state->windowBounds, "#198# Select File Dialog");
// Draw previous directory button + logic
if (GuiButton((Rectangle){ state->windowBounds.x + state->windowBounds.width - 48, state->windowBounds.y + 24 + 12, 40, 24 }, "< .."))
{
// Move dir path one level up
strcpy(state->dirPathText, GetPrevDirectoryPath(state->dirPathText));
// Reload directory files (frees previous list)
ReloadDirectoryFiles(state);
state->filesListActive = -1;
memset(state->fileNameText, 0, 1024);
memset(state->fileNameTextCopy, 0, 1024);
}
// Draw current directory text box info + path editing logic
if (GuiTextBox((Rectangle){ state->windowBounds.x + 8, state->windowBounds.y + 24 + 12, state->windowBounds.width - 48 - 16, 24 }, state->dirPathText, 1024, state->dirPathEditMode))
{
if (state->dirPathEditMode)
{
// Verify if a valid path has been introduced
if (DirectoryExists(state->dirPathText))
{
// Reload directory files (frees previous list)
ReloadDirectoryFiles(state);
strcpy(state->dirPathTextCopy, state->dirPathText);
}
else strcpy(state->dirPathText, state->dirPathTextCopy);
}
state->dirPathEditMode = !state->dirPathEditMode;
}
// List view elements are aligned left
int prevTextAlignment = GuiGetStyle(LISTVIEW, TEXT_ALIGNMENT);
int prevElementsHeight = GuiGetStyle(LISTVIEW, LIST_ITEMS_HEIGHT);
GuiSetStyle(LISTVIEW, TEXT_ALIGNMENT, TEXT_ALIGN_LEFT);
GuiSetStyle(LISTVIEW, LIST_ITEMS_HEIGHT, 24);
# if defined(USE_CUSTOM_LISTVIEW_FILEINFO)
state->filesListActive = GuiListViewFiles((Rectangle){ state->position.x + 8, state->position.y + 48 + 20, state->windowBounds.width - 16, state->windowBounds.height - 60 - 16 - 68 }, fileInfo, state->dirFiles.count, &state->itemFocused, &state->filesListScrollIndex, state->filesListActive);
# else
GuiListViewEx((Rectangle){ state->windowBounds.x + 8, state->windowBounds.y + 48 + 20, state->windowBounds.width - 16, state->windowBounds.height - 60 - 16 - 68 },
(const char**)dirFilesIcon, state->dirFiles.count, &state->filesListScrollIndex, &state->filesListActive, &state->itemFocused);
# endif
GuiSetStyle(LISTVIEW, TEXT_ALIGNMENT, prevTextAlignment);
GuiSetStyle(LISTVIEW, LIST_ITEMS_HEIGHT, prevElementsHeight);
// Check if a path has been selected, if it is a directory, move to that directory (and reload paths)
if ((state->filesListActive >= 0) && (state->filesListActive != state->prevFilesListActive))
//&& (IsMouseButtonPressed(MOUSE_LEFT_BUTTON) || IsKeyPressed(KEY_ENTER) || IsKeyPressed(KEY_DPAD_A)))
{
strcpy(state->fileNameText, GetFileName(state->dirFiles.paths[state->filesListActive]));
if (DirectoryExists(TextFormat("%s/%s", state->dirPathText, state->fileNameText)))
{
if (TextIsEqual(state->fileNameText, "..")) strcpy(state->dirPathText, GetPrevDirectoryPath(state->dirPathText));
else strcpy(state->dirPathText, TextFormat("%s/%s", (strcmp(state->dirPathText, "/") == 0)? "" : state->dirPathText, state->fileNameText));
strcpy(state->dirPathTextCopy, state->dirPathText);
// Reload directory files (frees previous list)
ReloadDirectoryFiles(state);
strcpy(state->dirPathTextCopy, state->dirPathText);
state->filesListActive = -1;
strcpy(state->fileNameText, "\0");
strcpy(state->fileNameTextCopy, state->fileNameText);
}
state->prevFilesListActive = state->filesListActive;
}
// Draw bottom controls
//--------------------------------------------------------------------------------------
GuiLabel((Rectangle){ state->windowBounds.x + 8, state->windowBounds.y + state->windowBounds.height - 68, 60, 24 }, "File name:");
