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PushItemWidth() can take negative value to right-align items. Renamed GetItemWidth() to CalcItemWidth()

This commit is contained in:
ocornut 2015-02-10 21:07:26 +00:00
parent 5d31430785
commit 1e9f6cce7f
2 changed files with 39 additions and 31 deletions
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62
imgui.cpp
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@ -129,6 +129,7 @@
Occasionally introducing changes that are breaking the API. The breakage are generally minor and easy to fix.
Here is a change-log of API breaking changes, if you are using one of the functions listed, expect to have to fix some code.
- 2015/02/10 (1.32) - renamed GetItemWidth() to CalcItemWidth() to clarify its evolving behavior
- 2015/02/08 (1.31) - renamed GetTextLineSpacing() to GetTextLineHeightWithSpacing()
- 2015/02/01 (1.31) - removed IO.MemReallocFn (unused)
- 2015/01/19 (1.30) - renamed ImGuiStorage::GetIntPtr()/GetFloatPtr() to GetIntRef()/GetIntRef() because Ptr was conflicting with actual pointer storage functions.
@ -880,11 +881,11 @@ struct ImGuiDrawContext
bool LastItemHovered;
ImVector<ImGuiWindow*> ChildWindows;
ImVector<bool> AllowKeyboardFocus;
ImVector<float> ItemWidth;
ImVector<float> ItemWidth; // 0.0: default, >0.0: width in pixels, <0.0: align xx pixels to the right of window
ImVector<float> TextWrapPos;
ImGuiColorEditMode ColorEditMode;
ImGuiStorage* StateStorage;
int OpenNextNode;
int OpenNextNode; // FIXME: Reformulate this feature like SetNextWindowCollapsed() API
float ColumnsStartX; // Start position from left of window (increased by TreePush/TreePop, etc.)
float ColumnsOffsetX; // Offset to the current column (if ColumnsCurrent > 0). FIXME: This and the above should be a stack to allow use cases like Tree->Column->Tree. Need revamp columns API.
@ -3056,7 +3057,7 @@ void ImGui::PushItemWidth(float item_width)
{
ImGuiWindow* window = GetCurrentWindow();
item_width = (float)(int)item_width;
window->DC.ItemWidth.push_back(item_width > 0.0f ? item_width : window->ItemWidthDefault);
window->DC.ItemWidth.push_back(item_width == 0.0f ? window->ItemWidthDefault : item_width);
}
void ImGui::PopItemWidth()
@ -3065,10 +3066,18 @@ void ImGui::PopItemWidth()
window->DC.ItemWidth.pop_back();
}
float ImGui::GetItemWidth()
float ImGui::CalcItemWidth()
{
ImGuiWindow* window = GetCurrentWindow();
return window->DC.ItemWidth.back();
float w = window->DC.ItemWidth.back();
if (w < 0.0f)
{
// Align to a right-side limit
w = -w;
float width_to_right_edge = window->Pos.x + ImGui::GetContentRegionMax().x - window->DC.CursorPos.x;
w = ImMax(1.0f, width_to_right_edge - w);
}
return w;
}
static void SetFont(ImFont* font)
@ -3373,20 +3382,18 @@ void ImGui::SetNextWindowCollapsed(bool collapsed, ImGuiSetCondition cond)
ImVec2 ImGui::GetContentRegionMax()
{
ImGuiWindow* window = GetCurrentWindow();
ImVec2 m = window->Size - window->WindowPadding();
ImVec2 mx = window->Size - window->WindowPadding();
if (window->DC.ColumnsCount != 1)
{
m.x = GetColumnOffset(window->DC.ColumnsCurrent + 1);
m.x -= GImGui->Style.WindowPadding.x;
mx.x = ImGui::GetColumnOffset(window->DC.ColumnsCurrent + 1);
mx.x -= GImGui->Style.WindowPadding.x;
}
else
{
if (window->ScrollbarY)
m.x -= GImGui->Style.ScrollBarWidth;
mx.x -= GImGui->Style.ScrollBarWidth;
}
return m;
return mx;
}
ImVec2 ImGui::GetWindowContentRegionMin()
@ -3687,7 +3694,7 @@ void ImGui::LabelTextV(const char* label, const char* fmt, va_list args)