if (GuiTextBox((Rectangle){ state->windowBounds.x + 72, state->windowBounds.y + state->windowBounds.height - 68, state->windowBounds.width - 184, 24 }, state->fileNameText, 128, state->fileNameEditMode))
{
if (*state->fileNameText)
{
// Verify if a valid filename has been introduced
if (FileExists(TextFormat("%s/%s", state->dirPathText, state->fileNameText)))
{
// Select filename from list view
for (int i = 0; i < state->dirFiles.count; i++)
{
if (TextIsEqual(state->fileNameText, state->dirFiles.paths[i]))
{
state->filesListActive = i;
strcpy(state->fileNameTextCopy, state->fileNameText);
break;
}
}
}
else if (!state->saveFileMode)
{
strcpy(state->fileNameText, state->fileNameTextCopy);
}
}
state->fileNameEditMode = !state->fileNameEditMode;
}
GuiLabel((Rectangle){ state->windowBounds.x + 8, state->windowBounds.y + state->windowBounds.height - 24 - 12, 68, 24 }, "File filter:");
GuiComboBox((Rectangle){ state->windowBounds.x + 72, state->windowBounds.y + state->windowBounds.height - 24 - 12, state->windowBounds.width - 184, 24 }, "All files", &state->fileTypeActive);
state->SelectFilePressed = GuiButton((Rectangle){ state->windowBounds.x + state->windowBounds.width - 96 - 8, state->windowBounds.y + state->windowBounds.height - 68, 96, 24 }, "Select");
if (GuiButton((Rectangle){ state->windowBounds.x + state->windowBounds.width - 96 - 8, state->windowBounds.y + state->windowBounds.height - 24 - 12, 96, 24 }, "Cancel")) state->windowActive = false;
//--------------------------------------------------------------------------------------
// Exit on file selected
if (state->SelectFilePressed) state->windowActive = false;
// File dialog has been closed, free all memory before exit
if (!state->windowActive)
{
// Free dirFilesIcon memory
for (int i = 0; i < MAX_DIRECTORY_FILES; i++) RL_FREE(dirFilesIcon[i]);
RL_FREE(dirFilesIcon);
dirFilesIcon = NULL;
// Unload directory file paths
UnloadDirectoryFiles(state->dirFiles);
// Reset state variables
state->dirFiles.count = 0;
state->dirFiles.capacity = 0;
state->dirFiles.paths = NULL;
}
}
}
// Compare two files from a directory
static inline int FileCompare(const char *d1, const char *d2, const char *dir)
{
const bool b1 = DirectoryExists(TextFormat("%s/%s", dir, d1));
const bool b2 = DirectoryExists(TextFormat("%s/%s", dir, d2));
if (b1 && !b2) return -1;
if (!b1 && b2) return 1;
if (!FileExists(TextFormat("%s/%s", dir, d1))) return 1;
if (!FileExists(TextFormat("%s/%s", dir, d2))) return -1;
return strcmp(d1, d2);
}
// Read files in new path
static void ReloadDirectoryFiles(GuiWindowFileDialogState *state)
{
UnloadDirectoryFiles(state->dirFiles);
state->dirFiles = LoadDirectoryFilesEx(state->dirPathText, (state->filterExt[0] == '\0')? NULL : state->filterExt, false);
state->itemFocused = 0;
// Reset dirFilesIcon memory
for (int i = 0; i < MAX_DIRECTORY_FILES; i++) memset(dirFilesIcon[i], 0, MAX_ICON_PATH_LENGTH);
// Copy paths as icon + fileNames into dirFilesIcon
for (int i = 0; i < state->dirFiles.count; i++)
{
if (IsPathFile(state->dirFiles.paths[i]))
{
// Path is a file, a file icon for convenience (for some recognized extensions)
if (IsFileExtension(state->dirFiles.paths[i], ".png;.bmp;.tga;.gif;.jpg;.jpeg;.psd;.hdr;.qoi;.dds;.pkm;.ktx;.pvr;.astc"))
{
strcpy(dirFilesIcon[i], TextFormat("#12#%s", GetFileName(state->dirFiles.paths[i])));
}
else if (IsFileExtension(state->dirFiles.paths[i], ".wav;.mp3;.ogg;.flac;.xm;.mod;.it;.wma;.aiff"))
{
strcpy(dirFilesIcon[i], TextFormat("#11#%s", GetFileName(state->dirFiles.paths[i])));
}
else if (IsFileExtension(state->dirFiles.paths[i], ".txt;.info;.md;.nfo;.xml;.json;.c;.cpp;.cs;.lua;.py;.glsl;.vs;.fs"))