if (window->SkipItems)
return;
const ImGuiStyle& style = g.Style;
const float w = window->DC.ItemWidth.back();
const float w = ImGui::CalcItemWidth();
static char buf[1024];
const char* value_text_begin = &buf[0];
@ -4348,7 +4355,7 @@ bool ImGui::SliderFloat(const char* label, float* v, float v_min, float v_max, c
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const float w = window->DC.ItemWidth.back();
const float w = ImGui::CalcItemWidth();
if (!display_format)
display_format = "%.3f";
@ -4587,7 +4594,7 @@ static bool SliderFloatN(const char* label, float v[3], int components, float v_
return false;
const ImGuiStyle& style = g.Style;
const float w_full = window->DC.ItemWidth.back();
const float w_full = ImGui::CalcItemWidth();
const float w_item_one = ImMax(1.0f, (float)(int)((w_full - (style.FramePadding.x*2.0f + style.ItemInnerSpacing.x)*(components-1)) / (float)components));
const float w_item_last = ImMax(1.0f, (float)(int)(w_full - (w_item_one + style.FramePadding.x*2.0f + style.ItemInnerSpacing.x)*(components-1)));
@ -4637,7 +4644,7 @@ static bool SliderIntN(const char* label, int v[3], int components, int v_min, i
return false;
const ImGuiStyle& style = g.Style;
const float w_full = window->DC.ItemWidth.back();
const float w_full = ImGui::CalcItemWidth();
const float w_item_one = ImMax(1.0f, (float)(int)((w_full - (style.FramePadding.x*2.0f + style.ItemInnerSpacing.x)*(components-1)) / (float)components));
const float w_item_last = ImMax(1.0f, (float)(int)(w_full - (w_item_one + style.FramePadding.x*2.0f + style.ItemInnerSpacing.x)*(components-1)));
@ -4696,7 +4703,7 @@ static void Plot(ImGuiPlotType plot_type, const char* label, float (*values_gett
const ImVec2 text_size = ImGui::CalcTextSize(label, NULL, true);
if (graph_size.x == 0.0f)
graph_size.x = window->DC.ItemWidth.back();
graph_size.x = ImGui::CalcItemWidth();
if (graph_size.y == 0.0f)
graph_size.y = text_size.y;
@ -5094,7 +5101,7 @@ bool ImGui::InputFloat(const char* label, float *v, float step, float step_fast,
return false;
const ImGuiStyle& style = g.Style;
const float w = window->DC.ItemWidth.back();
const float w = ImGui::CalcItemWidth();
const ImVec2 text_size = CalcTextSize(label, NULL, true);
const ImGuiAabb frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, text_size.y) + style.FramePadding*2.0f);
@ -5226,7 +5233,7 @@ bool ImGui::InputText(const char* label, char* buf, size_t buf_size, ImGuiInputT
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const float w = window->DC.ItemWidth.back();
const float w = ImGui::CalcItemWidth();
const ImVec2 text_size = CalcTextSize(label, NULL, true);
const ImGuiAabb frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, text_size.y) + style.FramePadding*2.0f);
@ -5516,7 +5523,7 @@ static bool InputFloatN(const char* label, float* v, int components, int decimal
return false;
const ImGuiStyle& style = g.Style;
const float w_full = window->DC.ItemWidth.back();
const float w_full = ImGui::CalcItemWidth();
const float w_item_one = ImMax(1.0f, (float)(int)((w_full - (style.FramePadding.x*2.0f + style.ItemInnerSpacing.x) * (components-1)) / (float)components));
const float w_item_last = ImMax(1.0f, (float)(int)(w_full - (w_item_one + style.FramePadding.x*2.0f + style.ItemInnerSpacing.x) * (components-1)));
@ -5617,7 +5624,7 @@ bool ImGui::Combo(const char* label, int* current_item, bool (*items_getter)(voi
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const float w = window->DC.ItemWidth.back();
const float w = ImGui::CalcItemWidth();
const ImVec2 text_size = CalcTextSize(label, NULL, true);
const ImGuiAabb frame_bb(window->DC.CursorPos, window->DC.CursorPos + ImVec2(w, text_size.y) + style.FramePadding*2.0f);
@ -5679,19 +5686,19 @@ bool ImGui::Combo(const char* label, int* current_item, bool (*items_getter)(voi
combo_item_active |= (g.ActiveId == GetCurrentWindow()->GetID("#SCROLLY"));
// Display items
for (int item_idx = 0; item_idx < items_count; item_idx++)
for (int i = 0; i < items_count; i++)
{
ImGui::PushID((void*)(intptr_t)item_idx);
const bool item_selected = (item_idx == *current_item);
ImGui::PushID((void*)(intptr_t)i);
const bool item_selected = (i == *current_item);
const char* item_text;
if (!items_getter(data, item_idx, &item_text))
if (!items_getter(data, i, &item_text))
item_text = "*Unknown item*";
if (ImGui::Selectable(item_text, item_selected))
{
SetActiveId(0);
g.ActiveComboID = 0;
value_changed = true;
*current_item = item_idx;
*current_item = i;
}
if (item_selected)
{
@ -5827,7 +5834,7 @@ bool ImGui::ColorEdit4(const char* label, float col[4], bool alpha)
const ImGuiStyle& style = g.Style;
const ImGuiID id = window->GetID(label);
const float w_full = window->DC.ItemWidth.back();
const float w_full = ImGui::CalcItemWidth();
const float square_sz = (window->FontSize() + style.FramePadding.x * 2.0f);
ImGuiColorEditMode edit_mode = window->DC.ColorEditMode;
@ -6118,6 +6125,7 @@ void ImGui::NextColumn()
}
}
// FIMXE-OPT: This is called too often. We need to cache offset for active columns set.
float ImGui::GetColumnOffset(int column_index)
{
ImGuiState& g = *GImGui;

8
imgui.h
View File

@ -162,8 +162,8 @@ namespace ImGui
IMGUI_API void BeginChild(ImGuiID id, ImVec2 size = ImVec2(0,0), bool border = false, ImGuiWindowFlags extra_flags = 0); // "
IMGUI_API void EndChild();
IMGUI_API bool GetWindowIsFocused();
IMGUI_API ImVec2 GetContentRegionMax(); // window or current column boundaries
IMGUI_API ImVec2 GetWindowContentRegionMin(); // window boundaries
IMGUI_API ImVec2 GetContentRegionMax(); // window or current column boundaries, in windows coordinates
IMGUI_API ImVec2 GetWindowContentRegionMin(); // window boundaries, in windows coordinates
IMGUI_API ImVec2 GetWindowContentRegionMax();
IMGUI_API ImDrawList* GetWindowDrawList(); // get rendering command-list if you want to append your own draw primitives.
IMGUI_API ImFont* GetWindowFont();
@ -195,9 +195,9 @@ namespace ImGui
IMGUI_API void PopStyleVar(int count = 1);
// Parameters stacks (current window)
IMGUI_API void PushItemWidth(float item_width); // width of items for the common item+label case. default to ~2/3 of windows width.
IMGUI_API void PushItemWidth(float item_width); // width of items for the common item+label case, pixels. 0.0f = default to ~2/3 of windows width, >0.0f: width in pixels, <0.0f align xx pixels to the right of window
IMGUI_API void PopItemWidth();
IMGUI_API float GetItemWidth();
IMGUI_API float CalcItemWidth(); // width of item given pushed settings and current cursor position
IMGUI_API void PushAllowKeyboardFocus(bool v); // allow focusing using TAB/Shift-TAB, enabled by default but you can disable it for certain widgets.
IMGUI_API void PopAllowKeyboardFocus();
IMGUI_API void PushTextWrapPos(float wrap_pos_x = 0.0f); // word-wrapping for Text*() commands. < 0.0f: no wrapping; 0.0f: wrap to end of window (or column); > 0.0f: wrap at 'wrap_pos_x' position in window local space.