{
strcpy(dirFilesIcon[i], TextFormat("#10#%s", GetFileName(state->dirFiles.paths[i])));
}
else if (IsFileExtension(state->dirFiles.paths[i], ".exe;.bin;.raw;.msi"))
{
strcpy(dirFilesIcon[i], TextFormat("#200#%s", GetFileName(state->dirFiles.paths[i])));
}
else strcpy(dirFilesIcon[i], TextFormat("#218#%s", GetFileName(state->dirFiles.paths[i])));
}
else
{
// Path is a directory, add a directory icon
strcpy(dirFilesIcon[i], TextFormat("#1#%s", GetFileName(state->dirFiles.paths[i])));
}
}
}
#if defined(USE_CUSTOM_LISTVIEW_FILEINFO)
// List View control for files info with extended parameters
static int GuiListViewFiles(Rectangle bounds, FileInfo *files, int count, int *focus, int *scrollIndex, int *active)
{
int result = 0;
GuiState state = guiState;
int itemFocused = (focus == NULL)? -1 : *focus;
int itemSelected = *active;
// Check if we need a scroll bar
bool useScrollBar = false;
if ((GuiGetStyle(LISTVIEW, LIST_ITEMS_HEIGHT) + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING))*count > bounds.height) useScrollBar = true;
// Define base item rectangle [0]
Rectangle itemBounds = { 0 };
itemBounds.x = bounds.x + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING);
itemBounds.y = bounds.y + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING) + GuiGetStyle(DEFAULT, BORDER_WIDTH);
itemBounds.width = bounds.width - 2*GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING) - GuiGetStyle(DEFAULT, BORDER_WIDTH);
itemBounds.height = GuiGetStyle(LISTVIEW, LIST_ITEMS_HEIGHT);
if (useScrollBar) itemBounds.width -= GuiGetStyle(LISTVIEW, SCROLLBAR_WIDTH);
// Get items on the list
int visibleItems = bounds.height/(GuiGetStyle(LISTVIEW, LIST_ITEMS_HEIGHT) + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING));
if (visibleItems > count) visibleItems = count;
int startIndex = (scrollIndex == NULL)? 0 : *scrollIndex;
if ((startIndex < 0) || (startIndex > (count - visibleItems))) startIndex = 0;
int endIndex = startIndex + visibleItems;
// Update control
//--------------------------------------------------------------------
if ((state != GUI_STATE_DISABLED) && !guiLocked)
{
Vector2 mousePoint = GetMousePosition();
// Check mouse inside list view
if (CheckCollisionPointRec(mousePoint, bounds))
{
state = GUI_STATE_FOCUSED;
// Check focused and selected item
for (int i = 0; i < visibleItems; i++)
{
if (CheckCollisionPointRec(mousePoint, itemBounds))
{
itemFocused = startIndex + i;
if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) itemSelected = startIndex + i;
break;
}
// Update item rectangle y position for next item
itemBounds.y += (GuiGetStyle(LISTVIEW, LIST_ITEMS_HEIGHT) + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING));
}
if (useScrollBar)
{
int wheelMove = GetMouseWheelMove();
startIndex -= wheelMove;
if (startIndex < 0) startIndex = 0;
else if (startIndex > (count - visibleItems)) startIndex = count - visibleItems;
endIndex = startIndex + visibleItems;
if (endIndex > count) endIndex = count;
}
}
else itemFocused = -1;
// Reset item rectangle y to [0]
itemBounds.y = bounds.y + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING) + GuiGetStyle(DEFAULT, BORDER_WIDTH);
}
//--------------------------------------------------------------------
// Draw control
//--------------------------------------------------------------------
DrawRectangleRec(bounds, GetColor(GuiGetStyle(DEFAULT, BACKGROUND_COLOR))); // Draw background
DrawRectangleLinesEx(bounds, GuiGetStyle(DEFAULT, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(LISTVIEW, BORDER + state*3)), guiAlpha));
// TODO: Draw list view header with file sections: icon+name | size | type | modTime
// Draw visible items
for (int i = 0; i < visibleItems; i++)
{
if (state == GUI_STATE_DISABLED)
{
if ((startIndex + i) == itemSelected)
{
DrawRectangleRec(itemBounds, Fade(GetColor(GuiGetStyle(LISTVIEW, BASE_COLOR_DISABLED)), guiAlpha));
DrawRectangleLinesEx(itemBounds, GuiGetStyle(LISTVIEW, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(LISTVIEW, BORDER_COLOR_DISABLED)), guiAlpha));
}
// TODO: Draw full file info line: icon+name | size | type | modTime
GuiDrawText(files[startIndex + i].name, GetTextBounds(DEFAULT, itemBounds), GuiGetStyle(LISTVIEW, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(LISTVIEW, TEXT_COLOR_DISABLED)), guiAlpha));
}
else
{
if ((startIndex + i) == itemSelected)
{
// Draw item selected
DrawRectangleRec(itemBounds, Fade(GetColor(GuiGetStyle(LISTVIEW, BASE_COLOR_PRESSED)), guiAlpha));
DrawRectangleLinesEx(itemBounds, GuiGetStyle(LISTVIEW, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(LISTVIEW, BORDER_COLOR_PRESSED)), guiAlpha));
GuiDrawText(files[startIndex + i].name, GetTextBounds(DEFAULT, itemBounds), GuiGetStyle(LISTVIEW, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(LISTVIEW, TEXT_COLOR_PRESSED)), guiAlpha));
}
else if ((startIndex + i) == itemFocused)
{
// Draw item focused
DrawRectangleRec(itemBounds, Fade(GetColor(GuiGetStyle(LISTVIEW, BASE_COLOR_FOCUSED)), guiAlpha));
DrawRectangleLinesEx(itemBounds, GuiGetStyle(LISTVIEW, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(LISTVIEW, BORDER_COLOR_FOCUSED)), guiAlpha));
GuiDrawText(files[startIndex + i].name, GetTextBounds(DEFAULT, itemBounds), GuiGetStyle(LISTVIEW, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(LISTVIEW, TEXT_COLOR_FOCUSED)), guiAlpha));
}
else
{
// Draw item normal
GuiDrawText(files[startIndex + i].name, GetTextBounds(DEFAULT, itemBounds), GuiGetStyle(LISTVIEW, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(LISTVIEW, TEXT_COLOR_NORMAL)), guiAlpha));
}
}
// Update item rectangle y position for next item
itemBounds.y += (GuiGetStyle(LISTVIEW, LIST_ITEMS_HEIGHT) + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING));
}
if (useScrollBar)
{
Rectangle scrollBarBounds = {
bounds.x + bounds.width - GuiGetStyle(LISTVIEW, BORDER_WIDTH) - GuiGetStyle(LISTVIEW, SCROLLBAR_WIDTH),
bounds.y + GuiGetStyle(LISTVIEW, BORDER_WIDTH), (float)GuiGetStyle(LISTVIEW, SCROLLBAR_WIDTH),
bounds.height - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH)
};
// Calculate percentage of visible items and apply same percentage to scrollbar
float percentVisible = (float)(endIndex - startIndex)/count;
float sliderSize = bounds.height*percentVisible;
int prevSliderSize = GuiGetStyle(SCROLLBAR, SLIDER_WIDTH); // Save default slider size
int prevScrollSpeed = GuiGetStyle(SCROLLBAR, SCROLL_SPEED); // Save default scroll speed
GuiSetStyle(SCROLLBAR, SLIDER_WIDTH, sliderSize); // Change slider size
GuiSetStyle(SCROLLBAR, SCROLL_SPEED, count - visibleItems); // Change scroll speed
startIndex = GuiScrollBar(scrollBarBounds, startIndex, 0, count - visibleItems);
GuiSetStyle(SCROLLBAR, SCROLL_SPEED, prevScrollSpeed); // Reset scroll speed to default
GuiSetStyle(SCROLLBAR, SLIDER_WIDTH, prevSliderSize); // Reset slider size to default
}
//--------------------------------------------------------------------
if (focus != NULL) *focus = itemFocused;
if (scrollIndex != NULL) *scrollIndex = startIndex;
*active = itemSelected;
return result;
}
#endif // USE_CUSTOM_LISTVIEW_FILEINFO
#endif // GUI_FILE_DIALOG_IMPLEMENTATION